Patent ID: 6814312
Filing Date: 2004-11-09
Classification: F02M

Abstract:
A fuel injection valve, comprising:an injection hole plate provided at a fluid path outlet formed at a tip end of a valve body, said injection hole plate defining a plurality of injection holes, said valve body further including: a bottom wall portion with a valve seat against which a valve member abuts, and a side wall portion provided upright from a peripheral edge of the bottom wall portion, wherein the side wall portion supports said valve member while said valve member reciprocates, a sleeve fixed to said valve body and abutting said injection hole plate, wherein said injection hole plate: is cup-shaped and has its entire circumference joined to said valve body to cover said fuel path, has a bottom portion to allow said fuel path to communicate with an exterior of said valve body, and has a cylindrical portion angularly provided from a peripheral edge of said bottom portion and press-fitted onto said side wall portion, wherein said sleeve: is a resin sleeve and has a resin annular portion defining an opening opened toward a downstream direction of the fuel injected from said injection hole plate, and a resin cylindrical portion provided upright from a peripheral edge of the resin annular portion and press-fitted onto said side wall portion, wherein one of said sleeve and said injection hole plate has a projection and the other has a cutout groove corresponding to said projection so that said sleeve and said injection hole plate are engaged with each other in a manner such that ends of said projection in a circumferential direction and ends of said cutout groove in said circumferential direction are in contact with each other to counter sleeve rotation in the circumferential direction, and wherein said fuel injection valve injects a fluid from the injection holes, controls an amount of the fluid, and determines an injection direction.