Rotor bearing for an electrical machine

US9793777B2 · kind B2 · utility

Assignee

• IMO HOLDING GMBH · DE

Inventors

• Georg Hofmann · Lauffen am Neckar, DE
• Stefan Sadel · Buttenheim, DE
• Johannes Dennerlein · Ebermannstadt, DE
• Erich Russ · Gremsdorf, DE

Key dates

• Filing date: Jan 30, 2012
• Grant date: Oct 17, 2017
• Expiry date: Jan 30, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/72
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A disk armature generator for generating electrical energy from rotational energy of a wind power installation and comprising at least two stator components mutually offset axially along a generally horizontal rotation axis of the disk armature, and comprising, mounted therebetween so as to rotate about the rotation axis, at least one ring- or disk-shaped rotor component of the disk armature, and comprising an input-side connection for a gearbox wherein the sun gear thereof, which extends coaxially with the rotation axis of the disk armature, is coupled to at least one ring- or disk-shaped rotor component of the disk armature, wherein a rolling bearing associated with a ring- or disk-shaped rotor component of the disk armature is configured as a selected one of an angular contact ball bearing and angular contact ball bearings, having a contact angle of between 40° and 50° relative to the rotation axis, comprising a double-row angular contact ball bearing in an O arrangement.