| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance the layout flexibility and the vapor releasing performance of cooling systems of first and second turbochargers. <P>SOLUTION: There is provided a cooling device of turbochargers of an engine 1 for a vehicle, in which a first turbocharger and a second turbocharger located above the level of the first turbocharger are provided at a rear side wall of the engine 1. The cooling device includes first and second water supply passages 26, 36 for respectively supplying cooling water from the engine 1 to first and second center housings 23, 33 of the first and second turbochargers, and first and second return passages 27, 37 for respectively returning cooling water from the first and second turbochargers to the engine 1. A cooling water connection portion of the first water supply passage 26 is provided at a position located above a cooling water connection portion of the second water supply passage 37. A vapor releasing passage 73 is formed between the second turbocharger and an upper tank 71b which is provided outside an engine body at a position located above the connection portion of the second return passage of the second turbocharger. <P>COPYRIGHT: (C)2012,JPO&INPIT |
