| 摘要 |
PROBLEM TO BE SOLVED: To suitably maintain engine heating performance and warm-up effect even when an air bleeding line is provided in an EGR cooler. SOLUTION: A water-cooled EGR cooler 2 is mounted on an upper part of an engine 1, the air bleeding line 8 is provided in order to bleed mixed air from an uppermost level of a water-cooled region of the EGR cooler 2 and guide it to a radiator 5, and a throttling part 10 for restraining communication of the cooling water is formed in a half way of the air bleeding line 8. COPYRIGHT: (C)2006,JPO&NCIPI
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