CN102061956A - Driving device - Google Patents
Driving device Download PDFInfo
- Publication number
- CN102061956A CN102061956A CN2009102034514A CN200910203451A CN102061956A CN 102061956 A CN102061956 A CN 102061956A CN 2009102034514 A CN2009102034514 A CN 2009102034514A CN 200910203451 A CN200910203451 A CN 200910203451A CN 102061956 A CN102061956 A CN 102061956A
- Authority
- CN
- China
- Prior art keywords
- rocking arm
- curved surface
- cam
- working curved
- drive unit
- 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.)
- Granted
Links
Images
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
-
- 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
-
- 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 invention provides a driving device. The driving device comprises a cam and a rocker arm, and also comprises an actuating mechanism, wherein the rocker arm is driven by the cam and is supported on a supporting shaft; the actuating mechanism is used for adjusting the position of the rocker arm and comprises at least one connecting rod, a crank and a guide supporting piece, wherein one end of the connecting rod is hinged with the middle part of the rocker arm through a supporting pin shaft; the other end of the connecting rod is hinged with the crank; the other end of the crank is hinged and supported to the supporting pin shaft; the guide supporting piece is provided with a work curved surface; and the part where the connecting rod and the rocker arm are hinged with each other is supported on the guide supporting piece movably. Because of increasing the adjustment of the opening stroke of a suction and exhaust valve of an air cylinder of an internal combustion engine by the actuating mechanism, the driving device has high capacity of adjusting the opening of the suction and exhaust valve. Because the stroke of the valve depends on the lift range of the cam and the structural parameter lever ratio (L2/L1) of the rocker arm, so the characteristic of changing the lift range of the valve is achieved by adjusting cam lift range curve parameters and rocker arm structural parameters.
Description
Technical field
The present invention relates to a kind of drive unit, particularly a kind of drive unit that is used for the air inlet valve and air outlet valve of internal combustion engine open and close is in particular for the drive unit of motorcycle and the open and close of minicar air inlet valve and air outlet valve of internal combustion engine.
Background technique
European patent EP 1672183A1 discloses a kind of rocking arm that is used to force the control valve device.Wherein, an end of rocking arm is connected with a regulating device, thereby the part of this regulating device can the protruding position of adjusting this end of rocking arm.Be provided with a rocker-arm roller at the middle part of rocking arm, the axle of this roller is connected with the supporting axle of roller on being coated on the cam excircle by a link.But this pressure control gear is restricted for the adjustment of the opening travel of valve, promptly can not significantly adjust the stroke of valve.Simultaneously, this device can not be adjusted the switching phase place of valve.
A kind of device that is used for the controlling combustion engine air inlet and exhaust valve is disclosed among the Japanese kokai publication hei 5-98913.Comprising a rocking arm, an end of rocking arm links to each other with an end of air inlet and exhaust valve push rod, and the other end is connected with the piston rod of a hydraulic pressure cylinder.The middle part of rocking arm also is provided with a roller.The deficiency of this device is that the variation that its adjusting to air inlet and exhaust valve switching phase place and stroke can only be passed through the radius of curvature of each point on the cam external peripheral surface realizes, causes the amplitude of accommodation to be restricted thus.
A kind of device that is used for the controlling combustion engine air inlet and exhaust valve is disclosed among the Japanese kokai publication hei 9-21305.Wherein also be to have adopted rocking arm and roller has been set at the middle part of rocking arm.But the shortcoming of this device is the same with above-mentioned shortcoming of the prior art, all is to do bigger adjustment to the switching phase place and the stroke of air inlet and exhaust valve, can not adjust accurately it.
Summary of the invention
The object of the present invention is to provide a kind of drive unit, so that the switching phase place and the opening travel of cylinder of internal-combustion engine air inlet and exhaust valve provided more accurate, forms bigger adjustment.This drive unit is particularly useful for being arranged in the space of the narrow and small valve cages of mini engine such as motorcycle, and the switching phase place of its suction valve and switching path are provided more accurate, form bigger adjustment.Particularly can in the coaxial mounted distribution device of intake and exhaust cam axle, realize regulating continuously the switch phase of air inlet and exhaust valve and the function of opening travel.
For achieving the above object,, comprise cam, by cam drive and be bearing in rocking arm on the supporting axle, also comprise the actuating mechanism that is used to adjust the rocking arm position according to the invention provides a kind of drive unit.
According to the present invention, described actuating mechanism comprises at least one connecting rod, and the one end is articulated and connected by the middle part of supporting shaft and rocking arm; Crank, the other end and the crank of described connecting rod are articulated and connected, and the other end hinged support of described crank is at supporting shaft; Guided bearing spare, guided bearing spare have a working curved surface; Described connecting rod and the described rocking arm part that is connected that is hinged is bearing on the guided bearing spare movably.
Described rocking arm comprises first working curved surface and second working curved surface, and described first working curved surface is resisted against on the outer surface of cam, and described second working curved surface is resisted against on the working curved surface of guided bearing spare slidably.
Rocking arm also comprises roller, and described roller is rotatably supported on the supporting shaft and can rolls at the working curved surface of guided bearing spare.
The working curved surface of described guided bearing spare is a curved surface that caves inward, and the curved surface of described depression is arranged in a groove, thereby makes rocking arm or roller to move in described groove.
Cam is arranged on a side identical with air inlet and exhaust valve with respect to rocking arm, and guided bearing spare is arranged on a side opposite with air inlet and exhaust valve with respect to rocking arm.
Because drive unit according to the present invention has increased adjusting to the opening travel of cylinder of internal-combustion engine air inlet and exhaust valve by actuating mechanism, therefore with not have the drive unit of actuating mechanism to compare to have that air inlet and exhaust valve is opened regulating power bigger in the prior art; Because the stroke of valve is by structural parameter lever ratio (L2/L1) decision of the lift of cam and rocking arm, thus can by adjust the cam lifting curve parameter, the rocker structure parameter reach the purpose that changes the valve lift characteristic.In addition, owing to adopted the rocking arm middle part, can the switch phase and the opening travel of air inlet valve and air outlet valve of internal combustion engine be carried out precisely, significantly adjusts and control by the working method that the guide surface on working curved surface or roller and the guided bearing spare cooperatively interacts and moves.The more important thing is that the guide surface of guided bearing spare is a curved surface,, can reach the effect that the switching phase place and the opening travel of air inlet and exhaust valve are done flexible and changeable adjustment by adjustment and setting to the radius of curvature of each point on this curved surface.This be prior art can not.
Because drive unit according to the present invention is installed in a side opposite with valve and camshaft with respect to rocking arm with guided bearing spare, therefore, the motor that camshaft and valve are positioned at the motor of the same side and have only a camshaft (the intake and exhaust cam axle is an one) with respect to rocking arm, also can be under the situation of not changing the gas distribution system layout, use the present invention, thereby realize the function of continuous regulating valve switch phase and opening travel, and can not increase the volume of drive unit.
Since can continue to use the existing structure of motor when use is of the present invention substantially, less to the structural modification of motor, so the cost of cost is less when utilizing the present invention that motor is transformed.
Because organization plan of the present invention is with respect to the existing structure of this class motor, only increased a guided bearing spare and be used to drive crank and the connecting rod of rocking arm motion to reach regulating valve switch phase and lift, do not need to increase big structure space, can not cause structure huge, so the present invention can be applied to only have the mini engine between smaller engine air, as the motor of motorcycle and minicar.
Because to-and-fro motion and camshaft that the actuating mechanism that the present invention increases is guided bearing spare, crank and connecting rod does not participate in valve system rotatablely move, therefore can not increase the movement inertia of valve system and the rotary inertia of cam shaft system, like this, even increased native system, thereby also can not cause the movement inertia of valve system and the rotary inertia increase of cam shaft system to cause flying off and bouncing of valve, and can not increase the burden of timing train.Therefore, use the present invention, need not to change the existing design parameter of engine valve door system, cam shaft system and timing train, thereby can save development cost.
In a preferred embodiment according to the present invention, change the sliding friction in the actuating mechanism into rolling, it is had a few and effect is very tangible.Rolling friction makes that the motion of whole drive unit is smooth and easy more flexibly, thereby has improved the functional reliability and the stability of device.Simultaneously, also reduced energy consumption.
Device according to the present invention is arranged on combustion chambers of internal combustion engines valve valve rod one side with cam, and guided bearing spare is oppositely arranged with it.In this set, guided bearing spare and cylinder valve rod are oppositely arranged, and cam then is arranged at cylinder valve rod one side, and such that mini engine volumes such as fully having adapted to motorcycle is set is little, the characteristics that installing space is little.
Description of drawings
Fig. 1 is in the schematic representation of opening working state for expression drives the cylinder of internal-combustion engine valve rod according to drive unit of the present invention;
Fig. 2 is in the schematic representation of mid-working state for expression drive unit according to the present invention;
Fig. 3 is in the schematic representation of rearmounted working state for expression drive unit according to the present invention;
Fig. 4 is in the schematic representation of preposition working state for expression drive unit according to the present invention.
Preposition or back configuration state described in the present invention is the sense of rotation at camshaft, and arrow is represented the sense of rotation of camshaft in each accompanying drawing.
Embodiment
Fig. 1 has schematically shown an embodiment according to drive unit of the present invention.This drive unit is in particular for driving the motion of cylinder of internal-combustion engine valve rod.In this embodiment, described cylinder of internal-combustion engine refers in particular to the cylinder of internal-combustion engine of motorcycle.The characteristics of this cylinder are that compact structure, installing space are little.
As shown in Figure 1, in the present embodiment, drive unit has a cam 1, and cam 1 is installed on the cam drive axle 14.By other power plant driving cam live axles 14, rotate thereby drive cam 1.Above-mentioned power plant are not shown among the figure.
With cam 1 cooperating be a rocking arm 3.In the present embodiment, rocking arm 3 is plate-like pieces of a bar shaped.Extend longly on rocking arm 3 substantially horizontal in the drawings, and in the vertical direction is narrow.
As shown in FIG., the downside of rocking arm 3 is straight basically, and its left end has the first outstanding working curved surface 8 downwards.This working curved surface 8 is a curve in side view.The radius of curvature of this curve can be determined according to concrete engine design.First working curved surface 8 mainly is that the outer surface with cam 1 is in contact with one another, and is resisted against tightly on the cam 1 under the effect of the Returnning spring 16 of driven cylinder of internal-combustion engine valve rod 15.
As shown in Figure 1, on the opposite side (upside among the figure) of rocking arm 3, be provided with second working curved surface 9.The radius of curvature of first and second working curved surfaces 8,9 all changes according to the stroke of the cylinder of internal-combustion engine valve rod of required control according to the radius of curvature of the guide surface of the working curved surface of the cam 1 that cooperates with it and guided bearing spare 8.
As can be seen from the figure, whole rocking arm 3 is bearing on the supporting shaft 7.And supporting shaft 7 itself can move up along with rocking arm 3 in the drawings right and left together.
As shown in Figure 1, rocking arm 3 right-hand member in the drawings is resisted against the end of cylinder of internal-combustion engine valve rod 15, and second working curved surface 9 of rocking arm 3 is pressed against on the guide surface 10 of guided bearing spare 5, and first working curved surface 12 of rocking arm 3 is resisted against on the external peripheral surface of cam 1.By the Returnning spring 16 of the cylinder of internal-combustion engine valve rod 15 shown in the figure, rocking arm 3 is pressed to cam 1.Thus, make cam 1 and rocking arm 3 under any circumstance compress mutually and transmission of drive force, promptly when cam 1 rotates, swing by the rotation that first working curved surface 8 on the rocking arm 3 makes rocking arm 3 follow cam 1.
Rocking arm 3 has certain thickness, transmits the required intensity of power that cam 1 is applied so that satisfy.First working curved surface 8, second working curved surface 9 on the rocking arm 3 and the end of matching with cylinder of internal-combustion engine valve rod 15 all possess necessary intensity and the hardness of the required drive of transmission.
As shown in Figure 1, also comprise an actuating mechanism of representing with drawing reference numeral 2 on the whole according to drive unit of the present invention.This actuating mechanism 2 mainly comprises a connecting rod 6, a crank 4 and a guided bearing spare 5.
As shown in Figure 1, an end in crank 4 left side in the drawings is articulated and connected with crank 4 by connecting bearing pin 17.Crank 4 is by supporting shaft 13 rotatably supports, and wherein, supporting shaft 13 is fixedly supported upon on the motor or on other analogs.
In the present embodiment, adopted the structure of crank 4, this is a kind of embodiment.According to the present invention, also can adopt the function of finishing crank 4 such as devices such as eccentric wheels.
As shown in Figure 1, guided bearing spare 5 setting top positions in the drawings.That is to say that according to the present invention, guided bearing spare 5 is arranged on the valve valve rod 15 of motorcycle IC engine, relatively be provided with it.In the present embodiment, the working curved surface 10 of guided bearing spare 5 is downward, in the face of second working curved surface 9 of rocking arm 3.
It can also be seen that from Fig. 1 cam 1 is arranged side by side basically with cylinder valve rod 15.Thisly be arranged at guided bearing spare 5 on the rocking arm 3 and cam 1 and the structure that cylinder valve rod 15 is arranged side by side, satisfied the narrow and small requirement of Cylinder of motorcycle installing space.
As shown in Figure 1, the other end of connecting rod 6, promptly right-hand member as shown in the figure is articulated and connected on rocking arm 3 through supporting shaft 7.As shown in the figure, when crank 4 was counterclockwise swung in figure, first working curved surface 8 of rocking arm 3 formed an angle A with the left side that the contacted point of outer surface of cam 1 is arranged in the figure vertical line, thereby forms the preposition of air inlet and exhaust valve switch phase.This swing just drivening rod 6 together in figure the left side move, thereby drive rocking arm 3 motions, finally make rocking arm 3 along shown in the figure left direction move.
Meanwhile, second working curved surface 9 of rocking arm 3 moves along the working curved surface 10 of guided bearing spare 5, arrives D point shown in the figure.
As shown in Figure 2, when crank 4 is swung along clockwise direction, thereby make first working curved surface 8 of rocking arm 3 and the point of contact of cam 1 just in time be positioned on the vertical line.At this moment, be in mid-location status.
Meanwhile, second working curved surface 9 of rocking arm 3 moves along the working curved surface 10 of guided bearing spare 5, arrives E point shown in the figure.
As shown in Figure 3, when crank 4 clockwise directions were swung again, at this moment, rocking arm 3 first working curved surfaces 8 were arranged in angle B of right side formation of figure vertical line with the point of contact of cam 1, thereby make air inlet and exhaust valve switch phase postposition.
Meanwhile, second working curved surface 9 of rocking arm 3 moves along the working curved surface 10 of guided bearing spare 5, arrives F point shown in the figure.
When left and right directions moved in figure, it was arranged in left side first working curved surface 8 of Fig. 1 and the working surface cooperating of cam 1 at rocking arm 3; Its second working curved surface 9 then under the constraint of the working curved surface 10 of guided bearing spare 5 along this non-plane motion.Therefore, the movement locus of the right-hand member of rocking arm 3 (promptly with contacted end, the upper end of cylinder of internal-combustion engine valve rod 15) is determined by the shape of the working curved surface 10 of working surface shape, rocking arm 3 first working curved surface shapes and the guided bearing spare 5 of cam 1.Constitute the adjusting that internal-combustion engine cylinder valve rod 15 is opened and closed phase place thus.
In the present embodiment, guided bearing spare 5 is independently parts, and this part also can be the part on the affiliated cylinder edge certainly.As long as can provide supporting for the middle part of rocking arm 3.
Fig. 4 represents that drive unit according to the present invention is in preposition working state.
Mid-, preposition and back configuration state according to the present invention all is the adjustment state that cylinder of internal-combustion engine intake and exhaust valve is begun to open and close time point, promptly under different states, will open and close the intake and exhaust valve at different time points.
According to another specific embodiments of the present invention (not illustrating among the figure), guided bearing spare 5 is provided with a groove, and the working curved surface 10 of described guided bearing spare 5 is ends of this groove.Like this, rocking arm 3 is embedded in this groove, and second working curved surface 9 of its rocking arm 3 or roller 12 contact with the working curved surface 10 of guided bearing spare 5 in this groove.The advantage of this mode of execution is that rocking arm 3 or its roller 12 are arranged in described groove, and is therefore in the process of work, more stable.
Claims (7)
1. a drive unit comprises cam (1), drives and be bearing in rocking arm (3) on the supporting axle (7) by cam (1), it is characterized in that, also comprises the actuating mechanism (2) that is used to adjust rocking arm (3) position.
2. drive unit according to claim 1 is characterized in that, described actuating mechanism (2) comprises at least one connecting rod (6), and the one end is articulated and connected by the middle part of supporting shaft (7) with rocking arm (3); Crank (4), the other end of described connecting rod (6) and crank (4) are articulated and connected, and the other end hinged support of described crank (4) is in supporting shaft (13); Guided bearing spare (5), guided bearing spare (5) has a working curved surface (10); Described connecting rod (6) and described rocking arm (3) part that is connected that is hinged is bearing on the guided bearing spare (5) movably.
3. drive unit according to claim 1 and 2, it is characterized in that, described rocking arm (3) comprises first working curved surface (8) and second working curved surface (9), described first working curved surface (8) is resisted against on the outer surface (11) of cam (1), and described second working curved surface (9) is resisted against on the working curved surface (10) of guided bearing spare (5) slidably.
4. drive unit according to claim 3 is characterized in that, rocking arm (3) also comprises roller (12), and described roller (12) is rotatably supported on the supporting shaft (7) and can rolls at the working curved surface (10) of guided bearing spare (5).
5. according to the described drive unit of one of claim 1 to 4, it is characterized in that the working curved surface (10) of described guided bearing spare (5) is a curved surface that caves inward.
6. drive unit according to claim 5 is characterized in that, the curved surface of described depression is arranged in a groove, thereby makes rocking arm (3) or roller (12) to move in described groove.
7. according to claim 5 or 6 described drive units, it is characterized in that cam is arranged on a side identical with air inlet and exhaust valve with respect to rocking arm, guided bearing spare is arranged on a side opposite with air inlet and exhaust valve with respect to rocking arm.
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 true CN102061956A (en) | 2011-05-18 |
| CN102061956B 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) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787879A (en) * | 2012-07-27 | 2012-11-21 | 长城汽车股份有限公司 | Valve lift continuous variable mechanism of engine gas distribution system |
| CN104832236A (en) * | 2014-12-18 | 2015-08-12 | 北汽福田汽车股份有限公司 | Engine valve pre-operation apparatus |
| CN104895635A (en) * | 2015-03-09 | 2015-09-09 | 常州嵘驰发动机技术有限公司 | Intake and vent valve driving device of internal combustion engine |
| CN105716980A (en) * | 2016-03-24 | 2016-06-29 | 华南理工大学 | Rocker arm type valve wear test device |
Family Cites Families (10)
| 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 |
| 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 |
| US6446589B1 (en) * | 2001-01-16 | 2002-09-10 | Chinh T. Nguyen | Cam actuated continuous simultaneously variable valve timing and lifting assembly |
| ITTO20020377A1 (en) * | 2002-05-07 | 2003-11-07 | Iveco Motorenforschung Ag | VALVE ACTUATION SYSTEM FOR INTERNAL COMBUSTION ENGINE EXHAUST RECIRCULATION SYSTEM. |
| 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
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787879A (en) * | 2012-07-27 | 2012-11-21 | 长城汽车股份有限公司 | Valve lift continuous variable mechanism of engine gas distribution system |
| CN104832236A (en) * | 2014-12-18 | 2015-08-12 | 北汽福田汽车股份有限公司 | Engine valve pre-operation apparatus |
| CN104895635A (en) * | 2015-03-09 | 2015-09-09 | 常州嵘驰发动机技术有限公司 | Intake and vent valve driving device of internal combustion engine |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010133170A1 (en) | 2010-11-25 |
| CN102061956B (en) | 2017-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101429882B (en) | Continuous variable air valve lift apparatus | |
| CN101858233B (en) | Comprise full Variable Valve Time method and the mechanism of speed-changing swing mechanism | |
| CN103161543A (en) | Driving device, combustion motor with the same and vehicle using the combustion motor | |
| JP2004520522A (en) | Fully variable mechanical valve train for piston internal combustion engines | |
| CN201554510U (en) | Driving device | |
| CN110295967A (en) | Continuous variable air valve lift apparatus | |
| CN102061956A (en) | Driving device | |
| CN210087426U (en) | Valve lift device with valve lift and valve opening time simultaneously variable | |
| CN102705027A (en) | Valve stroke variable adjusting system | |
| CN210068258U (en) | Continuous variable valve lift device | |
| KR101221111B1 (en) | Valve train for internal combustion engines | |
| CN100472037C (en) | Variable valve apparatus of internal combustion engine | |
| US8079334B2 (en) | Continuously variable valve actuation system | |
| US8251026B2 (en) | Variable valve actuator | |
| CN101782005B (en) | Drive device | |
| CN110173320A (en) | The valve lift apparatus that valve stroke and valve opening time can be changed simultaneously | |
| CN102966391B (en) | Swinging arm mechanism controlled by using double cams | |
| CN101922325A (en) | Driving device | |
| CN201679524U (en) | Driving device | |
| CN201507331U (en) | Driver | |
| CN201396195Y (en) | Driving device | |
| CN202596828U (en) | Drive device, internal combustion engine having the drive device and vehicle having the internal combustion engine | |
| US8402932B2 (en) | Continuously variable valve actuation system | |
| CN101333968A (en) | Device of engine for continuously changing air valve phase | |
| KR101333046B1 (en) | Continuously variable valve actuation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
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 |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |