| 摘要 |
PROBLEM TO BE SOLVED: To ensure the large enthalpy difference between refrigerant flowing into an evaporator and refrigerant flowing out of the evaporator without the need to provide an auxiliary heat exchanger in an air conditioning duct.SOLUTION: A vehicle air conditioner comprises an overcooling heat exchanger 4 provided outside of an air conditioning duct 10 and cooling refrigerant flowing out of a condenser 3 by implementing heat exchange between the refrigerant flowing out of the condenser 3 and flowing into a decompression device 5 and cooling liquid cooled by a heater core 34. Since the refrigerant flowing out of the condenser 3 and flowing into the decompression device 5 is further cooled by the overcooling heat exchanger 4, it is possible to ensure the large enthalpy difference between the refrigerant flowing into an evaporator 6 and the refrigerant flowing out of the evaporator 6.SELECTED DRAWING: Figure 1 |
