Title:
MAGNET ASSEMBLY FOR AN ACTUATION AND/OR DELIVERY ASSEMBLY, AND METHOD FOR PRODUCING THE MAGNET ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2019/137686
Kind Code:
A1
Abstract:
The invention relates to a magnet assembly (1) for an actuation and/or delivery assembly, in particular a delivery pump for an operating medium/additive in a motor vehicle, comprising an annular magnetic coil (2) and a pole body (3) which at least partly engages into the magnetic coil (2) and on which a compression spring (4) is directly or indirectly supported in order to restore an armature (5) that can carry out a stroke movement. According to the invention, the pole body (3) has a magnetic throttle point (6) in a hollow cylindrical section for guiding the armature (5), wherein the magnetic permeability of the pole body (3) is reduced in the region of the throttle point. The invention additionally relates to a method for producing a magnet assembly (1) according to the invention.
Inventors:
BOEHLAND PETER (DE)
WALETZEK CHRISTOPH (DE)
ENGLERT KARL-OTTO (DE)
WALETZEK CHRISTOPH (DE)
ENGLERT KARL-OTTO (DE)
Application Number:
PCT/EP2018/082566
Publication Date:
July 18, 2019
Filing Date:
November 26, 2018
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
International Classes:
H01F7/08; H01F7/16
Domestic Patent References:
| WO2013192003A1 | 2013-12-27 | |||
| WO2015179486A1 | 2015-11-26 |
Foreign References:
| DE102005039554A1 | 2007-03-01 | |||
| US20170254437A1 | 2017-09-07 | |||
| DE102015226463A1 | 2017-06-22 |
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