Variable displacement swash plate type compressor
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United States of America Patent
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Feb 28, 2017
Grant Date -
Feb 12, 2015
app pub date -
Jul 31, 2014
filing date -
Aug 8, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A variable displacement swash plate type compressor includes a displacement control valve. The displacement control valve includes a drive force transmitting member, a valve member having a first valve body, a pressure sensing mechanism, which adjusts the valve opening degree of the first valve body, a communication passage, which connects a back pressure chamber and an accommodating chamber to each other, and a second valve body, which selectively opens and closes the communication passage. The first valve body opens when current supply to an electromagnetic solenoid is stopped and the pressure in a suction pressure zone is less than a threshold value. The second valve body closes when current is supplied to the electromagnetic solenoid and opens when the current supply to the electromagnetic solenoid is stopped and the pressure in the suction pressure zone is greater than or equal to the threshold value.
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