Coaxial rotor systems for VTOL aircraft
US11396370B2 · kind B2 · utility
1Cited by
0References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2020 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Mar 25, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A coaxial rotor system for a rotorcraft includes a mast, a top rotor assembly and a bottom rotor assembly. The top rotor assembly is coupled to the distal end of the mast. The bottom rotor assembly includes a motor configured to provide rotational energy to the mast, thereby rotating the top rotor assembly. The bottom rotor assembly experiences a torque reaction force responsive to the motor rotating the mast such that the top and bottom rotor assemblies counter rotate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.