PROBLEM TO BE SOLVED: To sufficiently improve coefficient of performance (COP) of a cycle, in the ejector type refrigeration cycle including an internal heat exchanger.SOLUTION: A refrigerant of supercooled liquid phase cooled in a high pressure-side refrigerant passage 15a of an internal heat exchanger 15 is swirled to be decompressed and boiled in a swirling space 30a configuring swirl flow generation means, and allowed to flow into a nozzle portion 13a of an ejector 13. Thus the boiling of the refrigerant at the nozzle portion 13a is enhanced, and ejector efficiency of the ejector 13 is improved. Further by connecting the refrigerant flowing out from an evaporator 14, to a refrigerant suction port 31b side of the ejector 13, unnecessary temperature rise of suction refrigerant in a compressor 11 can be suppressed. Thus COP of an ejector type refrigeration cycle 10 can be sufficiently improved without adversely affecting durability life of the compressor 11.SELECTED DRAWING: Figure 1

    【課題】内部熱交換器を備えるエジェクタ式冷凍サイクルにおいて、サイクルの成績係数(COP)を充分に向上させる。【解決手段】内部熱交換器15の高圧側冷媒通路15aにて冷却された過冷却液相冷媒を、旋回流発生手段を構成する旋回空間30aにて減圧沸騰するまで旋回させて、エジェクタ13のノズル部13aへ流入させる。これにより、ノズル部13aにおける冷媒の沸騰を促進してエジェクタ13のエジェクタ効率を向上させる。さらに、蒸発器14から流出した冷媒をエジェクタ13の冷媒吸引口31b側へ接続することで、圧縮機11吸入冷媒の不必要な温度上昇を抑制する。これにより、圧縮機11の耐久寿命に悪影響を与えることなく、エジェクタ式冷凍サイクル10のCOPを充分に向上させる。【選択図】図1


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    Title :

    EJECTOR TYPE REFRIGERATION CYCLE


    Additional title:

    エジェクタ式冷凍サイクル


    Contributors:

    Publication date :

    2016-05-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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



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