Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1998-02-03
2000-08-29
LaBalle, Clayton
Electrical generator or motor structure
Dynamoelectric
Rotary
310 74, 310156, H02K 709, H02K 702, H02K 2112
Patent
active
061113328
ABSTRACT:
An electric machine includes a cylindrical rotor made up of an array of permanent magnets that provide a N-pole magnetic field of even order (where N=4, 6, 8, etc.). This array of permanent magnets has bars of identical permanent magnets made of dipole elements where the bars are assembled in a circle. A stator inserted down the axis of the dipole field is made of two sets of windings that are electrically orthogonal to each other, where one set of windings provides stabilization of the stator and the other set of windings couples to the array of permanent magnets and acts as the windings of a generator/motor. The rotor and the stator are horizontally disposed, and the rotor is on the outside of said stator. The electric machine may also include two rings of ferromagnetic material. One of these rings would be located at each end of the rotor. Two levitator pole assemblies are attached to a support member that is external to the electric machine. These levitator pole assemblies interact attractively with the rings of ferromagnetic material to produce a levitating force upon the rotor.
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LaBalle Clayton
The Regents of the University of California
Thompson Alan H.
Wooldridge John P.
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