| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling structure of easy constitution for an internal combustion engine, in which a high temperature part of the internal combustion engine can be cooled more efficiently. SOLUTION: Close to the high temperature part of a cast part 12, a high heat conductivity member 26 is disposed to be partly protruded into a passage 22 in which cooling liquid flows. The protruded part of the high heat conductivity member 26 includes fins 28 to increase heat radiation area, and direct the flow of the cooling liquid toward the high temperature part. Heat of the high temperature part is transmitted through the high heat conductivity member 26 and the fins 28 to the cooling liquid side, and cooling liquid is directed toward a root part 26a of the high heat conductivity member 26 to increase cooling efficiency. COPYRIGHT: (C)2005,JPO&NCIPI
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