CN100494643C - Engine air valve device capable of controlling cylinder ceasing - Google Patents
Engine air valve device capable of controlling cylinder ceasing Download PDFInfo
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- CN100494643C CN100494643C CNB2007100234377A CN200710023437A CN100494643C CN 100494643 C CN100494643 C CN 100494643C CN B2007100234377 A CNB2007100234377 A CN B2007100234377A CN 200710023437 A CN200710023437 A CN 200710023437A CN 100494643 C CN100494643 C CN 100494643C
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- cylindrical roller
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- 244000144730 Amygdalus persica Species 0.000 claims description 23
- 235000006040 Prunus persica var persica Nutrition 0.000 claims description 23
- 239000003921 oil Substances 0.000 claims description 16
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 10
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 230000009849 deactivation Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
- F01L1/185—Overhead end-pivot rocking arms
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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
- F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses a engine stigma means which can control cylinder halt, it includes the stigma (4), rocker (2), cam (1) and hydraulic tappet (3), said cam (1) has two curved surface, said rocker (2) is composite arm including the inner rocker (11) and the outer rocker (12), two curved surfaces of said cam (1) are contacted with the inner rocker (11) and the outer rocker (12) on different locations respectively. Compared with the prior art, the invention improves the engine fuel economy under low load through making partial cylinders work under higher loads, thereby it is higher work efficiency; reduces gas pump losses; and reduces fuel consumption and reduce the environmental pollution caused by emissions.
Description
Technical field
The invention belongs to the technical field of automobile construction, relate to the motor car engine air exchange system, more particularly, the present invention relates to the engine air valve device that a kind of controlled cylinder rests.
Background technique
Along with the continuous development of national economy, the improving constantly of living standards of the people, the automobile consumption amount has obtained unprecedented growth.Yet thing followed energy scarcity and environmental pollution have caused significant impact to national economy and social development.The energy-conserving and environment-protective problem of automobile has caused the great attention of each side, and the relevant laws and regulations of countries in the world are strict just day by day.Therefore, during the automobile dynamic system design, consider to reduce fuel consume emphatically and reduce toxic emission.
Generally speaking, automobile quicken or load bigger in, need motor that bigger power character is arranged, promptly all valves of motor run well, all cylinders all carry out the work of bigger load, motor is in the operating mode of high-power output.At present the subject matter that exists is: existing large-duty engine, in sub load when (as at the uniform velocity exercising with certain speed on expressway), it is very low to need the power of motor output to require, as long as sometimes even keep motor self running power demand.Usually at this moment all cylinders of motor are also normally carrying out low-load work, cause engine operation efficient not high, if the motor most of the time all is operated under low-load (as the city state of cyclic operation) situation and all cylinders all participate in work, then insufficient, fuel consume of oil inflame and effulent are can corresponding increase a lot, cause very big waste, increase pollution environment.
China Patent No. is the patented technology of the valve gear of the patent documentation of the CN200410011915.9 band cylinder deactivation mechanism that discloses a kind of internal-combustion engine, China Patent No. is the patented technology that the patent documentation of CN200410079765.5 discloses the valve mechanism of a kind of internal-combustion engine band cylinder deactivation mechanism, China Patent No. is the patented technology that the patent documentation of CN87102938 discloses a kind of universal variable rocker-arm cylinder-down oil saver, China Patent No. is the patented technology that the patent documentation of CN86209043 discloses a kind of universal variable rocker-arm cylinder-down oil saver.
Above-mentioned patented technology all relates to cylinder and rests technology, the cylinder of mentioning in CN200410011915.9 and the CN200410079765.5 patent is rested technology, be to adopt two independent rocking arms to control the motion of valve mechanism respectively, change the stroke of valve by oil pressure size in the control rocking arm.If under the situation of oil pressure deficiency, it is actually a kind of valve mechanism of route-variable, and can not thoroughly realize the motor cylinder deactivation.The technical disadvantages of this patent: when oil pressure is not enough, thorough cylinder deactivation, so it is poorer than patent of the present invention to reduce the effect of oil consumption; Adopt two independent rocking arms to realize resting that the space that takies valve mechanism is too big.The cylinder of mentioning in CN87102938 and the CN86209043 patent is rested technology, be to change rocking arm and act on laterostigmatal power, thereby realize that cylinder rests by adding electromagnetism or spring acuator.This device has many jejune places: as the poor reliability of electromagnetic actuator by the indirect control of rocking arm.When operating mode was switched, there was hysteresis quality in the spring dynamic responding speed.All these patents have been made certain improvement to the control structure of cylinder deactivation and control corresponding and adjusting method, but, disclosed technology is jejune, all fails thoroughly to solve the problem that the efficient of motor under running on the lower load is low, oil consumption reaches toxic emission greatly of existence at present.
Summary of the invention
Problem to be solved by this invention provides the engine air valve device that a kind of controlled cylinder rests, and its objective is to improve the efficient of motor under the working condition of low-load, reduces fuel consume, reduces toxic emission.
To achieve these goals, the technological scheme that the present invention takes is: the engine air valve device that this controlled cylinder that is provided rests, comprise valve, rocking arm, cam and hydraulic tappet, described cam is two curved surfaces, described rocking arm is a duplicated crank, comprise inner rocker arm and outer rocker arm, two curved surfaces on the described cam contact respectively in different positions with outer rocker arm with inner rocker arm.
The structure of described rocking arm is: establish inside and outside rocker shaft, described inner rocker arm and outer rocker arm are articulated and connected by inside and outside rocker shaft, establish cylindrical roller on the inner rocker arm, cylindrical roller is installed on the inner rocker arm by the cylindrical roller axle, establish the cylindrical roller chute on the outer rocker arm, the cylindrical roller chute is inserted at the two ends of cylindrical roller axle, and the direction of cylindrical roller chute is the sense of rotation of inner rocker arm.
The structure of described cam is: two curved surfaces on the described cam are two curved surfaces of coaxial line, promptly is cam peach shape curved surface, two ends are coaxial and isometrical cam circle curved surface of column, the profile of cam peach shape curved surface is greater than the cam circle curved surface of column, the position of cam peach shape curved surface is corresponding with the position of cylindrical roller, and the position of cam circle curved surface of column is corresponding with the position of outer rocker arm.
Two curved surfaces on the described cam and inner rocker arm and outer rocker arm in different positions respectively contacting structure be: on outer rocker arm, establish Returnning spring, Returnning spring is a torsion spring, its torsion direction is for making cam peach shape curved surface and cylindrical roller contacts with each other, cam circle curved surface of column and outer rocker arm break away from mutually, be provided with hydraulic structure on rocking arm, the action direction of its hydraulic coupling is for making cam peach shape curved surface and cylindrical roller breaks away from mutually, cam circle curved surface of column and outer rocker arm contact with each other.
Described hydraulic structure is established hydraulic pin, and the oil pressure in hydraulic structure rises, and the hydraulic pin motion makes inner rocker arm rotate around inside and outside rocker shaft, and its sense of rotation disengages promptly opposite with the torsion of Returnning spring direction for making cam peach shape curved surface and cylindrical roller.
Described hydraulic structure is established stop block at the limit position that inner rocker arm rotates; The limit position that described hydraulic structure rotates at inner rocker arm also is provided with the lock pin that makes inner rocker arm fixing.
Hydraulic oil in the described hydraulic structure is communicated with hydraulic buttery valve by hydraulic circuit, and the control circuit of described hydraulic buttery valve is connected with engine electronic control unit.
The present invention adopts technique scheme, compared with prior art, has improved the fuel economy of motor when low-load and idling, and it is operated in higher load by making partial cylinders, thereby has higher working efficiency; Reduce pumping loss; Reduce fuel consume and reduce that effulent produces and the pollution of environment.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are made brief description:
Fig. 1 is the schematic perspective view of the relative position of each member of the present invention;
Working state schematic representation of the present invention when Fig. 2 rests for cylinder;
Fig. 3 returns to the schematic representation of normal working for valve mechanism of the present invention;
Fig. 4 is the structural upright schematic representation of duplicated crank of the present invention;
Fig. 5 is the structural upright schematic representation of the hydraulic buttery valve that relates to of the present invention.
Be labeled as among the figure: 1, cam, 2, rocking arm, 3, hydraulic tappet, 4, valve, 5, the cylindrical roller axle, 6, the cylindrical roller chute, 7, cylindrical roller, 8, Returnning spring, 9, cam peach shape curved surface, 10, cam circle curved surface of column, 11, inner rocker arm, 12, outer rocker arm, 13, inside and outside rocker shaft, 14, hydraulic structure, 15, hydraulic buttery valve.
Embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and working principle, the manufacturing process of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present invention, technological scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present invention structure expressed as Fig. 1 to Fig. 5, the utility model is the engine air valve device that a kind of controlled cylinder rests, and comprises valve 4, rocking arm 2, cam 1 and hydraulic tappet 3.
The theoretical foundation of generally acknowledging of Automobile Motor Design is: the work of partial cylinders high load is than the efficient height of all cylinder low-load work.For energy saving and reduction discharging, simultaneously again for satisfying the requirement of client to power character, at the motor of big discharge capacity more than 6 cylinders, under the driving cycle of automobile, when not needing big power character to require, by the control gas valve executing mechanism, close inlet and exhaust valve, valve-closing with partial cylinders quits work, thereby reduces pumping loss, improve the working heat efficient of working cylinder simultaneously, reduce fuel consume and reduce the purpose that effulent produces thereby reach.And under the situation of dynamic property requirement, again by control for gas valve executing mechanism, the work that recovers all cylinders.Cylinder deactivation control is exactly the variable engine discharge capacity in essence, makes the cylinder of work done often be in the higher state of efficient, the normal unlatching by the control valve or close control cylinder whether to participate in proper functioning.
In order to realize improving efficient, reduction fuel consume, the minimizing toxic emission purpose of motor under the working condition of low-load, the technological scheme that the present invention takes is: as Fig. 1, Fig. 2 and shown in Figure 3, the engine air valve device that this controlled cylinder that is provided rests, its cam 1 is two curved surfaces, described rocking arm 2 is a duplicated crank, comprise inner rocker arm 11 and outer rocker arm 12, two curved surfaces on the described cam 1 contact respectively in different positions with outer rocker arm 12 with inner rocker arm 11.
Technology of the present invention is mainly used in the large-duty engine of multi cylinder, and it is about more than 10～15% to save fuel oil on year-on-year basis.It is exactly the variable engine discharge capacity in essence that cylinder stops putting out control, makes the cylinder of work done often be in the higher state of efficient.Cylinder stopping technique (DOD) generally by the control to valve actuating mechanism, is realized the work whether control to the intake valve of each cylinder, thus the control whether realization works to cylinder.
The key point of the substance contribution of the present invention's design is:
1, cam 1 has two kinds of curved surfaces, and two kinds of operating movement rules are provided;
2, the duplicated crank of band cylindrical roller 7;
3, the hydraulic buttery valve 15 that is used for engine oil pressure control usefulness.
Below its concrete structure is introduced:
As shown in Figure 4, the concrete structure of rocking arm 2 of the present invention is: establish inside and outside rocker shaft 13, described inner rocker arm 11 and outer rocker arm 12 are articulated and connected by inside and outside rocker shaft 13, establish cylindrical roller 7 on the inner rocker arm 11, cylindrical roller 7 is installed on the inner rocker arm 11 by cylindrical roller axle 5, establish cylindrical roller chute 6 on the outer rocker arm 12, cylindrical roller chute 6 is inserted at the two ends of cylindrical roller axle 5, and the direction of cylindrical roller chute 6 is the sense of rotation of inner rocker arm 11.
Referring to Fig. 1 to Fig. 3, the concrete structure of cam 1 of the present invention is:
1, the shape of cam 1: two curved surfaces on the described cam 1 are two curved surfaces of coaxial line, promptly is cam peach shape curved surface 9, two ends are coaxial and isometrical cam circle curved surface of column 10, the profile of cam peach shape curved surface 9 is greater than cam circle curved surface of column 10, the position of cam peach shape curved surface 9 is corresponding with the position of cylindrical roller 7, and the position of cam circle curved surface of column 10 is corresponding with the position of outer rocker arm 12.
2, the relative position relation of the structure of cam 1 and rocking arm 2: two curved surfaces on the cam 1 of the present invention and inner rocker arm 11 and outer rocker arm 12 in different positions respectively contacting structure be: on outer rocker arm 12, establish Returnning spring 8, Returnning spring 8 is a torsion spring, its torsion direction contacts with each other for making cam peach shape curved surface 9 and cylindrical roller 7, cam circle curved surface of column 10 breaks away from mutually with outer rocker arm 12, be provided with hydraulic structure 14 on rocking arm 2, the action direction of its hydraulic coupling breaks away from mutually for making cam peach shape curved surface 9 and cylindrical roller 7, cam circle curved surface of column 10 contacts with each other with outer rocker arm 12.
The concrete structure of above-described hydraulic structure 14 is:
1, hydraulic structure 14 is established hydraulic pin, oil pressure in hydraulic structure rises, the hydraulic pin motion makes inner rocker arm 11 rotate around inside and outside rocker shaft 13, and its sense of rotation disengages promptly opposite with the torsion of Returnning spring 8 direction for making cam peach shape curved surface 9 and cylindrical roller 7.
2, described hydraulic structure 14 is established stop block at the limit position that inner rocker arm 11 rotates; The limit position that described hydraulic structure 14 rotates at inner rocker arm 11 also is provided with the lock pin that inner rocker arm 11 is fixed.
3, the hydraulic oil in the described hydraulic structure 14 is communicated with hydraulic buttery valve 15 by hydraulic circuit, and the control circuit of described hydraulic buttery valve 15 is connected with engine electronic control unit (ECU).The structure of hydraulic buttery valve 15 as shown in Figure 5.
Working procedure of the present invention is:
1, the cylinder working procedure of resting:
The working procedure that cylinder rests is referring to Fig. 2, when hydraulic buttery valve 15 is received the instruction of ECU operating mode switching, hydraulic buttery valve 15 enters the oil pressure in the execution oil duct of rocking arm 2 by change, overcome the elastic torsion of Returnning spring 8, hydraulic pin is pushed up inner rocker arm 11, at this moment inner rocker arm 11 moves to the position as Fig. 2 under the pressure effect of hydraulic pin, and this moment, cylindrical roller 7 also moved on at cylindrical roller chute 6 bottom.For the purpose of reliable, the inner rocker arm 11 after the stop block in the rocking arm will move is spacing, and is fixed by lock pin.At this moment the cylindrical roller 7 on the inner rocker arm 11 can not touch the cam peach shape curved surface 9 on the cam 1, and the cam circle curved surface of column 10 on the axle on outer rocker arm 12 both sides projections and the cam 1 contacts, the profile of this cam circle curved surface of column 10 passes to valve 4 by outer rocker arm 12, at this moment valve 4 does not move up and down, and just this valve 4 is in closed condition all the time.The projection surface that outer rocker arm 12 both sides contact with cam circle curved surface of column 10 makes it smooth and wear-resisting through special processing.
2, cylinder recovers the working procedure of normal work done:
The working state that valve mechanism returns to is just often seen Fig. 3.Receive ECU operating mode switching command up to hydraulic buttery valve 15, change the oil pressure of carrying out oil duct, hydraulic pin is return original position, and inner rocker arm 11 also moves on to the origin-location under Returnning spring 8 effects.The top that this moment, cylindrical roller axle 5 also moved on at cylindrical roller chute 6.At this moment the cylindrical roller 7 on the inner rocker arm 11 directly contacts with cam peach shape curved surface 9 on the cam 1, and the cam circle curved surface of column 10 on cam peach shape curved surface 9 both sides breaks away from outer rocker arms 12 both sides projections.These cam peach shape curved surface 9 profiles pass to valve 4 by inner rocker arm 11 and do corresponding motion, and at this moment valve 4 moves up and down by general normal rule, finish the normal switch action of valve 4 on air flue, just recover the proper motion of this valve mechanism.
In sum; the valve mechanism basic principle that the rocking arm type cylinder rests is: according to the driving cycle of automobile; when not needing big power output;, close inlet and exhaust valve, with the valve-closing of partial cylinders; it is quit work by the control gas valve executing mechanism; thus pumping loss reduced, improve the working heat efficient of working cylinder simultaneously, reduce fuel consume and reduce the purpose that effulent produces to reach.And under the situation that has high power output to require, again by control for gas valve executing mechanism, the work that recovers all cylinders.In, during low load operation, use variable rocker-arm and OCV Oil Control Valve " to close " partial cylinders in all cylinders.And when acceleration and high loaded process, all valves run well, and motor returns to whole cylinder outputs outputs.This conversion function is in the inner realization of rocking arm, by the fluid power driving of engine oil pressure.This system equally also can be applicable to 6 Cylinder engines and the above motor of 6 cylinders.
This valve mechanism is based on more prevalent Dual Over Head Camshaft and the design of roller rocker arms formula valve system, and make at existing base engine structure and have between the structure of variable valve actuation technology and change neatly, and realized changing as far as possible little existing base engine structure.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technological scheme carry out; or design of the present invention and technological scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (5)
1, the engine air valve device that rests of a kind of controlled cylinder, comprise valve (4), rocking arm (2), cam (1) and hydraulic tappet (3), described cam (1) is two curved surfaces, described rocking arm (2) is a duplicated crank, comprise inner rocker arm (11) and outer rocker arm (12), two curved surfaces on the described cam (1) contact respectively in different positions with outer rocker arm (12) with inner rocker arm (11); The structure of described rocking arm (2) is: establish inside and outside rocker shaft (13), described inner rocker arm (11) and outer rocker arm (12) are articulated and connected by inside and outside rocker shaft (13), establish cylindrical roller (7) on the inner rocker arm (11), cylindrical roller (7) is installed on the inner rocker arm (11) by cylindrical roller axle (5), establish cylindrical roller chute (6) on the outer rocker arm (12), cylindrical roller chute (6) is inserted at the two ends of cylindrical roller axle (5), the opening direction of cylindrical roller chute (6) is the sense of rotation of inner rocker arm (11), the structure that it is characterized in that described cam (1) is: two curved surfaces on the described cam (1) are two curved surfaces of coaxial line, promptly is cam peach shape curved surface (9), two ends are coaxial and isometrical cam circle curved surface of column (10), the profile of cam peach shape curved surface (9) is greater than cam circle curved surface of column (10), the position of cam peach shape curved surface (9) is corresponding with the position of cylindrical roller (7), and the position of cam circle curved surface of column (10) is corresponding with the position of outer rocker arm (12).
2, the engine air valve device that rests according to the described controlled cylinder of claim 1, it is characterized in that: two curved surfaces on the described cam (1) and inner rocker arm (11) and outer rocker arm (12) in different positions respectively contacting structure be: on outer rocker arm (12), establish Returnning spring (8), Returnning spring (8) is a torsion spring, its torsion direction contacts with each other for making cam peach shape curved surface (9) and cylindrical roller (7), cam circle curved surface of column (10) breaks away from mutually with outer rocker arm (12), be provided with hydraulic structure (14) on rocking arm (2), the action direction of its hydraulic coupling breaks away from mutually for making cam peach shape curved surface (9) and cylindrical roller (7), cam circle curved surface of column (10) contacts with each other with outer rocker arm (12).
3, the engine air valve device that rests according to the described controlled cylinder of claim 2, it is characterized in that: described hydraulic structure (14) is established hydraulic pin, oil pressure in hydraulic structure rises, the hydraulic pin motion makes inner rocker arm (11) rotate around inside and outside rocker shaft (13), its sense of rotation disengages for making cam peach shape curved surface (9) and cylindrical roller (7), promptly with the opposite direction of torsion of Returnning spring (8).
4, the engine air valve device that rests according to the described controlled cylinder of claim 3 is characterized in that: described hydraulic structure (14) is established stop block at the limit position that inner rocker arm (11) rotates; The limit position that described hydraulic structure (14) rotates at inner rocker arm (11) also is provided with the lock pin that makes inner rocker arm (11) fixing.
5, the engine air valve device that rests according to claim 2 or 3 or 4 described controlled cylinders, it is characterized in that: the hydraulic oil in the described hydraulic structure (14) is communicated with hydraulic buttery valve (15) by hydraulic circuit, and the control circuit of described hydraulic buttery valve (15) is connected with engine electronic control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100234377A CN100494643C (en) | 2007-06-04 | 2007-06-04 | Engine air valve device capable of controlling cylinder ceasing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100234377A CN100494643C (en) | 2007-06-04 | 2007-06-04 | Engine air valve device capable of controlling cylinder ceasing |
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| CN101086212A CN101086212A (en) | 2007-12-12 |
| CN100494643C true CN100494643C (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100234377A Active CN100494643C (en) | 2007-06-04 | 2007-06-04 | Engine air valve device capable of controlling cylinder ceasing |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403326A (en) | 2008-06-16 | 2009-04-08 | 奇瑞汽车股份有限公司 | Variable air valve lift range mechanism of internal combustion engine |
| GB201211534D0 (en) * | 2012-06-29 | 2012-08-08 | Eaton Srl | Valve bridge |
| CN104675469B (en) * | 2013-12-03 | 2017-09-29 | 比亚迪股份有限公司 | Valve actuating mechanism for engine |
| US20170236630A1 (en) * | 2014-08-18 | 2017-08-17 | Eaton Corporation | Magnetically Latching Flux-Shifting Electromechanical Actuator |
| CN106762007B (en) * | 2015-11-20 | 2019-02-15 | 上海汽车集团股份有限公司 | Vehicle and its engine |
| EP3445956B1 (en) | 2016-04-21 | 2021-01-06 | Eaton Intelligent Power Limited | Valve train assembly |
| CN106246276A (en) * | 2016-08-29 | 2016-12-21 | 新奥（中国）燃气投资有限公司 | The automatic adjusting mechanism of a kind of valve clearance and Automatic adjustment method |
| US10544711B1 (en) * | 2018-09-06 | 2020-01-28 | Delphi Technologies Ip Limited | Switchable rocker arm and roller retainer thereof |
| CN110131055A (en) * | 2019-05-10 | 2019-08-16 | 天津大学 | A kind of deactivation apparatus suitable for engine |
| CN111140303A (en) * | 2019-12-25 | 2020-05-12 | 中国第一汽车股份有限公司 | Double-valve switchable rocker arm system |
-
2007
- 2007-06-04 CN CNB2007100234377A patent/CN100494643C/en active Active
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