To provide an improved expansion valve which can achieve low costs and low noise.SOLUTION: An expansion valve includes: a valve body 2 including an annular valve seat 20; a valve element 3 which is seated on the valve seat 20 to block passage of a fluid and separates from the valve seat 20 to allow the passage of the fluid; a coil spring 41 which is disposed in a valve chamber VS with its side surface facing flow of the fluid flowing from a first passage 21 and biases the valve element 3 toward the valve seat 20; and a spring pin 7 which is disposed in the coil spring 41 and at least partially contacts with an inner periphery of the coil spring 41.SELECTED DRAWING: Figure 2

    【課題】低コストであり且つ低騒音を実現できる、改良された膨張弁を提供する。【解決手段】膨張弁は、環状の弁座20を備えた弁本体2と、弁座20に着座することにより流体の通過を阻止し、弁座20から離間することにより流体の通過を許容する弁体3と、第1流路21から流入する流体の流れに対して側面を向けて弁室VSに配置され、弁体3を弁座20に向かって付勢するコイルばね41と、コイルばね41の内部に配置され、少なくとも一部がコイルばね41の内周に接触するスプリングピン7と、を有する。【選択図】図2


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    Title :

    EXPANSION VALVE


    Additional title:

    膨張弁


    Contributors:

    Publication date :

    2019-09-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16K VALVES , Ventile / 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 / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS



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