Patent ID: 7550892

Claim:
A stator comprising; a generally cylindrically-shaped stator punching having a plurality of circumferentially spaced and axially-extending non-rectangular slots in a surface thereof, said slots extending between an upper and a lower end of said stator punching and said slots comprising an interfacing surface on each side of the slot; a plurality of first and second preformed wound coils disposed in said slots as distributed windings having a coil span greater than 1, said coils further comprising an upper layer disposed in one of said slots adjacent said upper end of said stator punching and a lower layer disposed in said one of said slots adjacent said lower end of said stator punching; a plurality of plugged-in teeth, each of which are disposed centrally in one of said slots adjacent said upper layer and lower layer interposed between said first and second preformed wound coils, said teeth further comprising magnetically saturable extensions disposed proximate said upper end and extending outward to the interfacing surface of said one of said slots in said stator punching, wherein each of the teeth comprises two extensions for limiting a slot leakage flux.