AIR CONDITIONING RELATED TECHNOLOGY FOR VEHICLE HAVING REFRIGERATION CYCLE OF SUPERCRITICAL REFRIGERANT

摘要

PROBLEM TO BE SOLVED: To reduce ventilation loss while improving refrigeration performance in an air conditioning device for a vehicle having refrigeration cycle of a supercritical refrigerant. SOLUTION: This invention relates to the air conditioning device for the vehicle made so that while the supercritical refrigerant circulating a refrigerant radiation path P of a radiator 2 is cooled by being heat-exchanged with the air for cooling the refrigerant introduced from the air introduction surface F of the radiator 2, the cooled refrigerant is heat-exchanged with the air for introducing inside the cabin by an evaporator 5. At least a part of emission air emitted from the inside of the cabin to the outdoors is introduced from the air introduction surface F of the radiator 2 as the air utilizing ventilation loss, and the air utilizing ventilation loss is utilized as a part of the air for cooling the refrigerant. The air conditioning device is constituted so that the air utilizing ventilation loss is introduced on the downstream area (f) of the refrigerant radiation path P out of the air introduction surface F. COPYRIGHT: (C)2005,JPO&NCIPI