Electromagnetically actuated inlet valve and high-pressure pump with inlet valve

摘要

An electromagnetically actuated inlet valve (24) for a high-pressure pump, in particular a fuel injection system, is proposed. The inlet valve (24) has a valve member (34) which is movable between an open position and a closed position. An electromagnetic actuator (60) is provided, by means of which the valve member (34) is at least indirectly movable, wherein the electromagnetic actuator (60) has a magnet armature (68) acting at least indirectly on the valve member (34), a magnet armature (68). surrounding magnetic coil (64) and a magnetic core (66), on which the magnet armature (68) at least indirectly comes to rest when current flows through the magnetic coil (64). The magnet armature (68) is displaceably guided in a carrier element (78) in the direction of its longitudinal axis (69), the carrier element (78) and the magnet core (66) being connected to one another. The carrier element (78) and the magnetic core (66) are connected to one another via a sleeve-shaped connecting element (92) which is pushed onto the carrier element (78) and / or the magnetic core (66) at least in one end region and by means of a welded connection (94) is attached. The carrier element (78) and / or the magnetic core (66) has in each case an annular groove (96) in its outer casing on both sides of the welded connection (94) in the regions adjacent to the respective welded connection (94) in the direction of the longitudinal axis (69) Welding melt (95) and / or slag arising during the production of the welded joint (94) collects.