JPH07257199A - Power plant structure of open car - Google Patents

Abstract

PURPOSE:To provide the same running performance as that in the closed condition when an open car to selectively employ the closed condition where a cabin part is covered by a roof forming part and the open condition where the cabin part is not covered travels in the open condition. CONSTITUTION:A power plant structure consists of an engine 17 mounted on an open car 1A to selectively employ the closed condition where the upper part of a cabin part in a car body 2 is covered by an awning part 7 and the open condition where the upper part is not covered and a sub radiator 30 in the car body 2 arranged in the position related to the air flow passage to be formed on the upper side of the cabin part when the open car 1A travels in the open condition, and a running air passage 38L to guide the running air flowing in the air flow passage to the sub radiator 30 is provided on the car body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention constitutes a power plant in an open car having a vehicle body in which an upper part of a passenger compartment is selectively covered by a roof forming portion.
The power plant structure of an open car.

[0002]

2. Description of the Related Art In a vehicle, a roof forming portion such as a hood (soft top) or a detachable hard top, which is provided separately from a vehicle body, covers an upper portion of a vehicle interior portion of the vehicle body. In an open car that can be selectively covered and uncovered, under the condition that the upper part of the passenger compartment is covered by a roof forming part such as a hood or a removable hard top, When a so-called closed state that can be shielded from the outside is obtained, and when the roof forming part such as a hood or a detachable hard top does not cover the upper part of the vehicle interior part, the vehicle interior part is taken. A so-called open state in which is an open space is obtained.

In an open car provided with a roof forming portion provided separately from such a vehicle body, for example,
As disclosed in Japanese Patent Laid-Open No. 63-188520, a shielding member extending in the vehicle width direction is arranged at the rear of a seat installed on the vehicle body, and when the vehicle is placed in an open state, the shielding member is located above the vehicle body. Those that are made to project are proposed. In an open car in which such a shielding member is arranged at the rear part of the seat, when the vehicle is driven in an open state, the air flow formed around the vehicle body is accompanied by the front windshield along the front windshield. A part of the traveling wind that formed the upward airflow is directed toward the lower rear side of the seat, and the formed airflow is swirled in the vehicle interior by the shielding member that projects upward toward the vehicle body. It is possible to prevent the situation where the user gets into the room.

[0004]

When the open car is allowed to run in the open state, the open car is kept in a closed state like an air flow to be caught in the rear side of the seat in the passenger compartment of the vehicle body. An airflow that is not formed when the vehicle is driven is formed around the vehicle body, which causes a problem that the traveling resistance becomes larger than that when traveling in a closed state. Due to such an increase in running resistance, in an open car, when traveling in an open state, for example, the depression amount of the accelerator pedal is equal to the depression amount in the closed state. However, even if it is said, there will be a situation in which the acceleration will be lower than in the closed state, and as a result, the driver will feel uncomfortable, especially when shifting from normal driving to accelerated driving. is there.

In order to deal with such a problem, an open car opens a radiator, which is one of engine auxiliary machines constituting a power plant structure mounted on the engine together with the engine, when the engine is in an operating state. A main radiator that exerts a cooling function when the car is in either an open state or a closed state, and a sub radiator that exerts a cooling function only when the engine is in operation and the open car is in the open state. As a result, the cooling efficiency of the engine cooling system is improved when the open car is running in the open state compared to when the open car is running in the closed state. To improve engine output performance when the convertible is in the open state. It is conceivable. However, in such a case, usually, in addition to the main radiator that is installed in the engine room in order to obtain a sufficient cooling effect by utilizing the air flow generated therein, the auxiliary radiator is used to reduce the space in the engine room. It will be difficult to install without inducing, or even if the sub radiator is housed in the engine room, the cooling effect by the sub radiator will not be obtained as expected, and further However, there is an inconvenience that the fuel efficiency is deteriorated.

Further, when the open car travels in the open state, for example, control of the fuel supply amount relating to the output performance of the engine is performed to increase the engine output, and thereby the open state is also maintained. It may be possible to increase the acceleration of an open car that runs in an open state by increasing the engine output during running in and under the engine output during running in a closed state. In this case, the fuel economy will be worsened.

In view of such a point, the present invention constitutes a power plant of an open car having a vehicle body in which the roof forming portion selectively covers the upper portion and the non-covered portion of the passenger compartment. On this occasion, the running performance of the convertible when running in an open state, in particular,
A power plant for an open car that will be able to obtain a state in which the acceleration performance is equivalent to that when the open car runs under a closed condition, while effectively suppressing the deterioration of fuel efficiency. It is intended to provide a structure.

[0008]

In order to achieve the above object, the power plant structure for an open car according to the first aspect of the present invention is such that the upper portion of the vehicle interior portion of the vehicle body is covered by the roof forming portion. And an uncovered second state, that is, an engine mounted on an open car that selectively takes a closed state and an open state, and a vehicle when traveling under the open state of the open car in the vehicle body. An engine accessory arranged at a position related to the air flow path formed on the upper side of the room portion, and a traveling wind forming a traveling air passage provided on the vehicle body for guiding traveling wind flowing through the air flow path to the engine accessory. And a passage forming portion.

The engine accessory in the power plant structure of the open car according to the first aspect of the present invention is specifically, for example, a radiator constituting a cooling system associated with the engine or an engine associated with the engine. It is an air cleaner that constitutes the intake system.

The power plant structure for an open car according to the second aspect of the present invention has an engine mounted on the open car that selectively takes a closed state and an open state, and the open car is in the closed state and the open state. The state determining means for determining which of the two is in the operating state detecting means for detecting the operating state of the engine, and the control means for the control target involved in the output performance of the engine, the control means, from the state determining means When the obtained discriminating output indicates that the open car is in the open state and the detection output obtained from the operating state detecting means indicates that the operating state of the engine is a specific state, the state of The discriminating output obtained from the discriminating means indicates that the open car is in the closed state, and the driving is performed. Detection output obtained from the state detection means than when representing the operating state of the engine is of particular, is intended to perform control for increasing the engine output, configured.

Further, the power plant structure for an open car according to the third aspect of the present invention is an engine mounted on an open car that selectively takes a closed state and an open state, and an automatic transmission connected to the engine. A state determining means for determining whether the open car is in a closed state or an open state, a traveling speed detecting means for detecting a traveling speed of the open car, and a control for a control target involved in a shift characteristic of the automatic transmission. When the determination output obtained from the state determination means indicates that the open car is in the open state, the control means determines the shift characteristic of the automatic transmission according to the detection output obtained from the traveling speed detection means. For the control target involved, the discrimination output obtained from the state discrimination means indicates that the open car is in the closed state. Compared to time, it is assumed to perform control for improving the acceleration performance of an open car, and.

[0012]

In the power plant structure for an open car according to the first aspect of the present invention configured as described above, the open car is placed in the open state in the engine auxiliary machine arranged on the vehicle body of the open car. The traveling wind that flows through the air flow path that is formed when the vehicle is originally driven is guided through the traveling air passage forming portion, so that when the engine auxiliary machine travels while the convertible is in the open state, it does not open. It is said that the car performs its function more efficiently than when the car runs in a closed state.
Therefore, the output performance of the engine is improved when the open car travels in the open state, compared to when the open car travels in the closed state, and the open car travels in the open state. The running performance, especially the acceleration performance, when the vehicle is driven can be made equivalent to that when the open car is traveling in the closed state. Moreover, the improvement of the running performance when the open car is running in the open state can be obtained while the deterioration of the fuel consumption is effectively suppressed.

Further, in the power plant structure of the open car according to the second aspect of the present invention, when the open car is traveling while being judged to be in the open state by the state judging means, the operation is performed. When the operating state of the engine detected by the state detection means, for example, which is represented by the engine speed, becomes a specific one, the control means determines the supercharging pressure in the supercharger attached to the engine. Compared with the case where the controlled object involved in the output performance of the vehicle runs under the condition that the open car is in the closed state by the state determination means,
Controlled to increase engine power. As a result, the output performance of the engine is improved when the open car is running in the open state, compared to when it is running in the closed state, and when the open car is in the open state. Driving performance when traveling,
In particular, the acceleration performance can be made equivalent to that when the convertible car runs in the closed state. Moreover, even in such a case, the improvement of the running performance when the open car is running in the open state,
It will be obtained while the deterioration of fuel efficiency is effectively suppressed.

Further, in the power plant structure for an open car according to the third aspect of the present invention, when the open car is traveling under the condition that the condition judging means judges that the open car is in the open condition, control is performed. By means of, for example,
Compared with the case where the downshift operation by the automatic transmission travels while the open car is determined to be in the closed state by the state determination means, the small throttle opening-
Compared to when the open car is traveling while it is determined that the open car is in the closed state by the state determination means, the shift up operation by the automatic transmission is performed at a high vehicle speed side. Throttle opening-It is supposed to be performed at the low vehicle speed side, and the shift characteristics of the automatic transmission are supposed to improve the acceleration capability of the open car compared to when the vehicle is running in the closed state. It
As a result, when the open car travels in the open state, the running resistance is greater than when running in the closed state,
It means that the actual acceleration performance can be made equivalent to that when traveling under the closed condition.

[0015]

1 and 2 show a first example of a power plant structure of an open car according to the present invention, together with an open car to which it is applied.

An open car 1A shown in FIGS. 1 and 2.
In addition, the vehicle interior part in which the driver's seat 3 and the passenger seat 4 are installed is provided, and the front windshield 5
1 is attached to the vehicle body 2, a hood portion 7 that selectively takes a developed state as shown by a dashed line in FIG. 1 and a folded state as shown by a broken line in FIG. Equipped. When the hood portion 7 is in the unfolded state, the hood portion 7 is placed in a state of covering the upper portion and the rear portion of the vehicle compartment portion to set the open car 1A in the closed state and also in the folded state. At this time, the open car 1A is stored in an open state by being stored in a hood storage portion 8 provided at a position which is a rear portion of the driver's seat 3 and the passenger seat 4 in the vehicle compartment portion without covering the upper portion and the rear portion of the vehicle compartment portion. And eggplant

The front windshield 5 is attached to the vehicle body 2
At the upper end of the window frame forming part 9 to be assembled with the hood part 7 when the convertible top part 7 is in a deployed state and the open car 1A is in a closed state, for example, it is in an off state, and
When the hood portion 7 is folded and stored in the hood storage portion 8 and the open car 1A is placed in the open state, for example,
A pair of state determination switches 10 that are turned on are arranged. The front windshield 5 and the window frame forming part 9 constitute a vehicle interior front part forming part forming a front part of the vehicle interior part. Further, a left rear fender portion 2L and a right rear fender portion 2R that form a part of the vehicle body 2 are arranged on the left side portion and the right side portion of the hood storage portion 8, respectively.

In the open car 1A having the roof forming portion formed by the hood portion 7 that selectively takes the developed state and the folded state, the hood portion 7 is folded and stored in the hood storage portion 8. When the vehicle is driven under the open state, as shown by the white arrow in FIG. 1, the air flow toward the upper part of the vehicle body along the vehicle compartment front part forming portion including the front windshield 5 is increased. The air flow path a through which the traveling wind that forms the flow direction flows toward the hood storage portion 8 is formed on the upper side of the vehicle interior portion. As a result, open car 1A
When the vehicle is driven in an open state, a relatively large traveling wind pressure acts on the hood storage portion 8 and its peripheral portion, which are supposed to be arranged at a position related to the air flow path a in the vehicle compartment. It will be.

A steering wheel 12 supported by a steering shaft 11 is arranged in front of the driver's seat 3 in a vehicle interior portion of the vehicle body 2 and an engine room 14 and a vehicle provided in a front portion of the vehicle body 2 are arranged. An engine is provided with a dash panel 15 for partitioning the interior of the passenger compartment, and an automatic transmission 16 having a shift lever 13 arranged between the driver's seat 3 and the passenger seat 4 is connected in the engine room 14. 17 are housed. The automatic transmission 16 is provided with a propeller shaft 19 extending between the driver's seat 3 and the passenger seat 4 in the vehicle interior portion in the front-rear direction of the vehicle and covered by a floor tunnel portion (not shown).
It is connected to a differential gear mechanism 22 that is connected to a rear wheel 21 of front wheels 20 and rear wheels 21 arranged on the vehicle body 2.

Engine 1 in engine room 14
In the vicinity of 7, a main radiator 26 having cooling water circulation pipes 24 and 25 is arranged. Main radiator 26
Is connected to a cooling water inlet port 27 of a water jacket provided in the engine 17 through a cooling water circulation pipe 24, and is connected to a cooling water discharge port portion 28 of the water jacket through a cooling water circulation pipe 25. The pump / open / close valve unit 29 is connected. The main radiator 26 supplies cooling water to the water jacket provided in the engine 17 through the cooling water circulation pipe 24 when the pump housed in the pump / open / close valve unit 29 is put into operation in accordance with the operation of the engine 17. At the same time, a part of the cooling water circulating through the water jacket is returned through the cooling water circulation pipe 25.

The sub radiator 30 which constitutes the cooling system of the engine 17 together with the main radiator 26 is below the hood storage portion 8 provided in the rear portion of the driver's seat 3 and the passenger seat 4 in the vehicle body 2. It is arranged so as to extend in the vehicle width direction at a position, that is, at a position related to an air flow path a through which traveling wind generated when the convertible car 1A is caused to travel in an open state flows. Below the sub radiator 30, vehicle body frames 37L and 37R extending in the vehicle front-rear direction are arranged, and a bottom portion having a portion which is located above the sub radiator 30 and forms the bottom of the hood storage portion 8 is formed. The member 31 is provided with a traveling wind introduction port 31A formed so as to extend in the vehicle width direction so as to face the sub radiator 30, and a shutter member 32 that selectively opens and closes the traveling wind introduction port 31A. .

The sub-radiator 30 is one of engine accessories that form the power plant in the open car 1A together with the engine 17, and as shown in FIG.
The end on the left rear fender portion 2L side is the bracket 34
The passenger compartment partitioning member 3 that supports the bottom forming member 31 via the
It is attached to 5 and the right rear fender part 2
Although not shown, the R-side end is also attached to the vehicle compartment partitioning member 35 via a bracket. The vehicle compartment partitioning member 35 is provided on the driver's seat 3 in the vehicle interior of the vehicle body 2.
Also, it is located in the rear part of the passenger seat 4 and divides a vehicle compartment part and a trunk room provided in the rear part thereof, and is connected to a part facing the traveling wind introduction port 31A provided in the bottom forming member 31 and that part. A relatively large opening 35 </ b> A is provided in the rear portion of the vehicle body, and together with the bottom forming member 31, the rear portion forming portion that forms the rear portion of the vehicle portion is configured. The intermediate portion sandwiched between both ends of the sub radiator 30 is provided with the passage forming members 36L and 3L.
It is supported by 6R. Passage forming members 36L and 3
6R has one end portion for supporting the sub radiator 30 in each of them connected and integrated, and is supported by the vehicle body frames 37L and 37R, respectively. The passage forming member 36L includes a left traveling wind passage 38L that accommodates the left side portion of the sub radiator 30 and the vehicle compartment partitioning member 35.
Further, the passage forming member 36R forms a left traveling wind passage 38R accommodating the right side portion of the sub radiator 30 together with the vehicle compartment partitioning member 35.

The other end side portion of the passage forming member 36L forming the left traveling wind passage 38L is a cylindrical portion, and has a cross-sectional area larger than the cross-sectional area of the left traveling wind passage 38L and the left rear fender. A running wind exhaust port 39L that faces the outside of the vehicle from the portion 2L is formed. Further, as shown in FIG. 2, the other end side portion of the passage forming member 36R forming the right traveling air passage 38R is also a cylindrical portion, and has a cross-sectional shape larger than the cross-sectional shape of the right traveling air passage 38R. Then, the running wind exhaust port 39R facing the outside of the vehicle is formed from the right rear fender portion 2R.

Therefore, one opening of the vehicle compartment partitioning member 35 and the passage forming member 36L serves as the running air inlet 31A provided in the bottom forming member 31, and the other opening is provided in the passage forming member 36L. A left traveling wind passage 38L, which is used as the traveling wind exhaust port 39L, is formed as a duct member in the vicinity of the hood storage portion 8. Further, the vehicle compartment partitioning member 35 and the passage forming member 36R have one opening at the bottom. Forming member 31
Is formed in the vicinity of the hood storage section 8R, and the right side traveling wind passage 38R is defined as the traveling wind introduction port 31A provided in the above and the other opening serves as the traveling wind discharge port 39R provided in the passage forming member 36R. It constitutes a duct member. The sub radiator 30 has a left traveling wind passage 38L extending from the traveling wind introduction port 31A to the traveling wind discharge port 39L and a right traveling wind passage 38R extending from the traveling wind introduction port 31A to the traveling wind discharge port 39R. It is supposed to be located in the upstream part of the.

The shutter member 32 that selectively opens and closes the traveling air inlet 31A has an end portion located on the left rear fender portion 2L side as shown in FIG. 3 and FIG. A rail 40 extending in the front-rear direction of the vehicle body in a portion that forms a relatively large opening 35A provided
The end portion located on the right side of the rear fender portion 2R is not shown in the drawing.
A relatively large opening 35A provided in the passenger compartment partitioning member 35
It is supposed to be engaged with a rail that extends in the front-rear direction of the vehicle body at the portion forming the. A rack gear 41 is arranged in a portion of the lower surface of the shutter member 32 close to the rail 40, and a motor 45 with a reduction gear in which a pinion gear 42 that meshes with the rack gear 41 is arranged is provided in the vehicle compartment partitioning member 35. It is installed. Rack gear 41 placed in mutual mesh with pinion gear 42
The shutter member 32 in which is arranged is moved along the rail 40 in accordance with the operation of the motor 45, and the traveling wind introduction port 31A as shown by the one-dot chain line in FIG.
Is closed and a second position where the traveling air inlet 31A is opened as shown by the solid line in FIG. 4 is selectively placed. When the open car 1A is in the closed state and the state determination switch 10 is in the off state, the motor 45 causes the shutter member 32 to assume the first position in which the traveling wind introduction port 31A is closed. When the open car 1A is placed in the open state and the state determination switch 10 is thereby turned on, the traveling wind introduction port 31A is opened in the shutter member 32.
It is put into the operating state to take the position of.

As described above, when the open car 1A is placed in the open state, the shutter member 32 is set to the second position in which the traveling air inlet 31A is opened, whereby the open car 1A is opened. When the vehicle is made to travel under the condition, the traveling wind that flows through the air flow path a heading to the hood storage section 8 from above is provided in the bottom forming member 31 forming the bottom of the hood storage section 8. Through 31A, the passenger compartment partitioning member 35 and the passage forming member 36
The left traveling wind passage 38L formed by L and accommodating the left side portion of the sub radiator 30, and the right traveling wind formed by the vehicle compartment partitioning member 35 and the passage forming member 36R and accommodating the right side portion of the sub radiator 30. Passage 3
The air is introduced into each of the 8Rs at a relatively high speed, and is discharged to the outside of the vehicle from the traveling wind exhaust port 39L provided in the passage forming member 36L and the traveling wind exhaust port 39R provided in the passage forming member 36R.

On the other hand, as shown in FIGS. 5 and 6, the hood portion 7 is rotatably attached to the hood cloth 50 and the left and right rear fender portions 2L and 2R supporting the hood cloth 50, respectively. The left and right main frame members 51L and 51R, and the front end frame member 5 that is selectively engaged with the window frame forming portion 9.
And a frame structure including two. The front end frame member 52 in the frame structure is engaged with the window frame forming portion 9 when the hood portion 7 is in the deployed state as shown in FIG. 5, and maintains the deployed state of the hood portion 7. further,
The front connecting frame member 53L and the rear connecting frame member 54L that connect the left main frame member 51L and the front end frame member 52 in the frame structure are rotatably connected by a rotary connecting member 55L. The rotation connecting member 55L allows rotation in a direction close to the surface of the front connecting frame member 53L facing the hood cloth 50 of the rear connecting frame member 54L up to a predetermined angle range. Similarly, the front connecting frame member 53R and the rear connecting frame member 54R connecting the right main frame member 51R and the front end frame member 52 are also rotatably connected by the rotary connecting member 55R, and the rotary connecting member is also provided. 55R is similar to the case where the rotation connecting member 55L allows the front connecting frame member 53L to rotate in the direction approaching the surface of the rear connecting frame member 54R that faces the top cloth 50 of the rear connecting frame member 54R. It is supposed to allow up to an angle range. Then, the front connecting frame member 53L
Both end portions of a flat plate-shaped member 56 extending in the vehicle width direction are attached to 53R and 53R, respectively.

A hood portion 7 provided with such a flat plate-like member 56.
When the open car 1A is folded and stored in the hood storage portion 8 as shown by the broken line in FIG. 1, the front connecting frame members 53L and 53R in the frame structure are respectively rearward Connection frame member 54L
54R and linearly extending from the traveling air introduction port 31 opened by the shutter member 32 in the second position.
As shown in FIGS. 2 and 6, in the first state in which A is covered, in the rear connecting frame member 54L, the front connecting frame member 53L is rotated to the rotation position regulated by the rotary connecting member 55L. The front connecting frame member 53 is rotated in a direction approaching the surface facing the hood cloth 50.
The traveling air introduction port 31A is rotated to a rotational position regulated by the rotational coupling member 55R in a direction close to the surface of the rear coupling frame member 54R that faces the hood cloth 50, and is opened. And a second state in which it does not cover is selectively obtained.

When the hood portion 7 in the folded state is placed in the second state, the front connecting frame member 53L placed in the rotating position regulated by the rotating connecting members 55L and 55R, respectively.
By 53R, the flat plate-shaped member 56 is made to project upward from the vehicle body 2 in an inclined state in which the flat member 56 is tilted rearward. In this way, the flat plate-shaped member 56 that is inclined from the vehicle body 2 and projects upward is
The shutter member 32 having the above position is positioned so as to face the driver's seat 3 and the passenger seat 4 with the traveling air inlet 31A opened. As a result, the hood 7
When the open car 1A travels under the condition that the flat plate-shaped member 56 in the above-mentioned protrudes upward from the vehicle body 2, the flat-plate-shaped member 56 in the hood portion 7 travels along the airflow path a. As a result, a traveling wind passage is formed to direct the wind to the traveling wind inlet 31A in the open state, and as a result, the traveling wind flowing through the air flow path a passes through the traveling wind inlet 31A in the opened state. , Sub radiator 3
0 is efficiently introduced into the left and right traveling wind passages 38L and 38R accommodating the left side portion and the right side portion, respectively.

An auxiliary passage member 5 facing the driver's seat 3 and the passenger's seat 4 with the traveling air inlet 31A interposed therebetween is provided on the upper surface of the bottom forming member 31 forming the bottom of the hood storage section 8.
7 is provided. The auxiliary passage member 57, when the flat plate member 56 in the folded hood portion 7 is placed in a state of protruding upward from the vehicle body 2, the lower end portion of the flat plate member 56 and the bottom portion forming member 31. And the traveling air flowing through the airflow path a together with the flat plate member 56 is efficiently guided to the lower side of the hood storage section 8.

An auxiliary radiator 30 disposed upstream of each of the traveling air passages 38L and 38R having the traveling air inlet 31A as one opening has one end connected to the downstream portion of the cooling water circulation pipe 24. The other end of the cooling water circulation pipe 46 is connected, and the other end of the cooling water circulation pipe 47 whose one end is connected to the pump / open / close valve unit 29 is also connected. The cooling water circulation pipe 47 keeps the open car 1A in the closed state even when the pump housed in the pump / open / close valve unit 29 is in the operating state by the operation of the engine 17, and the state determination switch 10
Is turned off, the on-off valve housed in the pump / on-off valve unit 29 shuts off the water jacket provided in the engine 17. As a result, the sub radiator 30 becomes the engine 17
The cooling water is not circulated between the water jacket and the water jacket provided in the engine, so that the cooling water does not substantially participate in the cooling of the engine 17, and the cooling of the engine 17 is performed by the main radiator 26. Become.

In the cooling water circulation pipe 47, the pump housed in the pump / open / close valve unit 29 is put into operation by the operation of the engine 17, and the open car 1A is put into the open state, so that the state determination switch 1
When 0 is turned on, the pump / open / close valve unit 29
The water jacket provided in the engine 17 is connected to the water jacket through the open / close valve housed in the engine. As a result, the sub radiator 30 is brought into a state of circulating the cooling water with the water jacket provided in the engine 17 through the cooling water circulation pipe 46 and the cooling water circulation pipe 47, and contributes to the cooling of the engine 17. Is
As a result, the engine 17 is cooled by the main radiator 26.
In addition to being performed by the sub radiator 30, it is also performed by the sub radiator 30, so that the cooling action on the engine 17 is significantly improved.

By doing so, the open car 1A travels in the open state in which the air flow path a through which the traveling wind flows is formed, and travels by the shutter member 32 which is in the second position. When the wind introduction port 31A is opened and the sub radiator 30 cools the engine 17 together with the main radiator 26, the folded top portion 7 has the flat plate member 56 with the vehicle body. When placed in the second state in which the main body 2 is projected upward, the traveling wind flowing through the airflow path a passes through the traveling wind inlet 31A to the left side portion and the right side portion of the sub radiator 30, respectively. The state is such that the left traveling wind passage 38L and the right traveling wind passage 38R that have been housed pass through at a relatively high speed. As a result, heat is radiated very effectively in the sub radiators 30 arranged on the upstream sides of the left and right traveling air passages 38L and 38R, respectively, and the cooling efficiency of the sub radiator 30 increases the load on the engine 17. Can be increased without. As a result, the output performance of the engine 17 is improved while the deterioration of fuel efficiency is effectively suppressed.

7 and 8 show a second example of the power plant structure of an open car according to the present invention, together with an open car to which it is applied. The example shown in FIGS. 7 and 8 corresponds to a case where two sub radiators are provided in place of the sub radiator 30 in the first example shown in FIGS. 1 and 2, and two sub radiators are provided. The structure of the parts other than the sub radiator is substantially the same as that of the first example shown in FIGS. 1 and 2. In FIGS. 7 and 8, the parts corresponding to the respective parts and members shown in FIGS. 1 and 2 are denoted by the same reference numerals as those in FIGS. 1 and 2, and duplicate description thereof will be omitted. To be done.

The open car 1B shown in FIGS. 7 and 8.
In FIG. 7, the vehicle body body 2 having the front windshield 5 assembled therein is selectively placed in a deployed state as shown by a dashed line in FIG. 7 and a folded state as shown by a broken line in FIG. It is equipped with a hood 60. Like the hood portion 7 shown in FIGS. 1 and 2, when the hood portion 60 is in the deployed state, the hood portion 60 covers the upper and rear portions of the vehicle interior portion to set the open car 1B in the closed state, and When the vehicle is folded, the hood storage portion 8 provided at the rear of the driver's seat 3 and the passenger seat 4 in the vehicle interior portion does not cover the upper and rear portions of the vehicle interior portion. Stored, convertible 1B
The open state. Then, the pair of state determination switches 10 arranged in the window frame forming portion 9 are, for example, turned off when the convertible top 60 is in the deployed state and the open car 1B is in the closed state, Further, when the hood portion 60 is folded and stored in the hood storage portion 8 and the open car 1B is placed in the open state, for example, it is turned on.

The bottom portion forming member 61 having a portion forming the bottom portion of the hood storage portion 8 is not provided with the auxiliary passage member 57 provided in the bottom portion forming member 31 shown in FIG. Other configurations are similar to those of the bottom forming member 31, and a running wind introducing port 61A corresponding to the running wind introducing port 31A provided in the bottom forming member 31 is provided, as shown in FIG. Together with the vehicle compartment partitioning member 35, a vehicle-cabin rear portion forming portion that forms a rear portion of the vehicle compartment is configured. Then, when the open car 1B is closed, the traveling wind introduction port 61A provided in the bottom portion forming member 61 is also closed by the shutter member 32 that takes the first position, and the open car 1B is opened. The shutter member 32 that assumes the second position when brought into the state
It is opened by.

Further, one opening is used as a running air inlet 61A provided in the bottom forming member 61, and the other opening is used as a running air outlet 39L provided in the passage forming member 36L. A grill member 64L is attached to a portion of the passage forming member 36L that forms the duct member that forms the wind passage 38L in the vicinity of the hood storage portion 8 together with the vehicle compartment partitioning member 35 that forms the traveling air outlet 39L. . Similarly, the right traveling wind passage has one opening serving as a traveling wind introduction opening 61A provided in the bottom forming member 61 and the other opening serving as a traveling wind discharge opening 39R provided in the passage forming member 36R. The grill member 64R is also attached to a portion of the passage forming member 36R, which forms the duct member 38R near the hood storage 8, together with the passenger compartment partitioning member 35, which forms the traveling air outlet 39R. As shown in FIG. 9, the grill member 64L is provided with a plurality of air outlets 64A, and although not shown, the grill member 64R is also provided with a plurality of air outlets.

The passage forming member 36L is provided in the vicinity of the grill member 64L on the downstream side of the left traveling air passage 38L.
The sub-radiator 63L is arranged in a state of being supported by the passage forming member 36R in the vicinity of the grill member 64R on the downstream side of the right traveling air passage 38R. ing. These sub radiators 63L and 63R form a cooling system for the engine 17 together with the main radiator 26 arranged in the engine room 14 provided in the front part of the vehicle body 2, and each of them serves as a power plant in the open car 1B. It is said to be one of the engine accessories that is formed together with this.

The sub radiator 63L is a common pipe 6 extending from a cooling water inlet port 27 of a water jacket provided in the engine 17 via a cooling water circulation pipe 65A.
6 and a common pipe 67 extending from a pump / open / close valve unit 29 arranged at a cooling water discharge port portion 28 of a water jacket provided in the engine 17 via a cooling water circulation pipe 65B. . The sub radiator 63R is connected to the common pipe 66 via the cooling water circulation pipe 68A and is also connected to the common pipe 67 via the cooling water circulation pipe 68B.

The common pipe 67 connecting the cooling water circulation pipe 65B extending from the sub radiator 63L and the cooling water circulation pipe 68B extending from the sub radiator 63R activates the pump housed in the pump / open / close valve unit 29 by the operation of the engine 17. Even if it is placed, the open car 1B is closed and the state determination switch 10
Under the off state, the on-off valve housed in the pump / on-off valve unit 29 shuts off the water jacket provided in the engine 17.
As a result, the sub radiators 63L and 63R are brought into a state in which the cooling water is not circulated between the sub radiators 63L and 63R and the water jacket provided in the engine 17, so that the engine 1 is substantially cooled.
The cooling of the engine 17 is not performed, and the cooling of the engine 17 is performed by the main radiator 26.

Further, the common pipe 67 connecting the cooling water circulation pipe 65B extending from the sub radiator 63L and the cooling water circulation pipe 68B extending from the sub radiator 63R is
The pump / open / close valve unit 2 is operated by the operation of the engine 17.
While the pump housed in 9 is put into operation,
When the open car 1B is opened and the state determination switch 10 is turned on, the open car 1B is connected to the water jacket provided in the engine 17 through the open / close valve housed in the pump / open / close valve unit 29. As a result, the sub radiator 63L becomes the cooling water circulation pipe 6
The cooling water is circulated between the water jacket provided in the engine 17 and the cooling water circulation pipe 65B through the 5A, the common pipe 66, the common pipe 67, and the cooling water circulation pipe 65B to contribute to the cooling of the engine 17. . Similarly, the sub radiator 63R also includes the cooling water circulation pipe 68.
The cooling water is circulated between the water jacket provided in the engine 17 and the cooling water circulation pipe 68B through A, the common pipe 66, the common pipe 67, and the cooling water circulation pipe 68B to contribute to the cooling of the engine 17. . As a result, the engine 17 is cooled by the main radiator 26 and the sub radiators 63L and 6L.
This is also performed by each of the 3Rs, and the cooling action on the engine 17 is greatly improved.

In this way, when the open car 1B is traveling in the open state, the shutter member 3 is driven by the motor 45 arranged in the passenger compartment partitioning member 35.
2 is placed in the second position where the running air inlet 61A is opened, and the common pipe 67 connecting the cooling water circulation pipe 65B extending from the sub radiator 63L and the cooling water circulation pipe 68B extending from the sub radiator 63R is connected to the engine 17 The auxiliary radiators 63L and 63R cool the engine 17 together with the main radiator 26 so that the auxiliary radiators 63L and 63R are in communication with the water jacket. Then, under such circumstances, as shown in FIG.
The traveling wind that flows through the air flow path a extending from above to the hood storage portion 8 and causes a relatively large wind pressure to act on the hood storage portion 8 and its peripheral portions is the traveling wind passage 38L and the traveling wind passage 3
Each of the 8Rs passes through at a relatively high speed, so that the sub radiator 63L arranged in the downstream side portion of the left traveling wind passage 38L and the downstream radiator 63L arranged in the right traveling wind passage 38R. Radiation in the sub radiator 63R is extremely effectively performed, and the sub radiators 63L and 63R are
The cooling efficiency of each of the above is increased without increasing the load of the engine 17. As a result, the output performance of the engine 17 is improved while the deterioration of fuel efficiency is effectively suppressed.

In the open car 1B described above, the vehicle body 2 is equipped with the hood portion 60 that selectively takes the deployed state and the folded state.
Instead of 0, the hood portion 7 provided with the flat plate-like member 56 as shown in FIGS. 1 and 2 is equipped, so that when the vehicle is made to run under the open condition, the air flow path a
The traveling wind flowing through may be efficiently guided below the hood storage portion 8 by the flat plate-shaped member 57 protruding upward from the vehicle body 2.

10 and 11 show a third example of the power plant structure of an open car according to the present invention, together with an open car to which it is applied. 10 and 11, parts corresponding to the respective parts and members shown in FIGS. 1 and 2 are denoted by the same reference numerals as those in FIGS. 1 and 2, and redundant description thereof will be given. Is omitted.

In the open car 1C shown in FIG. 10 and FIG. 11, the main body 26 having the front windshield 5 assembled therein, the main radiator 26 housed in the engine room 14 forming the front part thereof, and the main radiator 26 of the engine 17. The sub radiator 30 which comprises a cooling system is provided. Further, in the vehicle body 2, as shown by the one-dot chain line in FIG. 10, a developed state in which the open car 1C is in a closed state by covering the upper portion and the rear portion of the passenger compartment, and as shown by the broken line in FIG. The vehicle is equipped with a hood portion 60 that selectively takes a folded state in which the open car 1C is in an open state without covering the upper portion and the rear portion of the vehicle compartment portion. A board member 70 is provided at the rear of the seat 3 and the passenger seat 4.

The hood storage portion 8 in which the folded hood portion 60 is stored has a bottom portion formed by a bottom portion forming member 71. Then, below the bottom forming member 71, the power plant of the open car 1C is installed in the engine 1
A secondary radiator 30, which is one of the engine accessories configured together with 7, is arranged. The bottom portion forming member 71 is provided with a traveling wind introduction port 71A which is formed to extend in the vehicle width direction so as to face the sub radiator 30 and whose peripheral portion is formed by a seal member 72 as shown in FIG. Has been. The bottom portion forming member 71 is located in the rear portion of the driver's seat 3 and the passenger seat 4 in the vehicle compartment portion to partition the vehicle compartment portion and the trunk room provided in the rear portion thereof, and faces the traveling air introduction port 71A. It is supported by a vehicle compartment partitioning member 74 having an opening 74A at a portion thereof. The bottom portion forming member 71 and the vehicle compartment partitioning member 74 form a vehicle compartment rear portion forming portion that forms a rear portion of the vehicle compartment portion.

The sub radiator 30 has a left rear fender portion 2L side end portion and a right rear fender portion 2R side end portion attached to the passenger compartment partitioning member 74. Supports the central portion sandwiched between both ends of the sub radiator 30,
A passage forming member 36L provided with a traveling wind exhaust port 39L that faces the outside of the vehicle from the left rear fender portion 2L and a traveling wind exhaust port 39R that faces the outside of the vehicle from the right rear fender portion 2R.
And 36R respectively include a left traveling air passage 38L that accommodates a left side portion of the sub radiator 30 and a right traveling air passage 38 that accommodates a right portion of the sub radiator 30.
R is formed together with the vehicle compartment partitioning member 74.

Therefore, one opening of the passenger compartment partitioning member 74 and the passage forming member 36L serves as the traveling air introduction port 71A provided in the bottom forming member 71, and the other opening is provided in the passage forming member 36L. The left traveling wind passage 38L, which is the traveling wind exhaust port 39L, constitutes a duct member that is formed in the vicinity of the hood storage portion 8. Further, the vehicle compartment partitioning member 74 and the passage forming member 36R have one opening at the bottom. Forming member 71
Is formed in the vicinity of the hood storage section 8 and is configured as a traveling wind introduction port 71A provided on the right side and a second traveling air passage 39R whose other opening is a traveling wind discharge port 39R provided on the passage forming member 36R. It constitutes a duct member. The sub radiator 30 includes a left traveling wind passage 38L extending from the traveling wind introduction port 71A to the traveling wind exhaust port 39L, and a right traveling wind passage 38R extending from the traveling wind introduction port 71A to the traveling wind exhaust port 39R. It is supposed to be located in the upstream part of.

In this way, the driver's seat 3 and the driver's seat 3 are provided on the upper surface of the bottom forming member 71 provided with the traveling wind inlet 71A which is one opening in each of the left traveling wind passage 38L and the right traveling wind passage 38R. Passenger seat 4 and running wind inlet 71
A portion located between A and A, that is, a position related to the air flow path a through which the traveling wind generated when the open car 1C is caused to travel in the open state flows along the traveling wind inlet 71A in the vehicle width direction. A board member 70 that extends to the bottom is arranged. The board member 70, as shown in FIG.
The through hole 75L and 75R provided in the left side portion and the right side portion of the bottom portion forming member 71 respectively face the passenger compartment portion,
It is rotatably supported by cylinder devices 76L and 76R which are opposed to each other with the traveling air introduction port 71A interposed therebetween.

Each of the cylinder devices 76L and 76R is
The telescopic rod 76a has a tip portion swingably connected to the board member 70. The cylinder device 76L is a recess 77L provided on the left side portion of the vehicle compartment partitioning member 74.
Is arranged so as to be swingable, and faces the vehicle compartment through a through hole 75L provided in the bottom forming member 71 so as to face the recess 77L. Similarly, the cylinder device 76R also has a recess 77 provided in the right side portion of the vehicle compartment partitioning member 74.
It is arranged so as to be swingable in R and faces the vehicle compartment through a through hole 75R provided in the bottom forming member 71 so as to face the recess 77R.

In each of the cylinder devices 76L and 76R, the open car 1C is in the closed state,
A state determination switch 1 arranged on a window frame forming portion 9 that forms a front portion forming portion of a vehicle compartment together with a front windshield 5.
When 0 is turned off, the telescopic rod 76a is put into the contracted state. As a result, the board member 70, as shown by the alternate long and short dash line in FIG.
The running wind inlet 71 provided on the bottom forming member 71 is rotated in a direction away from the driver's seat 3 and the passenger's seat 4.
It is placed in the first rotation position where A is closed. In addition, each of the cylinder devices 76L and 76R is an open car 1
When C is opened and the state determination switch 10 is turned on, the telescopic rod 76a is put into the extended state. As a result, as shown by the solid line in FIG. 13, the board member 70 is rotated in the direction approaching the driver's seat 3 and the passenger's seat 4, and the traveling air introduction port 71A provided in the bottom portion forming member 71 is closed. It is placed in the second rotational position where it is in the open state.

As described above, when the open car 1C is placed in the closed state, the board member 70 is moved by the traveling wind introduction port 7.
It is assumed to take a first rotation position that closes 1A. As a result, when the convertible car 1C is allowed to run in the closed state, for example, the sub radiator 3
When 0 is in a state after the operation is completed and the temperature is set to be relatively high, hot air is prevented from rising from the traveling wind introduction port 71A to the vehicle compartment portion.

Further, when the open car 1C is placed in the open state, the board member 70 is set to the second rotational position in which the traveling wind introduction port 71A is opened, whereby the open car 1C is opened. The board member 7 that assumes the second rotation position when the vehicle is driven under the condition
0 flows into the hood storage section 8 through the air flow path a extending from the upper side thereof to cause a relatively large wind pressure to act on the hood storage section 8 and its peripheral portion into the vehicle cabin portion. In addition to preventing entrainment, a traveling wind passage is formed in which the traveling wind flowing through the air flow path a is directed to the traveling wind introduction port 71A. As a result, the traveling wind flowing through the air flow path a passes through the traveling wind inlet 71A in the open state, and the left traveling wind passage 38L and the right traveling wind that accommodate the left side portion and the right side portion of the sub radiator 30, respectively. 38R passage
And is discharged to the outside of the vehicle at a relatively high speed from the traveling wind exhaust port 39L provided in the passage forming member 36L and the traveling wind exhaust port 39R provided in the passage forming member 36R.

Therefore, when the open car 1C is allowed to run under the open condition, the cooling water is circulated between the water jacket provided in the engine 17 through the cooling water circulation pipes 46 and 47. The heat radiation in the sub radiator 30, which cools the engine 17 together with the main radiator 26, is guided by the board member 70 placed in the second rotation position, and the left running wind passage 38L and the right running wind passage are provided. This is performed very effectively by the traveling wind passing through the 38R at a relatively high speed, and the cooling efficiency of the sub radiator 30 is increased without increasing the load of the engine 17. As a result, the output performance of the engine 17 is improved while the deterioration of fuel efficiency is effectively suppressed.

In the open car 1C, the sub radiator 30 is provided, and the sub radiator 30 and the main radiator 26 are used as a radiator that constitutes the cooling system of the engine 17, but instead of the sub radiator 30, , Two auxiliary radiators corresponding to the auxiliary radiators 63L and 63R used in the second example shown in FIGS. 7 and 8 are provided, and these two auxiliary radiators and the main radiator 26 are included in the engine 17. It may be configured as a cooling system.

14 and 15 show a fourth example of the power plant structure of an open car according to the present invention, together with an open car to which it is applied. 14 and 15, parts corresponding to the respective parts and members shown in FIGS. 7 and 8 are denoted by the same reference numerals as those in FIGS. 7 and 8, and redundant description thereof will be given. Is omitted.

In the open car 1D shown in FIG. 14 and FIG. 15, the engine 17 together with the main radiator 26 housed in the engine room 14 provided in the front part of the vehicle body 2 to which the front windshield 5 is assembled. Radiators 63L and 63 constituting the cooling system of
R is provided. In addition, the vehicle body 2 has a developed state as shown by a one-dot chain line in FIG.
4 is equipped with a hood portion 60 that selectively takes a folded state as shown by a broken line in FIG. The hood storage portion 8 in which the hood portion 60 in the state is stored
A bottom portion forming member 80 having a portion that forms the bottom portion is disposed.

The bottom portion forming member 80 is provided with a traveling wind introduction port forming member 81 arranged along the vehicle width direction in a portion close to the driver's seat 3 and the passenger seat 4. The traveling wind introduction port forming member 81 is provided with a plurality of traveling wind introduction ports 81A arranged and formed along the vehicle width direction. Bottom forming member 80 provided with such traveling wind introduction port forming member 81
Is a vehicle compartment partitioning member 86 as shown in FIG. 16, which partitions the vehicle compartment part from the trunk room provided at the rear part.
And the vehicle compartment partitioning member 86, together with the vehicle compartment partitioning member 86, form a vehicle compartment rear portion forming portion that forms the rear portion of the vehicle compartment.

As shown in FIGS. 15 and 16, the vehicle compartment partitioning member 86 forms a common traveling air passage 87A extending in the vehicle width direction along the traveling air introducing port forming member 81, and the traveling air introducing port forming member is formed. 81 a plurality of running wind inlets 81
A passage forming portion 86A in which a portion facing A is an opening
And the left traveling wind passage 87 extending from the left side portion of the common traveling wind passage 87A toward the left rear fender portion 2L.
The L-shaped passage forming portion 86L supported by the vehicle body frame 37L and the right traveling wind passage 87R extending from the right side portion of the common traveling air passage 87A toward the right rear fender portion 2R are formed to form the vehicle body frame 37R. And a passage forming portion 86R supported by. A communication portion 88 between the common traveling air passage 87A and the left traveling air passage 87L
Is opened and closed by an opening / closing member 89 arranged at a connecting portion between the passage forming portion 86A and the passage forming portion 86L. Although illustration is omitted, the common traveling air passage 87 is also provided at the connection portion between the passage forming portion 86A forming the common traveling air passage 87A and the passage forming portion 86R forming the right traveling air passage 87R.
An opening / closing member for opening / closing a communication portion between A and the right traveling air passage 87R is arranged.

Further, in the vehicle compartment partitioning member 86, the traveling wind exhaust port 90L and the right rear fender portion facing the left rear fender portion 2L are provided at both ends of the passage forming portion 86A forming the common traveling wind passage 87A. The traveling wind outlets 90R facing the 2R are provided respectively, and the communication passage 88 between the common traveling air passage 87A and the left traveling air passage 87L is provided at the tip of the passage forming portion 86L forming the left traveling air passage 87L. A traveling wind exhaust port 91L having a diameter larger than that of the left rear fender portion 2L and facing the outside of the vehicle,
Further, the right end of the passage forming portion 86R forming the right traveling wind passage 87R has a diameter larger than the diameter of the communicating portion between the common traveling wind passage 87A and the right traveling wind passage 87R. Running wind exhaust port 9 exposed from the rear fender 2R to the outside of the vehicle
1R is provided. A grill member 92L provided with a plurality of blower openings 92A is provided at the tip of the passage forming portion 86L, and a plurality of blower openings are provided at the tip of the passage forming portion 86R. A grill member 92R is arranged.

Therefore, the vehicle compartment partitioning member 86 has a plurality of traveling air introduction ports 81A provided in the traveling air introduction port forming member 81.
Is formed as one opening, and the traveling air outlets 90L and 90R provided in the passage forming portion 86A are respectively formed in the other opening. A left traveling wind passage 87L having substantially one opening and a traveling wind outlet 91L provided in the passage forming portion 86L being the other opening,
The communicating portion with the common traveling air passage 87A has substantially one opening, and the traveling air outlet 91R provided in the passage forming portion 86R has the right traveling air passage 87R having the other opening. The relatively large duct member is formed near the hood storage section 8.

Then, in the vicinity of the grill member 92L in the downstream portion of the left traveling wind passage 87L, the sub radiator 6 is provided.
3L is arranged in a state of being supported by the passage forming portion 86L, and the auxiliary radiator 63R is provided in the vicinity of the grill member 92R in the downstream side portion of the right traveling wind passage 87R.
Are supported by the passage forming portion 86R. Each of the sub radiators 63L and 63R is one of engine accessories that form the power plant of the open car 1D together with the engine 17.

Common traveling air passage 87A and left traveling air passage 8
The opening / closing member 89 that opens / closes the communication portion 88 with the 7L is operation-controlled by an actuator 93, although not shown. In the opening / closing member 89, when the open car 1D is closed, and the state determination switch 10 arranged in the window frame forming portion 9 forming the vehicle interior front portion forming portion together with the front windshield 5 is turned off, As shown by the alternate long and short dash line in FIG. 16, the common traveling air passage 87A and the left traveling air passage 87L are placed at the first position where the communication portion 88 is closed, and the common traveling air passage 87A and the left traveling air passage 87L are connected to each other. The traveling air passage 87L is shut off. In addition, the open car 1D is set to the open state, and the state determination switch 1
When 0 is turned on, as shown by the solid line in FIG. 16, the communication portion 88 between the common traveling air passage 87A and the left traveling air passage 87L is placed in the second position where the communication portion 88 is in the open state. The common traveling air passage 87A and the left traveling air passage 87L are communicated with each other.

Similarly, the operation of the opening / closing member for opening and closing the communicating portion between the common traveling air passage 87A and the right traveling air passage 87R is also controlled by an actuator (not shown) so that the open car 1D is closed. , The common traveling air passage 87A and the right traveling air passage 87R are closed, and the common traveling air passage 87A and the right traveling air passage 87R are cut off at a first position, and , When the open car 1D is placed in the closed state, the communication part between the common traveling air passage 87A and the right traveling air passage 87R is opened, and the common traveling air passage 87A and the right traveling air passage 87R are opened. Is placed in a second position in which the

By doing so, the open car 1D is placed in the closed state, and the common traveling air passage 8
When 7A is blocked from the left and right traveling air passages 87L and 87R, respectively, when the left and right doors 94L and 94R arranged in the vehicle body 2 are changed from the open state to the closed state, a plurality of traveling air inlets Through the common traveling air passage 87A in which 81A is one opening and each of the traveling air outlets 90L and 90R is the other opening, the pressure for the vehicle interior pressure is released. As a result, the left and right doors 94L
And the transition of the 94R from the open state to the closed state is smoothly performed.

When the open car 1D is in an open state and the common traveling air passage 87A is in communication with the left and right traveling air passages 87L and 87R, respectively, when the open car 1D travels, The traveling wind that flows through the air flow path a extending from above to the hood storage portion 8 is introduced into the vehicle compartment partitioning member 86 from the plurality of traveling air inlets 81A at a relatively high speed, and the vehicle compartment partitioning member 86 is From the common running air passage 87A to be formed, the sub radiator 63
L and 63R are exhausted to the outside of the vehicle through the left traveling wind passage 87L and the right traveling wind passage 87R, respectively.

Therefore, when the open car 1D is allowed to run in the open state, the left running wind passage 8
7L and the right traveling wind passage 87R are respectively disposed, and the heat radiation of the sub radiators 63L and 63R for cooling the engine 17 together with the main radiator 26 is relatively large in the left traveling wind passage 87L and the right traveling wind passage 87R. Effectively performed by the traveling wind passing at a speed, the sub radiator 6
The cooling performance of 3L and 63R is enhanced without increasing the load on the engine 17. As a result, the output performance of the engine 17 is improved while the deterioration of fuel efficiency is effectively suppressed.

In the above open car 1D, the sub radiators 63L and 63R are provided in the left and right traveling wind passages 87L and 87R formed by the passenger compartment partitioning member 86, respectively.
Are arranged, but these sub radiators 63L and 63
Instead of R, a sub radiator corresponding to the sub radiator 30 used in the first example shown in FIGS. 1 and 2 is
It may be arranged in the common traveling air passage 87A formed by the vehicle compartment partitioning member 86. Further, in the above-described open car 1D, the hood portion 60 is mounted on the vehicle body 2 of the vehicle. When the hood part corresponding to part 7 is equipped and can be run in the open state,
The traveling wind that flows through the airflow path a may be effectively guided to the plurality of traveling air inlets 81A by the folded-up hood portion.

17 and 18 show a fifth example of a power plant structure of an open car according to the present invention, together with an open car to which it is applied. In FIGS. 17 and 18, the parts corresponding to the respective parts and members shown in FIGS. 14 and 15 are denoted by the same reference numerals as those in FIGS. 14 and 15, and duplicate description thereof will be omitted. Omitted.

In the open car 1E shown in FIG. 17 and FIG. 18, the front windshield 5 is assembled and the vehicle body main body 102 provided with the engine room 100 at the rear is as shown by the one-dot chain line in FIG. The deployed state in which the open car 1E is closed by covering the upper and rear parts of the passenger compartment, and the open car 1E is open without covering the upper and rear parts of the passenger compartment as shown by the solid line in FIG. It is equipped with a hood portion 60 that selectively takes a folded state of the hood. Further, at the rear of the driver's seat 3 and the passenger seat 4 in the vehicle interior portion of the vehicle body 102, there is a portion that forms the bottom of the hood storage portion 8 in which the folded hood portion 60 is stored. , A vehicle compartment rear portion forming portion that forms a rear portion of the vehicle compartment portion by partitioning the vehicle compartment portion and an engine room 100 provided at the rear portion thereof, and the engine together with the left and right rear fender portions 102L and 102R A vehicle compartment partitioning member 103 that constitutes an engine room forming portion that forms the room 100 is arranged. In a portion of the vehicle compartment partitioning member 103 forming a bottom portion of the hood storage portion 8 near the driver's seat 3 and the passenger seat 4,
A plurality of running wind inlets 8 arranged in the vehicle width direction
A traveling wind introduction port forming member 81 provided with 1A is arranged.

In the engine room 100, the engine 1
05, which constitutes the intake system of the engine 105
At the same time, an air cleaner 106, which is one of engine accessories forming the power plant of the open car 1E, is housed. The engine 105 includes an intake passage forming member 10
4 and the exhaust passage forming member 107 are connected, the air cleaner 106 is connected to the engine 105 via the intake passage forming member 104, and the downstream end of the outside air introducing passage forming member 109 is connected. . At the upstream end of the outside air introducing passage forming member 109, an outside air introducing port 108 communicating with the outside of the vehicle is provided in the left rear fender portion 102L forming a part of the engine room forming portion. Then, when the open car 1E is placed in a running state, the outside air introduction passage forming member 10 is passed through the outside air introduction port 108.
The outside air introduced into the engine 9 is supplied as intake air to the engine 105 through the air cleaner 106. Further, the engine room 100 communicates with the outside of the vehicle through a plurality of ventilation openings provided in a ventilation opening forming member 114 arranged at the rear of the engine room forming portion.

The vehicle compartment partitioning member 103 has openings that extend in the vehicle width direction along the traveling wind introduction port forming member 81 and that face the plurality of traveling wind introduction ports 81A provided in the traveling wind introduction port forming member 81. The formed passage forming portion 110 is provided, and the passage forming portion 110 and the outside air introduction passage forming member 10 are provided.
Connection passage forming portion 1 for connecting the downstream side portion of 9
11 is provided. Therefore, the passage forming portion 110 and the connecting passage forming portion 111 in the vehicle compartment partitioning member 103
In the vicinity of the hood storage section 8, the air cleaner 1 passes the traveling wind through the traveling air introduction ports 81A provided in the traveling air introduction port forming member 81 from the outside air introduction passage forming member 109.
This constitutes a duct member forming the traveling air passage 112 leading to the inside of 06.

An opening / closing member 113 for opening / closing the traveling air passage 112 is arranged inside the connection passage forming portion 111 of the vehicle compartment partitioning member 103. The opening / closing member 113 is opened by the actuator (not shown).
When E is in the closed state and the state determination switch 10 disposed in the window frame forming portion 9 forming the vehicle interior front portion forming portion together with the front windshield 5 is in the off state, the traveling air passage 112 is closed. The eggplant is placed at a position as indicated by the one-dot chain line in FIG.
When the open car 1E is opened and the state determination switch 10 is turned on, the traveling wind passage 1
12 is in the open position, as shown by the solid line in FIG.

By doing so, when the open car 1E travels in the closed state, the traveling wind introduced into the outside air introduction passage forming member 109 through the outside air introduction port 108 is the traveling wind introduction port 81A. It is supplied into the air cleaner 106 without being discharged to the outside of the engine room 100 through the. When the open car 1E travels in an open state, traveling wind is supplied into the air cleaner 106 through the outside air inlet 108, and the hood storage 8 is provided with an air flow path a extending from above. The traveling wind that flows and causes a relatively large wind pressure to act on the hood storage portion 8 and its peripheral portion is introduced into the air cleaner 106 through the plurality of traveling air inlets 81A at a relatively high speed. Therefore, the engine 10
5, the intake charging efficiency is increased, and as a result, the output performance of the engine 105 is improved while the deterioration of fuel efficiency is effectively suppressed.

In the open car 1E described above, the hood portion 60 is mounted on the vehicle body 102, but instead of the hood portion 60, the hood portion 60 is mounted on the first example shown in FIGS. The hood part corresponding to the hood part 7 is installed,
When traveling in the open state, the hood portion in the folded state may effectively guide the traveling wind forming the airflow path a to the plurality of traveling air inlets 81A. .

20 and 21 show a sixth example of a power plant structure for an open car according to the present invention, together with an open car to which it is applied. 20 and 21, components corresponding to the respective parts and members shown in FIGS. 17 and 18 are denoted by the same reference numerals as those in FIGS. 17 and 18, and duplicate description thereof will be omitted. Omitted.

In the open car 1F shown in FIGS. 20 and 21, the front windshield 5 is assembled, and the vehicle body main body 102 provided with the engine room 100 at the rear portion is as shown by the one-dot chain line in FIG. The hood portion 115 is selectively provided in the unfolded state and the folded state as indicated by the solid line in FIG. Like the hood portion 60 shown in FIGS. 7 and 8, when the hood portion 115 is in the deployed state, the hood portion 115 covers the upper portion and the rear portion of the vehicle interior portion to form the open car 1F in the closed state, and When the vehicle is folded, the driver's seat 3 and the passenger's seat 4 in the passenger compartment without covering the upper portion and the rear portion of the passenger compartment.
The open car 1F is placed in an open state by being stored in the hood storage portion 8 provided at a position to be a rear portion.

Further, in the body 102, a board member 116 extending in the vehicle width direction is provided at the rear of the driver's seat 3 and the passenger seat 4 installed in the passenger compartment, and the hood portion 115 in a folded state is provided. A vehicle compartment partitioning member 117 that has a portion that forms the bottom of the hood storage portion 8 in which is stored and that partitions the vehicle compartment portion and the engine room 100 provided at the rear portion thereof is arranged. The vehicle compartment partitioning member 117 constitutes a vehicle interior rear portion forming portion which forms a rear portion of the vehicle interior portion, and also constitutes an engine room forming portion which forms the engine room 100 together with the left and right rear fender portions 102R and 102L. ing.

The vehicle compartment partitioning member 117 is provided with a passage forming portion 118 extending in the vehicle width direction. The passage forming portion 118 is provided in a portion of the vehicle compartment partitioning member 117 that is a bottom portion of the hood storage portion 8 in the vicinity of the driver's seat 3 and the passenger seat 4, and has a plurality of travels arranged in the vehicle width direction. It has a wind inlet 118A. In addition, the vehicle compartment partitioning member 1
A connection passage forming portion 120 that connects the passage forming portion 118 to the downstream side portion of the outside air introduction passage forming member 109 extending from the air cleaner 106 is provided at 17. Therefore, the passage forming portion 118 and the connecting passage forming portion 120 provided in the vehicle compartment partitioning member 117 are not included in the hood storage portion 8.
In the vicinity of the above, a duct member that forms a traveling wind passage 121 that guides the traveling wind through the plurality of traveling air introduction ports 118A from the outside air introduction passage forming member 109 into the air cleaner 106 is configured.

A support member 123 for rotatably supporting the board member 116 extending in the vehicle width direction is attached to the vehicle compartment partitioning member 117. The support member 123 is attached to an upper portion of a portion of the vehicle compartment partitioning member 117 that faces the driver's seat 3 and the passenger seat 4. Board member 11
6 is as indicated by the alternate long and short dash line in FIG.
A first rotation position that closes the plurality of traveling air introduction ports 118A and a second rotation position that is projected upward from the vehicle body body 102 as shown by the solid line in FIG. 21 are selected. It is supposed to be taken as a target. And
A coil spring 125 is arranged between the board member 116 and the support member 123 to bias the board member 116 toward the second rotation position.

On the other hand, the hood portion 115 supports the hood cloth 126 and the left and right rear fender portions 102L supporting the hood cloth 126.
And 102R, respectively, and a frame structure including a left main frame member (not shown) and a right main frame member 127R. The right main frame member 127R in the frame structure is rotatably attached to the right rear fender portion 102R via a bracket 128, and a guide roller 129 is arranged at a rear portion of the vehicle body in the bracket 128. A pulley 130 is arranged on a portion of the bracket 128 on the front side of the vehicle body.

The guide roller 129 and the pulley 130 have:
A wire 131 having one end attached to the board member 128 and the other end attached to the right main frame member 127R is wound. The board member rotating means provided on the right main frame member 127R is configured to include the pulley 130 and the wire 131. Similarly,
The left main frame member is also rotatably attached to the left rear fender portion 102L via a bracket,
Board member rotating means corresponding to the board member rotating means provided on the right main frame member 127R is provided.

Left main frame member and right main frame member 127R
When the hood portion 115 in the folded state is rotated in the direction in which the hood portion 115 is in the expanded state, the wire 1 constituting the board member rotating means provided on the right main frame member 127R is provided.
While moving 31 in the pulling direction, the left main skeleton member moves in the pulling direction the wire constituting the board member rotating means provided on the left main frame member, whereby the board member 116 resists the biasing force of the coil spring 125. It can be rotated in the direction of. Therefore, when the hood portion 115 is in the unfolded state, the board member 116 has a plurality of traveling air inlets 118, as shown by the chain line in FIG.
It is placed in the first rotation position where A is closed.

Further, the left main frame member and the right main frame member 1
27R and the main frame member 127R on the right side when the hood portion 115 in the unfolded state is rotated in the direction of forming the folded state.
Moves the wire 131 constituting the board member rotating means provided therein in the loosening direction, and the left main frame member moves the wire constituting the board member rotating means provided therein in the loosening direction. As a result, the board member 116 is rotated in the direction according to the biasing force of the coil spring 125. Therefore, when the hood portion 115 is placed in the folded state, as shown by the solid line in FIG. 21, the board member 116 is made to project upward from the vehicle body 102, and a plurality of traveling wind introduction ports 118A are provided.
Is placed in a second rotation position in which is opened.

As described above, when the open car 1F is in the closed state, the board member 116 is set to the first rotating position in which the plurality of traveling wind introduction ports 118A are closed. When 1F travels in the closed state, the outside air introduction passage forming member 109 is formed from the left rear fender portion 102L forming a part of the engine room forming portion through the outside air introduction port 108 exposed to the outside of the vehicle.
The traveling wind introduced into the inside is a plurality of traveling wind inlets 118A.
It is supplied into the air cleaner 106 without being discharged to the outside of the engine room 100 through the. Further, when the open car 1F is in the open state, the board member 116 is set to the second rotation position in which the plurality of traveling wind introduction ports 118A are in the open state, so that the open car 1F is in the open state. When traveling under the second
The board member 116 in the rotating position moves to the hood storage unit 8 through the air flow path a extending from above and applies a relatively large wind pressure to the hood storage unit 8 and its peripheral portion. It is possible to prevent the air from being entrained inside and to form a traveling wind passage that directs the traveling wind flowing through the air flow path a toward the plurality of traveling air introduction ports 118A. Thereby, the traveling wind through the outside air introduction port 108 and the traveling wind through the plurality of traveling wind introduction ports 118A are supplied to the air cleaner 106, and the intake charging efficiency of the engine 105 is enhanced. As a result, the output performance of the engine 105 is improved while the deterioration of fuel efficiency is effectively suppressed.

22 and 23 show a seventh example of a power plant structure for an open car according to the present invention, together with an open car to which the seventh example is applied. Also in FIGS. 22 and 23, the parts corresponding to the respective parts and members shown in FIGS. 17 and 18 are shown with the same reference numerals as those in FIGS. 17 and 18, and duplicate description thereof will be omitted. Omitted.

In the open car 1G shown in FIGS. 22 and 23, the front windshield 5 is assembled and the vehicle body main body 102 provided with the engine room 100 at the rear portion is as shown by the one-dot chain line in FIG. , A deployed state in which the open car 1G is in a closed state by covering the upper and rear portions of the passenger compartment, and the open car 1G is in an open state without covering the upper and rear portions of the passenger compartment as shown by the solid line in FIG. It is equipped with a hood portion 60 that selectively takes a folded state of the hood. Further, at the rear of the driver's seat 3 and the passenger seat 4 in the vehicle interior portion of the vehicle body 102, there is a portion that forms the bottom of the hood storage portion 8 in which the folded hood portion 60 is stored. , A vehicle compartment rear portion forming portion that forms a rear portion of the vehicle compartment portion by partitioning the vehicle compartment portion and an engine room 100 provided at the rear portion thereof, and the engine together with the left and right rear fender portions 102L and 102R A vehicle compartment partitioning member 135 that forms an engine room forming portion that forms the room 100 is arranged.

The vehicle compartment partitioning member 135 is provided with a passage forming portion 136 extending in the vehicle width direction. The passage forming portion 136 is provided in a portion of the vehicle compartment partitioning member 135 that forms the bottom portion of the hood storage portion 8 in the vicinity of the driver's seat 3 and the passenger seat 4, and has a plurality of running arrangements formed along the vehicle width direction. It has a wind introduction port 136A. In addition, the vehicle compartment partitioning member 1
35 is provided with a connecting passage forming portion 138 that connects the passage forming portion 136 to a portion of the air cleaner 106 that faces the hood storage portion 8. Therefore, the passage forming portion 136 and the connecting passage forming portion 138 provided in the vehicle compartment partitioning member 135 generate the traveling wind through the plurality of traveling air inlets 136A in the engine room 100 in the vicinity of the hood storage portion 8.
This constitutes a duct member that forms a traveling wind passage 140 that leads to the inside of the air cleaner 106 that is arranged in a position close to the hood storage portion 8.

Below the portion of the air cleaner 106 to which the connecting passage forming portion 138 is connected, from the outside air introduction port 108 leading to the outside of the vehicle in the left rear fender 102L forming a part of the engine room forming portion forming the engine room 100. An outside air introduction passage forming member 109 that guides the outside air into the air cleaner 106 is connected.

An opening / closing member 141 for opening / closing the traveling air passage 140 is arranged inside the connection passage forming portion 138 of the vehicle compartment partitioning member 135. The opening / closing member 141 is opened by the actuator (not shown).
When G is closed, the window frame forming portion 9 that forms the vehicle front portion forming portion together with the front windshield 5
When the state determination switch 10 arranged in FIG. 24 is turned off, the traveling wind passage 140 is closed, and the open windshield 1G is opened as shown by the alternate long and short dash line in FIG. Then, when the state determination switch 10 is turned on, the traveling air passage 140 is placed in the open state as shown by the solid line in FIG.

By doing so, when the open car 1G travels in the closed state, the traveling wind introduced into the outside air introduction passage forming member 109 through the outside air introduction port 108 is changed to the traveling wind introduction port 136A. Without being discharged to the outside of the engine room 100 through
It is supplied into the air cleaner 106. Further, when the open car 1G travels in the open state, the traveling wind is supplied to the inside of the air cleaner 106 through the outside air introduction port 108, and the air flows in the hood storage section 8 from the upper side thereof. The traveling wind, which causes a relatively large wind pressure to act on the hood storage portion 8 and its peripheral portion,
The air is supplied directly into the air cleaner 106 at a relatively high speed through the plurality of traveling air inlets 136A. Therefore, the intake charging efficiency of the engine 105 is effectively increased, and as a result, the output performance of the engine 105 is improved while the deterioration of fuel efficiency is effectively suppressed.

In the open car 1G described above, the hood portion 60 is mounted on the vehicle body 102, but instead of the hood portion 60, the hood portion 60 is mounted on the first example shown in FIGS. The hood part corresponding to the hood part 7 is installed,
When the vehicle is made to travel in the open state, the hood portion in the folded state may efficiently guide the traveling wind flowing through the air flow path a to the plurality of traveling wind inlets 136A.

25 and 26 show an eighth example of a power plant structure for an open car according to the present invention, together with an open car to which it is applied. 25 and 26, components corresponding to the respective parts and members shown in FIGS. 17 and 18 are denoted by the same reference numerals as those in FIGS. 17 and 18, and duplicate description thereof will be omitted. Omitted.

In the open car 1H shown in FIGS. 25 and 26, the front windshield 5 is assembled and the vehicle body main body 102 provided with the engine room 100 at the rear portion is as shown by the alternate long and short dash line in FIG. 2 is a deployed state in which the open car 1H is in a closed state by covering the upper and rear portions of the passenger compartment, and FIG.
As shown by the solid line in FIG. 6, there is provided a hood portion 60 for opening the open car 1H without covering the upper portion and the rear portion of the vehicle compartment. Also, the body 1
At the rear of the driver's seat 3 and the passenger seat 4 in the passenger compartment of No. 02, a hood storage unit 8 is provided in which a folded hood unit 60 is stored.
And forming a bottom portion of the passenger compartment, and further defining a passenger compartment rear portion forming portion that forms a rear portion of the passenger compartment portion by partitioning the passenger compartment portion and an engine compartment 100 provided at the rear portion thereof, and And right rear fender section 102L and 1
The vehicle compartment partitioning member 14 that constitutes an engine room forming portion that forms the engine room 100 with 02R
Five are arranged.

At a portion of the vehicle compartment partitioning member 145 that forms the bottom of the hood storage section 8 near the driver's seat 3 and the passenger seat 4, a traveling wind that forms a part of the engine room forming portion together with the vehicle compartment partitioning member 145. The introduction port forming member 146 is arranged so as to extend in the vehicle width direction. The traveling wind introducing port 147L is provided at the left side portion and the right side portion of the traveling wind introducing port forming member 146.
And 147R are provided respectively. Further, as shown in FIG. 26, the left side portion of the traveling wind introduction port forming member 146 where the traveling wind introduction port 147L is provided and the right side portion where the traveling wind introduction port 147R is provided, respectively, as shown in FIG.
A passage forming portion 150 having a traveling wind introduction port 147L facing the hood storage 8 as an upper opening and a traveling wind discharge port 148L facing the engine room 100 as a lower opening.
A passage forming portion 150R is provided in which L and the traveling wind introduction port 147R facing the hood storage portion 8 are openings on the upper side, and the traveling wind discharge port 148R facing the engine room 100 is an opening on the lower side. .

The portions of the traveling-air introducing port forming member 146 forming the traveling-air introducing ports 147L and 147R each have a curved end surface and project toward the engine room 100. As a result, when the open car 1H travels in the open state, the traveling wind acting on the traveling wind introduction port forming member 146 passes through the traveling wind introduction ports 147L and 147R, respectively, to form the passage forming portions 150L and 15L.
It is efficiently introduced into 0R.

An engine 105 housed in the engine room 100, and an air cleaner 151 which is attached to the engine 105 to form an intake system for the engine 105 and which is one of engine accessories forming the power plant of the open car 1H together with the engine 105. Is located below the hood storage room 8. The air cleaner 151 is connected to the engine 105 via the intake passage forming member 104, and
The left rear fender portion 102L forming a part of the engine room forming portion is connected to an outside air introduction passage forming member 109 having an outside air introduction port 108 communicating with the outside of the vehicle.

Each of the passage forming portions 150L and 150R provided in the traveling wind introduction port forming member 146 has a traveling wind passage 15 extending from the hood storage portion 8 into the engine room 100.
3 constitutes a duct member. An opening / closing member 154 for opening / closing the traveling air passage 153 formed by each of the passage forming portions 150L and 150R is arranged. The open / close member 154 is placed in the window frame forming part 9 forming the front part of the passenger compartment together with the front windshield 5 when the open car 1H is closed by an actuator (not shown). Is turned off, the traveling wind passage 153 is closed, and the open winder 1H is placed in the open position as shown by the alternate long and short dash line in FIG. When turned on, the traveling wind passage 153 is placed in the open state as shown by the solid line in FIG.

Therefore, when the open car 1H travels in the closed state, the traveling wind passage 153 formed by each of the passage forming portions 150L and 159R is closed by the opening / closing member 154, thereby introducing the traveling wind. Engine room 10 through mouths 147L and 147R
Hot air rise from 0 is prevented. Further, when the open car 1H travels in the open state, the traveling wind passage 153 formed by each of the passage forming portions 150L and 150R is opened by the opening / closing member 154, and in addition, the traveling wind passage 153 is set in the folded state. The covered hood portion 60 runs in the hood storage portion 8 along the air flow path a extending from above and travels a traveling wind that causes a relatively large wind pressure to act on the hood storage portion 8 and its peripheral portion. Wind inlets 147L and 147R
To form a traveling wind passage that is efficiently guided to the. Therefore, the traveling wind flowing through the air flow path a is efficiently introduced into the engine room 100 through the traveling wind introduction ports 147L and 147R at a relatively high speed, and the plurality of ventilation ports provided in the ventilation port forming member 114 are provided. Is discharged from the vehicle to the outside of the vehicle and the inside of the engine room 100 is effectively cooled. As a result, heat is efficiently dissipated from the heating element including the engine 105 housed in the engine room 100, and as a result, the output performance of the engine 105 is improved while the deterioration of fuel efficiency is effectively suppressed. Will be punished.

In the above open car 1H, the hood portion 60 is mounted on the vehicle body 102, and the traveling wind passage 153 formed by the passage forming portions 150L and 150R is opened and closed by the opening / closing member 154. However, instead of the hood portion 60, the hood portion 7 provided in the first example shown in FIGS. 1 and 2 is used.
May be equipped with a hood portion corresponding to the open / close member 1
Instead of 54, a board member corresponding to the board member 70 used in the third example shown in FIGS. 10 and 11 may be provided.

When a convertible top portion corresponding to the convertible top portion 7 is installed in the open car 1H instead of the convertible top portion 60, when the convertible open car 1H travels in the open state, it is in a folded state. By the hood portion thus formed, the traveling wind flowing through the airflow path a is guided more effectively to the traveling wind introduction ports 147L and 147R provided in the traveling wind introduction port forming member 146.

Further, when the open car 1H is equipped with a board member corresponding to the board member 70 instead of the opening / closing member 154, each of the running wind introducing ports 147L and 147R of the running wind introducing port forming member 146 is formed. The part to be made has a flat end face. Then, when the open car 1H is in the closed state, the board member is in a rotational position where the running air inlets 147L and 147R are in the closed state, whereby when the open car 1H travels in the closed state. The rise of heat from the engine room 100 is prevented. In addition, open car 1H
Is in an open state, the board member is in a rotational position in which the traveling air inlets 147L and 147R are in an open state,
As a result, when the open car 1H travels in the open state, the board member prevents the traveling wind flowing through the air flow path a from being entrained in the vehicle interior portion, and the air flow path a The running wind that flows is the running wind inlet 14
It will be efficiently guided to 7L and 147R.

Further, the passage forming portion 150 provided in the traveling wind introducing port forming member 146 in the open car 1H.
L and 150R have a shape that extends in the vertical direction of the vehicle body, but the passage forming portion 150L is such that the lower side portion provided with the traveling air outlet 148L extends toward the vehicle rear side. In addition to having a bent shape, the passage forming portion 150R has a bent shape in which a lower portion where the traveling wind outlet 148R is provided extends toward the rear side of the vehicle body. Good. In such a case, when the open car 1H travels in an open state, the ventilation port provided in the ventilation port forming member 114 for the traveling wind introduced into the engine room 100 from the traveling wind exhaust ports 148L and 148R. Is more efficiently exhausted to the outside of the vehicle, and the cooling effect by the running wind in the engine room 100 is enhanced.

FIG. 28 shows a ninth example of the power plant structure of the open car according to the present invention. The ninth example shown in FIG. 28 is supposed to include, for example, the engine mounted on the convertible shown in FIGS. 1 and 2. In FIG. 28, the same members and portions as those shown in FIGS. 1 and 2 are indicated by the same reference numerals as those in FIGS. 1 and 2, and the 28th example It is supposed to be used for explanation.

In FIG. 28, the combustion chamber 162 is provided above the cylinder 161 formed inside the engine 17 and in which the piston 160 is arranged.
Is connected to the intake passage 166 via an intake valve 165 that opens and closes the intake port 163, and
4 is connected to an exhaust passage 169 via an exhaust valve 167 that opens and closes. In the intake passage 166, the air cleaner 170, the compressor 171A of the turbocharger 171, the intercooler 172 for cooling the intake air pressurized by the compressor 171A, the pressure sensor 173, and the accelerator pedal are sequentially operated from the upstream side. Throttle valve 174, surge tank 176, which can be opened and closed by
Also, a fuel injection valve 177 is provided. A supercharging pressure adjusting unit 178 is provided in the exhaust passage 169, and the turbocharger 17 is provided downstream of the supercharging pressure adjusting unit 178.
The turbine 171B in No. 1 is arranged. The waste gate mechanism provided in the turbocharger 171 is not shown. Furthermore, engine 1
A valve drive mechanism 180 for driving the intake valve 165 and the exhaust valve 167 is arranged in the cylinder head forming the valve 7.

Intake passage 166 through air cleaner 170
The intake air introduced into the combustion chamber 162 is supplied to the combustion chamber 162 through the intake port 163 which is opened by the intake valve 165, is pressure-fed from the fuel supply system to the fuel injection valve 177, and is directed from the fuel injection valve 177 to the intake port 163. The fuel injected and supplied to form a mixture for combustion in the combustion chamber 162. Then, the exhaust gas generated by the combustion of the air-fuel mixture is discharged from the combustion chamber 162 to the exhaust passage 169 through the exhaust port 164 opened by the exhaust valve 167. In this way, the exhaust passage 169
The exhaust gas discharged to the turbocharger acts on the turbine 171B of the turbocharger 171 through the supercharging pressure adjusting unit 178 so as to rotate the turbine 171B.
In 71, the compressor 171A that rotates with the rotation of the turbine 171B is placed in an operating state in which the intake air introduced from the air cleaner 170 into the intake passage 166 is pressurized.

The intake valve 165, the exhaust valve 167, the turbocharger 171 and the fuel injection valve 177 described above are used for the engine 1
7, a power plant installed in the open car 1A is configured, and in such a power plant, supercharging pressure control for the turbocharger 171, fuel injection amount control for the fuel injection valve 177, and intake valve 165 are performed. Engine torque control and the like by opening / closing timing control is performed when the hood portion 7 equipped with the open car 1A is in a closed state in which the hood portion 7 is expanded to cover the upper and rear portions of the vehicle compartment, and when the hood portion 7 is in the vehicle compartment. A control unit 190 is provided, which operates in a manner different from that in the open state in which the upper portion and the rear portion of the portion are not covered and is folded.

The control unit 190 includes a pressure sensor 17
3, the intercooler 17 of the intake passage 166 obtained from
2 and the throttle valve 174, a detection output signal SP indicating the supercharging pressure, a detection output signal SN indicating the engine speed obtained from a rotation speed sensor 191 detecting the rotation speed of the engine 17, and other In addition to the detection output signal group SX representing the operating state of the engine 17, two state determination switches 1 arranged in the window frame forming section 9
A high-level or low-level detection output signal SH obtained from 0 is supplied. Each of the state determination switches 10
When it takes an on state (open state), it outputs a high level detection output signal SH, and when it takes an off state (closed state), it sends a low level detection output signal SH.

Further, in the built-in memory of the control unit 190, for example, the engine speed EN is plotted on the horizontal axis and the supercharging pressure TP is plotted on the vertical axis. The fuel supply characteristic shown in the characteristic diagram of FIG. 30 in which the pressure characteristic, the horizontal axis represents the engine speed EN, and the vertical axis represents the fuel supply amount QF to the intake port, and the horizontal axis represents the engine speed. The torque characteristic shown in the characteristic diagram of FIG. 31, in which EN is taken and the engine torque ET is taken on the vertical axis, is stored as a data map.

In the supercharging pressure characteristic shown in the characteristic diagram of FIG. 29 which is data-mapped and stored in the built-in memory of the control unit 190, the supercharging pressure TP of each of the characteristic lines AA and AB is shown. The change is set to be within a preset allowable boost pressure range. The change in the supercharging pressure TP represented by the characteristic line AA increases linearly until the engine speed EN reaches approximately 5,000 rpm, and when the engine speed EN becomes 5,000 rpm or more, the value Pa is substantially exceeded. Is maintained, and also
The change of the supercharging pressure TP represented by the characteristic line AB is
Until the engine speed EN reaches approximately 6,000 rpm, it linearly increases to a region exceeding the value Pa, and when the engine speed EN becomes 6,000 rpm or more, the value P is substantially increased.
It is supposed to maintain the value Pb larger than a.

Further, in the fuel supply characteristic shown in the characteristic diagram of FIG. 30 which is data-mapped and stored in the built-in memory of the control unit 190, characteristic lines BA and BB
The change in the fuel supply amount QF represented by each of the above is set. The change in the fuel supply amount QF represented by the characteristic line BA is such that the engine speed EN is approximately 5,000 rp.
The value Qa is substantially maintained until m is reached, and when the engine speed EN becomes approximately 5,000 rpm or more, substantially,
It is assumed that the value Qa decreases to a value Qb smaller than that, and then the value Qb is maintained, and the change in the fuel supply amount QF represented by the characteristic line BB changes the engine speed EN to about 6,000 rpm. Until the value is reached Q
When a is maintained and the engine speed EN becomes approximately 6,000 rpm or more, the value Qa substantially decreases to a value Qc which is smaller than the value Qb but larger than the value Qb, and then the value Qc.
It is supposed to maintain.

Further, in the torque characteristic shown in the characteristic diagram of FIG. 31 which is data-mapped and stored in the built-in memory of the control unit 190, the characteristic lines CA and CB
The change of the engine torque ET represented by each of the above is set. The change in the engine torque ET represented by the characteristic line CA is obtained when the closing timing of the intake valve 165 is set to the timing Tia, and takes the maximum value Ea when the engine speed EN is approximately 5,000 rpm. Further, the change of the engine torque ET represented by the characteristic line CB is obtained when the closing timing of the intake valve is set to the timing Tib which is later than the timing Tia, and the engine speed EN is about 6,000 rpm. The maximum value Ea is taken when

In the supercharging pressure control performed by the control unit 190, the open car 1A is set to the closed state, whereby the state determination switch 10 is set.
Is supplied with the low-level detection output signal SH from the detection output signal SN obtained from the rotation speed sensor 191.
The engine speed represented by the engine output speed represented by the detection output signal SN when the open car 1A is in the closed state by being compared with the characteristic line AA in the supercharging pressure characteristic shown in the characteristic diagram of FIG. A boost pressure corresponding to is required. Further, the open car 1A is assumed to be in an open state, whereby the state determination switch 1
When the high level detection output signal SH is supplied from 0, the detection output signal SN obtained from the rotation speed sensor 191 is obtained.
The engine speed represented by the above is collated with the characteristic line AB in the supercharging pressure characteristic shown by the characteristic diagram of FIG. 29, and the engine speed represented by the detection output signal SN is shown when the open car 1A is in the open state. A corresponding boost pressure is required.

Then, the difference between the calculated supercharging pressure and the supercharging pressure represented by the detection output signal SP is calculated, and the control signal C1 corresponding to the calculated difference is sent from the control unit 190 to the supercharging pressure adjusting unit. 178. As a result, the flow rate of the exhaust gas acting on the turbine 171B of the turbocharger 171 is controlled by the control signal C1 through the supercharging pressure adjusting unit 178.
The supercharging pressure in the portion of the intake passage 166 between the intercooler 172 and the throttle valve 174, which is detected by the pressure sensor 173 as a result, is not adjusted under the condition that the open car 1A is in the closed state. , Fig. 2
Characteristic line A in the supercharging pressure characteristic shown by the characteristic diagram of No. 9
In addition, when the open car 1A is in the open state, it follows the characteristic line AB in the supercharging pressure characteristic shown by the characteristic diagram of FIG. 29.

As described above, when the open car 1A is in the closed state, the supercharging pressure control according to the characteristic line AA in the supercharging pressure characteristic shown in the characteristic diagram of FIG. 29 is performed, and the open car 1A is opened. When the state is taken, the supercharging pressure control according to the characteristic line AB in the supercharging pressure characteristic shown by the characteristic diagram of FIG. 29 is performed,
When the open car 1A is in the open state, the supercharging in the intake passage 166 is performed over the entire engine speed range, particularly in the engine speed range where the engine speed is 5,000 rpm or more. The pressure is increased as compared with the case where the open car 1A is in the closed state. As a result, when the open car 1A is in the open state, the output performance of the engine 17 is improved as compared with the case where the open car 1A is in the closed state.

In addition, in the fuel supply amount control performed by the control unit 190, the open car 1A is set to the closed state, whereby the low level detection output signal SH is supplied from the state determination switch 10. And, the engine rotation speed represented by the detection output signal SN obtained from the rotation speed sensor 191 is collated with the characteristic line BA in the fuel supply characteristic shown in the characteristic diagram of FIG. 30, and the open car 1A takes the closed state. The fuel supply amount corresponding to the engine speed represented by the detection output signal SN is calculated. Also, open car 1
It is assumed that A is in an open state, whereby the detection output signal SN obtained from the rotation speed sensor 191 represents the engine rotation speed under the condition that the high level detection output signal SH is supplied from the state determination switch 10. By collating with the characteristic line BB in the fuel supply characteristic shown by the characteristic diagram of FIG. 30, the fuel supply amount corresponding to the engine speed represented by the detection output signal SN is obtained while the open car 1A is in the open state. To be

Then, the control signal C2 corresponding to the calculated fuel supply amount is sent from the control unit 190 to the fuel injection valve 17
7 is supplied. As a result, the fuel injection supply of the fuel injection valve 177 toward the intake port 163 is controlled according to the control signal C2, and the fuel supply amount from the fuel injection valve 177 corresponds to the control signal C2. . As a result, when the amount of fuel supplied to the intake port 163 is as shown in FIG.
Characteristic line B in the fuel supply characteristic shown by the characteristic diagram of
In addition, when the open car 1A is in the open state, it follows the characteristic line BB in the fuel supply amount characteristic shown by the characteristic diagram of FIG.

As described above, when the open car 1A is in the closed state, the fuel supply amount control according to the characteristic line BA in the fuel supply characteristic shown in the characteristic diagram of FIG. 30 is performed, and the open car 1A is opened. When the open car 1A is in the open state by controlling the fuel supply amount according to the characteristic line BB in the fuel supply characteristic shown in the characteristic diagram of FIG. In the engine speed range where the number is 5,000 rpm or more, the fuel supply amount to the intake port 163 becomes large compared with the case where the open car 1A is in the closed state. As a result, when the open car 1A is in the open state, the output performance under the relatively high rotation speed of the engine 17 is improved as compared with the case where the open car 1A is in the closed state. Will be done.

Further, in the engine torque control performed by the control unit 190, the open car 1A
Is assumed to be in a closed state, whereby the characteristic line CA in the torque characteristic shown by the characteristic diagram of FIG. 31 can be obtained under the condition that the low level detection output signal SH is supplied from the state determination switch 10. Timing Tia for the closing timing of the intake valve 165 is set. Further, under the condition that the open car 1A is in the open state, and the high level detection output signal SH is supplied from the state determination switch 10, the characteristic line in the torque characteristic shown by the characteristic diagram of FIG. 31 is obtained. The timing Tib regarding the closing timing of the intake valve 165 that will obtain CB is set.

Then, the control signal C3 corresponding to the set timing Tia or timing Tib is supplied from the control unit 190 to the valve drive mechanism 180. As a result, the intake valve 16 driven by the valve drive mechanism 180
5 and the closing timing of the intake valve 165 of the exhaust valve 167 are controlled to be timing Tia or timing Tib according to the control signal C3. As a result, the closing timing of the intake valve 165 is the timing Ti when the open car 1A is in the closed state.
As a result, under the condition that the open car 1A is in the closed state, the engine torque is as shown in FIG.
Characteristic line C in the torque characteristic shown by the characteristic diagram of No. 1
In addition, the closing timing of the intake valve 165 is set to the timing Tib when the open car 1A takes the open state, and as a result, the open car 1A takes the open state. The engine torque follows the characteristic line CB in the torque characteristic shown by the characteristic diagram of FIG.

As described above, when the open car 1A is in the closed state, the engine torque control according to the characteristic line CA in the torque characteristic shown in the characteristic diagram of FIG. 31 is performed, and the open car 1A is in the open state. When taking, the engine torque control according to the characteristic line CB in the torque characteristic shown by the characteristic diagram of FIG. 31 is performed, so that the maximum engine torque value is obtained when the open car 1A is in the open state. The engine torque obtained in the engine rotation range in which the engine rotation range is set to a higher rotation side than when the open car 1A is in the closed state and the engine rotation speed is approximately 5,500 rpm or more is the open car 1A. Will be larger than when it is closed.
As a result, when the open car 1A is in the open state, the output performance under the relatively high rotation speed of the engine 17 is improved as compared with the case where the open car 1A is in the closed state. Will be done.

FIG. 32 shows a tenth example of the power plant structure of the open car according to the present invention. The tenth example shown in FIG. 32 includes, for example, an engine and an automatic transmission mounted in the convertible shown in FIGS. 1 and 2.

In FIG. 32, the engine 17 is provided with an intake passage 196 in which a throttle valve 195 is arranged and is additionally provided with an automatic transmission 16. The engine 17 and the automatic transmission 16 are open. It constitutes the power plant installed in the car 1A. The automatic transmission 16 is connected to a case 198 accommodating a torque converter connected to the crankshaft of the engine 17 and an output shaft of the torque converter, and is, for example, a multi-stage gear that provides four forward gears and one reverse gear. A case 199 that accommodates a conventional transmission mechanism, and a case 200 that accommodates a torque converter and a hydraulic circuit unit that supplies operating hydraulic pressure used for controlling the operation of the transmission mechanism are provided.

In the automatic transmission 16, the working hydraulic pressure is appropriately selected through the oil passages provided with various shifting solenoid valves 201 in the hydraulic circuit section for each of the plurality of friction engagement elements provided in the transmission mechanism. And the plurality of frictional engagement elements in the speed change mechanism are brought into the engaged state or the released state, and the parking (P) is supplied.
Range, reverse (R) range, neutral (N) range, and drive (D) range, 2-range, and 1-range shift ranges that form the forward range, and 1st to 4th shifts in the forward range You get a step.

The automatic transmission 16 has a control unit 205 that shifts gears for switching the shift speed of a shift mechanism provided therein.
Controlled by. The control unit 205 includes a detection output signal SL, which is obtained from a throttle opening sensor 206 that detects the opening (throttle opening) of a throttle valve 195 that is opened and closed according to the operation of an accelerator pedal.
A detection output signal SV obtained from a speed sensor 207 for detecting the traveling speed (vehicle speed) of the open car 1A, a detection output signal group SY representing other traveling states such as a range position of the shift lever 13, and the window frame are supplied. The high-level or low-level detection output signal SH obtained from the two state determination switches 10 arranged in the forming unit 9 is supplied.
Each of the state determination switches 10 sends out a high level detection output signal SH when it takes an on state (open state), and a low level detection output when it takes an off state (closed state). The signal SH is transmitted. Then, the control unit 205 forms a control drive signal group CX on the basis of various signals supplied thereto, and supplies it to various shift solenoid valves 201 in the hydraulic circuit section of the automatic transmission 16 so as to generate them. Shift solenoid valve 20
By changing the operation of No. 1, the shift operation control for switching the shift stage of the transmission mechanism in the automatic transmission 16 is performed.

When the control unit 205 controls the shift operation of the automatic transmission 16, the shift down control and the shift up control of the shift speed are performed by using the hood portion 7 equipped with the open car 1A at the upper part of the passenger compartment. It is performed in different manners when the closed state where the rear portion is covered and the opened state where the hood portion 7 is folded so as not to cover the upper portion and the rear portion of the vehicle compartment is performed.

In the built-in memory of the control unit 205, for example, the vehicle speed V is taken on the horizontal axis and the throttle opening TH is taken on the vertical axis. The shift-up shift characteristics shown in the characteristic diagram of FIG. 34, in which the vehicle speed V is taken on the horizontal axis and the throttle opening TH is taken on the vertical axis, are stored as a data map. In the shift-down shift characteristic shown in the characteristic diagram of FIG. 33, the shift line LD
A and ODA are related to downshifting from 4th speed to 3rd speed, and shift lines LDB and ODB are respectively from 3rd speed to 2nd speed.
Related to downshifting to speed and shift line DC
Is related to downshifting from 2nd speed to 1st speed. Further, in the shift-up gear shift characteristic shown in the characteristic diagram of FIG. 34, each of the shift lines LUA and OUA is 3
Shift up from 4th to 4th, shift line LU
Each of B and OUB is related to the shift up from the second speed to the third speed, and the shift line UC is related to the shift up from the first speed to the second speed.

In the shift down control of the shift operation control for the automatic transmission 16 performed by the control unit 205, the open car 1A is set to the closed state, whereby the state determination switch 10 detects a low level. Under the condition that the output signal SH is supplied,
In the control unit 205, the downshift operation by the automatic transmission 16 is performed according to the shift lines LDA, LDB and DC in the downshift gear shifting characteristic shown in the characteristic diagram of FIG. , And is supplied to various shifting solenoid valves 201 in the hydraulic circuit section housed in the case 200.
As a result, the automatic transmission 16 shifts down from the fourth speed to the third speed according to the shift line LDA, downshifts from the third speed to the second speed is performed according to the shift line LDB, and further from the second speed to the first speed. Shift down is shift line D
Done according to C.

On the other hand, under the condition that the open car 1A is in the open state so that the high level detection output signal SH is supplied from the state determination switch 10, the control unit 205 causes the automatic transmission 16 to operate. The control-driving-signal group CX is to perform the down-shifting operation according to the shift lines ODA, ODB, and DC in the shift-down shifting characteristic shown in the characteristic diagram of FIG.
Is formed and is supplied to various speed change solenoid valves 201 in the hydraulic circuit unit housed in the case 200. As a result, the automatic transmission 16 shifts down from the fourth speed to the third speed according to the shift line ODA.
Downshifting from the second speed to the second speed is performed according to the shift line ODB, and further downshifting from the second speed to the first speed is performed according to the shift line DC. Under such circumstances, the shift down from the 4th speed to the 3rd speed is performed at the small throttle opening-high vehicle speed side as compared with the case where the closed state is taken, and from the 3rd speed to the 2nd speed. The shift down is also performed at the small throttle opening-high vehicle speed side as compared with the case where the closed state is taken.

In the shift-up control of the shift operation control for the automatic transmission 16 performed by the control unit 205, the open car 1A is set to the closed state, whereby the state determination switch 10 outputs the low level signal. Under the control of the control unit 205, the shift-up operation by the automatic transmission 16 is performed according to the shift lines LUA, LUB and UC in the shift-up shift characteristic shown in the characteristic diagram of FIG. Control drive signal group CX
Is formed and is supplied to various speed change solenoid valves 201 in the hydraulic circuit unit housed in the case 200. As a result, the automatic transmission 16 shifts up from the third speed to the fourth speed according to the shift line LUA.
The shift up from the third speed to the third speed is performed according to the shift line LUB, and the shift up from the first speed to the second speed is performed according to the shift line UC.

On the other hand, under the condition that the open car 1A is in the open state and the high level detection output signal SH is supplied from the state determination switch 10, the control unit 205 controls the automatic transmission. 16
The control drive signal group C to be performed by the shift up operation according to the shift lines OUA, OUB and UC in the shift up shift characteristic shown in the characteristic diagram of FIG.
X is formed and is supplied to various speed change solenoid valves 201 in the hydraulic circuit unit housed in the case 200. As a result, the automatic transmission 16 changes from the third speed to the fourth speed.
Upshift to speed is performed according to the shift line OUA,
Shift up from second speed to third speed is performed according to shift line OUB, and further shift up from first speed to second gear is performed according to shift line UC. Under such circumstances, the shift-up from the third speed to the fourth speed is performed at the large throttle opening-low vehicle speed side as compared with the case where the closed state is taken, and from the second speed to the third speed. Even when shifting up, the large throttle opening-
It will be performed on the low vehicle speed side.

As described above, when the open car 1A is in the closed state, the downshift operation is performed in accordance with the shift lines LDA, LDB and DC in the downshift gear shifting characteristic shown in the characteristic diagram of FIG.
The shift-up operation is performed by the shift lines LUA, LUB and UC in the shift-up shift characteristic shown in the characteristic diagram of FIG.
In accordance with the above, and the open car 1A is in the open state, the shift down operation is performed by the shift line O in the shift down shift characteristic shown in the characteristic diagram of FIG.
The open car 1A is opened by performing the shift-up operation according to the shift lines OUA, OUB and UC in the shift-up shift characteristic shown in the characteristic diagram of FIG. 34 while being performed according to DA, ODB and DC. When taking a state, downshift from 4th speed to 3rd speed and downshift from 3rd speed to 2nd speed
Compared to the case where the closed state is taken, the operation is performed at the small throttle opening-high vehicle speed side, and the shift up from the third speed to the fourth speed and the shift up from the second speed to the third speed are performed in the closed state. In comparison, it is performed at the large throttle opening-low vehicle speed side.

Therefore, when the open car 1A travels in the open state, the acceleration capability is improved, and the running resistance is larger than that in running in the closed state. Even under such a circumstance, the actual acceleration performance can be made equivalent to that when traveling in the closed state.

[0134]

As is apparent from the above description, according to the power plant structure of the open car according to the first and second aspects of the present invention, the output performance of the engine mounted in the open car is When traveling in the open state, it is improved compared to traveling in the closed state, and the running performance, especially the acceleration performance when the open car runs in the open state is improved. , The convertible could be equivalent to running in a closed condition, and
The improvement of the driving performance when the open car is driven in the open state can be obtained while the deterioration of the fuel consumption is effectively suppressed.

Further, according to the power plant structure of the open car relating to the third aspect of the present invention, the shift characteristic of the automatic transmission attached to the engine mounted on the open car is:
When the open car travels in the open state, it is said that the acceleration capability of the open car is improved as compared to when the open car travels in the closed state. As a result, when the open car travels in the open state, the actual acceleration will increase even if the running resistance is greater than when driving in the closed state. The performance can be made equivalent to that when running under the closed condition.

[Brief description of drawings]

FIG. 1 is a side view showing a first example of a power plant structure of an open car according to the present invention together with an open car to which the first example is applied.

FIG. 2 is a plan view showing a first example of a power plant structure of an open car according to the present invention together with an open car to which the first example is applied.

FIG. 3 is a cross-sectional view provided for explaining a configuration of a main part in the first example shown in FIGS. 1 and 2.

FIG. 4 is a cross-sectional view provided for explaining a main part of the first example shown in FIGS. 1 and 2.

FIG. 5 is a side view including a partial cross-section used for explaining the configuration of the main part in the first example shown in FIGS. 1 and 2.

FIG. 6 is a side view including a partial cross section used for explaining the operation of the main part shown in FIG. 5;

FIG. 7 is a side view showing a second example of a power plant structure for an open car according to the present invention, together with an open car to which the second example is applied.

FIG. 8 is a plan view showing a second example of a power plant structure of an open car according to the present invention, together with an open car to which the second example is applied.

FIG. 9 is a cross-sectional view provided for explaining a configuration of a main part in the second example shown in FIGS. 7 and 8.

FIG. 10 is a side view showing a third example of a power plant structure for an open car according to the present invention, together with an open car to which the third example is applied.

FIG. 11 is a plan view showing a third example of a power plant structure for an open car according to the present invention, together with an open car to which the third example is applied.

12 is a cross-sectional view provided for explaining a configuration of a main part in a third example shown in FIGS. 10 and 11. FIG.

13 is a cross-sectional view provided for explaining a main part shown in FIG.

FIG. 14 is a side view showing a fourth example of a power plant structure for an open car according to the present invention, together with an open car to which the fourth example is applied.

FIG. 15 is a plan view showing a fourth example of a power plant structure for an open car according to the present invention, together with an open car to which the fourth example is applied.

FIG. 16 is a cross-sectional view provided for explaining the configuration of a main part in the fourth example shown in FIGS. 14 and 15.

FIG. 17 is a perspective view showing a fifth example of a power plant structure of an open car according to the present invention together with an open car to which the fifth example is applied.

FIG. 18 is a side view including a partial cross section used for explaining the configuration of a main part in the fifth example shown in FIG.

FIG. 19 is an enlarged cross-sectional view provided for explaining a main part of the fifth example shown in FIG.

FIG. 20 is a perspective view showing a sixth example of a power plant structure of an open car according to the present invention together with an open car to which the sixth example is applied.

FIG. 21 is a side view including a partial cross-section used for explaining the configuration of a main part in the sixth example shown in FIG. 20.

FIG. 22 is a perspective view showing a seventh example of a power plant structure of an open car according to the present invention, together with an open car to which the seventh example is applied.

FIG. 23 is a side view including a partial cross-section used for explaining the configuration of a main part in the seventh example shown in FIG. 22.

FIG. 24 is an enlarged cross-sectional view provided for explaining a main part in a seventh example shown in FIG. 23.

FIG. 25 is a perspective view showing an eighth example of a power plant structure of an open car according to the present invention, together with an open car to which the eighth example is applied.

FIG. 26 is a side view including a partial cross-section used for explaining the configuration of a main part in the eighth example shown in FIG. 25.

FIG. 27 is an enlarged cross-sectional view provided for explaining a main part of the eighth example shown in FIG. 26.

FIG. 28 is a configuration diagram showing a ninth example of the power plant structure of the open car according to the present invention.

FIG. 29 is a characteristic diagram provided for explaining the operation of the ninth example shown in FIG. 28.

FIG. 30 is a characteristic diagram provided for explaining the operation of the ninth example shown in FIG. 28.

FIG. 31 is a characteristic diagram provided for explaining the operation of the ninth example shown in FIG. 28.

FIG. 32 is a configuration diagram showing a tenth example of a power plant structure of an open car according to the present invention.

FIG. 33 is a characteristic diagram provided for explaining the operation of the tenth example shown in FIG. 32.

FIG. 34 is a characteristic diagram provided for explaining the operation of the tenth example shown in FIG. 32.

[Explanation of symbols]

1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H
Open car 2,102 Body 2L, 102L Left rear fender section 2R, 102R Right rear fender section 3 Driver's seat 4 Passenger's seat 7,60,115 Top section 8 Top section 10 State determination switch 13 Shift lever 16 Automatic gear shift Machine 17, 105 Engine 26 Main radiator 29 Pump / open / close valve unit 30, 63L, 63R Sub radiator 31, 61, 71, 80 Bottom forming member 31A, 61A, 71A, 81A, 118A, 136
A, 147L, 147R traveling wind inlet 32 shutter member 35,74,86,103,117,135,145
Vehicle compartment partitioning member 36L, 36R Passage forming member 38L, 87L Left traveling wind passage 38R, 87R Right traveling wind passage 39L, 39R, 90L, 90R, 91L, 91R, 1
48L, 148R traveling wind exhaust port 45 motor 56 flat plate member 70, 116 board member 76L, 76R cylinder device 146 traveling wind inlet port forming member 86A, 86L, 86R, 110, 118, 136, 1
50L, 150R Passage forming portion 87A Common traveling wind passage 89, 113, 141, 154 Opening / closing member 100 Engine room 106, 151 Air cleaner 107 Exhaust passage forming member 111, 120, 138 Connection passage forming portion 114 Ventilation port forming member 112, 121, 140,153 traveling wind passage 125 coil spring 131 wire 162 combustion chamber 163 intake port 165 intake valve 166 intake passage 169 exhaust passage 171 turbocharger 171A compressor 171B turbine 173 pressure sensor 177 fuel injection valve 178 supercharging pressure adjusting unit 180 valve Drive mechanism 190, 205 Control unit 191 Rotation speed sensor 195 Throttle valve 201 Shift solenoid valve 206 Throttle opening sensor 207 Speed sensor a Airflow path

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshiki Watanabe 3-1, Shinchi, Fuchu-cho, Aki-gun, Hiroshima Prefecture Mazda Motor Corporation

Claims (16)

[Claims] 1. An engine mounted on an open car that selectively takes a first state in which an upper part of a vehicle interior portion of the vehicle body is covered by a roof forming portion and a second state in which the upper portion is not covered by the roof forming portion; An engine accessory arranged at a position related to an air flow path formed on the upper side of the passenger compartment when the convertible car travels in the second state; A power plant structure for an open car, comprising: a traveling wind passage forming portion that forms a traveling wind passage that guides traveling wind flowing through an air flow passage to the engine accessory. 2. The power plant structure for an open car according to claim 1, wherein the engine auxiliary machine constitutes a cooling system attached to the engine. 3. The power plant structure for an open car according to claim 1, wherein the engine auxiliary device constitutes an intake system associated with the engine. 4. The power plant structure for an open car according to claim 1, wherein the traveling wind passage forming portion controls opening / closing of the traveling wind passage. 5. The roof according to claim 1, wherein the traveling wind passage forming portion is in a folded state, with the roof forming portion selectively taking a developed state that covers an upper portion of a vehicle compartment portion and a folded state that does not cover the upper portion. It is comprised by the formation part, Claim 1 characterized by the above-mentioned.
Open car power plant structure described. 6. A board provided with a traveling wind passage forming portion at a rear portion of a seat installed on a vehicle body to prevent the traveling wind from being entrained in a vehicle compartment portion when the vehicle body is in the second state. The power plant structure for an open car according to claim 1, wherein the power plant structure is formed of a member. 7. The power plant structure for an open car according to claim 1, wherein the traveling wind passage forming portion is constituted by a vehicle body constituent member forming a rear portion of a vehicle compartment portion of the vehicle body. 8. The power plant structure for an open car according to claim 7, wherein the vehicle body constituent member constitutes an engine room forming portion in addition to the traveling air passage forming portion. 9. An engine mounted on an open car that selectively takes a first state in which an upper part of a vehicle interior portion of a vehicle body is covered by a roof forming portion and a second state in which the roof forming portion is not covered, and the open car. The state determination means for determining whether the engine is in the first state or the second state, the operating state detection means for detecting the operating state of the engine, and the determination output obtained from the state determination means is the open car. Indicates that is in the second state above,
When the detection output obtained from the operating state detecting means indicates that the operating state of the engine is a particular one, the discriminant output obtained from the state discriminating means is output to the control target involved in the output performance of the engine. Compared to when the open car is in the first state and the detection output obtained from the operating state detecting means indicates that the operating state of the engine is the specific state, the engine is And a control means for performing control for improving the output performance of the open car power plant structure. 10. The power plant structure for an open car according to claim 9, wherein the operating state detecting means is adapted to detect an engine speed. 11. The power plant structure for an open car according to claim 9, wherein the control means controls a supercharging pressure by a supercharger attached to the engine. 12. The power plant structure for an open car according to claim 9, wherein the control means controls the amount of fuel supplied to the engine by a fuel supply unit provided in the engine. 13. The power plant structure of an open car according to claim 9, wherein the control means controls opening / closing timing of an intake valve provided in the engine. 14. An engine mounted on an open car that selectively takes a first state in which an upper portion of a vehicle interior portion of a vehicle body is covered by a roof forming portion and a second state in which the upper portion is not covered by the roof forming portion, and is connected to the engine. The automatic transmission, the state determining means for determining whether the open car is in the first state or the second state, the traveling speed detecting means for detecting a traveling speed of the open car, and When the discriminating output obtained from the state discriminating means indicates that the open car is in the second state, the control relating to the shift characteristic of the automatic transmission according to the detected output obtained from the traveling speed detecting means. Compared to the case where the discrimination output obtained from the state discrimination means indicates that the open car is in the first state,
A power plant structure for an open car, comprising: a control unit that performs control for improving the acceleration performance of the open car. 15. The shift of the automatic transmission according to the detection output obtained from the traveling speed detection means when the control means indicates that the open car is in the second state by the determination output obtained from the state determination means. The control target related to the characteristic is smaller than that when the downshift operation by the automatic transmission indicates that the open car is in the first state by the determination output obtained from the state determination means. 15. The power plant structure for an open car according to claim 14, wherein control is performed such that the control is performed on the opening degree-high vehicle speed side. 16. The shift of the automatic transmission according to the detection output obtained from the traveling speed detection means when the control means indicates that the open car is in the second state by the determination output obtained from the state determination means. Compared to the case where the upshift operation by the automatic transmission indicates that the open car is in the first state when the shift-up operation by the automatic transmission indicates that the open car is in the first state. The power plant structure for an open car according to claim 14, wherein control is performed such that the control is performed on the degree of opening minus the low vehicle speed side.