CN102061956B - drive device - Google Patents
drive device Download PDFInfo
- Publication number
- CN102061956B CN102061956B CN200910203451.4A CN200910203451A CN102061956B CN 102061956 B CN102061956 B CN 102061956B CN 200910203451 A CN200910203451 A CN 200910203451A CN 102061956 B CN102061956 B CN 102061956B
- Authority
- CN
- China
- Prior art keywords
- rocking arm
- curved surface
- cam
- guiding bearings
- combustion engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/181—Centre pivot rocking arms
- F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L2001/188—Fulcrums at upper surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2305/00—Valve arrangements comprising rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The present invention provides a kind of drive device, including cam, by actuated by cams and is supported on the rocking arm in support shaft, in addition to for adjusting the actuating mechanism of rocking arm position.The actuating mechanism includes at least one connecting rod, and its one end in the middle part of supporting shaft and rocking arm by being articulated and connected；Crank, the other end and the crank of the connecting rod are articulated and connected, and the other end hinged support of the crank is in supporting shaft；Guiding bearings, guiding bearings have a working curved surface；The connecting rod is movably supported on guiding bearings with the part that the rocking arm is hingedly connected to one another.Because drive device adds the regulation of the opening travel to cylinder of internal-combustion engine air inlet and exhaust valve by actuating mechanism, therefore it is bigger to open regulating power to air inlet and exhaust valve；Because the stroke of valve is determined by the lift of cam and the structural parameters lever ratio (L2/L1) of rocking arm, it is possible to reach change valve lift characteristic by adjusting cam lifting curve parameter, rocker structure parameter.
Description
Technical field
The present invention relates to a kind of drive device, particularly a kind of driving for air inlet valve and air outlet valve of internal combustion engine open and close is filled
Put, in particular for motorcycle and the drive device of minicar air inlet valve and air outlet valve of internal combustion engine open and close.
Background technology
The A1 of European patent EP 1 672 183 discloses a kind of rocking arm for being used to force control valve device.Wherein, rocking arm
One end be connected with an adjusting apparatus, the part of the adjusting apparatus can adjust this end of rocking arm with protruding
The position in portion.At the middle part of rocking arm provided with rocker-arm roller, the roller axle is by a connector and is coated on outside cam
The support shaft of roller on circumference is connected.But it is this pressure control device for the adjustment of the opening travel of valve be by
Limitation, i.e., it can not significantly adjust the stroke of valve.Meanwhile, this device can not be adjusted to the opening and closing phase of valve.
A kind of device for being used to control air inlet valve and air outlet valve of internal combustion engine is disclosed in Japanese Unexamined Patent Publication 5-98913.Including one
Root rocking arm, one end of rocking arm is connected with one end of air inlet and exhaust valve push rod, and the piston rod of the other end and a hydraulic action cylinder connects
Connect.A roller also is provided with the middle part of rocking arm.The deficiency of this device is its tune that phase and stroke are opened and closed to air inlet and exhaust valve
Section can only be realized by the change of the radius of curvature of each point on cam external peripheral surface, thus cause the amplitude of accommodation to be restricted.
A kind of device for being used to control air inlet valve and air outlet valve of internal combustion engine is disclosed in Japanese Unexamined Patent Publication 9-21305.Wherein it is also to adopt
With rocking arm and at the middle part of rocking arm, roller is set.But, the shortcoming of this device of the prior art has the disadvantage one with above-mentioned
Sample, all it is that can not do larger adjustment to the opening and closing phase and stroke of air inlet and exhaust valve, it can not be accurately adjusted.
The content of the invention
It is an object of the invention to provide a kind of drive device, so as to the opening and closing phase to cylinder of internal-combustion engine air inlet and exhaust valve and
Opening travel provides the more accurate, adjustment that formation is bigger.This drive device, which is particularly suitable for use in, is arranged on the small-sized hair such as motorcycle
In the space of the narrow and small cavaera of motivation, opening and closing phase and switch over travel to its intake valve provide the more accurate, tune that formation is bigger
It is whole.The switch phase for continuously adjusting air inlet and exhaust valve can be particularly realized in the coaxial mounted valve actuating mechanism of intake and exhaust cam axle
With the function of opening travel.
For achieving the above object, a kind of drive device, including cam are provided according to the present invention, by actuated by cams and propped up
The rocking arm in support shaft is held, in addition to for adjusting the actuating mechanism of rocking arm position.
According to the present invention, the actuating mechanism includes at least one connecting rod, and its one end passes through in supporting shaft and rocking arm
Portion is articulated and connected；Crank, the other end and the crank of the connecting rod are articulated and connected, and the other end hinged support of the crank is in supporting
Bearing pin；Guiding bearings, guiding bearings have a working curved surface；The portion that the connecting rod is hingedly connected to one another with the rocking arm
Divide and be movably supported on guiding bearings.
The rocking arm includes the first working curved surface and the second working curved surface, and first working curved surface is resisted against the outer of cam
On surface, second working curved surface is abutted slidably against on the working curved surface of guiding bearings.
Rocking arm also includes roller, and the roller is rotatably supported on supporting shaft and can be in guiding bearings
Working curved surface is rolled.
The working curved surface of the guiding bearings is a curved surface caved inward, and the curved surface of the depression is recessed positioned at one
In groove, so that rocking arm or roller can be moved in the groove.
Cam relative to rocking arm be arranged on air inlet and exhaust valve identical side, guiding bearings relative to rocking arm be arranged on
The opposite side of air inlet and exhaust valve.
Due to adding the unlatching to cylinder of internal-combustion engine air inlet and exhaust valve by actuating mechanism according to inventive drive means
The regulation of stroke, therefore have compared with the drive device without actuating mechanism in the prior art to air inlet and exhaust valve unlatching regulation energy
Power is bigger；Because the stroke of valve is determined by the lift of cam and the structural parameters lever ratio (L2/L1) of rocking arm, so can
To reach the purpose of change valve lift characteristic by adjusting cam lifting curve parameter, rocker structure parameter.Further, since adopting
The working method moved with being cooperated in the middle part of rocking arm by working curved surface or roller with the spigot surface on guiding bearings, can
Carry out precisely, significantly adjusting and controlling with the switch phase to air inlet valve and air outlet valve of internal combustion engine and opening travel.Importantly,
The spigot surface of guiding bearings is curved surface, by the adjustment and setting to the radius of curvature of each point on the curved surface, can be reached pair
The opening and closing phase and opening travel of air inlet and exhaust valve do the effect of flexible and changeable adjustment.This is that prior art can not.
Rocking arm and valve and camshaft phase are mounted relative to due to being directed to supporting member according to inventive drive means
Row (is entered in anti-side, therefore, camshaft and valve relative to the engine and only one camshaft that rocking arm is located at the same side
Gas camshaft is integrated) engine, also can not change air distribution system layout in the case of, using the present invention, so as to realize
Valve switch phase and the function of opening travel are continuously adjusted, the volume without increasing drive device.
Because using that can continue to use the existing structure of engine during the present invention substantially, the structural modification to engine is smaller,
So the cost spent when being transformed using the present invention engine is smaller.
Due to existing structure of the organization plan relative to this class engine of the present invention, a guiding bearings are merely add
, to reach the crank and connecting rod of control valve switch phase and lift, and big knot need not be increased with for driving rocker motion
Conformational space, will not cause huge structure, so the present invention can be applied to the small-sized hair only with smaller engine space
The engine of motivation, such as motorcycle and minicar.
Because increased actuating mechanism of the invention is that guiding bearings, crank and connecting rod are all not involved in the reciprocal of valve system
Motion and camshaft rotary motion, therefore the movement inertia of valve system and the rotary inertia of cam shaft system will not be increased, this
Sample, even if adding the system, will not also cause valve system movement inertia and cam shaft system rotary inertia increase from
And cause flying off and bouncing for valve, and the burden of timing wheel train will not be increased.Therefore, using the present invention, without more sending elsewhere
Motivation valve system, cam shaft system and timing wheel train existing design parameter, so as to save development cost.
In a preferred embodiment according to the present invention, the sliding friction in actuating mechanism is changed into rolling, its a little and
Effect is obviously.Rolling friction make it that the motion of whole drive device is more flexibly smooth, so as to improve device
Functional reliability and stability.Meanwhile, also reduce energy expenditure.
Cam is arranged on combustion chambers of internal combustion engines valve stem side by the apparatus according to the invention, and guiding bearings are therewith
It is oppositely arranged.In this set, guiding bearings are oppositely arranged with cylinder valve rod, and cam is then arranged at cylinder valve rod one
Side, such setting has fully adapted to the put-put small volume such as motorcycle, the characteristics of installing space is small.
Brief description of the drawings
Fig. 1 is in the signal for opening working condition for expression according to inventive drive means driving internal combustion engine cylinder valve rod
Figure；
Fig. 2 puts the schematic diagram of working condition in being in for expression according to inventive drive means；
Fig. 3 is in the schematic diagram of rearmounted working condition for expression according to inventive drive means；
Fig. 4 is in the schematic diagram of preposition working condition for expression according to inventive drive means.
Heretofore described preposition or rear configuration state is the arrow table in each accompanying drawing for the rotation direction of camshaft
Show the rotation direction of camshaft.
Embodiment
Fig. 1 schematically illustrates one embodiment according to inventive drive means.This drive device is especially used
In the motion of driving internal combustion engine cylinder valve rod.In this embodiment, described cylinder of internal-combustion engine refers in particular to the interior of motorcycle
Combustion engine cylinder.The characteristics of this cylinder is that compact conformation, installing space are small.
As shown in figure 1, in the present embodiment, drive device has a cam 1, cam 1 is arranged on actuated by cams axle 14
On.By other power set driving cam drive shafts 14, so as to be rotated with moving cam 1.Above-mentioned power dress is not shown in figure
Put.
It is a rocking arm 3 with the cooperating of cam 1.In the present embodiment, rocking arm 3 is the plate-like piece of a bar shaped.Shake
Arm 3 extends long in the horizontal direction in figure, and in the vertical direction is narrow.
As shown in FIG., the downside of rocking arm 3 is substantially straight, and its left end has downward projection of first work
Curved surface 8.The working curved surface 8 is in side view a curve.The radius of curvature of this curve can be according to specific engine
Design is determined.First working curved surface 8 mainly contacts with each other with the outer surface of cam 1, and in powered cylinder of internal-combustion engine valve
Tightly it is resisted against on cam 1 in the presence of the back-moving spring 16 of bar 15.
As shown in figure 1, being provided with the second working curved surface 9 on the opposite side (upside in figure) of rocking arm 3.First and second works
Make the curvature of the radius of curvature of curved surface 8,9 according to the working curved surface of matched cam 1 and the spigot surface of guiding bearings 8
Radius changes all in accordance with the stroke of the cylinder of internal-combustion engine valve rod of required control.
It can be seen that whole rocking arm 3 is supported on supporting shaft 7.And supporting shaft 7 itself can be with rocking arm
3 right and left together in figure is moved up.
As shown in figure 1, right-hand member of the rocking arm 3 in figure is resisted against the end of cylinder of internal-combustion engine valve rod 15, the second work of rocking arm 3
Make curved surface 9 to be pressed against on the spigot surface 10 of guiding bearings 5, and the first working curved surface 12 of rocking arm 3 is resisted against the cylindrical of cam 1
In perimeter surface.By the back-moving spring 16 of the cylinder of internal-combustion engine valve rod 15 shown in figure, rocking arm 3 is pressed into cam 1.Thus, make
Obtain cam 1 mutually to compress under any circumstance with rocking arm 3 and transmit driving force, i.e., when cam 1 is rotated, by rocking arm 3
The first working curved surface 8 cause rocking arm 3 follow the rotation of cam 1 and swing.
Rocking arm 3 has certain thickness, to meet the intensity needed for the power that transmission cam 1 is applied.On rocking arm 3
One working curved surface 8, the second working curved surface 9 and it is provided with transmitting required power with the end that cylinder of internal-combustion engine valve rod 15 is engaged
Necessary intensity and hardness.
As shown in figure 1, also including an actuator represented on the whole with drawing reference numeral 2 according to inventive drive means
Structure.The actuating mechanism 2 mainly includes a connecting rod 6, a crank 4 and a guiding bearings 5.
As shown in figure 1, the one end in left side of the crank 4 in figure is articulated and connected by connecting bearing pin 17 with crank 4.Crank 4
Rotatably supported by supporting shaft 13, wherein, the fixed bearing of supporting shaft 13 is on the engine or on other analogs.
In the present embodiment, the structure of crank 4 is employed, this is a kind of embodiment.According to the invention it is possible to
To complete the function of crank 4 using devices such as eccentric wheels.
As shown in figure 1, guiding bearings 5 are arranged on the top position in figure.That is, according to the present invention, being oriented to branch
Bearing member 5 is arranged on the valve stem 15 of motorcycle IC engine, is in contrast set.In the present embodiment, guided bearing
The working curved surface 10 of part 5 is downward, in face of the second working curved surface 9 of rocking arm 3.
It can further be seen from figure 1 that cam 1 is substantially arranged side by side with cylinder valve rod 15.It is this to be directed to supporting member 5
The structure that on rocking arm 3 and cam 1 is arranged side by side with cylinder valve rod 15 is arranged at, Cylinder of motorcycle installing space is met narrow and small
Requirement.
As shown in figure 1, the other end of connecting rod 6, i.e., right-hand member as depicted is hingedly connected on rocking arm 3 through supporting shaft 7.
As illustrated, when crank 4 is counterclockwise swung along along figure, the outer surface phase of the first working curved surface 8 and cam 1 of rocking arm 3
The left side that the point of contact is located at vertical line in figure forms an angle A, so as to form the preposition of air inlet and exhaust valve switch phase.It is this
Swinging just drivening rod 6, into figure, left side is mobile together, so as to be moved with motion rocker arm 3, finally make rocking arm 3 along shown in figure to the left
Move in direction.
At the same time, working curved surface 10 of the second working curved surface 9 of rocking arm 3 along guiding bearings 5 is moved, and is reached in figure
Shown D points.
As shown in Fig. 2 when crank 4 is swung along clockwise direction, so that the first working curved surface 8 and cam 1 of rocking arm 3
Contact point be placed exactly on plumb line.Now, in middle set configuration state.
At the same time, working curved surface 10 of the second working curved surface 9 of rocking arm 3 along guiding bearings 5 is moved, and is reached in figure
Shown E points.
As shown in figure 3, when crank 4 is swung again clockwise, now, the working curved surface 8 of rocking arm 3 first connects with cam 1
The right side that contact is located at plumb line in figure forms an angle B, so that air inlet and exhaust valve switch phase is rearmounted.
At the same time, working curved surface 10 of the second working curved surface 9 of rocking arm 3 along guiding bearings 5 is moved, and is reached in figure
Shown F points.
When left and right directions is moved rocking arm 3 along along figure, it is located at the work of the first working curved surface of left side 8 in Fig. 1 and cam 1
Make surface engagement work；And its second working curved surface 9 is then under the constraint of the working curved surface 10 of guiding bearings 5 along the curved surface
Motion.Therefore, the movement locus of the right-hand member (end being in contact with the upper end of cylinder of internal-combustion engine valve rod 15) of rocking arm 3 is by cam
The shape of the working curved surface 10 of 1 working surface shape, the working curved surface shape of rocking arm 3 first and guiding bearings 5 is determined together.
Thus the regulation that phase is opened and closed to internal combustion engine cylinder valve rod 15 is constituted.
In the present embodiment, guiding bearings 5 are an independent parts, and certain part can also be affiliated cylinder side
A part on edge.As long as supporting can be provided for the middle part of rocking arm 3.
Fig. 4 represents to be in preposition working condition according to inventive drive means.
According to the present invention in put, preposition and rear configuration state is all to start opening/closing time to cylinder of internal-combustion engine intake and exhaust valve
The adjustment state of point, i.e., in the state of difference, will be opened and closed intake and exhaust valve at different time points.
According to another specific embodiments (not shown in FIG.) of the present invention, guiding bearings 5 are provided with a groove,
The working curved surface 10 of the guiding bearings 5 is the bottom of this groove.So, rocking arm 3 is embedded in this groove, and its rocking arm 3
The second working curved surface 9 or roller 12 contacted in this groove with the working curved surface 10 of guiding bearings 5.This embodiment
Advantage be that rocking arm 3 or its roller 12 are located in described groove, therefore during work, more stablize.
Claims (7)
1. a kind of valve actuator of internal combustion engine, including cam (1), are driven by cam (1) and are supported on the first supporting shaft
(7) rocking arm (3) on, it is characterised in that also including the actuating mechanism (2) for adjusting rocking arm (3) position；
The actuating mechanism (2) includes at least one connecting rod (6), and its one end passes through in the first supporting shaft (7) and rocking arm (3)
Portion is articulated and connected；Crank (4), the other end and the crank (4) of the connecting rod (6) are articulated and connected, the other end hinge of the crank (4)
Connect and be supported on the second supporting shaft (13)；Guiding bearings (5), guiding bearings (5) have a working curved surface (10)；It is described
Connecting rod (6) is movably supported on guiding bearings (5) with the part that the rocking arm (3) is hingedly connected to one another,
The rocking arm (3) includes the first working curved surface (8) and the second working curved surface (9), and first working curved surface (8) is resisted against
On the outer surface (11) of cam (1), second working curved surface (9) abuts slidably against the work song in guiding bearings (5)
On face (10).
2. the valve actuator of internal combustion engine according to claim 1, it is characterised in that rocking arm (3) also includes roller
(12), the roller (12) be rotatably supported on the first supporting shaft (7) and can guiding bearings (5) work
Curved surface (10) is rolled.
3. the valve actuator of internal combustion engine according to claim 1, it is characterised in that the guiding bearings (5)
Working curved surface (10) is a curved surface caved inward.
4. the valve actuator of internal combustion engine according to claim 2, it is characterised in that the guiding bearings (5)
Working curved surface (10) is a curved surface caved inward.
5. the valve actuator of internal combustion engine according to claim 3, it is characterised in that the curved surface of the depression is located at one
In bar groove, so that rocking arm (3) can be moved in the groove.
6. the valve actuator of internal combustion engine according to claim 3, it is characterised in that the curved surface of the depression is located at one
In bar groove, so that roller (12) can be moved in the groove.
7. the valve actuator of the internal combustion engine according to any one of claim 3~6, it is characterised in that cam phase
For rocking arm be arranged on air inlet and exhaust valve identical side, guiding bearings are arranged on opposite with air inlet and exhaust valve relative to rocking arm
Side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910203451.4A CN102061956B (en) | 2009-05-21 | 2009-05-21 | drive device |
| PCT/CN2010/072986 WO2010133170A1 (en) | 2009-05-21 | 2010-05-20 | Valve drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910203451.4A CN102061956B (en) | 2009-05-21 | 2009-05-21 | drive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102061956A CN102061956A (en) | 2011-05-18 |
| CN102061956B true CN102061956B (en) | 2017-08-25 |
Family
ID=43125745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910203451.4A Active CN102061956B (en) | 2009-05-21 | 2009-05-21 | drive device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102061956B (en) |
| WO (1) | WO2010133170A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787879B (en) * | 2012-07-27 | 2015-12-02 | 长城汽车股份有限公司 | A kind of engine air distribution system valve lift continuous variable mechanism |
| CN104832236B (en) * | 2014-12-18 | 2017-04-05 | 北汽福田汽车股份有限公司 | Engine valve pre-operation device |
| CN104895635B (en) * | 2015-03-09 | 2018-02-16 | 常州嵘驰发动机技术有限公司 | Air inlet valve and air outlet valve of internal combustion engine drive device |
| CN105716980A (en) * | 2016-03-24 | 2016-06-29 | 华南理工大学 | Rocker arm type valve wear test device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE348023C (en) * | 1919-05-04 | 1922-02-01 | Ernst Muschinsky | Device for regulating the stroke of the mixture inlet valves of multi-cylinder internal combustion engines |
| DE892695C (en) * | 1950-01-14 | 1955-08-16 | Daimler Benz Ag | Device for automatically eliminating valve clearance, especially on internal combustion engines |
| US5456224A (en) * | 1991-12-03 | 1995-10-10 | Motive Holdings Limited | Variable valve lift mechanism for internal combustion engine |
| US6446589B1 (en) * | 2001-01-16 | 2002-09-10 | Chinh T. Nguyen | Cam actuated continuous simultaneously variable valve timing and lifting assembly |
| EP1361344A2 (en) * | 2002-05-07 | 2003-11-12 | IVECO FIAT S.p.A. | A valve-actuating system for an exhaust gas recirculation system of an internal-combustion engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20220138U1 (en) * | 2002-12-20 | 2004-04-29 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Valve train with cams for variable actuation of valves for internal combustion engines |
| JP2005140026A (en) * | 2003-11-07 | 2005-06-02 | Honda Motor Co Ltd | Engine valve system |
| ATE405728T1 (en) * | 2005-06-17 | 2008-09-15 | Iav Gmbh | VALVE DRIVE FOR INTERNAL COMBUSTION ENGINES |
| CN100425805C (en) * | 2006-06-02 | 2008-10-15 | 李明 | Engine valve driving device |
| JP2009091943A (en) * | 2007-10-05 | 2009-04-30 | Honda Motor Co Ltd | Valve opening characteristic variable type internal combustion engine |
-
2009
- 2009-05-21 CN CN200910203451.4A patent/CN102061956B/en active Active
-
2010
- 2010-05-20 WO PCT/CN2010/072986 patent/WO2010133170A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE348023C (en) * | 1919-05-04 | 1922-02-01 | Ernst Muschinsky | Device for regulating the stroke of the mixture inlet valves of multi-cylinder internal combustion engines |
| DE892695C (en) * | 1950-01-14 | 1955-08-16 | Daimler Benz Ag | Device for automatically eliminating valve clearance, especially on internal combustion engines |
| US5456224A (en) * | 1991-12-03 | 1995-10-10 | Motive Holdings Limited | Variable valve lift mechanism for internal combustion engine |
| US6446589B1 (en) * | 2001-01-16 | 2002-09-10 | Chinh T. Nguyen | Cam actuated continuous simultaneously variable valve timing and lifting assembly |
| EP1361344A2 (en) * | 2002-05-07 | 2003-11-12 | IVECO FIAT S.p.A. | A valve-actuating system for an exhaust gas recirculation system of an internal-combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102061956A (en) | 2011-05-18 |
| WO2010133170A1 (en) | 2010-11-25 |
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Address after: 812, room 213, 213023 ERON Road, bell tower area, Changzhou, Jiangsu Applicant after: Yang Luchuan Address before: 213023 Jiangsu city of Changzhou province Ruixi Zhonglou District King City 1 room 1503 a unit Applicant before: Yang Luchuan |
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