Patent attributes
A capacity control valve includes: a valve housing having a discharge port, a suction port and a control port; a rod driven by a solenoid; a main valve configured to open and close a communication between the discharge port and the control port; an opening and closing valve biased in a valve closing direction, and configured to open and close a CS communication passage communicating with the suction port and a control fluid supply chamber formed in the valve housing; and a CS valve to open and close a communication between the control port and the suction port, the CS valve body being movable relative to the main valve body, wherein the main valve body and the CS valve body move together as the rod moves in a closed state of the main valve.