Invention Grant
US08277200B2 Variable displacement compressor with a discharge pressure compensated suction shutoff valve 有权
带排气压力补偿吸入截止阀的可变排量压缩机

Variable displacement compressor with a discharge pressure compensated suction shutoff valve
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.
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