To provide a freezing cycle device having a gas injection cycle configured such that an operation mode can be switched, in which a circuit structure is simplified.SOLUTION: A freezing cycle device 10 forms a cycle including: a two-stage pressure-rise-type compressor 11; a heating part 30 having a refrigerant heat radiator 12; a higher-stage expansion valve 13; a gas-liquid separator 14; a lower-stage fixed throttle 16; a refrigerant branching part 17; a first expansion valve 19; a first evaporator 20; a second expansion valve 23; a second evaporator 24; and a liquid storing part 26. The first expansion valve 19 and the first evaporator 20 are connected on one side of the refrigerant branching part 17, and the second expansion valve 23 and the second evaporator 24 are connected on the other side of the refrigerant branching part 17. Also, the gas-liquid separator 14 is provided between the higher-stage expansion valve 13 and the refrigerant branching part 17 so as to be configured to guide the gas-phase refrigerant after gas-liquid separation to a middle-pressure port 11b of the compressor 11.SELECTED DRAWING: Figure 1

    【課題】運転モードを切替可能に構成されたガスインジェクションサイクルを有する冷凍サイクル装置において、回路構成を簡素化する。【解決手段】冷凍サイクル装置10では、二段昇圧式の圧縮機11と、冷媒放熱器12を含む加熱部30と、高段側膨張弁13と、気液分離器14と、低段側固定絞り16と、冷媒分岐部17と、第1膨張弁19と、第1蒸発器20と、第2膨張弁23と、第2蒸発器24と、貯液部26によってサイクルが構成されている。冷媒分岐部17の一方側に第1膨張弁19及び第1蒸発器20が接続されており、冷媒分岐部17の他方側に第2膨張弁23及び第2蒸発器24が接続されている。又、気液分離器14は、高段側膨張弁13と冷媒分岐部17の間に配置されており、気液分離された気相冷媒を圧縮機11の中間圧ポート11bに導くように構成されている。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    FREEZING CYCLE DEVICE


    Additional title:

    冷凍サイクル装置


    Contributors:

    Publication date :

    2019-02-21


    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



    Freezing cycle of air conditioner for vehicle

    European Patent Office | 2015

    Free access

    Refrigerant-containing composition, freezing method using same, method for operating freezing device, and freezing device

    OHKUBO SHUN / ITANO MITSUSHI / YOTSUMOTO YUUKI et al. | European Patent Office | 2022

    Free access

    Refrigerant-containing composition, freezing method using same, method for operating freezing device, and freezing device

    OHKUBO SHUN / ITANO MITSUSHI / YOTSUMOTO YUUKI et al. | European Patent Office | 2022

    Free access


    FREEZING PREVENTIVE DEVICE FOR OUTRIGGERS

    NAKANISHI CHIAKI | European Patent Office | 2018

    Free access