Patent ID: 6056263
Filing Date: 2000-05-02
Classification: F02M,F16K,Y10T

Abstract:
A fuel injection valve for internal combustion engines, comprising a magnet coil (10), a core (12), an armature (11) a movable valve needle connected with the armature, a valve seat body that is connected to a tubular seat carrier, said valve seat body has a valve seat face that cooperates with the valve needle, a longitudinal opening in the seat carrier that extends concentric to a valve longitudinal axis, into which, the valve needle and the armature protrude, at least one constriction (30, 30') is provided on a circumference of the seat carrier (1) at a section of the seat carrier (1) between the armature (11) and the valve seat body (18) and said constriction is constituted by means of a plastic deformation and extends radially toward the longitudinal opening (3) for changing a stroke of the movable valve needle.