REFRIGERATION CYCLE DEVICE

To provide a refrigeration cycle device enabling improvement of cooling performance of an evaporator and reduction in compression power of a compression apparatus while securing manufacturability of the device.SOLUTION: A refrigeration cycle device 10 includes a compression apparatus 12, a radiator 14, an ejector 16, a gas liquid separator 18, a first decompression apparatus 20, and an evaporator 22. The refrigeration cycle device 10 also includes: a first intermediate pressure passage 26 for connecting the gas liquid separator 18 with a high stage side compression section 124; a second intermediate pressure passage 30 for connecting the gas liquid separator 18 with the first decompression apparatus 20; and a high pressure passage 24 for connecting the radiator 14 with the ejector 16. The refrigeration cycle device 10 further includes a suction passage 34 for guiding part of a refrigerant flowing in the high pressure passage 24 to a refrigerant suction port 162 of the ejector 16. The suction passage 34 includes: a second decompression apparatus 38 for decompressing the refrigerant; and an internal heat exchanger 36 for cooling the refrigerant flowing in the second intermediate pressure passage 30 by using the refrigerant decompressed by the second decompression apparatus 38.SELECTED DRAWING: Figure 1 【課題】装置の製造性を確保しつつ、蒸発器の冷却性能の向上および圧縮装置の圧縮動力の低減を図ることが可能な冷凍サイクル装置を提供する。【解決手段】冷凍サイクル装置１０は、圧縮装置１２、放熱器１４、エジェクタ１６、気液分離器１８、第１減圧機器２０、蒸発器２２を備える。冷凍サイクル装置１０は、気液分離器１８と高段側圧縮部１２４とを接続する第１中間圧通路２６、気液分離器１８と第１減圧機器２０とを接続する第２中間圧通路３０、放熱器１４とエジェクタ１６とを接続する高圧通路２４を備える。冷凍サイクル装置１０は、高圧通路２４を流れる冷媒の一部をエジェクタ１６の冷媒吸引口１６２に導く吸引通路３４を備える。吸引通路３４には、冷媒を減圧させる第２減圧機器３８と、第２減圧機器３８で減圧された冷媒によって第２中間圧通路３０を流れる冷媒を冷却する内部熱交換器３６と、が設けられている。【選択図】図１