Patent ID: 7036744

Claim:
A solenoid valve-equipped expansion valve in which an expansion valve for adiabatically expanding refrigerant and a stop valve for opening and closing a refrigerant passage are integrated with each other, characterized by comprising: a driving force-transmitting member inserted into a valve hole of the expansion valve in an urged state such that the driving force-transmitting member is always in abutment with a power element; a common valve element commonly used by the expansion valve and the stop valve, the common valve element being disposed on an opposite side of the valve hole of the expansion valve to the power element, such that the common valve element is axially movable by being guided by the driving force-transmitting member; a spring for urging the common valve element in a valve-closing direction with respect to the driving force-transmitting member; and a solenoid for electromagnetically coupling the common valve element and the driving force-transmitting member with each other when the solenoid is energized, to thereby transmit displacement of the power element to the common valve element, wherein the solenoid includes a first core movable along the driving force-transmitting member while holding the common valve element, a second core rigidly fixed to the driving force-transmitting member, and a solenoid coil for causing attraction of the first core and the second core to each other or releasing of the first core and the second core from each other, and wherein the spring is interposed between the first core and the second core.