FUEL INJECTOR ASSEMBLY, CYLINDER HEAD SIDE MEMBER, AND INTERNAL COMBUSTION ENGINE HAVING FUEL INJECTOR ASSEMBLY AND CYLINDER HEAD SIDE MEMBER

摘要

PURPOSE: A fuel injector assembly, cylinder head side member, and internal combustion engine having fuel injector assembly and cylinder head side member is provided to reduce insertion load when mounting an inject unit on a cylinder head. CONSTITUTION: The compressive deformation of a seal ring(21) by a fitting part(16b) is generates at maximum. The generating timing of the peak of the insertion force of the injector in each inserting hole is different since the position relation in which the compressive deformation of the seal ring by the fitting part is started when the insertion load of the injector in inside of the inserting hole was completely demoralized.