| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling system capable of reducing running costs, and capable of preventing insufficient lubrication and failure of a compressor without deteriorating cooling efficiency even when an outside air temperature is high such as in midsummer. SOLUTION: In the cooling system, since a refrigerant with a lowered temperature can be sent into a condenser 11 in the compressor 10, even when the outside air temperature is high such as in midsummer, the refrigerant can be positively condensed in the condenser 11, and deterioration of cooling efficiency can be prevented. Since the refrigerant and oil can be cooled without using water or the like, running costs can be reduced. Since the oil can be returned to a suction side of the compressor 10 while controlling a flow rate of the oil passing through a bypass passage 30 by adjusting the opening of a flow control valve 33, insufficient lubrication and failure of the compressor 10 can be positively prevented. COPYRIGHT: (C)2007,JPO&INPIT
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