| 摘要 |
PROBLEM TO BE SOLVED: To provide a vapor compression refrigerating cycle capable of solving problems regarding a space and weight by integrating an oil separator and a vapor-liquid separator and improving a refrigerating capacity. SOLUTION: The vapor compression refrigerating cycle includes a compressor, a heat radiator for releasing the heat of a refrigerant which is heated and compressed at a high temperature and high pressure by the compressor, a first stage decompression mechanism for decompressing the high-pressure refrigerant whose heat is released by the heat radiator, the oil separator and the vapor-liquid separator for the oil-separation and vapor-liquid-separation of the refrigerant which is decompressed by the first stage decompression mechanism, a second stage decompression mechanism for further decompressing a liquid refrigerant separated by the vapor-liquid separator and an evaporator for evaporating the refrigerant which is decompressed to a low temperature and low pressure by the second stage decompression mechanism and connects them sequentially in a ring shape with a refrigerant flow passage. The oil separator and the vapor-liquid separator are integrated and a vapor refrigerant and oil separated from the oil separator integrated vapor-liquid separator are made to flow into the compressor. COPYRIGHT: (C)2007,JPO&INPIT
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