Electromagnetic valve

A capacity control valve comprising:

• a valve housing provided with a suction port, a discharge port and a control port communicating with a suction chamber, a discharge chamber and a control chamber of a variable displacement compressor, respectively;
• a valve body which is disposed inside the valve housing so as to be movable in a reciprocating manner;
• an urging member configured to urge the valve body in one direction;
• and
• a drive device which is connected to the valve housing and is configured to apply a drive force to the valve body, wherein
• the drive device includes a sleeve of which one end portion is closed, a cylindrical fixed iron core of which at least a part is disposed inside the sleeve, a movable iron core which is disposed inside the one end portion of the sleeve and which has an inner space, a drive rod which is disposed inside the fixed iron core so as to be movable in a reciprocating manner and of which a first end is connected to the valve body and a second end is connected to the movable iron core, and a coil portion configured to apply an electromagnetic drive force to the movable iron core, wherein
• the valve body is formed in a cylindrical shape, having an inner space configured to communicate the suction port and is connected to the drive rod in a state in which the drive rod is inserted to an inside of the valve body, wherein
• the drive rod includes a guide portion which faces an inner peripheral surface of the fixed iron core such that a movement of the drive rod is guided in an axial direction and a groove portion which is recessed in an inward radial direction from the guide portion, wherein
• the groove portion is continuously formed from an inside of the valve housing to an inside of the movable iron core, and
• the inner space of the valve body is configured to communicate with the suction port and the inner space of the movable iron core through the groove portion.