Patent ID: 10876508

Abstract:
Provided is a fuel injection valve which can be easily processed and can realize sufficient atomization while suppressing spreading of spray. In the fuel injection valve according to the present invention, when a nozzle plate 6 and a first direction 15a-1 in which fuel is sprayed are projected onto a virtual plane perpendicular to a central axis line of the fuel injection valve along an opening and closing valve direction of a valve body and a first orthogonal coordinate system having an X1 passing through a center O1 of the nozzle plate 6 and along the first direction 15a-1 and a Y1 axis passing through the center O1 of the nozzle plate 6 and perpendicular to the X1 axis is virtualized on the virtual plane, an introduction passage 11a-1 is inclined so that a straight line segment 14a-1 connecting between a central point 40a-1 of an upstream side end portion and a center Oa-1 of an inlet opening surface of a fuel injection hole 13a-1 is positioned on the Y1 axis side with respect to a straight line 30a-1 passing through the central point 40a-1 and the center O1 of the nozzle plate 6.