Patent ID: 10473075

Abstract:
An objective of the present invention is to provide a fuel rail that can be used at a high fuel pressure of 50 MPa or more, for example, has good engine mountability, and has improved material yield. The present invention is regarding a fuel rail including a main pipe portion 10 extending in a longitudinal direction and a plurality of distribution pipe portions 20a, 20b, 20c, and 20d branching from the main pipe portion in a cross direction, in a fuel supply system in which a fuel compressed by a fuel pump passes through a fuel passage hole of the fuel rail fixed to an engine trough a bracket or a stay, the fuel is supplied to injectors, and the fuel is injected into the engine, the present invention is to cut and form the main pipe portion 10 and the plurality of distribution pipe portions 20a, 20b, 20c, and 20d from a same single-sheet plate 100, the single-sheet plate being a plane plate or a flat plate having an irregular shape in cross section, and to seamlessly configure a main pipe hole 11, distribution pipe holes 21a, 21b, 21c, and 21d, and injector attaching holes 22a, 22b, 22c, and 22d, without joints.