Expansion valve integrated with electromagnetic valve and refrigeration cycle employing the same

According to the present invention, in an expansion valve (14) integrated with a electromagnetic valve (20), there are provided an inlet refrigerant path (141a, 51), a restriction path (144a) for decompressing and expanding the refrigerant from the inlet refrigerant path (141a, 51), a valve element (144) for adjusting an opening degree of the restriction path (144a), a diaphragm operating unit (30), and an outlet refrigerant path (145b, 146, 147, 148, 141b) for supplying the refrigerant decompressed and expanded in the restriction path (144a) to an evaporator (16). The outlet refrigerant path (145b, 146, 147, 148, 141b) is opened or closed by the electromagnetic valve (20). When the electromagnetic valve (20) is closed, the diaphragm operating unit (30) operates to close the valve element (144) in the restriction path (144a), based on the refrigerant pressure between the valve element (200) of the electromagnetic (20) and the restriction path (144a). In this way, it is possible to reduce the noise of the refrigerant when the electromagnetic valve (20) is closed.