COOLING MEDIUM CYCLE DEVICE

摘要

PROBLEM TO BE SOLVED: To improve the coefficient of performance during cooling operation while suppressing temperature rise in a sealed container by using an intermediate cooling circuit for permitting heat radiation of a cooling medium discharged from a first rotating compression element during cooling operation.

SOLUTION: The cooling medium cycle device for cooling/heating operation comprises a compressor 10 having first and second rotating compression elements 32, 34 in the sealed container 12. It has the intermediate cooling circuit 150 for introducing the cooling medium compressed by the first rotating compression element 32 into the second rotating compression element 34 and permitting heat radiation of the cooling medium discharged from the first rotating compression element 32 and a three-way valve 162 for opening a flow path in the intermediate cooling circuit 150 during cooling operation.

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