Patent ID: 11959667
Assignee: DAIKIN INDUSTRIES, LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. The refrigeration cycle device according to claim 6, wherein
the main refrigerant circuit has a gas-liquid separator between the main expansion valve and the subcooling heat exchanger, the gas-liquid separator causing the main refrigerant decompressed at the main expansion valve to undergo a gas-liquid separation,
a degassing pipe that extracts the main refrigerant in a gas state and sends the main refrigerant in the gas state to the suction side of the main compressor is connected to the gas-liquid separator,
the suction injection pipe is provided at the main refrigerant circuit so that the main refrigerant in a liquid state that flows between the gas-liquid separator and the subcooling heat exchanger branches off, and
the subcooling heat exchanger is provided at the main refrigerant circuit so that the main refrigerant in the liquid state that flows between the gas-liquid separator and the main use-side heat exchanger is cooled by heat exchange with the main refrigerant that flows in the suction injection pipe and the main refrigerant that flows in the degassing pipe.