CN107503818A - Valve assembly, engine and automobile - Google Patents
Valve assembly, engine and automobile Download PDFInfo
- Publication number
- CN107503818A CN107503818A CN201710445201.6A CN201710445201A CN107503818A CN 107503818 A CN107503818 A CN 107503818A CN 201710445201 A CN201710445201 A CN 201710445201A CN 107503818 A CN107503818 A CN 107503818A
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- China
- Prior art keywords
- cam
- valve
- adjustment mechanism
- valve assembly
- plane
- 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
Abstract
The invention provides a kind of valve assembly, engine and automobile, wherein, valve assembly includes：Valve；Cam, is arranged on the top of valve, can drive valve reciprocation during cam rotation；Adjustment mechanism, be arranged between valve and cam, and valve and cam abut setting with adjustment mechanism, adjustment mechanism towards the surface of valve and/or adjustment mechanism towards the surface of cam on be provided with inclined-plane, valve and/or cam setting abutted with inclined-plane；Drive mechanism, coordinate with adjustment mechanism, drive mechanism drives adjustment mechanism movement to change the position of valve and/or cam on inclined-plane, so as to change the distance between valve and cam.Technical scheme solves the problems, such as that lift variable valve timing structure of the prior art is complex.
Description
Technical field
The present invention relates to vehicle arrangement field, in particular to a kind of valve assembly, engine and automobile.
Background technology
Countries in the world Abgasgesetz day is increasingly tight at present, and market faces to oil consumption emission request etc. as modern automobile industry
Key issue.Conventional engine valve structure is as shown in figure 1, wherein, cam is single molded line, therefore valve stroke is single
State.Said structure causes engine air inflow in whole service condition range to be mismatched with aequum under the operating mode, makes hair
Motivation power performance and the economy performance is not optimum state.
According to this problem, in the market partial engine employs the variable air valve structure of lift, specific as follows：
One kind is two-stage variable air valve lift range mechanism.Wherein, two kinds of molded line are provided with cam above valve, it is convex by making
Wheel, which is axially moveable, causes different molded line to coordinate with valve, and then realizes the lift control of valve.But said structure only office
It is limited to two kinds of work condition states of high, low speed to switch over, it is necessary to which increasing multiple mechanisms carries out corresponding control, arrangement space demand is big,
The difficulty such as component assembly, calibration strategy, cost control are big.
Another kind is continuous variable valve lift mechanism.Said structure includes cam and the adjustment being arranged on above cam
Mechanism.Said structure can complete variable lift control, specifically, by hydraulic support element, change its height, or increase sky
Between transition rocker arm, change its posture, to reach the control function of continuous variable.But above-mentioned controlling organization and its complexity, it is internal
Mechanism assembling, element precision, motion control etc. require high, and system stiffness is poor, the versatility and arrangement platform of different type of machines
The realizability of change is relatively low.
The content of the invention
It is of the prior art to solve it is a primary object of the present invention to provide a kind of valve assembly, engine and automobile
The problem of lift variable valve timing structure is complex.
To achieve these goals, according to an aspect of the invention, there is provided a kind of valve assembly, including：Valve；It is convex
Wheel, is arranged on the top of valve, can drive valve reciprocation during cam rotation；Adjustment mechanism, it is arranged on valve and cam
Between, and valve and cam abut setting with adjustment mechanism, and adjustment mechanism is towards the surface of valve and/or adjustment mechanism court
Inclined-plane, valve and/or cam are provided with to the surface of cam, and setting is abutted with inclined-plane；Drive mechanism, coordinate with adjustment mechanism,
Drive mechanism drives adjustment mechanism movement to change the position of valve and/or cam on inclined-plane, so as to change valve and cam
The distance between.
Further, the central axis of the bearing of trend on inclined-plane and cam is set.
Further, adjustment mechanism is sliding block, and inclined-plane is arranged on the surface towards cam of sliding block.
Further, the surface towards cam of sliding block is provided with holding tank, and the lower end of cam is embedded in holding tank, holds
Receive groove bottom wall formed inclined-plane.
Further, drive mechanism is motor, and gear drive is provided between drive mechanism and adjustment mechanism.
Further, gear drive includes：Worm gear, it is set in outside the motor shaft of motor；Worm screw, it is arranged on tune
On complete machine structure, worm and wheel engagement.
Further, the first connecting hole is provided with adjustment mechanism, the second connecting hole is provided with worm screw, valve assembly is also
Including the connector being located in the first connecting hole and the second connecting hole；Or valve assembly also includes elastic connection structure, bullet
The both ends of property attachment structure are connected with adjustment mechanism and worm screw respectively.
Further, valve assembly also includes：Elastic hold-down mechanism, elastic hold-down mechanism coordinate with adjustment mechanism, elasticity
Hold-down mechanism applies the elastic force towards cam direction to sliding block, so that cam and inclined-plane abutting contact.
According to another aspect of the present invention, there is provided a kind of engine, including valve assembly, valve assembly are above-mentioned gas
Door component.
According to another aspect of the present invention, there is provided a kind of automobile, including engine, engine are above-mentioned engine.
Apply the technical scheme of the present invention, increase adjustment mechanism between valve and cam, adjusted and adjusted by drive mechanism
The position of complete machine structure so that valve and/or cam are on the diverse location on inclined-plane, and then change between valve and cam away from
From so as to reach the purpose of adjustment valve stroke.Said mechanism is simple in construction, can realize the stepless lift regulation of valve, because
This technical scheme solves the problems, such as that lift variable valve timing structure of the prior art is complex.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of air valve structure in the prior art；
Fig. 2 shows the structural representation of the embodiment one of the valve assembly according to the present invention.
Fig. 3 shows the decomposing schematic representation of valve assembly in Fig. 2；
Fig. 4 shows the structural representation of the adjustment mechanism of valve assembly in Fig. 2；And
Fig. 5 shows the structural representation of the embodiment two of the valve assembly according to the present invention.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, valve；11st, swing arm；12nd, valve stem；20th, cam；30th, adjustment mechanism；31st, inclined-plane；32nd, holding tank；33rd,
One connecting hole；40th, drive mechanism；50th, gear drive；51st, worm gear；52nd, worm screw；521st, the second connecting hole；60th, elasticity pressure
Tight mechanism；70th, elastic connection structure.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the application and its application or makes
Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the application protection.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As shown in Figures 2 to 4, the valve assembly of embodiment one includes valve 10, cam 20, adjustment mechanism 30 and driving machine
Structure 40.Wherein, cam 20 is arranged on the top of valve 10, and cam 20 can drive valve 10 to move back and forth when rotating.Adjustment machine
Structure 30 is arranged between valve 10 and cam 20, and valve 10 and cam 20 abut setting with adjustment mechanism 30, adjusts machine
Structure 30 towards the surface of valve 10 and/or adjustment mechanism 30 towards the surface of cam 20 on be provided with inclined-plane 31.Valve 10 and/or
Cam 20 abuts setting with inclined-plane 31.Drive mechanism 40 coordinates with adjustment mechanism 30, and drive mechanism 40 drives adjustment mechanism 30 to move
Move to change the position of valve 10 and/or cam 20 on inclined-plane 31, so as to change the distance between valve 10 and cam 20.
The technical scheme of Application Example one, increase adjustment mechanism 30 between valve 10 and cam 20, pass through driving machine
Structure 40 adjusts the position of adjustment mechanism 30 so that valve 10 and/or cam 20 are on the diverse location on inclined-plane 31, and then are changed
The distance between valve 10 and cam 20, so as to reach the purpose of the adjustment lift of valve 10.Said mechanism is simple in construction, Neng Goushi
The stepless lift regulation of existing valve, therefore the technical scheme of embodiment one solves lift variable valve timing structure of the prior art
The problem of complex.
As shown in Fig. 2 in the technical scheme of embodiment one, the bearing of trend on inclined-plane 31 and the central axis of cam 20
Set.That is, when adjustment mechanism 30 moves, direction of the inclined-plane 31 along the center line perpendicular to cam 20 moves, from
And cam 20 may be on the different height position on inclined-plane 31.Further, it will be understood by those skilled in the art that working as
When cam 20 is located at lower position (namely the position in Fig. 4) on inclined-plane 31, the distance between cam 20 and valve 10 more connect
Closely.On the contrary, when cam 20 is located at the higher position on inclined-plane 31, the distance between cam 20 and valve 10 are farther out.By upper
The process of stating realizes the purpose of the lift of regulation valve 10.
As shown in figure 3, in the technical scheme of embodiment one, adjustment mechanism 30 is sliding block, and inclined-plane 31 is arranged on sliding block
Towards on the surface of cam 20.Specifically, the substantially rectangular in cross section structure of sliding block, inclined-plane 31 are arranged on the upper surface of sliding block, and
The bearing of trend on inclined-plane 31 is identical with the long side direction of sliding block.From fig. 4 it can be seen that the lower end of cam 20 abuts with inclined-plane 31,
Valve 10 abuts setting with the lower surface of sliding block.When sliding block edge moves perpendicular to the axis direction of cam 20, cam 20
Position on inclined-plane can also change, so as to reach the purpose of the generation of adjustment valve 10.
Certainly, inclined-plane 31 is not limited to be provided only on the upper surface of sliding block.It will be understood by those skilled in the art that inclined-plane
31 can also be arranged on the lower surface of sliding block, and now valve 10 abuts cooperation with inclined-plane 31.Or can also be on inclined-plane 31
Upper and lower surface is respectively provided with inclined-plane 31, and now, the incline direction on two inclined-planes 31 should be opposite.
As shown in figure 4, in the technical scheme of embodiment one, the surface towards cam 20 of sliding block is provided with holding tank
32, the lower end of cam 20 is embedded in holding tank 32, and the bottom wall of holding tank 32 forms inclined-plane 31.Specifically, inclined-plane 31 is from sliding block
Surface slope inwardly and form above-mentioned holding tank 32 after extension, namely the bottom wall of holding tank 32 forms above-mentioned inclined-plane
31.Wherein, the width between the relative side wall of holding tank 32 is slightly larger than the width of cam 20, so as to prevent cam 20 from accommodating
It is stuck in groove 32.Meanwhile the positioning and installation of sliding block can also be easy in holding tank by the way that cam 20 is arranged on.
Preferably, in the technical scheme of embodiment one, inclined-plane 31 is curved surface.Specifically, can be according to the type of cam 20
Line designs the form on inclined-plane 31, wherein, inclined-plane 31 can be plane, continuous curve surface or be part curved surface, as long as can expire
Sufficient design requirement.
As shown in Fig. 2 in the technical scheme of embodiment one, drive mechanism 40 is motor, drive mechanism 40 and tune
Gear drive 50 is provided between complete machine structure 30.Specifically, when motor rotates, the driving torque of motor can be with
The transverse shifting of sliding block is converted into by gear drive 50.Meanwhile gear driving has action precisely, reliable operation, into
The features such as this is low.Certainly, drive mechanism 40 is not limited to motor, and drive mechanism 40 can also be other conventional power
Structure, such as driving cylinder, electric putter etc..
As shown in Fig. 2 in the technical scheme of embodiment one, gear drive 50 includes worm gear 51 and worm screw 52.Its
In, worm gear 51 is set in outside the motor shaft of motor, and worm screw 52 is arranged on adjustment mechanism 30, and worm screw 52 nibbles with worm gear 51
Close.Specifically, the rotational motion of motor can be converted into the linear motion of sliding block by worm gear structure.Further,
As shown in figure 4, worm screw 52 is connected to the end of sliding block, and the bearing of trend of worm screw 52 is identical with the bearing of trend of sliding block.It is excellent
Selection of land, it will be understood by those skilled in the art that cam 20 is in the running, sliding block can be upper and lower with the change of the molded line of cam 20
Motion, therefore in embodiment one, motor and worm gear are configured to together move with the motion of sliding block, and then ensure worm gear
Cooperation can be engaged between 51 and worm screw 52 all the time.
As seen from Figure 3, the first connecting hole 33 is provided with adjustment mechanism 30, the second connecting hole is provided with worm screw 52
521.Connector is provided between first connecting hole 33 and the second connecting hole 521, and then worm screw 52 and adjustment mechanism 30 are connected
Together.In the present embodiment, connector is connecting pin.Certainly, other companies can also be passed through between adjustment mechanism 30 and worm screw 52
The mode of connecing links together, such as passes through attachment screw, welding etc..
As shown in Figures 2 and 3, in the technical scheme of embodiment one, valve assembly also includes elastic hold-down mechanism 60.Elasticity
Hold-down mechanism 60 coordinates with adjustment mechanism 30, and elastic hold-down mechanism 60 applies the elastic force towards the direction of cam 20 to sliding block, with
Make cam 20 and the abutting contact of inclined-plane 31.Specifically, elastic hold-down mechanism 60 can be such that the lower surface of cam 20 is close to all the time tiltedly
Face 31, so as to ensure the validity of the lift of valve 10 adjustment.
Preferably, elastic hold-down mechanism 60 is torsion spring, and the torsion spring arm of torsion spring abuts with the surface towards valve 10 of sliding block.
Certainly, elastic hold-down mechanism 60 can also be other elastic constructions, such as spring etc..
As shown in figure 4, in the technical scheme of embodiment one, valve 10 includes swing arm 11 and valve stem 12.Wherein, swing arm
11 abut setting with sliding block, and valve stem 12 is connected in swing arm 11.The structure of valve 10 and its operation principle are routine techniques,
It will not be repeated here.
As shown in figure 5, it is according to the difference of the embodiment two and embodiment one of the valve assembly of the application, adjustment mechanism
Linked together between 30 and worm screw 52 by elastic connection structure 70.Said structure causes when cam 20 is rotated, by
Flexible in elastic connection structure 70, adjustment mechanism 30 can carry out left and right adjustment in cam 20 under effect, and then make
Cam 20 rotation more smoothly, mechanism operation is more stable.In embodiment two, elastic connection structure 70 is bullet
Spring, one end of spring are fixed on the end face of adjustment mechanism 30, and the other end is fixed on the section of worm screw 52.
Present invention also provides a kind of engine, includes valve assembly, valve according to the embodiment of the engine of the application
Component is above-mentioned valve assembly.
Present invention also provides a kind of automobile, includes engine according to the embodiment of the automobile of the application, engine is upper
The engine stated.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for the ease of description, each portion shown in accompanying drawing
The size divided not is to be drawn according to the proportionate relationship of reality.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as authorizing explanation
A part for book.In shown here and discussion all examples, any occurrence should be construed as merely exemplary, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms is represented in following accompanying drawing with letter, therefore, once it is defined in a certain Xiang Yi accompanying drawing, then subsequent attached
It need not be further discussed in figure.
In the description of the present application, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " laterally, vertical,
Vertically, orientation or position relationship indicated by level " and " top, bottom " etc. are normally based on orientation or position shown in the drawings and closed
System, it is for only for ease of description the application and simplifies description, in the case where not making opposite explanation, these nouns of locality do not indicate that
There must be specific orientation with the device or element for implying meaning or with specific azimuth configuration and operation, therefore can not manage
Solve as the limitation to the application protection domain；The noun of locality " inside and outside " refers to relative to inside and outside each part profile in itself.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
Furthermore, it is necessary to explanation, limits parts, it is only for be easy to using the word such as " first ", " second "
Corresponding parts to be distinguished, do not have Stated otherwise such as, above-mentioned word does not have particular meaning, therefore it is not intended that to this
Apply for the limitation of protection domain.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. valve assembly, it is characterised in that including：Valve (10)；Cam (20), is arranged on the top of the valve (10), and the cam (20) can drive the valve (10) when rotating Move back and forth；Adjustment mechanism (30), it is arranged between the valve (10) and the cam (20), and the valve (10) and described Cam (20) abuts setting, surface of the adjustment mechanism (30) towards the valve (10) with the adjustment mechanism (30) And/or the adjustment mechanism (30) is towards being provided with inclined-plane (31) on the surface of the cam (20), the valve (10) and/or The cam (20) abuts setting with the inclined-plane (31)；Drive mechanism (40), coordinate with the adjustment mechanism (30), the drive mechanism (40) drives the adjustment mechanism (30) Movement is to change the position of the valve (10) and/or the cam (20) on the inclined-plane (31), so as to change the gas Door the distance between (10) and the cam (20).
- 2. valve assembly according to claim 1, it is characterised in that the bearing of trend of the inclined-plane (31) and the cam (20) central axis is set.
- 3. valve assembly according to claim 1 or 2, it is characterised in that the adjustment mechanism (30) is sliding block, described oblique Face (31) is arranged on the surface of the direction cam (20) of the sliding block.
- 4. valve assembly according to claim 3, it is characterised in that the surface of the direction cam (20) of the sliding block Holding tank (32) is provided with, the lower end of the cam (20) is embedded in the holding tank (32), the bottom of the holding tank (32) Wall forms the inclined-plane (31).
- 5. valve assembly according to claim 1, it is characterised in that the drive mechanism (40) is motor, described Gear drive (50) is provided between drive mechanism (40) and the adjustment mechanism (30).
- 6. valve assembly according to claim 5, it is characterised in that the gear drive (50) includes：Worm gear (51), is set in outside the motor shaft of the motor；Worm screw (52), it is arranged on the adjustment mechanism (30), the worm screw (52) is engaged with the worm gear (51).
- 7. valve assembly according to claim 6, it is characterised in that be provided with the first connection on the adjustment mechanism (30) Hole (33), is provided with the second connecting hole (521) on the worm screw (52), and the valve assembly, which also includes being located in described first, to be connected Connect the connector in hole (33) and second connecting hole (521)；Or the valve assembly also includes elastic connection structure (70), the both ends of the elastic connection structure (70) are connected with the adjustment mechanism (30) and the worm screw (52) respectively.
- 8. valve assembly according to claim 3, it is characterised in that the valve assembly also includes：Elastic hold-down mechanism (60), the elastic hold-down mechanism (60) coordinate with the adjustment mechanism (30), the elastic compression Mechanism (60) applies the elastic force towards the cam (20) direction to the sliding block, so that the cam (20) and the inclined-plane (31) abutting contact.
- 9. a kind of engine, including valve assembly, it is characterised in that the valve assembly is any one of claim 1 to 8 institute The valve assembly stated.
- 10. a kind of automobile, including engine, it is characterised in that the engine is the engine described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710445201.6A CN107503818A (en) | 2017-06-13 | 2017-06-13 | Valve assembly, engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710445201.6A CN107503818A (en) | 2017-06-13 | 2017-06-13 | Valve assembly, engine and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107503818A true CN107503818A (en) | 2017-12-22 |
Family
ID=60678479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710445201.6A Pending CN107503818A (en) | 2017-06-13 | 2017-06-13 | Valve assembly, engine and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107503818A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520210A (en) * | 2020-04-29 | 2020-08-11 | 施红 | Valve stroke adjustable device based on eccentric chute transmission principle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001132421A (en) * | 1999-11-05 | 2001-05-15 | Toyota Motor Corp | Adjustable valve mechanism |
| KR20080055396A (en) * | 2006-12-15 | 2008-06-19 | 현대자동차주식회사 | Variable valve lift system |
| CN101457672A (en) * | 2007-12-14 | 2009-06-17 | 现代自动车株式会社 | Continuous variable valve lift apparatus |
| DE102011116439A1 (en) * | 2011-10-19 | 2013-04-25 | Daimler Ag | Valve train device for internal combustion engine of motor car, has adjustment device provided for adjustment of full-variable valve and comprising adjustment element, and rocker arms connected to element and moved with respect to cam shaft |
| CN103437850A (en) * | 2013-08-14 | 2013-12-11 | 重庆长安汽车股份有限公司 | Continuously variable valve lift mechanism |
-
2017
- 2017-06-13 CN CN201710445201.6A patent/CN107503818A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001132421A (en) * | 1999-11-05 | 2001-05-15 | Toyota Motor Corp | Adjustable valve mechanism |
| KR20080055396A (en) * | 2006-12-15 | 2008-06-19 | 현대자동차주식회사 | Variable valve lift system |
| CN101457672A (en) * | 2007-12-14 | 2009-06-17 | 现代自动车株式会社 | Continuous variable valve lift apparatus |
| DE102011116439A1 (en) * | 2011-10-19 | 2013-04-25 | Daimler Ag | Valve train device for internal combustion engine of motor car, has adjustment device provided for adjustment of full-variable valve and comprising adjustment element, and rocker arms connected to element and moved with respect to cam shaft |
| CN103437850A (en) * | 2013-08-14 | 2013-12-11 | 重庆长安汽车股份有限公司 | Continuously variable valve lift mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520210A (en) * | 2020-04-29 | 2020-08-11 | 施红 | Valve stroke adjustable device based on eccentric chute transmission principle |
| CN111520210B (en) * | 2020-04-29 | 2021-05-28 | 江苏赛耐气门有限公司 | Valve stroke adjustable device based on eccentric chute transmission principle |
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Application publication date: 20171222 |
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| RJ01 | Rejection of invention patent application after publication |