| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat pump cycle for stabilizing desired heat absorbing capability for a long period. SOLUTION: An evaporator 40 is arranged between an ejector 30 and a gas-liquid separator 50. Thus, refrigerant discharged from a compressor 10 is circulated in the evaporator 40, and so the amount of the refrigerant discharged from the compressor 10 is secured even when the pumping capability of the ejector 30 is greatly changed with an individual difference (manufacturing dispersion) or a secular change of the ejector 30. The great change in the amount of the refrigerant to be circulated in the evaporator 40 is suppressed to stabilize the desired heat absorbing capability for a long period. The flow rate of the refrigerant in the evaporator 40 is increased to increase heat transmissivity between the refrigerant and the evaporator 40. The heat exchanging capability, namely, the heat absorbing capability of the evaporator 40 is improved without increasing the size of the evaporator 40, resulting in the improved operating efficiency of the heat pump cycle. COPYRIGHT: (C)2004,JPO&NCIPI
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