| 摘要 |
The present invention relates to a control valve capable of performing capacity control independent of the pressure of operation fluid and according to preset conditions. The control valve opens and closes a first poppet valve and a second poppet valve by a solenoid section where a solenoid rod is moved according to the magnitude of an electric current. In the control device, the following pressure-receiving areas are set to be substantially equal to each other: the first effective pressure-receiving area of a first pressure-sensing spring device, the second effective pressure-receiving area of a second pressure-sensing spring device, the first pressure-receiving area on the inner side of a portion where a first valve seat surface and a first valve section surface are in contact with each other, and the second pressure-receiving area on the inner side of a portion where a second valve seat surface and a second valve section surface are in contact with each other, in which the first pressure-sensing spring device, the second pressure-sensing spring device, the first valve seat surface, the first valve section surface, the second valve seat surface, and the second valve section surface are forming the first poppet valve and the second poppet valve. |
