PROBLEM TO BE SOLVED: To provide a vapor compression type heat pump system using an internal combustion engine as a drive source capable of flexibly corresponding to load fluctuation.;SOLUTION: The vapor compression type heat pump system is provided with a refrigerating cycle arranged with a compressor 10 using the engine as the drive source, a condenser 20, an expansion valve 30, and an evaporator 40 in this order. It is a cooling system comprised by connecting a first reservoir 60 storing a liquid refrigerant to a refrigerant pipe connecting the condenser 20 and the expansion valve 30, and connecting a second reservoir 70 storing a gas refrigerant to a refrigerant pipe connecting the evaporator 40 and the compressor 10.;COPYRIGHT: (C)2006,JPO&NCIPI
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