Patent ID: 6508073
Filing Date: 2003-01-21
Classification: F24H,F25B,F28D,F28F

Abstract:
A hot water supply system comprising:a heat pump cycle in which refrigerant including oil circulates; and a tank in which water heated by a heat exchange with high-temperature refrigerant of the heat pump cycle is stored, the heat pump cycle includes: a compressor for compressing and discharging refrigerant, an oil separator, disposed. at a refrigerant discharge side of the compressor, for separating the oil from the refrigerant discharged from the compressor, a heat exchanger which is disposed to perform a heat exchange between the oil separated in and flowing from the oil separator, and the water flowing from the tank, and an oil returning passage through which the oil separated from the refrigerant in the oil separator returns to the compressor after passing through and heat-exchanging with the water in the heat exchanger.