Rotary wing aircraft with improved propulsion system
US11858619B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2020 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | May 26, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2220/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An aircraft (100) with a rotary wing (40) is equipped with a propulsion system (10). The aircraft (100) includes a rotating mast (50) that rotates the rotor wing (40). The propulsion system (10) includes a pole (20) mechanically connected to the rotating mast (50) of the aircraft (100), where at least one end of the pole (20) is equipped with a motor (30) configured to rotate the pole (20) around the axis of the rotating mast (50) in such a way that the rotation of the pole (20) can be used to rotate the rotating wing (40). At each end of the pole (20) is placed a motor group (30), where each motor group (30) includes a pair of counter-rotating propellers (32,32), said pair of counter-rotating propellers (32,32′) being arranged in such a way as to generate a rotational torque to rotate the pole (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.