Patent ID: 9151260
Filing Date: 2015-10-06
Classification: F02M

Abstract:
1. A fuel injection valve that injects fuel, comprising: a fuel passage that is formed in an interior of the fuel injection valve and allows the fuel to flow therethrough; and an injection-hole forming member that is a member that separates an injection space into which the fuel is injected, from the fuel passage, and is formed with at least one injection hole for ejecting the fuel from the fuel passage toward the injection space, the fuel injection valve being characterized in that: the injection-hole forming member, as viewed from an outlet side of the injection hole, is formed with an injection-hole outlet-side groove connected to the injection hole in a region thereof opposed to a main flow direction of the fuel directed toward the injection hole along a wall surface of the injection-hole forming member inside the fuel injection valve, the injection-hole outlet-side groove is formed so as to extend in a direction away from the injection hole; the injection-hole forming member, as viewed from an inlet side of the injection hole, is formed with an injection-hole inlet-side groove at a position close to the injection hole, in a region thereof opposed to the main flow direction of the fuel, and a fuel bypass that is a passage communicating with the injection-hole inlet-side groove, and extends through the injection-hole forming member without intersecting the injection hole, is formed in the injection-hole forming member.