CN102383889A - Variable valve actuator - Google Patents
Variable valve actuator Download PDFInfo
- Publication number
- CN102383889A CN102383889A CN2010105563480A CN201010556348A CN102383889A CN 102383889 A CN102383889 A CN 102383889A CN 2010105563480 A CN2010105563480 A CN 2010105563480A CN 201010556348 A CN201010556348 A CN 201010556348A CN 102383889 A CN102383889 A CN 102383889A
- Authority
- CN
- China
- Prior art keywords
- hydraulic pressure
- rocking arm
- arm hydraulic
- pressure supply
- supply line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0031—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of tappet or pushrod length
-
- 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
-
- 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
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
- F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
- F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
- F01L9/14—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem the volume of the chamber being variable, e.g. for varying the lift or the timing of a valve
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
A variable valve actuator may include a rocker arm which may be pivotally connected to a rocker shaft, and of which a rocker arm hydraulic pressure supply line and a rocker arm hydraulic pressure exhaust line may be formed therein, a variable control piston which may be fluid-connected to the rocker arm hydraulic pressure supply line and slidably interferes the rocker arm hydraulic pressure exhaust line to selectively close the rocker arm hydraulic pressure exhaust line according to supplying hydraulic pressure of the rocker arm hydraulic pressure supply line, an actuating portion which may be selectively fluid-connected to the rocker arm hydraulic pressure supply line and the rocker arm hydraulic pressure exhaust line by the variable control piston such that the actuating portion selectively protrudes according to the supplying hydraulic pressure of the rocker arm hydraulic pressure supply line, and a valve unit opened according to reciprocation of the actuating portion.
Description
Cross reference with related application
The preference that the korean patent application that the application requires to submit in Korea S Department of Intellectual Property on August 31st, 2010 is 10-2010-0085148 number, the full content of above-mentioned application is incorporated into this and is used for this all purposes of quoting.
Technical field
The present invention relates to a kind of variable valve actuator.More specifically, the application relates to variable valve actuator, and its variable control section and actuation part optionally provide hydraulic pressure so that change valve lift according to engine loading, and this variable control section and actuation part and rocking arm integrally form.
Background technique
Combustion fuel produces power to internal-combustion engine in this indoor air dielectric through being inhaled in the firing chamber.Intake valve is operated through camshaft so that suck air, and air is inhaled into the firing chamber when intake valve is opened.In addition, exhaust valve is through the camshaft operation, and combustion gas are discharged from the firing chamber when exhaust valve is opened.
The optimal operations of intake valve and exhaust valve depends on the rotating speed of motor.That is, the best lift of valve or best opening/closing depend on the rotating speed of motor correct time.In order to obtain this optimal valve operation of depending on engine speed, carried out various research.For example, for lift range variable (lift range variable; VVL) study, this lift range variable depends on engine speed and realizes different lifts.
In traditional technology, used a kind of hydraulic variable valve control apparatus of ADD-ON type.
In the hydraulic variable valve control apparatus of ADD-ON type, actuator piston and control valve are installed to a housing.
Because this control valve and check ball are installed in the body, suitable big of the weight of this equipment, and owing to actuator piston is connected to a screw rod, so the size of piston cavity also is relatively large and heavier relatively.
Because the closed circuit that pressure forms is relatively large, so the response of system may postpone, and makes the degradation of motor thus.
The information that is disclosed in this background technique part only is intended to deepen the understanding to general background technique of the present invention, does not admit or hint in any form that this information constitutes to be existing technology known in those skilled in the art and should not be regarded as.
Summary of the invention
All aspects of of the present invention are devoted to provide a kind of variable valve actuator; Its variable control section and actuation part optionally provide hydraulic pressure so that change valve lift according to engine loading; This variable control section and actuation part and rocking arm integrally form, and this variable valve actuator can improve the response of system.
In one aspect of the invention, this variable valve actuator can comprise; Rocking arm, this rocking arm can be connected to pitman arm shaft by pivotally, and the rocking arm hydraulic pressure supply line of this rocking arm and rocking arm hydraulic pressure are discharged line and can be formed in this rocking arm; Wherein actuation part can comprise: screw rod; This screw rod can be installed in an end of rocking arm; Fluid is connected to this rocking arm hydraulic pressure supply line being used for supplying with hydraulic pressure from this rocking arm hydraulic pressure supply line options property ground, and fluid is connected to this rocking arm hydraulic pressure and discharges line and discharge line to be used for that hydraulic pressure is discharged to this rocking arm hydraulic pressure; Actuator piston, this actuator piston can be slidably mounted in the screw rod and according to the hydraulic pressure that supplies to screw rod through rocking arm hydraulic pressure supply line and optionally move up and down; Check ball, this check ball can be installed in rocking arm hydraulic pressure supply line and rocking arm hydraulic pressure and discharge between the line, so that be used for optionally will be from the hydraulic pressure supply of rocking arm hydraulic pressure supply line to actuator piston; And actuator springs, the rocking arm hydraulic pressure supply linear elasticity ground of this actuator springs in actuator piston supports this check ball; Wherein variable control section can comprise; Variable control piston; This variable control piston can fluid be connected to rocking arm hydraulic pressure supply line and interferes rocking arm hydraulic pressure to discharge line slidably, and according to the hydraulic pressure of the rocking arm hydraulic pressure supply line that supplies to rocking arm hydraulic pressure supply line one end optionally closure rocker arm hydraulic pressure discharge line; And variable control spring, this variable control spring flexibly should be discharged line to open this rocking arm hydraulic pressure by variable control piston bias voltage; And wherein can open valve unit according to the pivoting action of rocking arm through actuator piston.
This actuation part can also comprise: Returnning spring, and it is the bias voltage actuator piston towards rocking arm hydraulic pressure supply linear elasticity ground; And first stop ring, it is formed between screw rod and the actuator piston does not throw off from screw rod to support Returnning spring.
This actuation part can also comprise the ball-and-socket assembly, and the open part of this ball-and-socket assembly can form on the ball-and-socket assembly so that actuator piston is connected to by pivotally on this ball-and-socket assembly; Wherein this ball-and-socket assembly can comprise: retaining part, and the open part of this retaining part can be formed at the top of retaining part, and notch portion can be formed at the side of retaining part to hold the piston bottom of actuator piston slidably; And ball-and-socket, it can be connected to retaining part and contact valve unit.
This variable control section can also comprise: plate, this plate support variable control spring in its underpart, and second stop ring, and this second stop ring supports this plate.
This variable valve actuator can also comprise solenoid valve, the supply hydraulic pressure of this electromagnetic valve rocking arm hydraulic pressure supply line.
This variable valve actuator can also comprise actuation part patchhole and variable control section patchhole; This actuation part patchhole is formed into an end of rocking arm; And this variable control section patchhole is formed on the next door of actuation part patchhole, and wherein this actuation part can be inserted into the actuation part patchhole and this variable control section can be inserted into variable control section patchhole.
In another aspect of this invention, this variable valve actuator can comprise: rocking arm, and this rocking arm can be connected to pitman arm shaft by pivotally, and the rocking arm hydraulic pressure supply line of this rocking arm and rocking arm hydraulic pressure are discharged line and can be formed in this rocking arm; Variable control piston, this variable control piston can fluid be connected to rocking arm hydraulic pressure supply line and interfere rocking arm hydraulic pressure to discharge line slidably, with according to the supply hydraulic pressure of rocking arm hydraulic pressure supply line optionally closure rocker arm hydraulic pressure discharge line; Actuation part, this actuation part can be connected to rocking arm hydraulic pressure supply line and rocking arm hydraulic pressure discharge line through this variable control piston selectivity fluid, thereby makes actuation part optionally outstanding according to the supply hydraulic pressure of rocking arm hydraulic pressure supply line; And valve unit, this valve unit is opened according to the to-and-fro motion of actuation part; Wherein this variable valve actuator can also comprise actuation part patchhole and variable control section patchhole; This actuation part patchhole is formed into an end of rocking arm; And this variable control section patchhole is formed on the next door of actuation part patchhole, and wherein this actuation part can be inserted into the actuation part patchhole and this variable control section can be inserted into variable control section patchhole.
This actuation part can comprise: screw rod, this screw rod are connected to the actuation part patchhole and optionally supply with the supply hydraulic pressure from rocking arm hydraulic pressure supply line; Actuator piston, this actuator piston can be slidably mounted in the screw rod and according to the supply hydraulic pressure that supplies to screw rod from rocking arm hydraulic pressure supply line and optionally move up and down; Check ball, this check ball can be installed in rocking arm hydraulic pressure supply line and rocking arm hydraulic pressure and discharge between the line, so that be used for optionally will be from the supply hydraulic pressure supply of rocking arm hydraulic pressure supply line to actuator piston; And actuator springs, this actuator springs supports this check ball towards rocking arm hydraulic pressure supply linear elasticity ground.
This actuation part can comprise: Returnning spring, and it supports actuator piston towards rocking arm hydraulic pressure supply linear elasticity ground; And first stop ring, it can be inserted between screw rod and the actuator piston to prevent that actuator piston and Returnning spring from throwing off.
This actuation part can also comprise the ball-and-socket assembly, and the open part of this ball-and-socket assembly can form on the ball-and-socket assembly so that actuator piston is connected to by pivotally on this ball-and-socket assembly; Wherein this ball-and-socket assembly can comprise: retaining part, the open part of this retaining part can be formed at the top of retaining part to hold the piston bottom therein, and notch portion can be formed at the side of retaining part; And ball-and-socket, it can be connected to retaining part and contact valve unit slidably.
This variable control section can also comprise: plate, this plate support variable control spring and discharge line to open rocking arm hydraulic pressure, and second stop ring, and this second stop ring supports this plate.
This variable valve actuator can also comprise solenoid valve, the supply hydraulic pressure of this electromagnetic valve rocking arm hydraulic pressure supply line.
As stated; Variable valve actuator according to exemplary of the present invention can comprise variable control section and actuation part; This variable control section and actuation part are optionally supplied with hydraulic pressure and are changed valve lift with the load according to motor; This variable control section and actuation part and rocking arm integrally form, and this variable valve actuator can use simple design to improve the response of system.
Through the accompanying drawing of including this paper in and the embodiment that is used to explain some principle of the present invention subsequently with accompanying drawing, further feature that method and apparatus of the present invention had and advantage will become clear or be able to explanation more particularly.
Description of drawings
Fig. 1 is the stereogram according to the variable valve actuator of illustrative embodiments of the invention.
Fig. 2 is the three-dimensional exploded view according to the variable valve actuator of illustrative embodiments of the invention.
Fig. 3 is the figure according to the pitman arm shaft of the variable valve actuator of illustrative embodiments of the invention.
Fig. 4 to Fig. 6 shows the figure according to the drive pattern variation of variable valve actuator from low lift mode to the high lift pattern of illustrative embodiments of the invention.
Fig. 7 to Fig. 9 shows the figure according to the drive pattern variation of variable valve actuator from the high lift pattern to low lift mode of illustrative embodiments of the invention.
Figure 10 is the plotted curve of valve lift, and its variable valve actuator drive pattern from the high lift pattern to low lift mode that shows according to illustrative embodiments of the invention changes.
It should be understood that accompanying drawing has presented the reduced representation to a certain degree of each characteristic of elaboration basic principle of the present invention, thereby be not necessarily to draw in proportion.Specific design feature of the present invention disclosed herein comprises for example specific dimensions, orientation, position and shape, with partly being confirmed by the application and the Environmental Conditions of concrete intention.
In the accompanying drawings, reference character is represented identical or equivalent part of the present invention in whole several accompanying drawings.
Embodiment
Now will be at length with reference to each embodiment of the present invention, the instance of these embodiments is shown in the accompanying drawings and is described below.Although the present invention will combine with exemplary and describe, should recognize that this specification is not to be intended to the present invention is restricted to those exemplary.On the contrary, the present invention is intended to not only cover these exemplary, and covering can be included in various selection forms, modification, equivalents and other embodiment within the spirit and scope of the present invention that limited accompanying claims.
Specifically describe exemplary of the present invention below with reference to accompanying drawing.
Fig. 1 is the stereogram according to the variable valve actuator of illustrative embodiments of the invention,
Fig. 2 is the three-dimensional exploded view according to the variable valve actuator of illustrative embodiments of the invention,
Fig. 3 is the figure according to the pitman arm shaft of the variable valve actuator of illustrative embodiments of the invention.
Fig. 4 to Fig. 6 shows the figure according to the drive pattern variation of variable valve actuator from low lift mode to the high lift pattern of illustrative embodiments of the invention.
Fig. 7 to Fig. 9 shows the figure according to the drive pattern variation of variable valve actuator from the high lift pattern to low lift mode of illustrative embodiments of the invention.
Figure 10 is the plotted curve of valve lift, and its variable valve actuator drive pattern from the high lift pattern to low lift mode that shows according to illustrative embodiments of the invention changes.
Though in Fig. 1, be set to exhaust valve system according to the variable valve actuator of exemplary of the present invention, this variable valve actuator can be set to the intake valve system.
In the operation of supplying with hydraulic pressure, hydraulic pressure is fed into rocking arm hydraulic pressure supply line through the supply line 320 that is used for engine lubrication and rocking arm hydraulic pressure is discharged line 314 and 312, and supply to the actuation part hydraulic pressure supply line 310 of solenoid valve 400 and pitman arm shaft 300.This hydraulic pressure is discharged from through actuator piston 550 then.
Referring to figs. 2 and 3; Variable valve actuator comprises pitman arm shaft 300, actuation part 500 and valve unit 700; supply line that is used for engine lubrication 320 and the actuation part hydraulic pressure supply line 310 of pitman arm shaft 300 are formed in the pitman arm shaft 300; actuation part 500 is hingedly connected to pitman arm shaft 300, and valve unit 700 is opened by actuation part 500.
Variable control section 600 is installed between actuation part 500 and the pitman arm shaft 300, and through controlling valve lift with cooperating of actuation part 500.
Actuation part 500 comprises screw rod 510, actuator piston 550 and first stop ring 560; This screw rod 510 is installed in an end of rocking arm 200; Be connected to rocking arm hydraulic pressure supply line 314 through oil-in 582; And form cylindrically, actuator piston 550 is inserted in the screw rod 510 and by Returnning spring 520 and flexibly supports, and first stop ring 560 supports Returnning springs 520 and do not thrown off.
The screw rod bottom 514 that is formed on screw rod 510 bottoms is a hollow, and oil-in 582 is formed on a side of screw rod 510, be used for and rocking arm hydraulic pressure supply line 314 UNICOMs, and screw flutes 512 is along the periphery formation of screw rod 514.
Actuation part 500 further comprises actuator piston 550, actuator springs 540, check ball 530 and ball-and-socket attachment portion 570; This actuator piston 550 is inserted into screw rod bottom 514 and accepts hydraulic pressure through screw rod 510; This actuator springs 540 is inserted into the spring patchhole 552 that is formed in the actuator piston 550; This check ball 530 is flexibly supported and is controlled the oil export 590 entering spring patchholes 552 of hydraulic flow through screw rod 510 by actuator springs 540, these ball-and-socket attachment portion 570 pivotallies are connected to the piston bottom 556 of actuator piston 550.
The piston bottom 556 of actuator piston 550 is formed as sphere and pistion recess 554 and forms above that being used for and be connected with ball-and-socket attachment portion 570.
Ball-and-socket attachment portion 570 comprises retaining part 572 and ball-and-socket 574.An open part 576 is formed into the upside of retaining part 572, and a notch portion 578 is formed into a side of retaining part 572.The piston bottom 556 of actuator piston 550 is inserted through open part 576 and this open part 576 hooks around pistion recess 554.
Thus, actuator piston 550 is connected with ball-and-socket attachment portion 570 pivotallies.Actuation part 500 is inserted into the actuation part patchhole 210 that is formed on rocking arm 200 1 ends.Nut 580 can be used to install screw rod 510.
Variable control section 600 comprises variable control piston 610, variable control spring 620, plate 630 and second stop ring 640; This variable control piston 610 according to from the supply hydraulic pressure of rocking arm hydraulic pressure supply line 314 optionally closure rocker arm hydraulic pressure discharge line 312; This variable control spring 620 flexibly supports variable control piston 610; This plate 630 supports variable control springs 620 and forms porosely onboard, and this second stop ring 640 is used for dunnage 630.
Variable control section 600 is inserted into variable control section patchhole 220, and this variable control section patchhole 220 is formed on the next door of actuation part patchhole 210.
Below,, to Fig. 9 the operation according to the variable valve actuator of illustrative embodiments of the invention is described with reference to figure 4.
In the high lift pattern, thereby solenoid valve 400 is controlled to connect supply hydraulic pressure.
As shown in Figure 4, rocking arm hydraulic pressure supply line 314 is supplied with hydraulic pressure through the actuation part hydraulic pressure supply line 310 that is formed in the pitman arm shaft 300.
Thus, as shown in Figure 4, variable control piston 610 is owing to the hydraulic pressure of supplying with from rocking arm hydraulic pressure supply line 314 moves down.
Meanwhile, as shown in Figure 5, through oil-in 582 hydraulic pressure supply is arrived screw rod 510.
The check ball 530 of screw rod 510 is opened oil export 590, and hydraulic pressure is fed into actuator piston 550 to move down then.
Then, rocking arm hydraulic pressure is discharged line 312 and has been full of hydraulic pressure, and wherein rocking arm hydraulic pressure discharge line 312 is closed through variable control piston.
At last, it is equal that the pressure in the actuator piston 550 and pressure in the rocking arm hydraulic pressure discharge line 312 become, and the restoring force of check ball 530 through actuator springs 540 moves up.
As shown in Figure 6, actuator piston 550 is discharged the oil return line 650 that line 312 forms sealing with rocking arm hydraulic pressure.
That is, the oil return line 650 of sealing is restricted to the volume of being discharged line 312 sealings by actuator piston 550 and rocking arm hydraulic pressure.
As stated, when the oil return line 650 of sealing formed, rocking arm 200 is pivoted owing to the rotation of driving cam 800, and promoted valve unit 700.
Thus, realized the high lift pattern.
When drive pattern from the high lift patterns of change to low lift mode the time, to shown in Figure 9, the oil of supply is controlled like Fig. 7.
As shown in Figure 7, the hydraulic pressure that under the high lift pattern, forms the oil return line 650 of sealing is released.
The side that oil is discharged line through the bottom of plate 630, variable control section patchhole 220 or rocking arm hydraulic pressure is released.
After oil was discharged, as shown in Figure 8, actuator piston 550 formed control displacement " A " owing to the restoring force of Returnning spring 520 moves up.
Form control displacement " A " afterwards, ball-and-socket attachment portion 570 promotes valve unit 700 through the rotation of driving cam 800, and has realized low lift mode thus.
Because actuator piston 550 pivotallies are connected to ball-and-socket attachment portion 570, so ball-and-socket attachment portion 570 promotes valve unit 700 without interruption.
As stated, can form the small volume of sealing oil return line 650 according to the variable valve actuator of exemplary of the present invention, the speed of response of system can be accelerated and variable control performance also can be able to improve thus.
Figure 10 is the plotted curve of valve lift, and its variable valve actuator drive pattern from the high lift pattern to low lift mode that shows according to illustrative embodiments of the invention changes.Shown in figure 10, valve lift and valve timing can change simultaneously.
For the ease of in accompanying claims, explaining and explication, term " on ", D score, " interior " and " outward " position that is used for the characteristic of reference exemplary shown in the figure comes these characteristics are described.
The description that the front is appeared the concrete exemplary of the present invention is from explanation and purpose of description.The description of front is not wanted to become and is had no to omit, and neither want to be restricted to disclosed precise forms to the present invention, and obviously, a lot of to change and change all be possible according to above-mentioned instruction.Selecting the exemplary line description of going forward side by side is in order to explain certain principles of the present invention and practical application thereof, thereby makes others skilled in the art can realize and utilize various exemplary of the present invention and various selection form and modification.Scope of the present invention is intended to limited appended claims and equivalents thereof.
Claims (15)
1. a variable valve actuator comprises;
Rocking arm, this swing arm pivot shaft is rotationally coupled to pitman arm shaft, and the rocking arm hydraulic pressure supply line of this rocking arm and rocking arm hydraulic pressure are discharged line and is formed in this rocking arm;
Wherein actuation part comprises:
Screw rod; This screw rod is installed in an end of rocking arm; Fluid is connected to this rocking arm hydraulic pressure supply line being used for supplying with hydraulic pressure from this rocking arm hydraulic pressure supply line options property ground, and fluid is connected to this rocking arm hydraulic pressure and discharges line and discharge line to be used for that hydraulic pressure is discharged to this rocking arm hydraulic pressure;
Actuator piston, this actuator piston are slidably mounted in the screw rod and according to the hydraulic pressure that supplies to screw rod through rocking arm hydraulic pressure supply line and optionally move up and down;
Check ball, this check ball are installed in rocking arm hydraulic pressure supply line and rocking arm hydraulic pressure and discharge between the line, so that be used for optionally will be from the hydraulic pressure supply of rocking arm hydraulic pressure supply line to actuator piston; And
Actuator springs, this actuator springs rocking arm hydraulic pressure supply linear elasticity ground in actuator piston supports this check ball;
Wherein variable control section comprises;
Variable control piston; This variable control piston fluid is connected to rocking arm hydraulic pressure supply line and interferes rocking arm hydraulic pressure to discharge line slidably, and according to the hydraulic pressure of the rocking arm hydraulic pressure supply line that supplies to rocking arm hydraulic pressure supply line one end optionally closure rocker arm hydraulic pressure discharge line; And
Variable control spring, this variable control spring flexibly should be discharged line to open this rocking arm hydraulic pressure by variable control piston bias voltage; And
Wherein open valve unit according to the pivoting action of rocking arm through actuator piston.
2. variable valve actuator according to claim 1, wherein this actuation part also comprises:
Returnning spring, it is the bias voltage actuator piston towards rocking arm hydraulic pressure supply linear elasticity ground; And
First stop ring, it is formed between screw rod and the actuator piston does not throw off from screw rod to support Returnning spring.
3. variable valve actuator according to claim 1, wherein this actuation part also comprises the ball-and-socket assembly, the open part of this ball-and-socket assembly is forming so that actuator piston is connected to by pivotally on this ball-and-socket assembly on the ball-and-socket assembly.
4. variable valve actuator according to claim 3, wherein this ball-and-socket assembly comprises:
Retaining part, the open part of this retaining part is formed at the top of retaining part, and notch portion is formed at the side of retaining part to hold the piston bottom of actuator piston slidably; And
Ball-and-socket, it is connected to retaining part and contact valve unit.
5. variable valve actuator according to claim 1, wherein this variable control section also comprises:
Plate, this plate support variable control spring in its underpart; And
Second stop ring, this second stop ring supports this plate.
6. variable valve actuator according to claim 1, wherein this variable valve actuator also comprises solenoid valve, the supply hydraulic pressure of this electromagnetic valve rocking arm hydraulic pressure supply line.
7. variable valve actuator according to claim 1; Wherein this variable valve actuator also comprises actuation part patchhole and variable control section patchhole; This actuation part patchhole is formed into an end of rocking arm; And this variable control section patchhole is formed on the next door of actuation part patchhole, and
Wherein this actuation part is inserted into the actuation part patchhole and this variable control section is inserted into variable control section patchhole.
8. variable valve actuator comprises:
Rocking arm, this swing arm pivot shaft is rotationally coupled to pitman arm shaft, and the rocking arm hydraulic pressure supply line of this rocking arm and rocking arm hydraulic pressure are discharged line and is formed in this rocking arm;
Variable control piston, this variable control piston fluid are connected to rocking arm hydraulic pressure supply line and interfere rocking arm hydraulic pressure to discharge line slidably, with according to the supply hydraulic pressure of rocking arm hydraulic pressure supply line optionally closure rocker arm hydraulic pressure discharge line;
Actuation part, this actuation part is connected to rocking arm hydraulic pressure supply line through this variable control piston selectivity fluid and rocking arm hydraulic pressure is discharged line, thereby makes actuation part optionally outstanding according to the supply hydraulic pressure of rocking arm hydraulic pressure supply line; And
Valve unit, this valve unit is opened according to the to-and-fro motion of actuation part.
9. variable valve actuator according to claim 8; Wherein this variable valve actuator also comprises actuation part patchhole and variable control section patchhole; This actuation part patchhole is formed into an end of rocking arm; And this variable control section patchhole is formed on the next door of actuation part patchhole, and
Wherein this actuation part is inserted into the actuation part patchhole and this variable control section is inserted into variable control section patchhole.
10. variable valve actuator according to claim 9, wherein this actuation part comprises:
Screw rod, this screw rod are connected to the actuation part patchhole and optionally supply with the supply hydraulic pressure from rocking arm hydraulic pressure supply line;
Actuator piston, this actuator piston are slidably mounted in the screw rod and according to the supply hydraulic pressure that supplies to screw rod from rocking arm hydraulic pressure supply line and optionally move up and down;
Check ball, this check ball are installed in rocking arm hydraulic pressure supply line and rocking arm hydraulic pressure and discharge between the line, so that be used for optionally will be from the supply hydraulic pressure supply of rocking arm hydraulic pressure supply line to actuator piston; And
Actuator springs, this actuator springs support this check ball towards rocking arm hydraulic pressure supply linear elasticity ground.
11. variable valve actuator according to claim 10, wherein this actuation part comprises:
Returnning spring, it supports actuator piston towards rocking arm hydraulic pressure supply linear elasticity ground; And
First stop ring, it is inserted between screw rod and the actuator piston to prevent the disengagement of actuator piston and Returnning spring.
12. variable valve actuator according to claim 11, wherein this actuation part also comprises the ball-and-socket assembly, and the open part of this ball-and-socket assembly is forming so that actuator piston is connected to by pivotally on this ball-and-socket assembly on the ball-and-socket assembly.
13. variable valve actuator according to claim 12, wherein this ball-and-socket assembly comprises:
Retaining part, the open part of this retaining part are formed at the top of retaining part to hold the piston bottom therein, and notch portion is formed at the side of retaining part; And
Ball-and-socket, it is connected to retaining part and contacts valve unit slidably.
14. variable valve actuator according to claim 9, wherein this variable control section also comprises:
Plate, this plate support variable control spring and discharge line to open rocking arm hydraulic pressure, and
Second stop ring, this second stop ring supports this plate.
15. variable valve actuator according to claim 8, wherein this variable valve actuator also comprises solenoid valve, the supply hydraulic pressure of this electromagnetic valve rocking arm hydraulic pressure supply line.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2010-0085148 | 2010-08-31 | ||
| KR1020100085148A KR101209738B1 (en) | 2010-08-31 | 2010-08-31 | Variable valve actuator of integrated locker arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102383889A true CN102383889A (en) | 2012-03-21 |
| CN102383889B CN102383889B (en) | 2016-06-08 |
Family
ID=45566285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010556348.0A Expired - Fee Related CN102383889B (en) | 2010-08-31 | 2010-11-22 | Variable valve actuator |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20120048221A1 (en) |
| KR (1) | KR101209738B1 (en) |
| CN (1) | CN102383889B (en) |
| DE (1) | DE102010060725A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089364A (en) * | 2013-02-28 | 2013-05-08 | 长城汽车股份有限公司 | Actuating mechanism of variable valve stroke drive device for engine |
| CN108868935A (en) * | 2017-05-08 | 2018-11-23 | 曼卡车和巴士奥地利有限责任公司 | Valve drive rod |
| CN113503198A (en) * | 2021-06-29 | 2021-10-15 | 庄辉 | Valve driving device of engine and driving method thereof |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101272942B1 (en) * | 2011-09-30 | 2013-06-11 | 현대자동차주식회사 | Variable valve system |
| KR101448779B1 (en) * | 2013-04-03 | 2014-10-08 | 현대자동차 주식회사 | Variable valve lift device |
| RU2583539C1 (en) * | 2015-07-06 | 2016-05-10 | Олег Иванович Квасенков | Method for producing kvass |
| CN105604634B (en) | 2015-12-24 | 2018-04-20 | 广州汽车集团股份有限公司 | Continuous variable valve lift system and automobile |
| EP3601752B1 (en) | 2017-03-27 | 2021-01-06 | Volvo Truck Corporation | Rocker arm for an internal combustion engine |
| US11339688B2 (en) | 2020-01-29 | 2022-05-24 | Borgwarner, Inc. | Variable camshaft timing valve assembly |
| KR20240042938A (en) * | 2022-09-26 | 2024-04-02 | 현대자동차주식회사 | Piston Pop Up type Variable Valve Device and Variable Valve System thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4644914A (en) * | 1984-08-29 | 1987-02-24 | Toyota Jidosha Kabushiki Kaisha | Valve mechanism of internal combustion engine |
| US6439195B1 (en) * | 2000-07-30 | 2002-08-27 | Detroit Diesel Corporation | Valve train apparatus |
| CN1991136A (en) * | 2005-12-28 | 2007-07-04 | 雅各布斯车辆系统公司 | Method and system for partial cycle bleeder brake |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0598913A (en) * | 1991-10-11 | 1993-04-20 | Fuji Oozx Kk | Roller rocker arm |
| US5975251A (en) * | 1998-04-01 | 1999-11-02 | Diesel Engine Retarders, Inc. | Rocker brake assembly with hydraulic lock |
| GB9815599D0 (en) | 1998-07-20 | 1998-09-16 | Cummins Engine Co Ltd | Compression engine braking system |
| US6314926B1 (en) * | 1999-05-24 | 2001-11-13 | Jenera Enterprises Ltd | Valve control apparatus |
| DE60043780D1 (en) * | 1999-09-10 | 2010-03-18 | Diesel Engine Retarders Inc | ROCKER LEVER SYSTEM WITH TOTGANG AND INTEGRATED MOTOR BRAKE |
| EP1242735B1 (en) * | 1999-12-20 | 2010-10-13 | Jacobs Vehicle Systems, Inc. | Method and apparatus for hydraulic clip and reset of engine brake systems utilizing lost motion |
| US6253730B1 (en) * | 2000-01-14 | 2001-07-03 | Cummins Engine Company, Inc. | Engine compression braking system with integral rocker lever and reset valve |
| US6691674B2 (en) * | 2001-06-13 | 2004-02-17 | Diesel Engine Retarders, Inc. | Latched reset mechanism for engine brake |
| US20050224046A1 (en) | 2002-03-04 | 2005-10-13 | Jenara Enterprises Ltd. | Apparatus and method for retarding an engine with an exhaust brake and a compression release brake |
| US6941909B2 (en) * | 2003-06-10 | 2005-09-13 | Caterpillar Inc | System and method for actuating an engine valve |
| JP2004044399A (en) | 2002-07-09 | 2004-02-12 | Honda Motor Co Ltd | Valve gear of internal combustion engine |
| KR101282840B1 (en) * | 2004-05-06 | 2013-07-05 | 자콥스 비히클 시스템즈, 인코포레이티드. | Primary and offset actuator rocker arms for engine valve actuation |
| DE102006015893A1 (en) * | 2006-04-05 | 2007-10-11 | Daimlerchrysler Ag | Gas exchange valve actuating device |
| US8726863B2 (en) * | 2007-03-16 | 2014-05-20 | Jacobs Vehicle Systems, Inc. | Rocker shaft pedestal incorporating an engine valve actuation system or engine brake |
| US8634354B2 (en) | 2007-10-31 | 2014-01-21 | Qualcomm Incorporated | Session establishment in multi-carrier data transmission systems |
| US8210144B2 (en) * | 2008-05-21 | 2012-07-03 | Caterpillar Inc. | Valve bridge having a centrally positioned hydraulic lash adjuster |
| DE102008061412A1 (en) * | 2008-07-11 | 2010-01-14 | Man Nutzfahrzeuge Ag | Hydraulic valve and EVB clearance compensation |
| US8065987B2 (en) * | 2009-01-05 | 2011-11-29 | Zhou Yang | Integrated engine brake with mechanical linkage |
| KR101036966B1 (en) * | 2009-06-09 | 2011-05-25 | 기아자동차주식회사 | Compression release brake module |
| DE102009048143A1 (en) * | 2009-10-02 | 2011-04-07 | Man Nutzfahrzeuge Aktiengesellschaft | Internal combustion engine with an engine brake device |
| KR101134973B1 (en) * | 2009-11-19 | 2012-04-09 | 기아자동차주식회사 | Engine brake and engine provided with the same |
-
2010
- 2010-08-31 KR KR1020100085148A patent/KR101209738B1/en active IP Right Grant
- 2010-11-18 US US12/949,652 patent/US20120048221A1/en not_active Abandoned
- 2010-11-22 CN CN201010556348.0A patent/CN102383889B/en not_active Expired - Fee Related
- 2010-11-23 DE DE102010060725A patent/DE102010060725A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4644914A (en) * | 1984-08-29 | 1987-02-24 | Toyota Jidosha Kabushiki Kaisha | Valve mechanism of internal combustion engine |
| US6439195B1 (en) * | 2000-07-30 | 2002-08-27 | Detroit Diesel Corporation | Valve train apparatus |
| CN1991136A (en) * | 2005-12-28 | 2007-07-04 | 雅各布斯车辆系统公司 | Method and system for partial cycle bleeder brake |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089364A (en) * | 2013-02-28 | 2013-05-08 | 长城汽车股份有限公司 | Actuating mechanism of variable valve stroke drive device for engine |
| CN103089364B (en) * | 2013-02-28 | 2015-02-04 | 长城汽车股份有限公司 | Actuating mechanism of variable valve stroke drive device for engine |
| CN108868935A (en) * | 2017-05-08 | 2018-11-23 | 曼卡车和巴士奥地利有限责任公司 | Valve drive rod |
| CN108868935B (en) * | 2017-05-08 | 2022-06-24 | 曼卡车和巴士奥地利有限责任公司 | Valve transmission rod |
| CN113503198A (en) * | 2021-06-29 | 2021-10-15 | 庄辉 | Valve driving device of engine and driving method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101209738B1 (en) | 2012-12-07 |
| US20120048221A1 (en) | 2012-03-01 |
| DE102010060725A1 (en) | 2012-03-01 |
| CN102383889B (en) | 2016-06-08 |
| KR20120021096A (en) | 2012-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102383889A (en) | Variable valve actuator | |
| CN102477878B (en) | The changeable air valve actuator assembly of one is integrated with valve cross arm | |
| CN102071984B (en) | Engine brake and engine provided with the same | |
| CN107060933A (en) | Valve actuating mechanism assembly | |
| CN102383891B (en) | Variable air valve lift apparatus | |
| EP0543210A1 (en) | Engine comprising a continuous braking device, particularly for an industrial vehicle | |
| CN102477879B (en) | Continuous variable air valve lift apparatus | |
| CN102588030A (en) | Auxiliary valve driving mechanism of engine | |
| CN106032762B (en) | Lift range variable equipment | |
| CN101784758B (en) | Valve train actuating device | |
| KR101405612B1 (en) | Variable valve lift device | |
| US9625050B2 (en) | Engine valve actuation system | |
| CN101408118A (en) | Full function variable gas distribution controlling mechanism of internal combustion engine | |
| JP2008038889A (en) | Valve control mechanism | |
| CN104564212A (en) | Integrated engine brake | |
| CN101457659B (en) | Continuous variable valve lift apparatus | |
| CN107701253B (en) | A kind of rocker arm body | |
| CN104454066A (en) | Continuous and variable lift driver | |
| US8720413B2 (en) | Variable compression ratio apparatus of exhaust gas brake | |
| CN104712392B (en) | Variable air valve lift apparatus | |
| US6666178B1 (en) | Valve deactivation with an electro-hydraulic actuator | |
| CN103573325B (en) | Electric hydaulic variable air valve lift apparatus | |
| CN201924986U (en) | Special valve driving mechanism for engine brake | |
| CN201100150Y (en) | A valve driving supply device for engine | |
| CN204476492U (en) | Engine braking apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 |