发明名称 |
FORCED AIR-COOLING TYPE INTERNAL COMBUSTION ENGINE AND SADDLED VEHICLE HAVING THE SAME |
摘要 |
<p>There is provided a forced air-cooling type internal combustion englne which excels in both castability and cooling efficiency of a cylinder head and/or a cylinder block. A forced air-cooling type internal combustion engine (101) includes: a cylinder block (103) molded by casting; a cylinder head (100) molded by casting and overlaid on the cylinder block; a shroud (130) covering at least a portion of the cylinder block and at least a portion of the cylinder head; and a fan (121) for rotating to introduce air to the inside of the shroud. At least one of the cylinder block and the cylinder head includes a cooling fin (10) formed at least in a portion covered by the shroud and a cross fin (20) provided so as to cross the cooling fin, the cross fin being connected to the cooling fin. A thickness (t') of the cross fin at a leading edge (20a) thereof is greater than a thickness (t) of the cooling fin at a leading edge thereof.</p> |
申请公布号 |
PH12013000370(A1) |
申请公布日期 |
2015.06.22 |
申请号 |
PH12013000370 |
申请日期 |
2013.12.11 |
申请人 |
YAMAHA HATSUDOKI KABUSHIKI KAISHA |
发明人 |
SATOSHI KUMAGAI |
分类号 |
B62J99/00;F01P1/02;F02B61/02 |
主分类号 |
B62J99/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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