Patent ID: 8888024
Filing Date: 2014-11-18
Classification: F02M

Abstract:
1. A fuel injection valve in which a valve body for opening and closing a valve seat is provided, and by receiving an operation signal from a control device so as to operate the valve body, a fuel passes a gap between the valve body and a valve seat portion and then is injected through a plurality of injection holes provided in an injection hole plate mounted in a valve seat opening portion at the downstream side of the valve seat, wherein the injection hole plate is disposed in such a way that an extended line along the plane of the valve seat portion of the valve seat whose diameter is gradually reduced in the downstream direction and an upstream plane of the injection hole plate intersect each other so that a virtual circle is formed; by recessing part of the upstream side of the injection hole plate at a plurality of positions along the valve seat opening portion, a plurality of ellipsoidal fuel chambers is formed; the fuel chamber whose major axis is slanted with respect to a line that radially extends from the center of the injection hole plate is disposed in a place that ranges from the inside of the virtual circle to the outside of the inner circumference of the valve seat opening portion; and the injection hole solely provided in the fuel chamber is disposed outside the inner circumference of the valve seat opening portion.