| 摘要 |
PROBLEM TO BE SOLVED: To provide a water-cooled adapter, in which an increase in size thereof caused by provision of fixing parts for fixing an adapter body is suppressed.SOLUTION: In the water-cooled adapter 1, the fixing parts 11 used for fixing the adapter body 5 to a cylinder head is disposed to an upper part of the adapter body 5, and between a plurality of exhaust passages 4, which are formed to the adapter body 5 to be in parallel with each other with respect to a horizontal direction. An upper part of a water jacket 6 of the water-cooled adapter 1 is formed to surround the fixing parts 11. Therefore, the fixing parts 11 are disposed to be close to an exhaust passage 4 side, while suppressing overlapping of the fixing parts 11 with the water jacket 6. That is, it is not necessary to make the fixing parts 11 protrude upward (in a direction separated from the exhaust passages 4) of the water jacket 6, with respect to a portion between the exhaust passages 4 in the water jacket 6 not to overlap the fixing parts 11 with the water jacket 6. |
