Device for providing assistance to the pilot of a rotorcraft in the event of engine failure
US7223071B2 · kind B2 · utility
17Cited by
10References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | May 2, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/57
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention provides a device enabling the collective pitch of the blades of the main rotor of a single-engined rotorcraft to be reduced automatically in the event of an engine failure. The device comprises an actuator which increases the collective pitch of the blades above a predefined threshold, and which decreases the collective pitch below the predefined threshold. The actuator is arranged on a bell crank of the mixing unit of the rotorcraft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.