VTOL rotorcraft with annular contra-rotating rotary wings and auxiliary propulsor
US12110103B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 1, 2021 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Oct 16, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/8272
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention is for a VTOL (vertical take-off and landing) rotorcraft with the annular contra-rotating rotary wings and auxiliary propulsor. The rotary wing of the annular contra-rotating rotary wings is driven by a plurality of tangential forces applied at multiple locations of the inner stator hub. The annular contra-rotating rotary wings can be shrouded for the improvement of propulsive efficiency, reduction of noise and protection of the rotary wing. The fuselage is mounted along the center axis of the annular contra-rotating rotary wings to be outside of the thrust slipstream. The auxiliary propulsor includes a quad independent pusher propeller to propel the rotorcraft to reach faster forward speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.