| 摘要 |
PURPOSE:To increase the reliability of a refrigerator without reducing the supercharged air pressure by feeding a refrigerant through an air passage bypassing an air cooling evaporator when the temperature of the refrigerant in the refrigerator cooling the supercharged air is increased to the refrigerant deterioration temperature. CONSTITUTION:The air from an air cleaner 10 is fed into a combustion chamber 13 with a supercharger 4 through an inter-cooler 27, an evaporator 15 in a surge tank 14, a throttle valve 17, and an intake port 12. When the temperature of the supercharged air is high, a control circuit 26 connects the solenoid clutch 18 of a compressor 19 via a signal of a sensor 32, and a refrigerant flows into the evaporator 15 from the compressor 19 through a condenser 20, a refrigerant tank 21, a pipe 22, and a flow control valve 23 controlled by the control circuit 26 to cool the supercharged air. When the refrigerant is deteriorated and its temperature is increased, the control circuit 26 opens 25 the bypass passage 24 of a surge tank 14 via a signal of a sensor 31 so as to apply no thermal load to the refrigerant. |
