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1. (WO2014206537) ELECTROMAGNETIC ACTUATING APPARATUS

Pub. No.:    WO/2014/206537    International Application No.:    PCT/EP2014/001618
Publication Date: Thu Jan 01 00:59:59 CET 2015 International Filing Date: Sun Jun 15 01:59:59 CEST 2014
IPC: H01F 7/16
H01F 7/13
Applicants: HYDAC ELECTRONIC GMBH
Inventors: BERESCHKA, Andreas
Title: ELECTROMAGNETIC ACTUATING APPARATUS
Abstract:
An electromagnetic actuating apparatus, in particular a proportional magnet or switching magnet, comprising a magnet armature (4), which is guided in axially movable fashion in a pole tube (2), which is at least partially surrounded by a coil winding and which is adjoined by a pole core (10) via a separating region (20) forming a magnetic decoupling, wherein, on energization of the coil winding (52), a magnetic force acts on the armature (4), which magnetic force attempts to move said armature (4) in the direction of the pole core (10) within a travel area, characterized in that at least one insert (28) consisting of ferromagnetic material with a preset axial thickness can be introduced between the armature (4) and the pole core (10) in order to shorten, as desired, the axial length of the travel area.