Fuel injection valve
DRIVE
April 9, 2003
The fuel injection valve, for direct fuel injection at an internal combustion motor, has an armature (20) working together with a magnetic coil. The valve needle (3) is operated by the armature through a sleeve (21) to open and close the flow by the needle closure at the valve seat. A spring is between the sleeve and the armature. An armature limit stop ring (15) is at the outflow side. At least one (31) recess reduces the effective limit stop surfaces of the end side (32) of the sleeve and the end side (33) of the limit stop ring. The recesses are at the end side of the limit ring towards the armature and/or a counter surface of the armature and/or at the end side of the sleeve towards the armature and/or a counter surface (39) of the armature.
Discussion in the ATmosphere