| 摘要 |
[Problems] A control valve for a variable displacement compressor, where sliding resistance by movement of a valve is reduced as much as possible to stably and accurately regulate the rate of air flow, enabling a suction pressure corresponding to solenoid thrust to be maintained. [Means for Solving Problems] The discharge pressure Pd of the compressor introduced into a pressure sensing section (40) applies urging force to a movement member (50), and a solenoid section (36) applies, in cooperation with the urging force, urging force to the movement member (50) depending on an input signal. The degree of opening of a valve body (56) provided at the movement member (50) is set according to the position of the movement member (50) to regulate the rate of air flow in a communication path for interconnecting a discharge pressure region of the compressor and a compressor inner chamber. The suction pressure Ps of the compressor is introduced into a control valve to apply urging force to the movement member (50), and communication between fluid having the discharge pressure Pd introduced into the pressure sensing section (40) and fluid having the suction pressure Ps introduced into the control valve is shut off.
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