System and method for modifying engine valve lift
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0816828
(2004-04-05)
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발명자
/ 주소 |
- Ruggiero, Brian
- Yang, Zhou
- Huang, Shengqiang
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출원인 / 주소 |
- Jacobs Vehicle Systems, Inc.
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대리인 / 주소 |
Collier Shannon Scott PLLC
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인용정보 |
피인용 횟수 :
9 인용 특허 :
2 |
초록
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Devices for modifying engine valve lift during an engine valve event are disclosed. In one embodiment, the device comprises: a housing having a hydraulic fluid dump port formed therein; a sleeve slidably disposed in a bore formed in the housing, the sleeve having a cavity formed therein; a piston sl
Devices for modifying engine valve lift during an engine valve event are disclosed. In one embodiment, the device comprises: a housing having a hydraulic fluid dump port formed therein; a sleeve slidably disposed in a bore formed in the housing, the sleeve having a cavity formed therein; a piston slidably disposed in the sleeve cavity; and a clip passage formed in the piston, the clip passage in selective communication with the dump port.
대표청구항
▼
1. A device for modifying engine valve lift during an engine valve event in an internal combustion engine, said device comprising:a housing having a hydraulic fluid dump port formed therein; a sleeve slidably disposed in a bore formed in said housing, said sleeve having a cavity formed therein; a pi
1. A device for modifying engine valve lift during an engine valve event in an internal combustion engine, said device comprising:a housing having a hydraulic fluid dump port formed therein; a sleeve slidably disposed in a bore formed in said housing, said sleeve having a cavity formed therein; a piston slidably disposed in the sleeve cavity; and a clip passage formed in said piston, said clip passage in selective communication with the dump port. 2. The device of claim 1, further comprising means for adjusting the position of said sleeve within the bore.3. The device of claim 2, wherein said adjusting means comprises:a screw extending through said housing into the bore; and a locking nut secured to said screw, wherein said locking nut may be adjusted to extend said screw a desired distance within the bore. 4. The device of claim 2, wherein said adjusting means comprises:a lash passage formed in said housing; and means for selectively supplying hydraulic fluid to said lash passage. 5. The device of claim 4, wherein said lash passage is disposed above said sleeve.6. The device of claim 4, wherein said lash passage selectively communicates with said clip passage.7. The device of claim 2, wherein said adjusting means comprises:a screw extending through said housing into the bore; a locking nut secured to said screw, wherein said locking nut may be adjusted to extend said screw a desired distance within the bore; a lash passage formed in said housing; and means for selectively supplying hydraulic fluid to said lash passage. 8. The device of claim 1, further comprising a first spring disposed between said sleeve and said piston biasing said piston away from said sleeve.9. The device of claim 8, further comprising a second spring disposed between said sleeve and said piston.10. The device of claim 9, wherein the biasing force of said second spring is less than the biasing force of said first spring.11. The device of claim 1, wherein the engine valve event comprises an exhaust gas recirculation event.12. The device of claim 1, wherein the dump port communicates with ambient.13. The device of claim 1, further comprising:an accumulator disposed in said housing, wherein the dump port communicates with said accumulator. 14. A device for modifying engine valve lift during an engine valve event in an internal combustion engine, said device comprising:a housing having a bore and a hydraulic fluid dump port formed therein; a piston slidably disposed in the bore; a clip hole formed in said piston; a clip passage formed in said piston, said clip passage in selective communication with the dump port; and a check valve assembly disposed between said clip hole and said clip passage. 15. The device of claim 14, wherein said check valve assembly comprises:a check ball; and a spring biasing said check ball in a position covering said clip hole. 16. The device of claim 15, further comprising:means for supplying hydraulic fluid to the bore, wherein hydraulic fluid pressure in the bore selectively moves said check ball from the position covering said clip hole. 17. The device of claim 15, further comprising:a plunger extending through said housing into the bore; a locking nut secured to said plunger, wherein said locking nut may be adjusted to extend said plunger a desired distance within the bore. 18. The device of claim 15, wherein the engine valve event comprises an exhaust gas recirculation event.19. The device of claim 15, wherein the dump port communicates with ambient.20. The device of claim 15, further comprising:an accumulator disposed in said housing, wherein the dump port communicates with said accumulator.
이 특허에 인용된 특허 (2)
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Richard Vanderpoel ; John A. Schwoerer, Method and apparatus for valve seating velocity control.
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Israel Mark ; Judd James ; Emmons Kristin V. ; Kinerson Kevin J. ; Vanderpoel Richard E., System for combination compression release braking and exhaust gas recirculation.
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Roberts, Gabriel; Fuchs, Neil; Baltrucki, Justin, Apparatus and system comprising integrated master-slave pistons for actuating engine valves.
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Tallio, Kevin V.; Lyjak, Jeff Chester; Comer, Floyd Melvin, Hydraulic lash adjuster with damping device.
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Yang, Zhou, Integrated engine brake with mechanical linkage.
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Vanderpoel, Richard E., Valve actuation system and method of driving two slave pistons with one master piston.
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Astner, Josef; Böhme, Daniel; Wagner, Marc Oliver; Wolf, Harry, Valve clearance compensation device and method for controlling a valve clearance compensating device for an internal combustion engine.
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Dingle,Philip J. G., Valve lash adjuster having electro-hydraulic lost-motion capability.
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Vorih, Joesph M.; Mossberg, Jeffrey; Vanderpoel, Richard; Ernest, Steven; Paterson, Guy; Schwoerer, John A.; Leitkowski, Edward T.; Brzoska, Andrew; Cosma, Gheorghe, Variable lost motion valve actuator and method.
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Vorih, Joseph M.; Mossberg, Jeffrey; Vanderpoel, Richard; Ernest, Steven; Paterson, Guy; Schwoerer, John A.; Leitkowski, Edward T.; Brzoska, Andrew; Cosma, Gheorghe, Variable lost motion valve actuator and method.
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