Patent ID: 8596562

Claim:
A fuel injector, having a longitudinal valve axis, for a fuel injection system of an internal combustion engine, comprising: a fixed valve seat; a valve seat member; and an excitable actuator having a movable actuating part, which has a valve-closure member that acts together with the fixed valve seat, the valve seat being shaped on the valve-seat member; wherein at least one metallic component of the fuel injector has a serrated structure on its outer circumference for providing a solid connection to a corresponding component made of plastic, wherein the excitable actuator includes an electromagnetic circuit having a magnetic coil, a core and an armature, the core being provided with at least one serrated structure, a solid connection being able to be produced to at least one of a connection piece and a coil shell, wherein a metallic intermediate part for closing the magnetic circuit is provided near the magnetic coil, the intermediate part being provided with at least one serrated structure for producing a solid connection to at least one of the coil shell and a valve-seat support.