Patent ID: 8016214

Claim:
A fuel injection valve comprising: a convex portion formed on an outer end surface of a nozzle body; a stepped recess formed on said convex portion, which stepped recess has plural step-recess parts; and an orifice forming a fuel nozzle hole which is disposed so that an outlet of said orifice is located at a bottom of said stepped recess; wherein, said orifice is inclined relative to an axis of said nozzle body; said stepped recess comprises a first step-recess part and a second step-recess part; said first step-recess part and said second step-recess part are adjacent each other in a direction of an axis of said orifice, and are disposed such that a bottom of said first step-recess part forms a downstream face in a fuel traveling direction in said nozzle body, a bottom of said second step-recess part forms an upstream face in the fuel traveling direction, an opening of said first step-recess is formed on a convex surface of said convex portion, and an opening of said second step-recess part is formed on the bottom of said second step-recess part; the bottoms of said first and second step-recess parts are respectively formed by surfaces that are substantially normal to the axis of said orifice; said orifice is formed so that the outlet of said orifice opens the bottom of said second step-recess part; and height of said first step-recess part is less than that of said second step-recess part.