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1. (WO2017055208) ELECTROMAGNETIC ACTUATING DRIVE FOR CARRYING OUT A LINEAR MOVEMENT

Pub. No.:    WO/2017/055208    International Application No.:    PCT/EP2016/072824
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Tue Sep 27 01:59:59 CEST 2016
IPC: F16K 37/00
F16K 31/06
H01F 7/08
H01F 7/16
Applicants: VOITH PATENT GMBH
Inventors: GOLL, Armin
LEHMANN, Stefan
LINDÖRFER, Steffen
Title: ELECTROMAGNETIC ACTUATING DRIVE FOR CARRYING OUT A LINEAR MOVEMENT
Abstract:
The invention relates to an electromagnetic drive (1) for carrying out a linear movement, comprising an electromagnet (2) with a coil (3), a core (4), and an armature (6) which can be linearly moved along an axis of symmetry (5) of the core (4), wherein an air gap (7) is formed between the core (4) and the armature (6). The aim of the invention is an electromagnetic drive which can be used in a simple, compact, cost-efficient, and flexible manner with high-pressure systems while simultaneously allowing an exact positioning of the piston at any position with an optimized extension speed. This is achieved in that the air gap (7) has a base (8), two limbs (9, 10) which run symmetrically relative to the axis of symmetry (5), and a substantially truncated cone-shaped cross-section in the longitudinal section, and the limbs (9, 10) are arranged relative to the axis of symmetry (5) of the core (4) so as to form an angle α.