Joint structure for joining a branch member to a high pressure fuel rail
A joint structure for joining a branch member to a high pressure fuel rail which automatically aligns a spigot head of the branch member, if offset, upon tightening of a bolt and increases the rigidity of the spigot head to provide a sufficient degree of mechanical strength so that the spigot head can positively be "seated", and which insures connection between the branch member and the fuel rail if a fuel under substantially high pressure repeatedly flows over a prolonged period of time and if piping is subject to vibration and is free from leakage. In this joint structure, the branch member includes a spherical spigot end surface at its distal end, an annular flange axially spaced away from the spigot end surface, and a conical surface converging from the annular flange toward the spigot end surface.
Usui Kokusai Sangyo Kaisha Ltd.
F F F
F02M F16L F02M
inventional inventional inventional
Nobuo
Kato