Skip to Content
Find More Like This
Return to Search

APPARATUS AND METHOD FOR MAGNETICALLY UNLOADING A ROTOR BEARING

United States Patent Application

20140055905
A1
View the Complete Application at the US Patent & Trademark Office
An apparatus and method for unloading a rotor bearing is described. The apparatus includes an electromagnet for levitating the rotor. In one embodiment, a sensor of the magnetic field near the electromagnet is used to control the current to levitate the rotor. In another embodiment, a method is provided that includes rotating the rotor, increasing the current to levitate the rotor and decrease the gap between electromagnet and rotor, and then reducing the current to levitate the rotor with a minimal amount of electric power to the electromagnet.
Sanders, Seth Robert (Berkeley, CA)
Amber Kinetics, Inc. (Fremont CA)
13/ 973,937
August 22, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of DE-FOA-0000036 awarded by the U.S. Department of Energy.