| 摘要 |
PROBLEM TO BE SOLVED: To improve efficiency of a vapor compression type refrigerating machine by improving a power recovery amount in an ejector. SOLUTION: A pipe 60 for connecting a radiator 20 to the ejector 40 is covered with a heat insulation material 61 to isolate a refrigerant passage from an atmosphere in terms of heat isolation. Thereby, enthalpy is prevented from dropping by cooling, by the atmosphere, a hot refrigerant before being decompressed by the ejector 40, and reduction of the maximum theoretical value of energy recoverable in decompression expansion is prevented. Accordingly, consumption power of a compressor 10 is reduced by improving an ejector effect, that is, the power recovery amount by the ejector 40, so that an ejector cycle is efficiently operated. COPYRIGHT: (C)2004,JPO
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