Patent ID: 7152422

Claim:
A vapor compression refrigerator wherein the refrigerant is sucked into and compressed by a compressor and circulated through a condenser, a pressure reducing device and an evaporator in that order while the evaporator exhibits the refrigeration function, comprising: a Rankine cycle where the refrigerant is circulated through a pump for discharging the refrigerant, a heater for heating the refrigerant with the waste heat of a heat generating device as a heat source, an expander and a condenser in that order, and power is recovered by the expander due to the expansion of the refrigerant from the heater; and a hot gas cycle where a switching path having a first restricting portion can connect a point between the pump and the heater and the suction side of the compressor, the refrigerant is circulated through the heater and the switching path in that order, and the heater exhibits the function of heating the heat generating device.