INJECTOR

PROBLEM TO BE SOLVED: To enhance pressure-proof strength by relieving concentration of stress in a connecting crossing structure of a connector hole 34, an axial directional flow passage 35 and a communicating hole 36 in a body 2, in an injector for receiving fuel via an inlet connector 4.SOLUTION: The hole axis of the communicating hole 36 is arranged in a position of moving the hole axis of a connector hole 34 in parallel to the tip side along the axial direction of the body 2. Thus, in a high pressure flow passage 16 of bending at 90° of continuing like the connector hole 34 → the communicating hole 36 → the axial directional flow passage 35, a projection quantity of a projection part 49 of a bending inside area is reduced, and the stress can be dispersed to a projection quantity reducing layer 50 and a vicinal boundary layer 51. As a result of this, in the injector for receiving the fuel via the inlet connector 4, the pressure-proof strength can be enhanced by relieving the concentration of stress in the connecting crossing structure of the connector hole 34, the axial directional flow passage 35 and the communicating hole 36 in the body 2.