Patent ID: 9541048
Date: 2017-01-10
CPC Classifications: F02M

Claim:
1. A fuel injection valve, comprising: a slidably installed valve element; a nozzle body having a valve seat surface formed thereon where the valve element is seated when the valve is closed and an opening formed on a downstream side of a fuel flow; a path for swirling communicated with the opening of the nozzle body and formed, relative to the nozzle body, on a downstream side of the fuel flow; a swirling chamber formed, relative to the path for swirling, on a downstream side of the fuel flow, the swirling chamber having a cylindrical inner surface and swirling fuel therein thereby providing the fuel with a swirling force; and a fuel injection orifice cylindrically formed at a bottom of the swirling chamber to outwardly spray fuel, wherein the swirling chamber is provided inclinedly toward the fuel injection orifice, so that a longitudinal axis of the path for swirling intersects a line that passes through a center of the opening and a center of the fuel injection orifice, wherein the path for swirling has walls that are straight, the straight walls of the path for swirling defining a projection, the fuel injection orifice has walls that are straight, the straight walls of the fuel injection orifice defining another projection; the entire another projection of the fuel injection orifice does not intersect the projection defined by the path for swirling along both a width direction of the fuel injection valve and a longitudinal direction of the fuel injection valve.