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U.S. Department of Energy
Office of Scientific and Technical Information

Passive magnetic bearing for a motor-generator

Patent ·
OSTI ID:908336

Conductive lap windings are interleaved with conventional loops in the stator of a motor-generator. The rotor provides magnetic induction lines that, when rotated, cut across the lap windings and the loops. When the rotor is laterally displaced from its equilibrium axis of rotation, its magnetic lines of induction induce a current in the interleaved lap windings. The induced current interacts with the magnetic lines of induction of the rotor in accordance with Lenz's law to generate a radial force that returns the rotor to its equilibrium axis of rotation.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
W-7405-ENG-48
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Number(s):
7,078,838
Application Number:
09/946,298
OSTI ID:
908336
Country of Publication:
United States
Language:
English

References (1)

Application of permanent magnets in accelerators and electron storage rings (invited) journal April 1985

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