Electromagnetic valve device and coil former

US10001223B2 · kind B2 · utility

Assignee

• ETO MAGNETIC GMBH · DE

Inventors

• Peter Vincon · Stockach, DE
• Stefan Bender · Engen, DE

Key dates

• Filing date: May 28, 2014
• Grant date: Jun 19, 2018
• Expiry date: Jul 18, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F7/1607
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An electromagnetic valve device with an armature unit (10) which is designed for carrying out an opening or closing operation of a fluid channel and, as a reaction to stationary coil means (18, 20, 22), which at least partially surround the armature unit, being energized, is driveable so as to be movable along an axial direction (12) relative thereto, wherein the coil means have a coil former (20) which forms a winding section (20) for a winding (22) to be energized, and the coil former forms an axially extending inner casing which is designed for guiding the armature unit and in the lateral surface of which slot- or groove-like channels (54) permitting drainage of an armature movement space are formed, wherein the coil former provides a channel outlet (56) for the channels (54) lying axially opposite an inlet- or respectively outlet section (24) of the fluid channel and on the end face, with which channel outlet blocking and/or deflection means against infiltrating intrusive media are associated.