Invention Grant
- Patent Title: Variable displacement compressor
- Patent Title (中): 可变排量压缩机
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Application No.: US13039731Application Date: 2011-03-03
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Publication No.: US08714938B2Publication Date: 2014-05-06
- Inventor: Motoaki Okuda , Masaki Ota , Masakazu Murase , Shun Sumikawa , Hiromi Ueda
- Applicant: Motoaki Okuda , Masaki Ota , Masakazu Murase , Shun Sumikawa , Hiromi Ueda
- Applicant Address: JP Aichi-Ken
- Assignee: Kabushiki Kaisha Toyota Jidoshokki
- Current Assignee: Kabushiki Kaisha Toyota Jidoshokki
- Current Assignee Address: JP Aichi-Ken
- Agency: Greenblum & Bernstein P.L.C.
- Priority: JP2010-050371 20100308
- Main IPC: F04B1/26
- IPC: F04B1/26 ; F04B1/12 ; F04B27/08

Abstract:
The variable displacement compressor has a suction-pressure region, a discharge-pressure region and a crank chamber. The compressor includes a supply passage, a bleed passage and a control valve that adjusts cross-sectional area of the bleed passage. The control valve includes a valve chamber, a valve portion and a valve seat member. The valve portion is disposed in the valve chamber for dividing the valve chamber into a bleed chamber, a backpressure chamber and a communication passage. The bleed chamber forms a part of the bleed passage. The backpressure chamber communicates with the supply passage. The communication passage is formed between an outer circumferential surface of the valve portion and an inner circumferential surface of the valve chamber for providing fluid communication between the bleed chamber and the backpressure chamber. The valve seat member is disposed in the bleed chamber and provided separately from a compressor housing forming the valve chamber.
Public/Granted literature
- US20110214564A1 VARIABLE DISPLACEMENT COMPRESSOR Public/Granted day:2011-09-08
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