Patent ID: 6332329
Filing Date: 2001-12-25
Classification: B60H,F04B

Abstract:
A variable displacement swash plate compressor comprising:a flow-rate control valve installed in a low-pressure side refrigerant path upstream refrigerant suction chamber, and having a spool valve, a spring for biasing the spool valve in a valve closing direction, and a pressure chamber for accumulating pressure for the spool valve to be worked in the valve opening direction; anda flow-rate control valve drive mechanism installed in a path for communication between a refrigerant discharge chamber and the pressure chamber, and having a pilot valve to be normally closed by a spring and to be controlled of a valve opening degree by an exciting current of a solenoid for a high-pressure side refrigerant of the refrigerant discharge chamber to be introduced and controlled as working pressure to the pressure chamber,wherein a flow-rate of a refrigerant to flow in the refrigerant suction chamber is controlled for pressures of the refrigerant suction chamber and a crank chamber to be regulated.