| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress the rate of upward leakage of oil in a refrigerating cycle device and to improve efficiency of a refrigerating cycle during cooling and heating operations and reliability of a compressor. Ž<P>SOLUTION: The refrigerating cycle device is equipped with a compressor 1, a four-way valve 2, an outdoor side heat exchanger 3, an expansion valve 4, an indoor side heat exchanger 5, and an accumulator 6. The refrigerating cycle device further includes an oil separator 7 provided between the discharge side of the compressor 1 and the four-way valve 2, a bypass circuit 9 connecting the accumulator 6 to the oil separator 7, the bypass circuit being provided with a capillary tube 10 for controlling the oil circulation amount flowing in the bypass circuit 9. The capillary tube 10 is composed of one having distribution resistance whereby the oil circulation amount flowing in the bypass circuit is more than the oil circulation amount returning from the accumulator 6 to the suction side of the compressor. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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