US 7,545,065 B1
Spin-stabilized magnetic levitation without vertical axis of rotation
Louis Romero, Albuquerque, N. Mex. (US); Todd Christenson, Albuquerque, N. Mex. (US); and Gene Aaronson, Albuquerque, N. Mex. (US)
Assigned to Sandia Corporation, Albuquerque, N. Mex. (US)
Filed on Sep. 21, 2005, as Appl. No. 11/231,532.
Claims priority of provisional application 60/612593, filed on Sep. 22, 2004.
Int. Cl. H02K 7/09 (2006.01)
U.S. Cl. 310—90.5 24 Claims
OG exemplary drawing
 
1. A method of levitating a rotor that is symmetric about a rotational axis thereof and carries thereon a magnet arrangement, comprising:
rotating the rotor about the rotational axis; and
while the rotor is rotating about the rotational axis, using magnetic force and the rotation of the rotor to stabilize the rotor with respect to perturbations acting on the rotor in a direction parallel to the rotational axis, wherein said stabilization of the rotor is dependent upon the rotation of the rotor.