Patent ID: 6344783
Filing Date: 2002-02-05
Classification: H01F

Abstract:
An electromagnet for actuation of valves, comprising:a sheath-like magnet housing being an extrusion-molded part forming one integrated piece and having a bottom part; a pole core encompassed by said housing on an actuation side of the electromagnet, said bottom part of said housing being opposite the actuation side; a magnet armature movably mounted in said housing; an actuation member connected to and moved by said magnet armature; a sealed connection between said magnet housing and said pole core on the actuation side including a first annular groove extending into a periphery of said pole core, a sealing element fitted in said first annular groove and a second annular groove in said magnet housing, said second annular groove forming contact surfaces on said magnet housing tightly engaging on interior walls of said first annular groove and forming an encompassing sealing surface engaging said sealing element; and a pole tube on said bottom part aligned with and extending inwardly toward a reverse side of said pole core.