| 摘要 |
A charge air cooler includes a high temperature side heat exchanger and a low temperature side heat exchanger. The high temperature side heat exchanger is provided on a high temperature side cooling flow path through which a first refrigerant cooled by a first heat exchanger (radiator) flows. The low temperature side heat exchanger is provided on a low temperature side cooling flow path through which a second refrigerant cooled cooler than the first refrigerant by a second heat exchanger (sub-radiator) flows. The low temperature side heat exchanger cools, by the second refrigerant, intake air cooled by the high temperature side heat exchanger. According to the above charge air cooler, the second heat exchanger (sub-radiator) can be prevented from becoming big in size, and intake air temperature can be cooled to desired temperature.
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