FASTENING STRUCTURE OF FUEL DELIVERY PIPE AND CYLINDER HEAD OF INTERNAL COMBUSTION ENGINE

A fastening structure of a fuel delivery pipe (2) and a cylinder head (4) of an internal combustion engine includes three or more bosses (508, 510, 512, 514, 516, 520, 522, 524, 526, 528) provided on each of the cylinder head and the fuel delivery pipe, and fastening portions formed by bolting the bosses on the cylinder head to the bosses on the fuel delivery pipe. The fastening portions at both end portions of the fuel delivery pipe are less rigid than one or more fastening portions in a middle between the fastening portions positioned at both end portions of the fuel delivery pipe.