Patent ID: 8154166

Claim:
A three-phase, four pole electric motor, comprising: a stator with a plurality of slots; a first winding layer contained within at least a first subset of said plurality of slots, wherein said first winding layer is comprised of a first set of six coil groups, wherein said first set of six coil groups is comprised of a first and a second first phase coil group, a first and a second second phase coil group, and a first and a second third phase coil group; a second winding layer contained within at least a second subset of said plurality of slots, wherein said second winding layer is comprised of a second set of six coil groups, wherein said second set of six coil groups is comprised of a third and a fourth first phase coil group, a third and a fourth second phase coil group, and a third and a fourth third phase coil group; and wherein said first and second first phase coil groups comprise a first pole pair of said first phase, wherein said third and fourth first phase coil groups comprise a second pole pair of said first phase, wherein said first and second second phase coil groups comprise a first pole pair of said second phase, wherein said third and fourth second phase coil groups comprise a second pole pair of said second phase, wherein said first and second third phase coil groups comprise a first pole pair of said third phase, and wherein said third and fourth third phase coil groups comprise a second pole pair of said third phase.