| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigeration cycle device having a good balance between price and performance by solving such problems that it is necessary to design that the design volume ratio between a compression mechanism and an expansion mechanism is set to be smaller to the utmost than a density ratio in the actual operation condition, or increase in manufacturing costs results from providing a flow adjusting valve and the refrigeration cycle device can not be efficiently operated, in the refrigeration cycle device provided with the expansion mechanism recovering power. SOLUTION: In this refrigeration cycle device, the first compression mechanism 11 and the second compression mechanism 13 are connected in parallel, and a service side heat exchanger 14, the expansion mechanism 15 recovering power, and a heat source side heat exchanger 17 are successively connected. The first compression mechanism 11 and a first driving means 19 are connected to each other by a first shaft, and the second compression mechanism 13, the expansion mechanism 15 and a second driving means 12 are connected to each other by a second shaft. COPYRIGHT: (C)2008,JPO&INPIT
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