Rotor drive systems for rotorcraft
US9828089B2 · kind B2 · utility
6Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2016 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Aug 17, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotor drive system includes a mast defining a rotation axis, an electric motor with a stator portion fixed to the stationary mast, a rotor portion rotatably relative to the stator portion, and a clutch disposed along the rotation axis and connected to the rotor portion of the electric motor. A rotor assembly is rotatable about the rotation axis and operably connected to clutch such that, when rotational speed of the rotor assembly exceeds rotational speed of the rotor portion of the electric motor, the clutch disengages the rotor assembly from the electric motor rotor portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.