Device for controlling the pitch of the blades of a convertible aircraft rotor
US6824096B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Mar 20, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C29/0033
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pitch control device for a blade of a tilting rotor of a convertible aircraft. The pitch control device is external to a rotor hub which is driven in rotation by a mast and connected to the latter by a mechanism for tilting the hub as a whole, each blade is connected to the hub by a coupling for retaining and hingeing the blade in pitch about its pitch change axis. The device includes a pitch change lever, integral in rotation with its blade root about its axis, a pitch control rod, a bellcrank pivoting about a pin on a drive plate integral in rotation with the mast, and to which the pitch control rod is hinged, the bellcrank being also hinged to a link rod connected to the pitch change lever.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.