CN101457676A - Continuous variable valve lift apparatus for engine of vehicle - Google Patents
Continuous variable valve lift apparatus for engine of vehicle Download PDFInfo
- Publication number
- CN101457676A CN101457676A CNA2008101804137A CN200810180413A CN101457676A CN 101457676 A CN101457676 A CN 101457676A CN A2008101804137 A CNA2008101804137 A CN A2008101804137A CN 200810180413 A CN200810180413 A CN 200810180413A CN 101457676 A CN101457676 A CN 101457676A
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- China
- Prior art keywords
- roller
- arm
- lift device
- variable
- variable lift
- 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
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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
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
- F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
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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
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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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
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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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
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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
- F01L2305/00—Valve arrangements comprising rollers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
A variable valve lifting device of a vehicle motor comprises a camshaft with cam; an oscillating arm supported by a supporting part at one side and used for operating the valve at another side; an input arm comprising a roller pressure adding part extending along one direction and a rotation arm extending along another direction; a first roller set on the connection part of the rotation arm and the roller pressure adding part and contacting the cam; a second roller set on the oscillating arm and contacting with the roller contact surface; a variable connection piece capable of connecting the lower end side of an output arm projecting towards the lower side of the rotation arm in aid of an articulated axle and moving the articulated axle along a guide slot formed in a guiding piece; and a variable rotation axle for operating the variable connection piece.
Description
The mutual reference of related application
[0001] the application requires the preference of the 10-2007-0131588 korean patent application submitted on December 14th, 2007, and all the elements of this application are incorporated into this and are used for all purposes by this reference.
Technical field
[0002] the present invention relates to the continuous variable valve lift apparatus of vehicle motor, relate in particular to the continuous variable valve lift apparatus that can change the vehicle motor of valve lifting height continuously.
Background technique
[0003] generally speaking, be formed with the firing chamber in motor, fuel burns in the firing chamber so that vehicle can produce power.Contiguous firing chamber is provided with valve train (valve train), and this valve train comprises the import/exhaust valve that can control air inlet and exhaust.Valve train is come the opening and closing firing chamber by bent axle.
[0004] generally speaking, in this valve train, the cam with regular shape rises to valve the lifting capacity that presets at the most, but the amount of air inlet or exhaust can not be controlled changeably.
[0005] correspondingly, when valve train designed according to the driven at low speed condition, the timing of valve opening and cycle were not enough to satisfy the high-speed driving condition, and when valve train designs according to the high-speed driving condition, again opposite phenomenon can take place.
[0006] more particularly, when the common engine adjustment when being used for high speed, the lifting capacity of valve is set greatlyyer, thus motor has excellent performance when high speed, but when low speed, have the problem that can not satisfy idle stability and torque demand.
[0007] opposite, when the common engine adjustment when being used for low speed, motor has excellent performance under low speed, but has the problem that can not satisfy the output requirement when high speed.Yet in continuous variable valve lift apparatus, the lifting capacity of valve can be controlled changeably according to high speed or low speed, thereby can obtain the more advantages when low speed and high speed.
[0008] recent, the many valve systems that are used to promote the technology of charge efficiency and are used to improve fuel consumption and outputting power are researched and developed.Thereby, following technology is researched and developed: variable induction system (Variable Induction System is abbreviated as VIS), in this system, the length of intake manifold or cross-section area can be according to the rotating ranges of motor and control changeably, so that intake resistance minimizes; Variable Valve Time (Variable Valve Timing is abbreviated as VVT) device is used to control the unlatching timing and the opening of valve, thereby changes overlapping timing (overlap timing); And changeable air valve promotes (Variable Valve Lifting is abbreviated as VVL) device.
[0009] only is used to promote understanding in background technique part of the present invention institute information revealed, do not constituted expressing or any type of hint of prior art known to those skilled in the art already and should not be regarded as this information to general background of the present invention.
Summary of the invention
[0010] All aspects of of the present invention are devoted to provide the variable lift device of motor, and its advantage is to change the size of valve lift amount and the unlatching timing of control valve continuously.
[0011] a kind of variable lift device of vehicle motor can comprise camshaft, and cam forms on this camshaft coaxially; Swing arm, a side of this swing arm are supported part supporting pivotly, the opposite side operated valve of this swing arm; Output arm, the part of its cam is positioned at the top of swing arm; First roller, this first roller are arranged in the output arm and are relative with the supporting portion of swing arm, and the contact cam; Second roller, this second roller are arranged in the swing arm and contact the described part of output arm; Variable link, this variable link connect the part of output arm pivotly and move hinging shaft along guide groove by means of hinging shaft; And running shaft, this rotating shaft eccentric ground connects variable link and actuator shaft, and moves variable link.
[0012] output arm can comprise the roller part of exerting pressure, and this roller part of exerting pressure is extended and comprised the roller contact surface along a direction; And pivoted arm, this pivoted arm is exerted pressure an end partly along another direction extension from roller.
[0013] the roller part of exerting pressure can form and to second roller of lower one to the pushing swing arm along general horizontal direction; And pivoted arm is connected exert pressure part and preset length to extension to lower one of two rollers that form on two intake valves.
[0014] first roller can be arranged on and connect pivoted arm and roller and exert pressure on the attachment portion of part.Roller is exerted pressure and partly can be formed the one single main body with pivoted arm.First roller can be arranged on and connect pivoted arm and roller and exert pressure on the attachment portion of part.Second roller can contact with the roller contact surface of output arm, and its middle roller contact surface has the curved section that at least one presets.
[0015] rotation of actuator shaft can be controlled by actuator 9.First roller can be supported by elastic element, thereby first roller contacts with cam.Guide groove can be an arc.Guide groove can be arranged along general horizontal direction.Guide groove can form on guide member.The supporting portion of swing arm can be the valve clearance adjustment member.
[0016] another aspect of the present invention provides a kind of variable lift device of vehicle motor, and this device can comprise: camshaft, cam form on this camshaft coaxially; Swing arm, a side of this swing arm are supported part supporting pivotly, the opposite side operated valve of this swing arm; Output arm, this output arm comprise roller exert pressure part and pivoted arm, and the roller part of exerting pressure is extended along direction, and pivoted arm extends along another direction from an exert pressure end of part of roller; First roller, this first roller is arranged in the attachment portion, and pivoted arm and the roller part of exerting pressure is connected in this attachment portion, and this first roller contacts with cam, and wherein the attachment portion is arranged to relative with the supporting portion of swing arm; Second roller, this second roller be arranged in the swing arm and be formed on the exert pressure roller contact surface of bottom of part of roller and contact; Variable link, this variable link connects the end portion of pivoted arm pivotly by means of hinging shaft, this pivoted arm to lower one to outstanding and along the guide groove that in guide member, forms and mobile hinging shaft; And running shaft, this rotating shaft eccentric ground connects variable link and actuator shaft, and moves variable link.
[0017] the roller part of exerting pressure can form and to second roller of lower one to the pushing swing arm along substantially horizontal; And pivoted arm two rollers of connection in the middle of two intake valves are exerted pressure and partly and to lower one are presetted length to extension, and wherein first roller is arranged on the upper end part of pivoted arm.The roller contact surface can have at least one curved section that presets.The rotation of actuator shaft can be controlled by actuator.First roller can be supported by elastic element, thereby first roller contacts with cam.
[0018] according to the present invention, the lifting height of intake valve can be controlled continuously and accurately.And the unlatching timing and the open amount of valve can be controlled effectively.Further feature that method and apparatus of the present invention has and advantage will manifest from accompanying drawing or be illustrated in more detail by accompanying drawing, are used from the accompanying drawing of this combination and following detailed description of the present invention and explain principle of the present invention.
Description of drawings
[0019] Fig. 1 is the side view according to an exemplary variable lift device of the present invention.
[0020] Fig. 2 is the plan view of Fig. 1.
[0021] Fig. 3 is the rear view of Fig. 1.
[0022] Fig. 4 (b), 4 (b) are side views, wherein show the low lifting condition according to an exemplary variable lift device of the present invention.
[0023] Fig. 5 (a), 5 (b) are side views, and the height that wherein shows according to an exemplary variable lift device of the present invention promotes condition.
Embodiment
[0024] now each mode of execution of the present invention is elaborated, the example of each mode of execution is shown in the drawings and be illustrated hereinafter.Though describe the present invention, should be understood that this specification does not really want to limit the invention to those exemplary mode of executions in conjunction with exemplary mode of execution.On the contrary, the present invention not only should cover described exemplary mode of execution, and the present invention also should cover as variously substituting of can comprising in the spirit and scope that limit in appending claims, modification, equivalent way and other mode of execution.
[0025] Fig. 1 is that Fig. 2 is the plan view of Fig. 1 according to the side view of the variable lift device of an exemplary mode of execution of the present invention, and Fig. 3 is the rear view of Fig. 1.
[0026] according to an exemplary mode of execution of the present invention, the variable lift device can be applied to the motor that each cylinder has two intake valves.Be understandable that according to each mode of execution of the present invention, the variable lift device can also be applied to each cylinder and have motor more than two intake valves.
[0027] as shown in Figure 1, the variable lift device can comprise camshaft 26, cam 28, first roller 30 comprises exert pressure output arm 14, the second rollers 10 and 12 of part 16 and 18 of pivoted arm 20 and roller, swing arm 6 and 8, valve clearance adjustment member 13, and intake valve 2 and 4.
[0028] and, the variable lift device can comprise: variable link 32, this variable link rotatably joins the part of pivoted arm 20 to by hinging shaft 34; Be rotatably connected to the running shaft 49 of variable link 32; And the actuator shaft 47 that is provided with prejudicially with respect to the center of running shaft 49.Specifically, the hinging shaft 34 that connects pivoted arm 20 and variable link 32 is along the guide groove 40 with the shape of presetting and 42 and move.
That is to say that [0029] second roller 10 and 12 is arranged on the neutral position of the upside of swing arm 6 and 8.Two intake valves 2 and 4 are arranged on an end of swing arm 6 and 8, and valve clearance adjustment member 13 is arranged on swing arm 6 and 8 another ends with respect to second roller 10 and 12.
[0030] being used to operate the output arm 14 of second roller 10 and 12 can be adjacent to second roller 10 of swing arm 6 and 8 and 12 and be provided with.
[0031] in detail, output arm 14 is included on second roller 10 and 12 roller that flatly forms exert pressure part 16 and 18, and the roller part 16 and 18 of exerting pressure is rotatably exerted pressure to second roller 10 and 12 of swing arm 6 and 8 downwards.
[0032] and, referring to Fig. 2, output shaft 14 can comprise pivoted arm 20, pivoted arm 20 presets length along lower one to extending at the most from the roller part 16 and 18 of exerting pressure, and pivoted arm 20 is rotatably connected to variable link 32 by hinging shaft 34.
[0033] two roller part 16 of exerting pressure can contact second roller 10 and 12 of swing arm 4 and 6 with 18 lower surface, and the roller contact surface 22 and 24 with regular curved section is formed in the lower surface.
[0034] referring to Fig. 2, the cam 28 of camshaft 26 is arranged on two rollers and exerts pressure between part 16 and 18, and first roller 30 is handled by cam 28.First roller 30 is arranged on roller and exerts pressure between part 16 and 18, perhaps is arranged between intake valve 2 and 4, as shown in Figure 2.
[0035] and, the end portion of pivoted arm 20 is connected to variable link 32 by hinging shaft 34, and is as indicated above.
[0036] hinging shaft 34 that is used to connect variable link 32 and pivoted arm 20 joins arc guide barrel 40 and 42 slidably to, and arc guide barrel 40 and 42 is formed among the guide member 36 and 38 that is arranged on both sides.
[0037] correspondingly, hinging shaft 34 can move back and forth in guide groove 40 and 42, and is connected to the pivoted arm 20 of hinging shaft thereby can rotates with respect to hinging shaft 34 front and back.
[0038] elastic element 44 that forms coil spring produces restoring force all the time so that first roller 30 contacts with cam 28.
[0039] as mentioned above, when pivoted arm 20 when guide groove 40 and 42 moves back and forth, form therein the roller part 16 and 18 of exerting pressure and also rotate with respect to hinging shaft 34 front and back.
[0040] and, as mentioned above, the variable link 32 that is connected to pivoted arm 20 rotatably join to running shaft 49 and roughly along upward to inclination, and running shaft 49 is owing to the effect of actuator shaft 47 is rotated.
[0041] actuator shaft 47 can rotate owing to the effect of unshowned actuator, and integrally formed with it running shaft 49 is rotation prejudicially owing to the effect of actuator shaft 47, thereby variable link 32 moves back and forth on left and right directions.
That is to say that [0042] running shaft 49 moves hinging shaft 34 along the guide groove 40 and 42 that is formed in guide member 36 and 38.
[0043] correspondingly, as describing in detail hereinafter, when pivoted arm 20 during with respect to hinging shaft 34 rotation, the roller part 16 of exerting pressure can change to change the lifting capacity of intake valve 2 and 4 with that part that the swing arm 6 and 8 second roller 10 are contacted with 12 with 18.
[0044] in variable lift device according to an exemplary mode of execution of the present invention, when camshaft 26 when normal direction is rotated, cam 28 moves down first roller 30.
[0045] then, first roller 30 is pushed to the left side, thereby, comprise that pivoted arm 20 and roller exert pressure the output arm 14 of part 16 and 18 as shown in Figure 1 along counterclockwise rotating on the basis of hinging shaft 34.
[0046] by this way, when roller is exerted pressure part 16 and 18 when moving, the swing arm 6 and 8 second roller 10 and 12 according to roller exert pressure the shape of part 16 and 18 along lower one to being urged.
[0047] referring to Fig. 4 (a), variable running shaft 47 is rotated in the counterclockwise by means of the actuator (not shown), thereby reduces the lifting capacity of valve according to the drive condition of motor.Be understandable that, can in other traditional approachs, use various actuators to rotate according to variable running shaft of the present invention.
[0048] then, variable link 32 along the upper right to being pulled.
[0049] correspondingly, the pivoted arm 20 that is connected to variable link 32 moves in guide groove 40 and 42, and wherein hinging shaft 34 is along moving to right.
[0050] then, the roller of output arm 14 is exerted pressure, and to be the basis with hinging shaft 34 be rotated counterclockwise around second roller 10 and 12 of swing arm 6 and 8 part 16 and 18.
[0051] as mentioned above, continuous variable valve lift apparatus has such as the shown state of solid line among Fig. 4 (b).
[0052] in this state, cam 28 rotates in the counterclockwise the roller 30 of winning, thereby output arm 14 rotates in the counterclockwise around the hinging shaft 34 as the center of circle, thereby roller is exerted pressure part 16 and 18 along lower one to exerting pressure towards second roller 10 and 12.
[0053] by this way, referring to Fig. 4 (b), when the roller of output arm 14 is exerted pressure that part 16 and 18 rotates in the counterclockwise and exerted pressure the contact segment that forms between the bottom of part 16 and 18 and second roller 10 and 12 when direction moves left at roller, be delayed in order to the timing of moving second roller 10 and 12, thereby the valve lifting height is minimized.
[0054] on the contrary, referring to Fig. 5 (a), actuator shaft 47 deasil rotates to strengthen the valve lifting height.
[0055] then, the running shaft 49 that forms with actuator shaft 47 together rotates, thus the variable link 32 that is connected thereto along lower one to being urged.
[0056] correspondingly, the pivoted arm 20 that is connected to variable link 32 moves in guide groove 40 and 42, and wherein hinging shaft 34 moves along direction left.
[0057] at this moment, the roller part 16 and 18 of exerting pressure is deasil rotated with respect to hinging shaft 34 second roller 10 and 12 around swing arm 6 and 8 by means of the effect of pivoted arm 20.
[0058] by this way, referring to Fig. 5 (b), thereby thereby when the roller of output arm 14 exert pressure part 16 and 18 deasil rotate roller exert pressure the contact segment that forms between the bottom of part 16 and 18 and second roller 10 and 12 along move to right roller exert pressure part 16 and 18 in a high position when second roller 10 and 12 is exerted pressure, accelerate in order to the timing of moving second roller 10 and 12.
[0059] correspondingly, when cam 28 rotations, first roller 30 is pushed and output arm 14 serves as to exert pressure along rotation counterclockwise and to second roller 10 and 12 in the basis with hinging shaft 34.Then, roller is exerted pressure part 16 and 18 along counterclockwise moving, and part 16 and 18 is early than normal time second roller 10 and 12 being exerted pressure thereby roller is exerted pressure.
[0060] exert pressure the roller contact surface 22 of part 16 and 18 and 24 shape when being pressed when second roller 10 and 12 according to roller, the lifting height maximization of valve is shown in Fig. 5 (b).
[0061] in the variable lift device of operation as mentioned above, electronic control unit (Electrical Control Unit, be abbreviated as ECU) according to the driving situation of motor and the control operation part, thus can control the lifting height of intake valve 2 and 4 continuously and accurately.Do for convenience of explanation and in claims accurately to limit, term " makes progress " or " top ", " downwards " or " bottom ", " preceding " or " back ", " inboard " or the like, is used for describing these features with reference to each position of the feature of exemplary mode of execution illustrated in the accompanying drawings.
[0062] be in order to illustration and explanation above to the description of particular exemplary mode of execution of the present invention.These descriptions be not be exclusive character or be used for limiting the invention to described precise forms, and obviously can make many modifications and variations according to above-mentioned instruction.The selection of each exemplary mode of execution and explanation are in order to explaining the practical application of principles more of the present invention and these principles so that those skilled in the art make and use exemplary mode of execution of the present invention with and various alternative and modification.Scope of the present invention should by appended claim with and equivalents limit.
Claims (20)
1, a kind of variable lift device of vehicle motor comprises:
Camshaft, cam form on this camshaft coaxially;
Swing arm, a side of this swing arm are supported part supporting pivotly, the opposite side operated valve of this swing arm;
Output arm, wherein the top of output arm is positioned at the top of swing arm;
First roller, this first roller are arranged on the output arm and are relative with the supporting portion of swing arm, and the contact cam;
Second roller, this second roller are arranged in the swing arm and contact the top of output arm;
Variable link, this variable link connect the bottom of output arm pivotly and move hinging shaft along guide groove by means of hinging shaft; And
Running shaft, this rotating shaft eccentric ground connects variable link and actuator shaft, and moves variable link.
2, variable lift device according to claim 1, wherein output arm comprises:
The roller part of exerting pressure, this roller part of exerting pressure is extended and is comprised the roller contact surface along a direction; And
Pivoted arm, this pivoted arm is exerted pressure an end partly along another direction extension from roller.
3, variable lift device according to claim 2, its middle roller are exerted pressure part along general horizontal direction formation and to second roller of lower one to the pushing swing arm; And pivoted arm is connected exert pressure part and preset length to extension to lower one of two rollers that form on two intake valves.
4, variable lift device according to claim 2, wherein first roller is arranged on and connects pivoted arm and roller and exert pressure on the attachment portion of part.
5, variable lift device according to claim 2, its middle roller are exerted pressure partly and pivoted arm forms the one single main body.
6, variable lift device according to claim 5, wherein first roller is arranged on and connects pivoted arm and roller and exert pressure on the attachment portion of part.
7, variable lift device according to claim 2, wherein second roller contacts with the roller contact surface of output arm, and its middle roller contact surface has the curved section that at least one presets.
8, variable lift device according to claim 1, wherein the rotation of actuator shaft is controlled by actuator.
9, variable lift device as claimed in claim 1, wherein first roller is supported by elastic element, thus first roller contacts with cam.
10, variable lift device according to claim 1, wherein guide groove is an arc.
11, variable lift device according to claim 1, wherein guide groove is arranged along general horizontal direction.
12, variable lift device according to claim 1, wherein guide groove forms on guide member.
13, variable lift device according to claim 1, wherein the supporting portion of swing arm is the valve clearance adjustment member.
14, a kind of variable lift device of vehicle motor comprises:
Camshaft, cam form on this camshaft coaxially;
Swing arm, a side of this swing arm are supported part supporting pivotly, the opposite side operated valve of this swing arm;
Output arm, this output arm comprise roller exert pressure part and pivoted arm, and the roller part of exerting pressure is extended along direction, and pivoted arm extends along another direction from an exert pressure end of part of roller;
First roller, this first roller is arranged in the attachment portion, and pivoted arm and the roller part of exerting pressure is connected on this attachment portion, and this first roller contacts with cam, and wherein the attachment portion is arranged to relative with the supporting portion of swing arm;
Second roller, this second roller be arranged in the swing arm and be formed on the exert pressure roller contact surface of bottom of part of roller and contact;
Variable link, this variable link connects the end portion of pivoted arm pivotly by means of hinging shaft, this pivoted arm to lower one to outstanding and along the guide groove that in guide member, forms and mobile hinging shaft; And
Running shaft, this rotating shaft eccentric ground connects variable link and actuator shaft, and moves variable link.
15, variable lift device according to claim 14, its middle roller are exerted pressure part along substantially horizontal formation and to second roller of lower one to the pushing swing arm; And pivoted arm two rollers of connection in the middle of two intake valves are exerted pressure and partly and to lower one are presetted length to extension, and wherein first roller is arranged on the upper end part of pivoted arm.
16, variable lift device according to claim 14, its middle roller contact surface has the curved section that at least one presets.
17, variable lift device according to claim 14, wherein the rotation of actuator shaft is controlled by actuator.
18, variable lift device according to claim 14, wherein first roller is supported by elastic element, thus first roller contacts with cam.
19, a kind of motor comprises:
Intake valve; And
Variable lift device according to claim 1.
20, a kind of motor comprises:
Intake valve; And
Variable lift device according to claim 14.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070131558A KR100969368B1 (en) | 2007-12-14 | 2007-12-14 | Variable valve lift apparatus of engine for vehicles |
| KR1020070131558 | 2007-12-14 | ||
| KR10-2007-0131558 | 2007-12-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101457676A true CN101457676A (en) | 2009-06-17 |
| CN101457676B CN101457676B (en) | 2013-03-27 |
Family
ID=40768756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101804137A Expired - Fee Related CN101457676B (en) | 2007-12-14 | 2008-11-26 | Continuous variable valve lift apparatus for engine of vehicle |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100969368B1 (en) |
| CN (1) | CN101457676B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477879A (en) * | 2010-11-30 | 2012-05-30 | 现代自动车株式会社 | Continuous variable valve lift apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101976761B1 (en) | 2012-10-16 | 2019-05-09 | 콘티넨탈 오토모티브 시스템 주식회사 | Method for controlling ignition timing of vvl typed engine cylinder |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4025590B2 (en) | 2002-06-24 | 2007-12-19 | 株式会社オティックス | Variable valve mechanism |
| JP3982490B2 (en) * | 2003-12-18 | 2007-09-26 | トヨタ自動車株式会社 | Variable valve mechanism |
| JP2006152926A (en) * | 2004-11-30 | 2006-06-15 | Hitachi Ltd | Variable valve gear in internal combustion engine |
| JP4771874B2 (en) | 2005-09-15 | 2011-09-14 | 株式会社オティックス | Variable valve mechanism |
| JP2007224817A (en) | 2006-02-23 | 2007-09-06 | Toyota Motor Corp | Variable valve gear for internal combustion engine |
| JP4697011B2 (en) | 2006-04-03 | 2011-06-08 | トヨタ自動車株式会社 | Variable valve mechanism |
-
2007
- 2007-12-14 KR KR1020070131558A patent/KR100969368B1/en active IP Right Grant
-
2008
- 2008-11-26 CN CN2008101804137A patent/CN101457676B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477879A (en) * | 2010-11-30 | 2012-05-30 | 现代自动车株式会社 | Continuous variable valve lift apparatus |
| CN102477879B (en) * | 2010-11-30 | 2016-05-04 | 现代自动车株式会社 | Continuous variable air valve lift apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100969368B1 (en) | 2010-07-09 |
| KR20090064003A (en) | 2009-06-18 |
| CN101457676B (en) | 2013-03-27 |
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