| 摘要 |
<P>PROBLEM TO BE SOLVED: To allow cooling water to be filled smoothly with reduced possibility of remaining of air when the cooling water filled, while eliminating an air vent valve to reduce installation cost, in an internal combustion engine cooling device. <P>SOLUTION: A reserve tank 15 is installed at the highest position. A second and a third heat exchanger 9, 10, while being arranged side by side horizontally, are installed at a position of height between the reserve tank 15 and the internal combustion engine 1. A close-to-inlet portion of the first heat exchanger 7 in an introduction path 8a is arranged at a position lower than a close-to-outlet portion of the first heat exchanger 7 in a return flow path 8b, and a communication passage 11 connects from a vertical direction lower side portion of the third heat exchanger 10 and the second heat exchanger 9 through the first heat exchanger 7. The volume of the reserve tank 15 is set to be larger than a total of respective volumes of the second and third heat exchangers 9, 10, respective volumes of a close-to-inlet region and respective close-to-outlet regions of the second heat exchanger 9 in the introduction path 8a, and respective volumes of a close-to-inlet region and respective close-to-outlet regions of the third heat exchanger 10 in the return flow path 8b. <P>COPYRIGHT: (C)2012,JPO&INPIT |
