Gregory R Stevenson

US Patent:

20220376597, Nov 24, 2022

Filed:

Aug 5, 2022

Appl. No.:

17/882135

Inventors:

- Redwood City CA, US
Adam Daniel Ambrecht - Kennesaw GA, US
Gregory Gordon Stevenson - San Carlos CA, US

International Classification:

H02K 41/06
H02K 7/116
H02K 9/193

Abstract:

An electric motor has a stator mechanically coupled to the rotor by a nutating traction interface, such that during nutation of the rotor with respect to the stator a tilt axis of the rotor progresses about the axis of rotation of the output shaft. The rotor and a surface of the stator bound a dynamic gap across which a magnetic field is produced by electrical activation of the motor to generate a force between the rotor and the stator. The traction interface and the gap are arranged such that, in a plane containing the axis of rotation of the output shaft, the traction interface is angled with respect to the stator surface bounding the gap. The rotor is connected to the output shaft by a tiltable connection such as a gimbal.

US Patent:

20210384811, Dec 9, 2021

Filed:

May 23, 2019

Appl. No.:

16/963950

Inventors:

- San Francisco CA, US
Adam Daniel Ambrecht - Kennesaw GA, US
Gregory Gordon Stevenson - Austin TX, US

International Classification:

H02K 41/06
H02K 7/116
H02K 9/193

Abstract:

An electric motor has a stator mechanically coupled to the rotor by a nutating traction interface, such that during nutation of the rotor with respect to the stator a tilt axis of the rotor progresses about the axis of rotation of the output shaft. The rotor and a surface of the stator bound a dynamic gap across which a magnetic field is produced by electrical activation of the motor to generate a force between the rotor and the stator. The traction interface and the gap are arranged such that, in a plane containing the axis of rotation of the output shaft, the traction interface is angled with respect to the stator surface bounding the gap. The rotor is connected to the output shaft by a tiltable connection such as a gimbal.