| 摘要 |
PROBLEM TO BE SOLVED: To realize a low cost and high COP in a refrigeration cycle comprising two evaporators used for twin air conditioners or the like. SOLUTION: The refrigeration cycle 1 comprises a compressor 2, a radiator 3, a main decompressor 4, a main evaporator 6, a sub-decompressor 5, a sub-evaporator 7, and a switching means 10. The main decompressor 4 consists of a high-pressure control valve which adjusts the flow rate of refrigerant so that the inlet-side refrigerant pressure of the main decompressor 4 is a predetermined value dependently on the inlet-side refrigerant pressure of the main-decompressor 4 and independently from the refrigerant temperature, and the sub-decompressor 5 consists of an overheat control valve which adjusts the flow rate of refrigerant so that the outlet-side refrigerant overheat of the sub-decompressor 5 is a predetermined value. COPYRIGHT: (C)2007,JPO&INPIT
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