KR20050000440A - Continuous variable intake apparatus - Google Patents

Abstract

PURPOSE: A continuously variable intake system is provided to improve acceleration responsiveness, and to increase output of the engine by varying the length of the intake passage as well as the sectional area of the intake passage according to the change of the operational range of the engine. CONSTITUTION: A rotor(40) is rotated spirally and formed cylindrically in a housing(30) of an intake manifold, and a baffle(42) is formed spirally between the inner periphery of the housing and the outer periphery of the rotor. A penetration hole(43) is formed in the rotor to guide intake air from the rotor to an intake passage(32) formed by the pitch of the baffle. The length of the intake passage is adjusted by rotating the rotor spirally and by moving back and forth. The cones are formed repeatedly and inclined corresponding to the outer periphery of the rotor in the inner periphery of the housing. The distance from the penetration hole to the runner as the length of the intake passage between the outer periphery of the rotor and the inner periphery of the housing is adjusted, and the sectional area of the intake passage is varied.

Description

Continuous variable intake apparatus

The present invention relates to a continuously variable intake apparatus, and more particularly, to a continuously variable intake apparatus for varying the length and cross-sectional area of the intake passage over all operating regions of the engine.

It is an engine that obtains power by converting thermal energy into rotational energy by burning a mixture of intake and fuel of a gasoline engine in a cylinder. To this end, in order to allow air and fuel to be supplied to each cylinder together, an intake port serving as an air inflow passage is formed at the other side of the cylinder head of the engine, and an exhaust port is formed at one side of the cylinder head. An intake manifold is formed to allow the intake air passing through the air duct, the air cleaner and the surge tank to be evenly distributed to each intake port.

On the other hand, in recent years, a variable intake device has been applied to the intake of the engine, and this variable intake device distinguishes when the engine is operated at low speed and at high speed so that the flow path of the intake air sucked into the cylinder can be adjusted. It is composed. That is, when the engine is operated under low load and low speed, the intake flow path is sufficiently secured so that the intake swirl can be sufficiently achieved. When the engine is operated under high load and high speed, the air flow path is reduced for rapid inflow of intake air. will be.

Description of the related art Intake manifold to which the variable intake apparatus is applied is as described in the patent application No. 2003-34241 filed by the present applicant. As can be seen in Patent Application No. 2003-34241, the present applicant has filed an invention for improving a conventional variable intake apparatus, and FIGS. 7 to 8 are some views of a continuous variable intake apparatus filed by the present applicant.

In the variable intake apparatus illustrated in the drawing, a cylindrical rotor 20 helically moved inside the housing 11 of the intake manifold 10 formed in a cylindrical shape, and air introduced into the rotor 20 is formed. Through hole 21 is formed so that the inner portion of the housing 11 can be moved, the baffle for the formation of the intake passage 12 between the inner periphery of the housing 11 and the outer periphery of the rotor 20 13 are arranged at predetermined intervals. Therefore, the intake air introduced into the rotor 20 is distributed to the intake passage 12 through the through-hole 21, and the intake air introduced into each intake passage 12 along the runner 14 of the engine. It is configured to flow to the intake port. That is, when the driving motor 25 controlled by the electronic control device 24 is operated in accordance with the change of the operating region of the engine, the rotor 20 is rotated in the helical direction of the baffle 13 to move forward or backward. In addition, the intake air introduced into the rotor 20 passes through the intake flow passage 12 provided between the baffle 13 and the baffle 13 through the through hole 21. The intake flow passage 12 is a rotor ( 20) is configured to vary in length as it is advanced back and forth.

However, in the case of the variable intake apparatus configured as described above, the purpose of improving the performance of the engine can be achieved to some extent because only the length of the intake flow passage is variable, but there is a limit in achieving the sufficient purpose of improving the performance of the engine. there was.

Accordingly, an object of the present invention is to provide a continuously variable intake apparatus for allowing the length and cross-sectional area of an intake flow passage to be varied over all operating regions of the engine.

The present invention as a means for achieving the above object,

A spiral baffle having a pitch of a predetermined interval for guiding the rotor accommodated inside the housing of the intake manifold formed in a cylindrical shape so as to rotate in a helical direction and move back and forth is provided with an inner circumference of the housing and an outer circumference of the rotor. The rotor is formed in the rotor at a predetermined interval so that the intake air flowing into the rotor is led to the intake passage formed by the pitch of the baffle, and the rotor rotates in a helical direction. In the variable intake apparatus is configured to adjust the length of the intake flow path of the intake air passing through the runner as it is moved forward,

The rotor of the rotor is formed by repeating a conical barrel formed in a spiral pitch baffle formed on the outer periphery at a predetermined pitch interval, the inner periphery of the housing is in a direction corresponding to the shape of the outer periphery of the rotor Conical barrel shape having a slope is formed to repeat,

And a cross-sectional area of the intake flow passage connected to the runner in the through hole, as well as the distance from the through hole to the runner, which is the length of the intake flow passage provided between the outer periphery of the rotor and the inner periphery of the housing. It is done.

1 is a block diagram of a continuous variable intake apparatus according to the present invention.

Figure 2 is a partial cutaway perspective view of a continuous variable intake apparatus according to the present invention.

Figure 3 is a perspective view of the rotor of the continuous variable intake apparatus according to the present invention.

4 is an operational state diagram of the present invention, Figure 5 is a cross-sectional view taken along the line A-A of FIG.

5 is a cross-sectional view taken along the line B-B in FIG.

7 to 8 are views for explaining the conventional technology.

※ Explanation of code for main part of drawing

100: continuous variable intake apparatus 30: housing

32: intake flow path 34: runner

36: spiral groove 40: rotor

41: surge tank 42: baffle

43: through hole 45: spline

50: variable separator 51: hinge

60: electronic control device 61: drive motor

Hereinafter, a preferred embodiment according to the configuration and operation of the continuous variable intake apparatus according to the present invention will be described in detail with the accompanying drawings.

1 is a configuration diagram of a continuous variable intake apparatus according to the present invention, Figure 2 is a partial cutaway perspective view of the continuous variable intake apparatus according to the present invention, Figure 3 is a perspective view of a rotor of the continuous variable intake apparatus according to the present invention, 4 is an operation state diagram of the present invention, Figure 5 is a cross-sectional view taken along the line AA of Figure 1, Figure 5 is a cross-sectional view taken along the line BB of FIG.

Reference numeral 100, which is shown in the figure, designates a continuously variable intake apparatus formed by the present invention, and reference numerals 30 and 40 designate a housing and a rotor of the device according to the present invention.

The continuous variable intake apparatus 100 is an intake manifold connecting the throttle body and the intake port of the engine. That is, the inner space of the rotor 40 is the surge tank 41, the passage provided between the outer periphery of the rotor 40 and the inner periphery of the housing 30 is the intake passage 32, The runner 34 extending from the intake passage 32 to protrude toward one side of the housing 30 is configured to be connected to the intake port of the engine.

The inner circumference of the housing 30 and the outer circumference of the rotor 40 are distributed so that the intake air introduced into the rotor 40 can be led to each intake port of the engine through the runner 40. In the liver, a rotor 30 for separating the intake passage 32 is arranged in a spiral shape. In this way, the baffles 42 spirally arranged between the inner circumference of the housing 30 and the outer circumference of the rotor 40 are continuously formed at a predetermined pitch, and in the middle of a passage provided between neighboring baffles 42. Is configured to be in communication with the inlet of each runner 34 formed in plural in accordance with the number of cylinders of the engine. That is, as shown in the drawing, two pitches of the helical intake passage 32 formed by the baffle 42 are separated into a plurality of pitches so as to communicate with one runner 34. Each intake passage 32 is described above. It is configured such that the length of the suction air passing through) can be changed by the movement of the rotor 40. In the middle of the rotor 40, through-holes 43 are formed at predetermined intervals to allow suction air introduced into the surge tank 41, which is an inner space thereof, to be led to each intake flow path 32. The air introduced into the surge tank 41 is configured to flow into each intake passage 32 through the through hole 43.

Particularly, in the continuous variable intake apparatus 100 according to the present invention, the intake passage 32 provided between the inner circumference of the housing 30 and the inner circumference of the rotor 40 has a cylindrical shape with a constant diameter in the longitudinal direction thereof. Instead, it is formed in a conical cylinder shape whose diameter gradually changes in the longitudinal direction. That is, the body of the rotor 40 is formed in a shape that a plurality of conical barrels are in continuous contact with each other, the inner circumference of the housing 30 is also formed in a shape corresponding to the outer circumference of the body of the rotor 40 .

On the other hand, the inclination of the conical barrel forming the body of the rotor 40 and the inclination of the conical barrel forming the inner periphery of the housing 30 can be adjusted according to the engine specifications.

As described above, the outer periphery of the rotor 40 and the inner periphery of the housing 30 are formed in a truncated cone shape so that the diameter of the intake passage 32 varies when the rotor 40 is moved. In order to allow the size of the cross-sectional area as well as the length of the intake passage 32 through which the intake air can pass from the ball 43 to the inlet of the runner 34.

On the other hand, the rotor 40 is formed integrally with the baffle 42 is a spiral baffle as shown in the figure so that it can be moved forward and backward while rotating, the baffle 42 on the inner circumference of the housing 30 ) Is inserted into the outer side of the spiral groove 36 for guiding the helical movement of the rotor 40 is formed at a predetermined pitch.

One end of the rotor 40 is formed to protrude to the outside of the housing 30, and a spline 45 for power transmission is formed at the end thereof. The spline 45 is formed to engage with the gear 62 rotated in accordance with the operating direction of the forward and reverse operation of the drive motor 61 driven by the control of the electronic controller 60. That is, as the driving motor 61 is rotated, the rotational force is transmitted to the rotor 40 by the gear 62 and the spline 45, and the rotor 40 rotates by the rotational force transmitted. By the spiral baffle 42 and the spiral groove 36, the rotor 40 is configured to be movable in the longitudinal direction while rotating in the spiral direction.

In order to allow the inlet of the runner 34 connected to each intake flow passage 32 to be in communication with the neighboring intake flow passage 32 even though the rotor 40 is moved while rotating in a spiral direction, The variable separation plate 50 that can be rotated by the hinge 51 and the spring 52 is formed at a portion where the flow path 32 and the runner 34 are connected. That is, when the diameter of the rotor 40 is increased, the variable separator plate 50 is rotated in compliance with the enlarged outer circumferential surface of the rotor 40, and when the diameter of the rotor 40 is decreased, the spring 52 is rotated. By the elastic force of the) is to be configured so that the state always in contact with the outer peripheral surface of the rotor 40.

According to the present invention configured as described above, the driving motor 61 is operated in the above-described electronic control apparatus 60 according to the change in the operating region of the engine.

That is, when the engine is operated in the low speed region, as shown in FIGS. 1 and 5, the position of the through hole 43 provided in the rotor 40 may correspond to the position where the intake passage 32 is longest. When the engine is operated in the high speed region, as shown in FIGS. 4 and 6, the position of the through hole 43 provided in the rotor 40 is shortened to the position of each intake passage 32. It works so that it can.

As described above, as the rotor 40 moves from the low speed operation region direction of the engine to the high speed operation region direction, the length of the intake flow passage 32 provided between the outer periphery of the rotor 40 and the inner periphery of the housing 30 is increased. By varying over the entire operating area of the engine, the response according to acceleration is improved and the engine output is improved.

In particular, the continuous variable intake apparatus 100 according to the present invention is moved along the helical direction in the housing 30, the body of the rotor 40 of the moving chain rotor 40, the outer periphery of the rotor 40 and the housing ( The size of the cross-sectional area of the intake passage 32 provided between the inner circumferences of 30 is variable. Therefore, as the driving region of the engine changes from the low speed region to the high speed region, the cross-sectional area of the intake passage 32 is enlarged as shown in FIGS. 4 and 6, so that the response of the intake air due to acceleration is further expanded. The output is greatly improved.

In the case of a high horsepower engine in which the size of the engine is relatively large, as well as the length of the intake passage as well as the cross-sectional area size of the intake passage as described above, if the continuous variable intake apparatus according to the present invention is applied to the engine The intake cylinder of the tube is compacted, which is advantageous to the layout of the engine room. In addition, according to the continuous variable intake apparatus 100 according to the present invention, since the variable length of the intake flow passage is formed larger than the length, the volumetric efficiency is greatly improved.

The present invention configured as described above is configured to extend not only the length of the intake passage but also the cross-sectional area size of the intake passage according to the change of the operating region of the engine, so that the engine operating region changes from the low speed region to the high speed region. Acceleration response is improved over the operating area, and the engine output is greatly improved, and there is a great advantage in the layout of the engine room in which a high-power engine, which must be relatively bulky, is mounted.

Claims (3)

A spiral baffle having a pitch of a predetermined interval for guiding the rotor accommodated inside the housing of the intake manifold formed in a cylindrical shape so as to rotate in a helical direction and move back and forth is provided with an inner circumference of the housing and an outer circumference of the rotor. The rotor is formed in the rotor at a predetermined interval so that the intake air flowing into the rotor is led to the intake passage formed by the pitch of the baffle, and the rotor rotates in a helical direction. In the continuously variable intake apparatus is configured to adjust the length of the intake flow path of the intake air passing through the runner as the exercise is moved, The body of the rotor 40 is formed by repeating the conical barrel formed by the baffle 42 formed in a spiral shape on the outer periphery at a predetermined pitch interval, and the inner periphery of the housing 30 is the rotor 40. Conical barrel shape having a slope in the direction corresponding to the shape of the outer circumference of the body) is formed to be repeated, In addition to the distance from the through hole 43, which is the length of the intake passage 32 provided between the outer circumference of the rotor 40 and the inner circumference of the housing 30, to the runner 34, the through hole ( 43) continuously variable intake apparatus, characterized in that the cross-sectional area of the intake passage 32 is connected to the runner (34) is variable. The method of claim 1, On the outer circumference of the rotor 40, a baffle 42 is formed integrally with a spiral, and a spiral groove 36 is formed inside the housing 30 to guide the baffle 42 of the spiral type. Continuously variable intake apparatus, characterized in that formed. The method of claim 1, The diameter of the rotor 40 in contact with the inlet of the runner 34 is variable as the rotor 40 moves in a spiral direction to the portion where the runner 34 is connected to the annular intake passage 32. Although, the variable separation plate 50 is hingedly coupled so that the intake flow passage 32 and the runner 34 can be kept in communication with the neighboring intake flow passage. Intake device.