Patent · US Active

Electromagnetic friction engaged clutch, method for the operation thereof, and use thereof in a drive train for automatically actuating a vehicle door or a vehicle flap

US7677376B2 · kind B2 · utility

7Cited by

0References

4Claims

0Family size

Assignee

Valeo Sicherheitssysteme GmbH · DE

Inventors

Stephan Schachtl · Birkenfeld, DE
Andreas Winter · Feldkirch, AT
Thomas Humez · Dachau, DE
Andreas Berger · Therwil, CH

Key dates

Filing date	Aug 5, 2005
Grant date	Mar 16, 2010
Priority date	—
Expiry date	Nov 5, 2026

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE05Y2900/50
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An electromagnetic frictionally engaged clutch provided with a rotor part including a friction lining. An electrical coil and a first permanent magnet are arranged on the rotor part. The clutch also includes an armature disk which is connected to a second shaft and can be displaced in a rotationally fixed manner, but axially from a coupled end position to an uncoupled end position. The coil of the clutch is enabled to be current-free both in the coupled state and in the uncoupled state. To this end, a second permanent magnet is provided for exerting an axial force opposing the magnetic force of the first permanent magnet on the armature disk.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.