Invention Grant
- Patent Title: Variable displacement compressor
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Application No.: US17438794Application Date: 2020-03-16
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Publication No.: US11841010B2Publication Date: 2023-12-12
- Inventor: Yukihiko Taguchi
- Applicant: SANDEN AUTOMOTIVE COMPONENTS CORPORATION
- Applicant Address: JP Isesaki
- Assignee: SANDEN CORPORATION
- Current Assignee: SANDEN CORPORATION
- Current Assignee Address: JP Isesaki
- Agency: Baker Botts L.L.P.
- Priority: JP 19052134 2019.03.20
- International Application: PCT/JP2020/011350 2020.03.16
- International Announcement: WO2020/189604A 2020.09.24
- Date entered country: 2021-09-13
- Main IPC: F04B27/18
- IPC: F04B27/18 ; F04B27/08

Abstract:
Provided is a variable displacement compressor that is directed to cost reduction and productivity enhancement of a second control valve that adjusts an opening degree of a discharge passage for discharging a refrigerant in a controlled pressure chamber to a suction chamber. The variable displacement compressor includes the second control valve (400) configured to decrease an opening degree of the discharge passage to a minimum value when a first end surface (421a) of a valve body (420) accommodated in a valve chamber (410) comes into contact with a first end wall surface (411) of the valve chamber (410) to close a second port (432) and a third port (433), and configured to increase the opening degree of the discharge passage to a maximum value when the first end surface (421a) of the valve body (420) separates from the first end wall surface (411) of the valve chamber (410) to open the second port (432) and the third port (433). The valve body (420) is supported movably in a direction perpendicular to the first end wall surface (411) without contact with a peripheral wall surface (413) of the valve chamber (410), by a guide shaft portion (415a) being slidably inserted into a receiving portion (423) formed at a radially center portion of the valve body (420).
Public/Granted literature
- US20220145869A1 VARIABLE DISPLACEMENT COMPRESSOR Public/Granted day:2022-05-12
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