| 摘要 |
PURPOSE:To make air cooling efficiently performable in an energy-saving manner, by cooling supercharging air in utilizing a steam injection type refrigerator, and constituting a refrigerant to be fed to an ejector of an steam injection type refrigerator so as to be head and evaporated by the air to be cooled. CONSTITUTION:In a part at the upstream side of an intercooler inclusive of a duct 4 where hot air compressed at a supercarge 2 is fed in by way of an air passage 3, there is provided with a heater 5 which heats and evaporated a liquid refrigerant. A refrigerant steam outlet 6 of this heater 5 is connected to a steam inlet of an ejector 7, while a steam outlet 10 of this ejector 7 is connected to a steam inlet of a condenser 11. A refrigerant solution outlet of this condenser 11 and a refrigerant solution inlet of the heater 5 are connected to each other via a feed pump 13. And, an interval between a suction pipe 19, whose one end if connected to a refrigerant outlet of an evaporator 18 and a steam discharge pipe 12 as well as an interval between a steam feed pipe 9 and the steam discharge pipe 12 are connected together by both first and second bypass pipes 25 shorting the ejector 7 each.
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