Capacity control valve

A capacity control valve comprising:

• a valve housing provided with a suction port through which a suction fluid of a suction pressure passes and a control port through which a control fluid of a control pressure passes;
• a valve body driven by a solenoid and having a pressure receiving surface on which the control pressure having a direction opposed to a driving direction of the solenoid acts;
• a spring that biases the valve body in a direction opposite to a direction of driving by the solenoid;
• and
• a control-suction valve that includes a control-suction valve seat and the valve body, and that opens and closes a communication between the control port and the suction port,
• wherein the capacity control valve further comprises
• a supply device that supplies the control fluid of the control pressure to a back side of the valve body which is a side opposed to the pressure receiving surface of the valve body, and
• a flow passage control device that uses a fluid pressure generated by opening and closing of the control-suction valve and a pressure on the back side of the valve body to decrease the pressure on the back side of the valve body.