Variable displacement compressor control valve

A variable displacement compressor control valve comprising:

• a valve main body which has a valve chamber provided with a valve port and a Ps inlet/outlet port communicating with a suction chamber of a compressor, is provided with a Pd introduction port communicating with a discharge chamber of the compressor at an upstream side from the valve port, and is provided with a Pc inlet/outlet port communicating with a crank chamber of the compressor at a downstream side from the valve port, a main valve element for opening and closing the valve port, an electromagnetic actuator having a plunger for moving the main valve element in a valve port opening/closing direction, a pressure-sensitive chamber into which a suction pressure Ps is introduced from the compressor through the Ps inlet/outlet port, and a pressure-sensitive reaction member which urges the main valve element in the valve port opening/closing direction in accordance with a pressure of the pressure-sensitive chamber;
• wherein an in-valve release passage for releasing a pressure Pc of the crank chamber to a suction chamber of the compressor through the Ps inlet/outlet port when the electromagnetic actuator is energized, and the valve port is closed by the main valve element, is provided, and the in-valve release passage is constructed by including an inside of the main valve element, an inside of the plunger, and a gap formed between a bottom surface of the plunger and a stopper surface provided at the valve main body, and at a time of stopping energization to the electromagnetic actuator, the in-valve release passage is blocked by pressing the bottom surface of the plunger against the stopper surface.