Patent ID: 8657213

Claim:
A fuel injection valve having a valve body for opening and closing a valve seat, and receiving an actuating signal from a control device to actuate the valve body, thereby injecting fuel from a plurality of injection holes provided in an injection hole plate mounted on the downstream side of the valve seat after passing through between the valve body and valve seat surface, wherein a plate convex is formed on the upstream side of the injection hole plate and a plate concave is formed on the downstream side of the injection hole plate so as to form a pair together, at least one set of the pair of the plate convex and the plate concave is formed, and the injection holes are arranged so that a radial centerline which connects the centerline of the plate convex from the axial center of the fuel injection valve does not overlap the center of the injection hole on an upstream flat surface of the injection hole plate, and wherein the plate convex is arranged on the upstream flat surface of the injection hole plate so that a portion of the injection hole is opened on both the upstream flat surface of the injection hole plate, and the plate convex top surface.