[특허]Variable-displacement vane-pump

Variable-displacement vane-pump 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04C-015/04
출원번호	US-0634504 (1990-12-27)
우선권정보	JP-0341916 (1989-12-27)
발명자 / 주소	Suzuki Mikio (Hekinan JPX) Suto Satoshi (Okazaki JPX) Okuda Ikuo (Okazaki JPX) Nakawaki Yasunori (Susono JPX) Abe Akiharu (Susono JPX)
출원인 / 주소	Toyoda Koki Kabushiki Kaisha (Kariya JPX 03)
인용정보	피인용 횟수 : 28 인용 특허 : 0

초록 ▼

A variable-displacement vane-pump has a rotor which is rotatably supported by a pump housing in coaxial relationship therewith, and a cam ring interposed between the rotor and the pump housing in eccentric relationship with the pump housing. The rotor has radially outwardly slidable vanes on its outer peripheral surface in contact with an inner surface of the cam ring. Two side plates are disposed on both sides of the vanes, thereby defining pump chambers between every adjacent vanes. An arc-shaped intake port and an arc-shaped exhaust port are formed in one of two side plates, and respectively open into the pump chambers along one side face of the cam ring. In the other side face of the cam ring, a groove is formed except for the region corresponding to the exhaust port, and a partially cut off annular friction ring is disposed within the groove while urged by a seal ring into close contact with the other side plate. A pressure compensating recess having a configuration which conforms to that of the exhaust port and communicating with the pump chambers is formed in the other side face of the cam ring except for the region wherein the groove for the friction ring is formed.

대표청구항 ▼

A variable-displacement vane-pump, comprising: a pump housing: a drive shaft rotatably supported by said pump housing in coaxial relationship therewith; a rotor which is supported by said drive shaft to be rotated integrally with said drive shaft within said pump housing, said rotor being provided with a plurality of vanes at regular intervals in the circumferential direction on the outer peripheral surface thereof said plurality of vanes being radially slidable outward and inward with the rotation of said rotor; a cam ring interposed between said rotor and said pump housing in eccentric relationship with said pump housing, thereby defining two spaces between respective half portions of an outer periphery of said cam ring and an inner surface of said pump housing, one of said two spaces between said cam ring and said pump housing being communicated with a pressure source so that said cam ring is swung from its eccentric position to its coaxial position with respect to said pump housing to adjust discharge rate in accordance with the pressure of said pressure source; two side plates respectively provided on both sides of said vanes, a top end of said vane contacting the inner surface of said cam ring, thereby defining pump chambers between said rotor and said cam ring: an intake port for successively sucking working fluid into said pump chambers, and an exhaustt port for successively discharging pressurized working fluid from said pump chambers, said intake port and said exhaust port being provided in one side plate, and opening upon one side face of said cam ring; a friction ring provided between said cam ring and one of said two side plates, said friction ring being urged by an elastic member into contact with said one of said two side plates; and a pressure compensating recess formed at the other side face to said cam ring, which is opposite to said one side face upon which said exhaust port opens, said pressure compensating recess having a configuration which conforms to that of said exhaust port, and being communicated with said pump chambers.

이 특허를 인용한 특허 (28)

Park, Jae Sam; Kang, Byeong Hak; Cha, Hun, Apparatus and method for measuring flow rate of meter.
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Shulver, David R.; Cioc, Adrian C., Continuously variable displacement vane pump and system.
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Hunter, Douglas G.; Jannausch, Matthew J., Hydraulic pump with variable flow and variable pressure and electric control.
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Marko Gretzschel DE; Nico Jakel DE; Tilo Koch DE; Jorg Patzold DE, Regulatable pump.
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Schneider, Willi; Helle, Torsten; Ehrenfeld, Dirk, Vane cell pump with adjustable output.
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Lutoslawski, Jarek; Muizelaar, Richard D., Vane pump using line pressure to directly regulate displacement.
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Williamson, Matthew; Shulver, David R.; Tanasuca, Cezar, Vane pump with multiple control chambers.
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Williamson, Matthew; Shulver, David R.; Tanasuca, Cezar, Vane pump with multiple control chambers.
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Williamson, Matthew; Shulver, David R., Variable capacity vane pump with dual control chambers.
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Williamson, Matthew; Shulver, David R., Variable capacity vane pump with dual control chambers.
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Williamson, Matthew; Shulver, David R., Variable capacity vane pump with dual control chambers.
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Tanasuca, Cezar, Variable capacity vane pump with force reducing chamber on displacement ring.
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Watanabe, Yasushi; Naganuma, Atsushi; Ohnishi, Hideaki, Variable displacement oil pump.
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Suzuki,Mikio; Inaguma,Yoshiharu; Suzuki,Keiji; Kato,Hideya; Ikeda,Tsuyoshi, Variable displacement pump.
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Watanabe, Yasushi; Ohnishi, Hideaki; Naganuma, Atsushi, Variable displacement pump.
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Hunter,Douglas G.; Koenig,Dennis, Variable displacement pump and control therefor.
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Hunter,Douglas; Koenig,Dennis, Variable displacement pump and control therefore for supplying lubricant to an engine.
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Clements, Martin A.; Hansen, Lowell D., Variable displacement pump having a rotating cam ring.
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Clements,Martin A.; Hansen,Lowell D., Variable displacement pump having a rotating cam ring.
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Clements, Martin A.; Hansen, Lowell D., Variable displacement pump having rotating cam ring.
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Clements,Martin A.; Hansen,Lowell D., Variable displacement pump having rotating cam ring.
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Böwing, Oliver; Kutzer, Hans Peter, Variable displacement pump with multiple pressure chambers where a circumferential extent of a first portion of a first chamber is greater than a second portion.
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Saga, Koji; Watanabe, Yasushi; Ohnishi, Hideaki, Variable displacement vane pump.
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Zwickler, Georg; Schmitz, Herbert, Variable displacement vane pump.
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Williamson, Matthew; Shulver, David R.; Tanasuca, Cezar, Variable displacement vane pump with enhanced discharge port.
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Hunter, Douglas G.; Haase, Thomas, Variable displacement vane pump with variable target regulator.
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Hunter, Douglas G.; Niemiec, Albin J., Variable displacement vane pump with variable target regulator.
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Hunter, Douglas G.; Niemiec, Albin J., Variable displacement vane pump with variable target regulator.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Variable-displacement vane-pump 원문보기

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Variable-displacement vane-pump 원문보기

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