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Title: Dual magnetic phase material rings for AC electric machines

Abstract

An AC electric machine that includes a dual magnetic phase material ring is disclosed. The AC electric machine includes a stator assembly and a rotor assembly positioned within the stator assembly and configured to rotate relative thereto, the rotor assembly comprising a rotor core including a stack of rotor laminations that collectively form the rotor core, the rotor core including a plurality of rotor poles separated by gaps therebetween. The AC electric machine also includes a dual magnetic phase material ring positioned about the stack of rotor laminations, the dual magnetic phase material ring comprising a first ring portion comprising a magnetic portion and a second ring portion comprising a non-magnetic portion.

Inventors:
; ; ;
Issue Date:
Research Org.:
General Electric Co., Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735172
Patent Number(s):
10749385
Application Number:
15/598,408
Assignee:
General Electric Company (Schenectady, NY)
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
DOE Contract Number:  
EE0005573
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/18/2017
Country of Publication:
United States
Language:
English

Citation Formats

Reddy, Patel Bhageerath, Zou, Min, El-Refaie, Ayman Mohamed Fawzi, and Johnson, Francis. Dual magnetic phase material rings for AC electric machines. United States: N. p., 2020. Web.
Reddy, Patel Bhageerath, Zou, Min, El-Refaie, Ayman Mohamed Fawzi, & Johnson, Francis. Dual magnetic phase material rings for AC electric machines. United States.
Reddy, Patel Bhageerath, Zou, Min, El-Refaie, Ayman Mohamed Fawzi, and Johnson, Francis. Tue . "Dual magnetic phase material rings for AC electric machines". United States. https://www.osti.gov/servlets/purl/1735172.
@article{osti_1735172,
title = {Dual magnetic phase material rings for AC electric machines},
author = {Reddy, Patel Bhageerath and Zou, Min and El-Refaie, Ayman Mohamed Fawzi and Johnson, Francis},
abstractNote = {An AC electric machine that includes a dual magnetic phase material ring is disclosed. The AC electric machine includes a stator assembly and a rotor assembly positioned within the stator assembly and configured to rotate relative thereto, the rotor assembly comprising a rotor core including a stack of rotor laminations that collectively form the rotor core, the rotor core including a plurality of rotor poles separated by gaps therebetween. The AC electric machine also includes a dual magnetic phase material ring positioned about the stack of rotor laminations, the dual magnetic phase material ring comprising a first ring portion comprising a magnetic portion and a second ring portion comprising a non-magnetic portion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {8}
}

Works referenced in this record:

High speed induction motor rotor and method of fabrication
patent, March 2003


Synchronous reluctance machine
patent, January 2010


Reluctance type rotating machine with permanent magnets
patent, August 2001


Transverse and/or commutated flux systems having segmented stator laminations
patent, September 2014


Fabrication and Experimental Analysis of an Axially Laminated Flux-Switching Permanent-Magnet Machine
journal, February 2017


High speed internal permanent magnet machine and method of manufacturing the same
patent, September 2011


Electric machine
patent, May 2014