| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solenoid valve-integrated expansion valve avoiding occurrence of malfunction by relieving impact pressure acting on a valve element by opening of a solenoid valve. <P>SOLUTION: In this solenoid valve-integrated expansion valve, a high-pressure liquid refrigerant supplied from the compressor of a refrigerating cycle is delivered to an evaporator after the high-pressure liquid refrigerant is depressurized and the flow rate of the high-pressure liquid refrigerant is controlled. The solenoid valve-integrated expansion valve includes: a valve body 10 having a valve chamber 150, an orifice 134 communicating with the valve chamber, an inlet passage 102 introducing the high-pressure refrigerant into the valve chamber, and an outlet passage 140 introducing the refrigerant depressurized by the orifice to the outside; the valve element 120 slidably stored in the valve chamber and also opening/closing the orifice; a power element 20 driving the valve element; and the solenoid valve 30 opening/closing the inlet passage. A pressure equalizing passage G<SB POS="POST">1</SB>is provided for allowing two spaces Pr<SB POS="POST">1</SB>, Pr<SB POS="POST">2</SB>positioned at both the ends of the valve element in a sliding direction in the valve chamber to communicate with each other. <P>COPYRIGHT: (C)2012,JPO&INPIT |
