Helicopter anti-torque rotor
US10207800B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 2015 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Feb 1, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/59
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An anti-torque rotor of a helicopter, having: a supporting body; a drive shaft which rotates about a first axis with respect to the supporting body; a hub connected operatively to drive shaft and angularly fixed with respect to first axis; at least one blade which is connected operatively to hub, is angularly fixed with respect to first axis, and is angularly movable with respect to a second axis to adjust the pitch angle of blade; and an actuator which can be operated to rotate blade about second axis to adjust the pitch angle of blade; actuator has an electric motor which generates torque along the first axis; and a mechanical stage interposed between the electric motor and blade, and designed to convert the torque into rotation of blade about the respective second axes; electric motor is fixed to supporting body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.