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Title: Dual magnetic phase material rings for AC electric machines

Patent ·
OSTI ID:1735172
; ; ;

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.

Research Organization:
General Electric Co., Schenectady, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0005573
Assignee:
General Electric Company (Schenectady, NY)
Patent Number(s):
10,749,385
Application Number:
15/598,408
OSTI ID:
1735172
Resource Relation:
Patent File Date: 05/18/2017
Country of Publication:
United States
Language:
English

References (16)

Composite Torque Rotating Electric Machine patent-application June 2015
Rotatable assembly for dynamoelectric machines having means for reducing release of magnet material particles therefrom patent February 1988
Rotor of Electric Motor Having Structure for Attaching Magnet Securely to Outer Circumferential Surface of Rotor Core and Manufacturing Method Thereof patent-application August 2013
Electric machine patent May 2014
Synchronous reluctance machine patent January 2010
High speed internal permanent magnet machine and method of manufacturing the same patent September 2011
Dual magnetic phase rotor laminations for induction machines patent-application September 2014
Reluctance type rotating machine with permanent magnets patent August 2001
Transverse and/or commutated flux systems having segmented stator laminations patent September 2014
High speed induction motor rotor and method of fabrication patent March 2003
System And Method For Heating Ferrite Magnet Motors For Low Temperatures patent-application April 2015
Induction Machine with Dual Phase Magnetic Material for Sensorless Control patent-application October 2015
System and Method for Supporting Laminations of Synchronous Reluctance Motors patent-application October 2016
Electric Machine Stator Lamination with Dual Phase Magnetic Material patent-application March 2016
Rotor for an Electric Machine and Production Method Thereof patent-application January 2009
Fabrication and Experimental Analysis of an Axially Laminated Flux-Switching Permanent-Magnet Machine journal February 2017

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