Rotor assemblies having automatic blade folding systems
US7798442B2 · kind B2 · utility
2Cited by
15References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2006 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Mar 17, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/50
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotor assembly having a rotor hub, a plurality of yokes, and a plurality of swing arms is provided. The yoke depending from the rotor hub. Each swing arm is movably positioned on the rotor hub for rotation between an unlocked position and a locked position. The yokes are freely movable about a pitch axis and a lead/lag axis when the swing arms are in the unlocked position and the yokes are locked in a predetermined pitch position and a predetermined lead/lag position when the swing arms are in the locked position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.