CN109519248A - Electric control valve mechanism, engine and automobile - Google Patents
Electric control valve mechanism, engine and automobile Download PDFInfo
- Publication number
- CN109519248A CN109519248A CN201710841784.4A CN201710841784A CN109519248A CN 109519248 A CN109519248 A CN 109519248A CN 201710841784 A CN201710841784 A CN 201710841784A CN 109519248 A CN109519248 A CN 109519248A
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- valve
- electric control
- lead screw
- roller
- nut
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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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- 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
-
- 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
- F01L9/22—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by rotary motors
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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 kind of electric control valve mechanism, engine and automobiles, including valve (1), valve actuating mechanism, valve spring (2), the valve actuating mechanism includes shell (3) and motor (4), planetary roller screw (5) and push rod (6)；The planetary roller screw (5) includes lead screw (51), roller (52) and the nut (53) set on the roller periphery, the roller (52) and lead screw (51) engaged transmission, the nut (53) and roller (52) engaged transmission；Lead screw (51) described in the power output axis connection of the motor (4), the nut (53) connects the push rod (6), and guiding mechanism is equipped between the nut (53) and shell (3)；The lower end of the push rod (6) pushes valve (1) movement.The electric control valve mechanism can adjust valve timing and valve stroke according to actual operating mode, to improve engine performance, reduce oil consumption and pollutant emission.
Description
Technical field
The present invention relates to the electric control valve mechanisms of automobile air valve mechanism technology field, especially automobile.The invention further relates to
Engine and automobile equipped with the electric control valve mechanism.
Background technique
In future, internal combustion engine has to meet the CO2 emission and exhaust contaminant requirement being increasingly stringenter, this will
So that valve mechanism plays the part of a very important role.On the one hand, valve mechanism will to lose in ventilation cycle low as far as possible；
On the other hand, valve mechanism must realize mixing as far as possible in cylinder, optimize efficiency and low to have in combustion
Discharge.In addition to this, by adjusting residual waste gas quantity in compression ratio and cylinder in a certain range, combustion process can be directly affected.
Therefore in the past few years in, variable valve actuator for air application obtains significant growth, and two of them commonly can be changed
Valve mechanism scheme is as follows:
The first scheme realizes that valve lift curve temporarily moves using cam phase adjuster, that is, changeable air valve
Timing.Variable Valve Timing Technique of IC Engine (VVT, Variable Valve Timing) principle is the operation according to engine
Situation, the amount and valve for adjusting air inlet (exhaust) open and close time, angle.Reach the air capacity entered most preferably, improves burning effect
Rate.
When automobile engine is in low-speed running, flow inertance is small, if valve timing remains unchanged at this time, partial-air admission
Cylinder will be released by piston, and reduce air inflow, residual gas will increase in cylinder.
When engine is when running at high speed, flow inertance is big, can if increasing intake lag angle and valve overlap at this time
Increase air inflow and reduce residual waste gas quantity, the scavenging period of engine is made to reach perfection.
Second scheme changes valve lift curve height, valve opening and closes point position, and thus changes valve opening
Break face, that is, lift range variable.The air valve structure of traditional petrol engine is as shown in Figure 1, by valve 1', valve bullet
The composition such as spring 2', camshaft 3' and timing sprocket 4', the valve timing being adjustable is limited, and is not adjustable valve stroke,
Valve stroke be it is fixed immutable, that is, camshaft cam profile only have one kind.
The design of cam contour line of conventional gasoline machine engine is the balance selection to engine under full working scope, result
It is that engine both cannot get optimal high speed efficiency, also cannot get optimal low speed torque, it is impossible to make engine in high velocity
Good response is all obtained with low regime.
Therefore, the new valve mechanism of one kind how is designed to overcome drawbacks described above, is that those skilled in the art need to solve
The technical issues of.
Summary of the invention
The object of the present invention is to provide a kind of electric control valve mechanisms.The electric control valve mechanism can according to actual operating mode come
Valve timing and valve stroke are adjusted, to improve engine performance, reduces oil consumption and pollutant emission.
It is a further object of the present invention to provide a kind of engines equipped with the electric control valve mechanism.
It is yet another object of the invention to provide a kind of automobiles equipped with the engine.
To achieve the above object, electric control valve mechanism provided by the invention, including valve, valve actuating mechanism, Yi Jiyong
In providing the valve spring of reset force for the valve, the valve actuating mechanism include shell and the enclosure interior according to
The secondary motor axially arranged, planetary roller screw and push rod；The planetary roller screw includes lead screw, centered on the lead screw
The circumferentially roller of arranged distribution and the nut set on the roller periphery, the roller and lead screw engaged transmission, the spiral shell
Female and roller engaged transmission；The lead screw of planetary roller screw described in the power output axis connection of the motor, the planetary roller
The nut of lead screw connects the push rod, and is equipped between the nut and shell and limits it and rotate in a circumferential direction and guide its axial movement
Guiding mechanism；The lower end of the push rod stretches out the shell and is supported in the valve to push the valve event.
Further, the roller of the planetary roller screw includes major diameter section and path section, the major diameter section and the silk
Thick stick is meshed, and the path section is meshed with the nut；The major diameter section of each roller is in intermediate position, each rolling
The path section of column includes the first path section and the second path section, and first path section and the second path section are located at described big
The both ends of diameter section；The nut is equipped with the first internal screw thread for being meshed respectively with first path section and the second path section and the
Two internal screw threads, it is spaced apart between first internal screw thread and the second internal screw thread.
Further, the valve is single valve, the axis of the motor, planetary roller screw and push rod and the valve
Axis coincide, the lower end of the push rod stretches out the shell and is supported directly upon the upper end of the valve.
Further, the valve be dual valve or more valves, the axis of the motor, planetary roller screw and push rod with
The axis of the valve is parallel；The upper end of the valve is fixedly connected with briquetting, and the shell is stretched out in the lower end of the push rod
And it is supported in the briquetting.
Further, the guiding mechanism includes the sliding block on the nut outer surfaces and is disposed in the housing table
Axial slideway on face, the sliding block and the slideway axial sliding fit.
It further, further include lead screw supporting element；The lead screw supporting element is fixed on the enclosure interior, and is located at described
Between motor and planetary roller screw, it is used for across the through-hole of the lead screw and the lead screw described equipped with being used to support
The parts of bearings of lead screw rotation.
Further, the outer surface of the shell is equipped with the location and installation portion for being fixed on the engine.
Further, the motor is integrated with electric machine controller in tail portion.
To realize above-mentioned second purpose, the present invention provides a kind of engine, including cylinder body, cylinder, corresponds to each gas
The intake valve and exhaust valve of cylinder, the intake valve and exhaust valve of each cylinder are described in any of the above embodiments automatically controlled
Valve mechanism.
To realize above-mentioned third purpose, the present invention provides a kind of automobile, including car body, engine, gearbox and with institute
The wheel of the power output end transmission connection of gearbox is stated, the engine is the engine equipped with above-mentioned electric control valve mechanism.
Electric control valve mechanism provided by the present invention is using the valve mechanism of motor control, including motor, planetary roller
The components such as lead screw and push rod, when work, rotary motion is changed into linear motion by planetary roller screw by motor, and will be moved
Power passes to push rod, then pushes valve event by push rod, to reach the function of either on or off valve.By then passing through motor
Control valve event, therefore can at any time according to the demand of engine open and close valve, really realize it is large-scale can
Air valve variation timing function improves the efficiency of combustion of engine, reduces discharge, furthermore, it is possible to adjust within a certain area without section grade
Valve opening drives to get up to have no rude sense in this way, and comfort is stronger, and adaptability of the valve actuating mechanism under each revolving speed is also more
By force, a possibility that engine volumetric efficiency can be improved to greatest extent, ECU calibration control can also be greatly improved.
In addition, planetary roller screw has high-mechanic, high life, high efficiency, high summation watt rating ratio, high quality power ratio etc.
Advantage, while being driven same power, it is ensured that valve mechanism has smaller volume and higher service life.
Engine and automobile provided by the present invention are equipped with the electric control valve mechanism, since the electric control valve mechanism has
There is above-mentioned technical effect, engine and automobile equipped with the electric control valve mechanism should also have corresponding technical effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of conventional valve train；
Fig. 2 is a kind of structural schematic diagram of electric control valve mechanism provided in an embodiment of the present invention；
Fig. 3 is the cross-sectional view of electric control valve mechanism shown in Fig. 1；
Fig. 4 is structural schematic diagram of the electric control valve mechanism after removing shell shown in Fig. 1；
Fig. 5 is connected for motor with planetary roller screw and the schematic diagram of internal structure of planetary roller screw.
In Fig. 1:
1'. valve 2'. valve spring 3'. camshaft 4'. timing sprocket
Fig. 2 is into Fig. 5:
1. 4. motor of valve 2. valve spring, 3. shell, 31. slideway, 32. connecting column, 5. planetary roller screw 51.
The support of 7. briquetting of lead screw 52. roller, 53. nut, 54. ring flange, 55. circlip, 56. sliding block, 6. push rod, 8. lead screw
9. parts of bearings of part, 10. electric machine controller
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Herein, the terms such as " upper and lower, left and right " are positional relationships based on the figure and establishment, with reference to the accompanying drawings
Difference, corresponding positional relationship is also possible to change therewith, therefore, can not be understood as to the exhausted of protection scope
To restriction；Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
Fig. 2, Fig. 3, Fig. 4 are please referred to, Fig. 2 is a kind of structural representation of electric control valve mechanism provided in an embodiment of the present invention
Figure；Fig. 3 is the cross-sectional view of electric control valve mechanism shown in Fig. 1；Fig. 4 is knot of the electric control valve mechanism after removing shell shown in Fig. 1
Structure schematic diagram.
Valve mechanism provided by the present embodiment be using motor control electric control valve mechanism, engine each or
The movement of each group of valve passes through motor and is driven, and can save the components such as timing sprocket, camshaft, can be good at solving
Conventional valve train adjustable range is narrow, not can be carried out the problems such as lift range variable, to be obviously improved engine performance.
As shown, the valve mechanism is mainly by valve 1, valve actuating mechanism and for providing reset force for valve
The equal components composition of valve spring 2, wherein the main successively axial arrangement by shell 3 and inside shell 3 of valve actuating mechanism
The components assembling such as motor 4, planetary roller screw 5 and push rod 6 constitute, shell 3 is generally cylindrical, closed at both ends up and down,
And it is equipped with a through-hole in lower end, the lower end of push rod 6 passes through the protruding certain distance of this through-hole, can make flexible fortune in through-holes
It is dynamic, to push 1 downward actuation of valve.
Motor 4 with stator and rotor is fixedly mounted on inside shell 3, and the main component of planetary roller screw 5 has silk
Thick stick 51, centered on lead screw 51 circumferentially the roller 52 of arranged distribution, the nut 53 set on the periphery of roller 52, ring flange 54 and
Circlip 55,51 engaged transmission of roller 52 and lead screw, 52 engaged transmission of nut 53 and roller, the head at each 52 both ends of roller are logical
It crosses cylinder optical axis to be packed into the end ring washer hole of ring flange 54, keeps equidistant between each roller 52, ring flange 54, which floats, pacifies
In the nut 53 in sleeve-shaped, pass through 55 axial restraint of circlip.
The lead screw 51 of the power output axis connection planetary roller screw 5 of motor 4, the nut 53 of planetary roller screw 5 pass through
The modes such as riveting or threaded connection are connected with push rod 6, and guiding mechanism, this guiding mechanism are equipped between nut 53 and shell 3
Left and right sliding block 56 by being set on 53 outer surface of nut and the axial slideway 31 on 3 inner surface of shell are formed, left and right two
Sliding block 56 is respectively the shorter straight pin of size, and two straight pins are respectively protruding into after slideway 31 through its cylindrical surface and slideway
31 axial sliding fits.In this way, when lead screw 51 rotate when, nut 53 can along slideway 31 move axially upward or downward without with
Lead screw 51 rotates together.
The lower end of push rod 6 stretches out shell 3 and is simultaneously supported in valve 1, and when work, the torque of motor 4 passes through planetary roller screw 5
The power of rectilinear direction is converted to, the movement for pushing valve 1 to be opened and closed.
Certainly, guiding mechanism is also designed to other forms other than being designed to the form of sliding block and slideway.Example
Such as, axial draw runner is arranged on the outer surface of nut 53 to be slidably matched with the slideway on 3 inner wall of shell, alternatively, by sliding block with
Location swap of slideway, etc. all may be used as long as can satisfy the requirement that limitation nut rotates in a circumferential direction and guiding nut moves axially
To be used to realize the object of the invention.
Valve as shown in the figure is dual valve, i.e., there are two valve, this valves for inlet valve or the exhaust valve tool of same cylinder
Motor 4, the axis of planetary roller screw 5 and push rod 6 it is parallel with the axis of valve 1；The upper end of valve 1 is fixedly connected with pressure
Block 7, the both ends of briquetting 7 are fixedly connected with the upper end of two valves 1 respectively, and the centre of briquetting 7 offers a through-hole, push rod 6
Shell 3 is stretched out in lower end, and the necking down position of end is inserted into the through-hole of briquetting 7, is supported on briquetting 7 by stepped portions, with
Just it is assigned to what thrust was averaged on two valves 1, and guarantees that the relative position of push rod 6 and briquetting 7 remains stable.
It is appreciated that electric control valve mechanism provided by the present invention can also be single valve or more valves in addition to dual valve.
If electric control valve mechanism is single valve, the axis of motor 4, planetary roller screw 5 and push rod 6 can be with the axis of valve 1
It coinciding, the lower end of push rod 6 stretches out shell 3 and is supported directly upon the upper end of valve 1, if electric control valve mechanism is more valves,
Then valve 1 can be pushed to act by briquetting 7 using the similar structure with dual valve, push rod 6.
In order to guarantee planetary roller screw can even running, can the appropriate location inside shell 3 install additional lead screw branch
Support member 8 supports lead screw 51 to be rotated, and in the present embodiment, lead screw supporting element 8 is a disk-shaped member, is fixed on shell 3
Inside, and between motor 4 and planetary roller screw 5, the axially extending bore passed through for lead screw 51 is offered among it, and
The parts of bearings 9 for being used to support the rotation of lead screw 51 is installed in this through-hole.
Motor is integrated with electric machine controller 10 in tail portion, and entire shell 3 is three stage structure, is followed successively by motor from top to bottom
Controller housing, electric machine casing and planetary roller screw shell, two adjacent shells are equipped with lateral connection on the outer surface
Column 32 offers axial through-hole on each connecting column 32 respectively, three shells can be assembled into one by connectors such as bolts
Complete shell.
Further, it is also possible to which the location and installation portion for being fixed on the engine is arranged on the outer surface of shell 3.
Referring to FIG. 5, Fig. 5 is that motor is connected with planetary roller screw and the internal structure of planetary roller screw is illustrated
Figure.
As shown, the roller 52 of planetary roller screw 5 includes major diameter section and path section, major diameter section is nibbled with 51 phase of lead screw
It closes, path section is meshed with nut 53；The major diameter section of each roller 52 is in intermediate position, and the path section of each roller 52 includes the
One path section and the second path section, the first path section and the second path section are located at the both ends of major diameter section；Nut 53, which is equipped with, to be divided
The first internal screw thread and the second internal screw thread not being meshed with the first path section and the second path section, spiral shell in the first internal screw thread and second
Spaced apart between line, forming half is mesh regional, the other half is the structure of non-mesh regional.
The planetary roller screw structure that actuator uses can use general expression planetary roller screw or differential type planet
Roller screw, difference are that the roller of general expression planetary roller screw and nut have lead angle, lead angle and lead screw
Identical, the roller and nut thread lift angle of differential type planetary roller screw are zero, and transmission stroke is less than guide screw lead, and transmission ratio is more
Greatly, but transmission accuracy is poor compared with general expression planetary roller screw, can be chosen according to actual requirement.What the present embodiment was selected is poor
Dynamic formula planetary roller screw.
Above-described embodiment is only preferred embodiment of the invention, is specifically not limited thereto, on this basis can be according to reality
It needs to make to have and targetedly adjust, to obtain different embodiments.For example, the lead screw and motor of planetary roller screw
The output shaft of rotor can be integral structure, alternatively, the lead screw of planetary roller screw is seperated with the output shaft of rotor
Formula structure, centre are connected, etc. by spline or screw thread.Since mode in the cards is more, here just no longer one by one
It illustrates.
The present invention is generated compared with prior art to be had the technical effect that
1) from the perspective of variable valve timing:
On and off control by motor of the electric control valve mechanism to valve, rather than the cam of traditional mechanism, cam
Fixed mechanical structure, can only very limited adjustment valve timing, and electric control valve mechanism of the invention can be completely real
Existing real-time control can open and close valve according to the demand of engine at any time, really realize as long as giving motor control signal
Large-scale variable valve timing function, improve the efficiency of combustion of engine, reduce discharge.
2) from the perspective of lift range variable:
The lift of variable valve actuator for air of the invention be not it is fixed, can need to increase or decrease gas according to engine
Door lift, can cause increasing or decreasing for air inflow.The valve stroke of traditional valve mechanism due to mechanical structure limitation, all
It is fixed, and the present invention is by then passing through motor control, it is possible to no section grade is done within a certain area adjusts valve opening
Degree drives to get up to have no rude sense in this way, and comfort is stronger, and adaptability of the valve actuating mechanism under each revolving speed is also stronger, energy
Engine volumetric efficiency is improved to greatest extent.
3) from the perspective of improving ECU control possibility:
Since electric control valve structure of the invention is Electronic control, a possibility that calibration controls can be greatly improved.
In addition to above-mentioned electric control valve mechanism, the present invention also provides a kind of engine, including cylinder body, cylinder, correspond to each gas
The intake valve and exhaust valve of cylinder, the intake valve and exhaust valve of each cylinder are electric control valve mechanism described above.
The present invention also provides a kind of automobile, pass including car body, engine, gearbox and with the power output end of gearbox
The wheel of dynamic connection, the engine are the engine equipped with above-mentioned electric control valve mechanism, and refer to the prior art for remaining structure,
Repeats no more herein.
Electric control valve mechanism, engine and automobile provided by the present invention are described in detail above.It answers herein
With a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help to manage
Solve core of the invention thought.It should be pointed out that for those skilled in the art, not departing from original of the invention
, can be with several improvements and modifications are made to the present invention under the premise of reason, these improvement and modification also fall into right of the present invention and want
In the protection scope asked.
Claims (10)
1. electric control valve mechanism, including valve (1), valve actuating mechanism and for providing reset force for the valve (1)
Valve spring (2), which is characterized in that the valve actuating mechanism includes shell (3) and successively axial in the enclosure interior
Motor (4), planetary roller screw (5) and the push rod (6) of arrangement；The planetary roller screw (5) includes lead screw (51), with described
The circumferentially roller (52) of arranged distribution and the nut (53) set on the roller periphery centered on lead screw, the roller (52)
With lead screw (51) engaged transmission, the nut (53) and roller (52) engaged transmission；The power output axis connection of the motor (4)
The lead screw (51), the nut (53) connect the push rod (6), and limitation is equipped between the nut (53) and shell (3)
Its guiding mechanism for rotating in a circumferential direction and it being guided to move axially；The shell (3) is stretched out to push in the lower end of the push rod (6)
State valve (1) movement.
2. electric control valve mechanism according to claim 1, which is characterized in that the roller of the planetary roller screw (5)
It (52) include major diameter section and path section, the major diameter section is meshed with the lead screw (51), the path section and the nut
(53) it is meshed；The major diameter section of each roller (52) is in intermediate position, and the path section of each roller (52) includes the
One path section and the second path section, first path section and the second path section are located at the both ends of the major diameter section；It is described
Nut (53) is equipped with the first internal screw thread and the second internal screw thread being meshed respectively with first path section and the second path section, institute
It states spaced apart between the first internal screw thread and the second internal screw thread.
3. electric control valve mechanism according to claim 1, which is characterized in that the valve (1) is single valve, the motor
(4), the axis of planetary roller screw (5) and push rod (6) and the axis of the valve (1) coincide, the lower end of the push rod (6)
It stretches out the shell (3) and is supported in the upper end of the valve (1).
4. electric control valve mechanism according to claim 1, which is characterized in that the valve (1) be dual valve or more valves,
The axis of the motor (4), planetary roller screw (5) and push rod (6) is parallel with the axis of the valve (1)；The valve
(1) upper end is fixedly connected with briquetting (7), and the lower end of the push rod (6) stretches out the shell (3) and is supported in the briquetting
(7)。
5. electric control valve mechanism according to claim 1, which is characterized in that the guiding mechanism includes being set to the nut
(53) sliding block on outer surface (56) and be set to the shell (3) inner surface on axial slideway (31), the sliding block (56) with
Slideway (31) axial sliding fit.
6. electric control valve mechanism according to claim 1, which is characterized in that further comprise lead screw supporting element (8)；It is described
It is internal that lead screw supporting element (8) is fixed on the shell (3), and between the motor (4) and planetary roller screw (5),
For being equipped with the axis for being used to support the lead screw (51) rotation across the through-hole of the lead screw (51) and the lead screw (51)
Bearing portion part (9).
7. electric control valve mechanism according to claim 1, which is characterized in that the outer surface of the shell (3), which is equipped with, to be used
In the location and installation portion on the engine that is fixed.
8. electric control valve mechanism according to claim 1, which is characterized in that the motor (4) is integrated with motor in tail portion
Controller (10).
9. engine, including cylinder body, cylinder, corresponding to the intake valve and exhaust valve of each cylinder, which is characterized in that each
The intake valve and exhaust valve of the cylinder are the described in any item electric control valve mechanisms of the claims 1 to 8.
10. automobile, including car body, engine, gearbox and the wheel being sequentially connected with the power output end of the gearbox,
It is characterized in that, the engine is engine described in the claims 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841784.4A CN109519248B (en) | 2017-09-18 | 2017-09-18 | Electric control valve mechanism, engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710841784.4A CN109519248B (en) | 2017-09-18 | 2017-09-18 | Electric control valve mechanism, engine and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109519248A true CN109519248A (en) | 2019-03-26 |
| CN109519248B CN109519248B (en) | 2020-09-29 |
Family
ID=65767780
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710841784.4A Active CN109519248B (en) | 2017-09-18 | 2017-09-18 | Electric control valve mechanism, engine and automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN109519248B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050211205A1 (en) * | 2004-03-24 | 2005-09-29 | Hitachi, Ltd. | Variable valve system with control shaft actuating mechanism |
| JP2006307761A (en) * | 2005-04-28 | 2006-11-09 | Denso Corp | Actuator of valve lift controller |
| JP2008111424A (en) * | 2006-10-02 | 2008-05-15 | Nissan Motor Co Ltd | Variable valve gear for internal combustion engine |
| CN102182529A (en) * | 2011-05-24 | 2011-09-14 | 奇瑞汽车股份有限公司 | Variable lift camshaft |
| US20120298059A1 (en) * | 2011-05-23 | 2012-11-29 | Hyundai Motor Company | Electric continuous variable valve timing apparatus |
| CN106256998A (en) * | 2015-06-22 | 2016-12-28 | 现代自动车株式会社 | Continuous variable air valve lift apparatus and be provided with the electromotor of this device |
-
2017
- 2017-09-18 CN CN201710841784.4A patent/CN109519248B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050211205A1 (en) * | 2004-03-24 | 2005-09-29 | Hitachi, Ltd. | Variable valve system with control shaft actuating mechanism |
| JP2006307761A (en) * | 2005-04-28 | 2006-11-09 | Denso Corp | Actuator of valve lift controller |
| JP2008111424A (en) * | 2006-10-02 | 2008-05-15 | Nissan Motor Co Ltd | Variable valve gear for internal combustion engine |
| US20120298059A1 (en) * | 2011-05-23 | 2012-11-29 | Hyundai Motor Company | Electric continuous variable valve timing apparatus |
| CN102182529A (en) * | 2011-05-24 | 2011-09-14 | 奇瑞汽车股份有限公司 | Variable lift camshaft |
| CN106256998A (en) * | 2015-06-22 | 2016-12-28 | 现代自动车株式会社 | Continuous variable air valve lift apparatus and be provided with the electromotor of this device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109519248B (en) | 2020-09-29 |
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