Patent ID: 6826833
Filing Date: 2004-12-07
Classification: B23P,F02M,Y10T

Abstract:
A method of producing outlet openings in a fuel injection valve having a fuel inlet, an excitable actuating device, a valve closing member movable by the excitable actuating device, a valve seat element having a fixed valve seat with which the valve closing member cooperates for opening and closing the valve, at least one outlet opening as a fuel outlet provided downstream of the valve seat, the method comprising the steps of producing a throughhole in a first method step; creating in a second method step from an election end of the throughhole an outlet region so that it is varied with a parameter selected from the group consisting of a shape, a size, a contour, and a combination thereof, compared to the through hole; recessing the throughole by a process selected from the group consisting of a stamping, an erosion and a laser beam boring; and recessing the outlet region by a non-metal-cutting production process.