Patent ID: 6973804

Claim:
A duplex-type heat exchanger for use in a single refrigeration cycle in which condensed refrigerant is decompressed and then the decompressed refrigerant is evaporated, said duplex-type heat exchanger comprising: a subcooler configured to subcool the condensed refrigerant by exchanging heat with ambient air; an evaporator configured to evaporate the decompressed refrigerant by exchanging heat with ambient air; and a decompressing device provided between the subcooler and the evaporator and configured to decompress the condensed refrigerant, wherein either the subcooler or the evaporator is positioned along an air flowing direction at a windward side relative to either the evaporator or the subcooler, respectively, and the subcooler and the evaporator at least partially overlap each other along the air flowing direction, and wherein heat exchange is performed between the refrigerant passing through said subcooler and the refrigerant passing through said evaporator to thereby cool the refrigerant in said subcooler and heat the refrigerant in said evaporator.