| 摘要 |
PROBLEM TO BE SOLVED: To use the heat generated by compression work in an effective manner, while cooling a refrigerant in the compression stroke of a compression mechanism, even in a refrigerant-circulating state that required heating capacity, in a refrigerating device that includes a refrigerant circuit capable of changing over the circulating direction of the refrigerant. SOLUTION: An air conditioner 1, having the refrigerant circuit 10 capable of changing over the circulating direction of the refrigerant by a refrigerant circulating direction switching valve 23, includes a heating medium circuit 11 which includes: a first heating medium cooler 42 for cooling a heating medium, separated from the refrigerant circuit 10 by a cooling source which is not caused by the refrigerant circuit 10; a second heating medium cooler 43 for cooling the heating medium by a cooling source arising from the refrigerant circuit 10; a heating medium cooler switching valve 44 for switching the first heating medium cooler 42 and the second heating medium cooler 43; and a compression mechanism cooler 48 for cooling the refrigerant which is made to flow in a compressor 21 by the heating medium, cooled by the first heating medium cooler 42 or the second heating medium cooler 43. COPYRIGHT: (C)2010,JPO&INPIT
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