Fuel injection valve for fuel injection units on internal combustion engines has a valve needle, a sealing valve seat and an armature in a recess for a magnetic circuit's external pole

摘要

A valve needle (3) combines with a valve seat surface into a sealing seat. Linked to the valve needle and impinged by a readjusting spring in a closing direction, an armature (20) fits in a recess (40) for a magnetic circuit's external pole (9) and has a triangular cross-section shoulder (38) forming an extensive part on the armature.