Patent ID: 11923733
Assignee: QUANTENTECH LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus comprising:
a stator with an inner surface and an outer surface, wherein:
a plurality of first slots is distributed along the inner surface and is separated from each other by a plurality of first teeth;
a plurality of second slots is distributed along the outer surface and is separated from each other by a plurality of second teeth; and
a plurality of windings is located between the inner surface and the outer surface, each of the plurality of windings comprising a plurality of first conductors located in a first slot and a plurality of second conductors located in a second slot adjacent to the first slot, wherein one of the plurality of windings starts with a partial-phase slot in a direction;

a plurality of rotors magnetically coupled to the stator, wherein a first rotor of the plurality of rotors faces the inner surface of the stator and a second rotor of the plurality of rotors faces the outer surface of the stator; and
a first airgap between the inner surface of the stator and the first rotor, and a second airgap between the outer surface of the stator and the second rotor, wherein the plurality of first conductors, the first airgap, and the first rotor form a first submotor, and the plurality of second conductors, the second airgap, and the second rotor form a second submotor, and wherein the first submotor and the second submotor are so configured that the first rotor and the second rotor produce mechanical torques in a same direction when currents flow in the plurality of windings in an operation mode.