| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a refrigerant supply shortage to a compressor in starting, in a refrigerating cycle device having a supercharger for boosting a refrigerant supplied to the compressor. SOLUTION: This refrigerating cycle device 10 is provided with a refrigerant circuit 9 formed by successively connecting the compressor 11 compressing the refrigerant, a radiator 12 radiating heat of the refrigerant compressed by the compressor 11, an expander 13 expanding the refrigerant of radiating heat by the radiator 12, an evaporator 14 evaporating the refrigerant expanded by the expander 13 and the supercharger 15 boosting and supplying the refrigerant evaporated by the evaporator 14 to the compressor 11 by a flow passage, a bypass passage 38 having both ends connected to the refrigerant circuit 9 so as to bypass the supercharger 15, a valve arranged in the bypass passage 38 and controlling a flow of the refrigerant in the bypass passage 38, and a motive power recovery shaft 31 connecting the expander 13 to the supercharger 15 so that the supercharger 15 is driven by motive power recovered by the expander 13. COPYRIGHT: (C)2009,JPO&INPIT
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