VARIABLE DISPLACEMENT COMPRESSOR CONTROL VALVE
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United States of America Patent
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Issued Date -
Mar 8, 2012
app pub date -
Aug 31, 2011
filing date -
Sep 6, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A variable displacement compressor control valve is provided, which can reduce a time required until a discharge capacity becomes large at a time of actuation of a compressor without reducing an operation efficiency of the compressor. An in-valve release passage for releasing a crank chamber pressure Pc to a suction chamber of the compressor through a Ps inlet/outlet port is provided, a sub valve element which opens and closes the in-valve release passage is provided, and under a situation in which a valve port is closed by a main valve element, two forces that are a force corresponding to a suction pressure Ps (contraction force of a bellows device) and a force corresponding to a differential pressure of the crank chamber pressure Pc and the suction pressure Ps act on the sub valve element in a direction to open the in-valve release passage.
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