PROBLEM TO BE SOLVED: To provide an expansion device which can surely exert a reduction effect of refrigerant flow noise, and a refrigeration cycle of an air conditioner for a vehicle using the same.SOLUTION: In an expansion device 1 in which a valve body 41 of a refrigerant flow rate adjustment mechanism 40 is stored in a valve chamber 5 in which a refrigerant of a body 2 is introduced, a first throttle part 4 is provided between an introduction passage 3 and the valve chamber 5, and a second throttle part 6 in which a flow passage area is smaller than that of the first throttle part 4 is provided between the valve chamber 5 and a lead-out passage 7, the valve chamber 5 is formed so as to have a space S around the valve body 41, and the first throttle part 4 is formed so as to face the space S around the valve body 41, so that the refrigerant introduced in the valve chamber 5 from the first throttle part 4 is allowed to flow into the second throttle part 6 by going through the space S around the valve body 41 without going through a coil spring 43.SELECTED DRAWING: Figure 4

    【課題】冷媒流動音の低減効果を確実に発揮できる膨張装置及びこれを用いた車両用空調装置の冷凍サイクルを提供する。【解決手段】本体2の冷媒が導入される弁室5に冷媒流量調整機構40の弁体41が収納され、導入通路3と弁室5との間に第1絞り部4が設けられ、弁室5と導出通路7との間に第1絞り部4より流路面積の小さい第2絞り部6が設けられた膨張装置1において、弁室5を弁体41の周囲に空間Sを有するように、第1絞り部4を弁体41の周囲の空間Sに臨むように形成して、第1絞り部4から弁室5内に導入された冷媒を、コイルバネ43を経由せずに、弁体41の周囲の空間Sを通って、第2絞り部6に流れるようにする。【選択図】図4


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    Titel :

    EXPANSION DEVICE AND REFRIGERATION CYCLE OF AIR CONDITIONER FOR VEHICLE


    Weitere Titelangaben:

    膨張装置及びこれを用いた車両用空調装置の冷凍サイクル


    Beteiligte:

    Erscheinungsdatum :

    30.05.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

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



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