| 摘要 |
PURPOSE:To reduce the size of an air-conditioning system by controlling the circulation of air-conditioning refrigerant according to the temperature condition of cooling water when cooling the circulating cooling water for a water-cooled intercooler by means of the air-conditioning refrigerant for a vehicle. CONSTITUTION:High temperature supply air fed from a supercharger 7 is cooled by the water circulating through a heatexchanger 31 in an intercooler 30. The water in the heatexchanger 31 passes through a circulation pump 34 and a radiation heatexchanger 33a and circulates to the heatexchanger 31. The refrigerant for a vehicle air-conditioner passes through a compressor 44, a condenser 48, a solenoid valve 64 and an expansion valve 52 and cooled in a heatexchanger 54 then returns to a compressor 44. A portion of the refrigerant circulates through an expansion valve 58, a solenoid valve 66 and a water cooler 33 for intercooler. According to a supercharged air temperature 77, a controller 70 controls the solenoid valve 66 and the rotation of the circulation pump 34 thus minimizing the circulation of the air-conditioning refrigerant.
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