| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerating cycle device improved in performance and reliability, which positively supplying refrigerating machine oil to each of a first compressor and a second compressor. SOLUTION: The refrigerating cycle device using an expansion machine 5a and the second compressor 5b driven by recovered power of the expansion machine 5a is provided with an oil separator 60 at an outlet part of the first compressor 1. The refrigerating cycle device has a structure for returning the separated oil to a suction part of the second compressor 5b to positively supply the oil to the second compressor 5b, and reduces an oil circulating rate inside a refrigerating cycle. COPYRIGHT: (C)2009,JPO&INPIT
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