| 摘要 |
PROBLEM TO BE SOLVED: To prevent rotation of a fuel pipe at a cylinder head and to eliminate a defect of a conventional key slot. SOLUTION: Undesired rotation in an engine cylinder head 14 of a fuel pipe 10 in a circular shape in cross section is prevented from occurring through combination of key - key slot having a comparatively small size. A key slot 40 consists of a groove formed in a cylindrical sleeve 38 drive-fitted in a counterbored hole machined in the cylinder head. An engaged key 32 may be a ball, a pin, and a bar drive-fitted in the side of the fuel pipe.
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