Patent ID: 7388300
Filing Date: 2008-06-17
Classification: F01D,F02C,F02N,F05D,H02K

Abstract:
1. A starter-generator, comprising: a rotor configured to rotate and having a single main field winding wound thereon that, upon electrical excitation thereof, generates an electromagnetic flux; and a stator disposed at least partially around at least a portion of the rotor and having at least a first stator winding set and second stator winding set independently wound thereon, the first stator winding set configured to implement a first number of stator poles and, upon receipt of the electromagnetic flux, to have AC currents induced therein at a first frequency, the second stator winding set configured to implement a second number of stator poles and, upon receipt of the electromagnetic flux, to have AC currents induced therein at a second frequency, wherein the first and second number of stator poles are unequal and the first and second frequencies are unequal.