Patent ID: 6494051
Filing Date: 2002-12-17
Classification: F24H,F25B,Y02B

Abstract:
A hot water supply system for heating hot water generating fluid by a heat pump cycle in which a refrigerant pressure on a high-pressure side thereof reaches a level greater than or equal to a critical pressures of a refrigerant, comprising:a compressor for sucking and compressing a refrigerant; a radiator for subjecting the refrigerant discharged from said compressor and the hot water generating fluid to heat exchange; a decompressor for decompressing the refrigerant flowing from said radiator; an evaporator for evaporating the refrigerant flowing from said decompressor, for causing the refrigerant to absorb heat, and for sending the refrigerant toward a suction side of said compressor; a gas-liquid separator for separating the refrigerant flowing from said evaporator into gas refrigerant and liquid refrigerant; and a refrigerant heat exchanger, disposed between said gas-liquid separator and said compressor, for performing heat exchange between the refrigerant to be sucked into said compressor and the refrigerant in said radiator, wherein: said refrigerant heat exchanger is disposed to thermally contact said radiator such that a flow direction of the refrigerant flowing through said refrigerant heat exchanger is opposite to a flow direction of the refrigerant flowing through said radiator.