PROBLEM TO BE SOLVED: To provide a heat pump cycle that can prevent oil from being sucked out when a refrigerant in a refrigerant circuit is collected.SOLUTION: A heat pump cycle HP comprises: a refrigerant circuit R including a compressor 2 that compresses a refrigerant, a radiation heat exchanger (a heat radiator 4 and an outdoor heat exchanger 7) that causes the refrigerant to radiate heat, a pressure reducing device (an outdoor expansion valve 6 and an indoor expansion valve 8), an absorption heat exchanger (the outdoor heat exchanger 7 and a heat absorber 9) that causes the refrigerant to absorb heat; and an accumulator 12 connected to the refrigerant suction side of the compressor 2. An inlet pipe (a refrigerant pipe 13C) of the accumulator 12 is provided with a service valve 64.SELECTED DRAWING: Figure 1
【課題】冷媒回路内の冷媒を回収する際に、オイルが吸い出されてしまうことを防止することができるヒートポンプサイクルを提供する。【解決手段】ヒートポンプサイクルHPは、冷媒を圧縮する圧縮機2と、冷媒を放熱させる放熱用熱交換器(放熱器4、室外熱交換器7)と、減圧装置(室外膨張弁6、室内膨張弁8)と、冷媒を吸熱させる吸熱用熱交換器(室外熱交換器7、吸熱器9)を有する冷媒回路Rを備えたものであって、圧縮機2の冷媒吸込側に接続されたアキュムレータ12を備え、このアキュムレータ12の入口配管(冷媒配管13C)にサービスバルブ64を設けた。【選択図】図1
HEAT PUMP CYCLE, VEHICULAR AIR CONDITIONING DEVICE COMPRISING THE SAME, AND REFRIGERATION CYCLE
ヒートポンプサイクル、それを備えた車両用空気調和装置、及び、冷凍サイクル
2018-03-15
Patent
Elektronische Ressource
Japanisch
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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