To provide an ejector-type refrigeration cycle which can store a sufficient amount of cold heat in a cold storage part without unnecessarily improving a cooling capacity.SOLUTION: A flow rate of a refrigerant flowing into a nozzle part 15a of an ejector 15 from a branch part 13 for branching a flow of a high-temperature high-pressure refrigerant is defined as a nozzle-side flow rate Gn, and a flow rate of a refrigerant flowing into a cold-heat heat exchanger 17 being a cold storage part from the branch part 13 is defined as a cold storage-side flow rate Gc. In a normal operation mode, the lowering of a cooling capacity of a flow-out side evaporator 16 for cooling blown air by evaporating the refrigerant flowing out of a diffuser part 15d of the ejector 15 is suppressed by sufficiently lowering a flow rate ratio GC/Gn, and low-temperature cold heat is sufficiently stored in the cold-heat heat exchanger 17 by increasing a pressure boosting amount of the ejector 15. In a cold discharge operation mode, the supply of the refrigerant to the nozzle part 15a is stopped, and a battery 40 is cooled by cold heat which is stored in the cold-heat heat exchanger 17.SELECTED DRAWING: Figure 1

    【課題】冷却能力を不必要に向上させることなく、蓄冷部に充分な冷熱を蓄えることのできるエジェクタ式冷凍サイクルを提供する。【解決手段】高温高圧冷媒の流れを分岐する分岐部13からエジェクタ15のノズル部15aへ流入する冷媒の流量をノズル側流量Gnと定義し、分岐部13から蓄冷部である蓄冷用熱交換器17へ流入する冷媒の流量を蓄冷側流量Gcと定義する。通常運転モードでは、流量比Gc/Gnを充分に低下させることによって、エジェクタ15のディフューザ部15dから流出した冷媒を蒸発させて送風空気を冷却する流出側蒸発器16における冷却能力の低下を抑制するとともに、エジェクタ15の昇圧量を増加させて蓄冷用熱交換器17に低温の冷熱を充分に蓄える。放冷運転モードでは、ノズル部15aへの冷媒の供給を停止して、蓄冷用熱交換器17に蓄えられた冷熱でバッテリ40を冷却する。【選択図】図1


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    EJECTOR-TYPE REFRIGERATION CYCLE


    Weitere Titelangaben:

    エジェクタ式冷凍サイクル


    Beteiligte:

    Erscheinungsdatum :

    2019-10-24


    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



    Ejector-type refrigeration cycle, and ejector

    YOKOYAMA YOSHIYUKI / YAMADA ETSUHISA / NISHIJIMA HARUYUKI et al. | Europäisches Patentamt | 2019

    Freier Zugriff

    EJECTOR TYPE REFRIGERATION CYCLE

    HASEGAWA HIROYA / OGATA TOSHIHIRO / YAMADA ETSUHISA et al. | Europäisches Patentamt | 2018

    Freier Zugriff

    EJECTOR-TYPE REFRIGERATION CYCLE

    KAWAMOTO YOICHIRO / YAMADA ETSUHISA / NISHIJIMA HARUYUKI et al. | Europäisches Patentamt | 2016

    Freier Zugriff

    EJECTOR-TYPE REFRIGERATION CYCLE

    YOKOYAMA YOSHIYUKI / NISHIJIMA HARUYUKI | Europäisches Patentamt | 2016

    Freier Zugriff

    EJECTOR TYPE REFRIGERATION CYCLE

    YOKOYAMA YOSHIYUKI / NISHIJIMA HARUYUKI | Europäisches Patentamt | 2016

    Freier Zugriff