| 摘要 |
PROBLEM TO BE SOLVED: To realize an accumulator fuel injection system capable of dropping a fuel pressure right after injection by each injector, without causing the degradation of assemblability and the risk of fuel leakage.SOLUTION: An accumulator fuel injection system comprises: a plurality of coupling connectors 11 including coupling ports 12 connected to respective injectors 2; and a fuel injection pipe 13 penetrating the respective coupling connectors 11 and fixing the coupling connectors 11 by diffusion bonding so as to integrally specify connection positions and connection attitudes of all the coupling connectors 11 relative to the injectors 2, and is configured so that each coupling port 12 is set into a state of communicating with an interior of the fuel injection pipe 13 by punching after the diffusion bonding, both longitudinal end portions of the fuel injection pipe 13 are bent by bending after the diffusion bonding and coupled to a common rail 4, and fuel can be supplied to each injector 2 from the common rail 4 by two systems.SELECTED DRAWING: Figure 1 |
