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Title: Superconducting electrical machine with double re-entrant ends for minimizing heat leak

Patent ·
OSTI ID:1483292

A superconducting electrical machine includes at least one re-entrant end including at least two segments. The at least two segments are continuous. At least one re-entrant end may be included in a stator of the superconducting electrical machine, the stator being disposed substantially coannular with a longitudinal axis. At least one re-entrant end may also be included in a rotor of the superconducting electrical machine, the rotor being configured to rotate about a longitudinal axis. A first segment is substantially perpendicular to a plane parallel to the longitudinal axis, and a second segment is coannular with the longitudinal axis. Heat distal from rotor windings and/or stator windings encounters a thermal resistance provided by the at least two segments as the heat travels towards the rotor windings and/or stator windings.

Research Organization:
Kato Engineering Inc., North Mankato, MN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0005140
Assignee:
Kato Engineering Inc. (North Mankato, MN)
Patent Number(s):
10,077,955
Application Number:
14/662,064
OSTI ID:
1483292
Resource Relation:
Patent File Date: 2015 Mar 18
Country of Publication:
United States
Language:
English

References (15)

Support method and structure for epoxy impregnated saddle-shaped superconducting windings patent May 1983
In-shaft reverse brayton cycle cryo-cooler patent December 2008
Multilayer radiation shield patent June 2009
Torque transmission assembly for superconducting rotating machines patent December 2009
Low heat leak, high torque power shaft for cryogenic machines patent September 2010
Dual armature motor/generator with flux linkage between dual armatures and a superconducting field coil patent November 2010
Dual armature motor/generator with flux linkage patent June 2011
Dual armature motor/generator with flux linkage patent December 2011
Superconductive Wire, Processes of Manufacturing and Uses Thereof patent-application July 2009
Dual armature motor/generator with flux linkage between dual armatures and a superconducting field coil patent-application October 2010
Dual Armature Motor/Generator With Flux Linkage patent-application February 2011
Dual Armature Motor/Generator With Flux Linkage patent-application June 2011
Superconducting Machines patent-application October 2012
Rotor for an Electric Machine patent-application July 2013
Buffing Aparatus patent-application October 2014

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