| 摘要 |
PROBLEM TO BE SOLVED: To simplify formation of a cylinder head, enhance freedom degrees of shapes of oil passage parts, eliminate waste of the oil passage parts and reduce the weight of the cylinder head. SOLUTION: Part of mounting parts 21 for mounting lash adjusters and the oil passage parts 27 for supplying oil P to the lash adjusters is formed as a separate portion 20 separately from a cylinder head main body 10 and is mounted to the cylinder head main body 10. An oil passage part 25 in the separate portion 20 has a cylindrical shape having minimum thickness around an oil hole 26 with necessary strength. Due to the oil hole 26, waste in the cylinder head main body 10 side is eliminated. COPYRIGHT: (C)2006,JPO&NCIPI
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