Patent ID: 6938356

Claim:
A drying machine comprising: an accommodating chamber in which things to be dried are accommodated and in which a drying operation of the things to be dried is performed; a refrigerant circuit in which a compressor, a radiator, a decompression device, an evaporator and the like are successively connected to one another in an annular form via a piping and in which carbon dioxide is used as a refrigerant and which has a supercritical pressure on a high pressure side thereof; and blower means for blowing air which has exchanged heat with the radiator into the accommodating chamber to allow the air passed through the accommodating chamber to exchange the heat with the evaporator, wherein the blower means constitutes a circulation direction of the air passed through the radiator, and a circulation direction of the refrigerant flowing in the radiator in such a manner as to form a counter-flow.