Invention Grant
- Patent Title: Variable displacement compressor with a discharge pressure compensated suction shutoff valve
- Patent Title (中): 带排气压力补偿吸入截止阀的可变排量压缩机
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Application No.: US12466603Application Date: 2009-05-15
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Publication No.: US08277200B2Publication Date: 2012-10-02
- Inventor: Joseph M. Bona , Matthew R. Warren , Douglas E. Webster
- Applicant: Joseph M. Bona , Matthew R. Warren , Douglas E. Webster
- Applicant Address: US MI Troy
- Assignee: Delphi Technologies, Inc.
- Current Assignee: Delphi Technologies, Inc.
- Current Assignee Address: US MI Troy
- Agent Lawrence D. Hazelton
- Main IPC: F04B43/12
- IPC: F04B43/12

Abstract:
A variable displacement compressor with a discharge pressure compensated suction shutoff valve (SSV). The SSV prevents noise generated at low refrigerant flow rates by a suction valve from propagating out of the compressor and to an air conditioner evaporator by variably restricting a fluid communication with the suction valve. The SSV is configured so the variable restriction is increased correspondingly with the discharge pressure if the discharge pressure is less than a threshold that is an indicator of low refrigerant flow rates, and the restriction is decreased if the discharge pressure is greater than the threshold.
Public/Granted literature
- US20090311109A1 Variable Displacement Compressor With A Discharge Pressure Compensated Suction Shutoff Valve Public/Granted day:2009-12-17
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