[특허]Self regulating waste gate

Eckart Industrial Corporation

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Self regulating waste gate

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02D-023/00 F01B-019/00 F16J-003/00
미국특허분류(USC)	060/602; 092/094; 092/096; 092/102
출원번호	US-0505028 (2009-07-17)
등록번호	US-8117841 (2012-02-21)
발명자 / 주소	Eckart, Aaron
출원인 / 주소	Eckart Industrial Corporation
대리인 / 주소	Pearne & Gordon LLP
인용정보	피인용 횟수 : 3 인용 특허 : 14

초록

A self-regulating wastegate valve actuator for dynamically regulating a wastegate valve in a turbocharged internal combustion engine. The wastegate valve actuator regulates and maintains a desired pressure differential across a throttle valve with minimal controlling elements by controlling a wastegate valve in response to the pressure differential generated across the throttle valve.

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1. A wastegate valve actuator for controlling the position of a wastegate valve for a turbocharger of an internal combustion engine, the waste gate valve actuator comprising: a first housing defining a first closed chamber sealed at one end with a first diaphragm, the first housing having a boost pressure inlet in fluid communication with the first closed chamber, the first diaphragm adapted to be coupled to the wastegate valve to control the position of the wastegate valve in reaction to movement of the first diaphragm;a second housing defining a second closed chamber sealed at one end with a second diaphragm, the second housing having an intake manifold pressure inlet in communication with the second closed chamber; andan intake manifold pressure communicator located between the first and second housing, the intake manifold pressure communicator coupled to the second diaphragm and communicating a force to the first diaphragm in reaction to movement of the second diaphragm. 2. The wastegate valve actuator of claim 1, wherein: the first housing comprises a wastegate housing;the first diaphragm comprises a boost pressure reaction diaphragm;the second housing comprises an intake manifold pressure housing; andthe second diaphragm comprises an intake manifold reaction diaphragm. 3. The wastegate valve actuator of claim 2, further comprising: a piston housing coupling the wastegate housing to the intake manifold pressure housing, the piston housing defining a piston chamber between the boost pressure reaction diaphragm and the intake manifold reaction diaphragm, the piston chamber in fluid communication with atmospheric pressure. 4. The wastegate valve actuator of claim 3, further comprising: a spring located within the piston chamber, the spring biasing the boost pressure reaction diaphragm. 5. The wastegate valve actuator of claim 4, wherein the intake manifold pressure communicator comprises an intake manifold pressure reaction piston coupled between the intake manifold reaction diaphragm and a contact post shaped to engage the spring biasing the boost pressure reaction diaphragm. 6. The wastegate valve actuator of claim 5, wherein the contact post comprises a section extending partially through the spring and having an end shaped to contact the boost pressure reaction diaphragm. 7. The wastegate valve actuator of claim 6, wherein the contact post is adjustable to vary the distance between the point of engagement of the spring and the end of the contact post section shaped to contact the boost pressure reaction diaphragm. 8. The wastegate valve actuator of claim 1, wherein the first diaphragm is coupled to the wastegate valve by a shaft extending from the first diaphragm through the first housing to the wastegate valve. 9. A turbocharger system for an internal combustion engine, the turbocharger system comprising: a turbocharger driven by exhaust gases of the internal combustion engine, the turbocharger generating boost pressure provided to an intake manifold of the internal combustion engine through an intake pipe comprising a throttle valve located between the turbocharger and the intake manifolda wastegate valve moveable between an open position that diverts exhaust of the internal combustion engine away from the turbocharger and a closed position which directs exhaust of the internal combustion engine to the turbocharger; anda wastegate valve actuator for controlling the position of the wastegate valve, the waste gate valve actuator comprising: a first housing defining a first closed chamber sealed at one end with a first diaphragm, the first housing having a boost pressure inlet coupled to the intake pipe between the turbocharger and the throttle valve, the boost pressure inlet in fluid communication with the first closed chamber, the first diaphragm adapted to be coupled to the wastegate valve to control the position of the wastegate valve in reaction to movement of the first diaphragm;a second housing defining a second closed chamber sealed at one end with a second diaphragm, the second housing having an intake manifold pressure inlet coupled to the intake pipe between the throttle valve and the intake manifold, the intake manifold pressure inlet in fluid communication with the second closed chamber; andan intake manifold pressure communicator located between the first and second housing, the intake manifold pressure communicator coupled to the second diaphragm and communicating a force to the first diaphragm in reaction to movement of the second diaphragm. 10. The turbocharger system of claim 9, wherein the boost pressure inlet is coupled to the intake pipe through a boost pressure sense line. 11. The turbocharger system of claim 9, wherein the intake manifold pressure inlet is coupled to the intake pipe through an intake manifold pressure sense line. 12. The turbocharger system of claim 9, wherein: the first housing of the wastegate valve actuator comprises a wastegate housing;the first diaphragm of the wastegate valve actuator comprises a boost pressure reaction diaphragm;the second housing of the wastegate valve actuator comprises an intake manifold pressure housing; andthe second diaphragm of the wastegate valve actuator comprises an intake manifold reaction diaphragm. 13. The turbocharger system of claim 10, wherein the wastegate valve actuator further comprises: a piston housing coupling the wastegate housing to the intake manifold pressure housing, the piston housing defining a piston chamber between the boost pressure reaction diaphragm and the intake manifold reaction diaphragm, the piston chamber in fluid communication with atmospheric pressure. 14. The turbocharger system of claim 11, wherein the wastegate valve actuator further comprises: a spring located within the piston chamber, the spring biasing the boost pressure reaction diaphragm. 15. The turbocharger system of claim 12, wherein the intake manifold pressure communicator comprises an intake manifold pressure reaction piston coupled between the intake manifold reaction diaphragm and a contact post shaped to engage the spring biasing the boost pressure reaction diaphragm. 16. The turbocharger system of claim 13, wherein the contact post comprises a section extending partially through the spring and having an end shaped to contact the boost pressure reaction diaphragm. 17. The turbocharger system of claim 14, wherein the contact post is adjustable to vary the distance between the point of engagement of the spring and the end of the contact post section shaped to contact the boost pressure reaction diaphragm. 18. The turbocharger system of claim 9, wherein the first diaphragm is coupled to the wastegate valve by a shaft extending from the first diaphragm through the first housing to the wastegate valve. 19. The turbocharger system of claim 9, wherein the wastegate valve is internal to the turbocharger. 20. The turbocharger system of claim 9, wherein the wastegate valve is external to the turbocharger.

이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 3

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특허 상세정보

Self regulating waste gate

초록

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이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 3

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특허 상세정보

Self regulating waste gate

초록

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이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 3

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

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