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Stators with reconfigurable coil paths

United States Patent

August 12, 2014
View the Complete Patent at the US Patent & Trademark Office
A device includes a rotor and a stator with coils arranged to form a phase element. The phase element includes a first coil group including a first coil and a second coil and a second coil group including a third coil and a fourth coil, where the rotor is positioned between the first coil group and the second coil group. The device also includes one or more switches that enable reconfiguration of the phase element by switching an electrical configuration of the coils. In a first mode, the coils are arranged with the first coil in a first coil path and the second coil in a second coil path that is coupled in parallel with the first coil path. The coils are arranged such that a voltage generated across the first coil path is substantially equal to a voltage generated across the second coil path.
Hull; John R. (Sammamish, WA), Gonder; John F. (Mountlake Terrace, WA)
The Boeing Company (Chicago, IL)
13/ 104,456
May 10, 2011
STATEMENT OF GOVERNMENT RIGHTS This invention was made with government support under contract number DE-AR0000153 awarded by the U.S. Dept. of Energy, ARPA-E. The government has certain rights in the invention.