Disclosed is an expansion valve to solve the problem with respect to noise by discharging liquefied refrigerant to an orifice hole in advance to discharge gasified refrigerant when the refrigerant flowing into the expansion valve is separated to be liquefied and gasified. The expansion valve comprises: a valve body in which a first flow path and a second flow path for the inflow and outflow of refrigerant are formed; a rod provided to slide in the valve body; a head provided at one side of the valve body, and moving the rod to reciprocate in accordance with a temperature of the refrigerant; an elastic member provided in the second flow path for an elastic force to be applied to the rod; an opening and closing unit provided between the rod and the elastic member to open and close an orifice hole of the second flow path; and a liquefied refrigerant guide unit discharging liquefied refrigerant of refrigerant flowing into the second flow path to the orifice hole in advance compared to gasified refrigerant.

    팽창밸브로 유입되는 냉매가 액상과 기상으로 분리된 경우에도 액상 냉매를 먼저 오리피스홀로 배출한 후 기상 냉매를 배출시켜 소음 문제를 해결한 팽창밸브가 개시된다. 팽창밸브는 냉매의 유,출입을 위한 제1 유로 및 제2 유로가 형성된 밸브 본체와, 상기 밸브 본체에 슬라이딩 가능하게 구비된 로드와, 상기 밸브 본체의 일측에 구비되며 냉매의 온도에 따라 상기 로드를 왕복 이동시키는 헤드와, 상기 로드 측으로 탄성력이 작용하도록 제2 유로에 구비되는 탄성부재와, 상기 로드와 탄성부재의 사이에 구비되어 제2 유로의 오리피스홀을 개폐하는 개폐부를 포함하며, 상기 제2 유로로 유입되는 냉매 중 액상 냉매를 기상 냉매보다 먼저 오리피스홀로 배출시키는 액상냉매 가이드부를 포함한다.


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    Title :

    EXPANSION VALVE


    Additional title:

    팽창밸브


    Contributors:

    Publication date :

    2016-12-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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