To provide a refrigerating cycle circuit decreasing power consumption of a compressor.
The refrigerating cycle circuit comprises connecting a compressor 11, a condenser 12, a liquid tank 15, an expansion valve 21, and an evaporator 22 sequentially to form a ring, wherein a branch circuit 18 branched from an outlet side of the liquid tank 15 and returning to the compressor 11 via an auxiliary heat exchanger 16 from another expansion valve 17 is provided and the auxiliary heat exchanger 16 is allowed to perform heat exchange between a condensed refrigerant (low temperature) decompressed by the expansion valve 17 and the refrigerant (high temperature) delivered from the condenser 12. As a result, a condensing pressure at the condenser 12 lowers, decreasing an outlet pressure of the compressor 11 to reduce power consumption of the same.
YASUDA HIROSHI
KOKUNI KENSAKU
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