| 摘要 |
A variable displacement compressor comprising a volume control valve disposed somewhere in a delivery pressure supply passageway and capable of communicating with a crank chamber from a delivery chamber, a fixed orifice somewhere in a pressure relief passageway communicating with a suction chamber from the crank chamber, the volume control valve being open-close controlled to adjust the pressure in the crank chamber to control the piston stroke, wherein part of the delivery pressure supply passageway and part of the pressure relief passageway are formed in a common passageway communicating with the crank chamber end. variable displacement control of high reliability is possible with no foreign matter accumulation in the volume control passageway, and the processing of the cylinder block is simplified.
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