VALVE ASSEMBLY WITH A GUIDE ELEMENT
DRIVE
August 31, 2016
A valve assembly (1) for a fluid injection valve is specified. It comprises a hollow valve body (10) which hydraulically connects a fluid inlet (12) to an injection orifice (14) and has a longitudinal axis (L) . A valve needle (20) received in the valve body (10) in axially displaceable fashion for sealing the injection orifice (14) in a closing position. It further comprises an electromagnetic actuator assembly (30) for displacing the valve needle (20) away from the closing position, the actuator assembly (30) comprising a movable armature (32) and a pole piece (34) which is positionally fix relative to the valve body (10). A guide element (40) is positionally fix relative to the pole piece (34), has a first guide surface (401) for axially guiding the armature (32) and a second guide surface (403) for axially guiding the valve needle (20).
Discussion in the ATmosphere