Invention Grant
US07900603B2 Automobile-use high pressure fuel injection accumulator-distributor and method of production of the same 有权
汽车用高压燃油喷射蓄能器 - 分配器及其生产方法

Automobile-use high pressure fuel injection accumulator-distributor and method of production of the same
Abstract:
An automobile-use high pressure fuel injection accumulator-distributor comprised of a body of an automobile-use high pressure fuel injection accumulator-distributor to which pipe attachment holders for attaching fuel distribution pipes for distributing fuel to injection nozzles at an equal pressure are joined by liquid phase diffusion bonding etc., wherein each holder is comprised of a tube part at the pipe side and a partial cone-shaped skirt at the end of the rail body side, each holder skirt has a shape spreading in a partial cone shape toward the joint face end with an angle from the holder tube part side face of 10° or more in a range of a length of 2 mm or more in the holder axial direction at the outer circumference of the end of the holder at the joint face side, the rail body has holder joint position determining guide grooves at its holder joint positions, each guide groove is comprised of a groove inner circumferential wall of a size enabling engagement with a holder joint inner circumference, a groove bottom forming a joint face with the holder, and a groove outer circumferential wall of a partial cone shape bulging out to the inner side parallel to the holder skirt from the groove bottom toward the holder side at a depth of 2 mm or more, and a metal ring is plastically deformed and press-fit into a clearance of 0.5 mm or more between each holder skirt and the groove outer circumferential wall and parallel to the joint face.
Information query
Patent Agency Ranking
0/0