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Title: Axial gap rotating electrical machine

Direct drive rotating electrical machines with axial air gaps are disclosed. In these machines, a rotor ring and stator ring define an axial air gap between them. Sets of gap-maintaining rolling supports bear between the rotor ring and the stator ring at their peripheries to maintain the axial air gap. Also disclosed are wind turbines using these generators, and structures and methods for mounting direct drive rotating electrical generators to the hubs of wind turbines. In particular, the rotor ring of the generator may be carried directly by the hub of a wind turbine to rotate relative to a shaft without being mounted directly to the shaft.
Publication Date:
OSTI Identifier:
1238805
Report Number(s):
9,270,150
13/743,187
DOE Contract Number:
EE0005489
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Jan 16
Research Org:
Clear Path Energy, LLC, Wilmington, DE (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 17 WIND ENERGY