To provide a gas liquid separator having a function for securely supplying a gas-phase refrigerant to a compressor during a heating operation and a function for securely supplying a liquid-phase refrigerant to an expansion valve provided on an inflow side of a heat absorber during cooling operation without requiring increase in the number of components and additionally securing an installation space, and a vehicular heat pump cycle using the gas liquid separator.SOLUTION: A gas liquid separator 1 that is used includes: a refrigerant inflow part 4 for causing a refrigerant to flow into a refrigerant storage space 2; a liquid-phase refrigerant outflow part 5 that is opened in a liquid-phase region of the refrigerant storage space 2 and enables outflow of the liquid-phase refrigerant; and a gas-phase refrigerant outflow part 6 that is opened in a gas-phase region of the refrigerant storage space 2 and enables outflow of the gas-phase refrigerant. The refrigerant inflow part 4 is connected to a refrigerant outflow side 14b of a cabin exterior heat exchanger 14, and a gas-phase refrigerant outflow part 6 is connected to a gas-phase refrigerant passage 17 leading to a compressor 11. The liquid-phase refrigerant outflow part 5 is connected to a refrigerant path leading to a cabin interior absorber expansion valve 15 provided on an inflow side of a cabin interior heat absorber 22.SELECTED DRAWING: Figure 1
【課題】部品点数の増加や設置スペースの新たな確保を伴わずして、暖房運転時において圧縮機へ確実に気相冷媒を供給する機能と、冷房運転時において吸熱器の流入側に設けられる膨張弁へ液相冷媒を確実に供給する機能と、を兼ね備えた気液分離装置とこれを用いた車両用ヒートポンプサイクルを提供する。【解決手段】冷媒を冷媒貯留空間2に流入する冷媒流入部4と、冷媒貯留空間2の液相領域に開口して液相冷媒を流出可能とする液相冷媒流出部5と、冷媒貯留空間2の気相領域に開口して気相冷媒を流出可能とする気相冷媒流出部6と、を備える気液分離装置1を用い、冷媒流入部4を乗員室外熱交換器14の冷媒流出側14bに接続し、気相冷媒流出部6を圧縮機11に通じる気相冷媒通路17に接続し、液相冷媒流出部5を乗員室内吸熱器22の流入側に設けられる乗員室内吸熱器用膨張弁15に至る冷媒経路に接続する。【選択図】 図1
GAS LIQUID SEPARATOR AND VEHICULAR HEAT PUMP CYCLE USING THE SAME
気液分離装置およびこれを用いた車両用ヒートポンプサイクル
2025-01-24
Patent
Electronic Resource
Japanese
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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