Patent ID: 11870319
Assignee: TAU MOTORS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A method comprising:
providing an electric motor that comprises:
an output shaft defining an axis of rotation,
a first nutating rotor rotationally coupled to the output shaft, and a first stator mechanically coupled to the rotor by a first nutating traction interface, wherein the first rotor and a surface of the first stator bound a first radial dynamic air gap, and
a second nutating rotor rotationally coupled to the output shaft, and a second stator mechanically coupled to the rotor by a first nutating traction interface, wherein the second rotor and a surface of the second stator bound a second radial dynamic air gap,
wherein the first nutating traction interface and the first radial dynamic air gap are arranged such that, in a first plane containing the axis of rotation of the output shaft, the first nutating traction interface is angled with respect to the surface of the first stator bounding the first radial dynamic air gap, and wherein the second nutating traction interface and the second radial dynamic air gap are arranged such that, in a second plane containing the axis of rotation of the output shaft, the second nutating traction interface is angled with respect to the surface of the second stator bounding the second radial dynamic air gap; and

operating the electric motor by
activating the first stator to nutate the first nutating rotor with respect to the first stator to produce a first magnetic field across the first radial dynamic air gap to thereby generate a first force between the first nutating rotor and the first stator to turn the output shaft, a first tilt axis of the first rotor progressing to define a first conical surface with respect to the axis of rotation of the output shaft, and
activating the second stator to nutate the second nutating rotor with respect to the second stator to produce a second magnetic field across the second radial dynamic air gap to thereby generate a second force between the second nutating rotor and the second stator to turn the output shaft, a second tilt axis of the second rotor progressing to define a second conical surface with respect to the axis of rotation of the output shaft.