Flexbeam rotor attachment to rotor blade
US9475576B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2015 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | May 19, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/48
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotor blade assembly includes a flex-beam member and a torque tube surrounding the flex-beam member and extending partially along a rotor blade assembly length. A rotor blade surrounds the flex beam member and extends from the torque tube to a blade tip. A connecting assembly secures the rotor blade and the torque tube at the flex-beam member. The connecting assembly includes a first connecting member extending at least partially into the rotor blade assembly through the rotor blade from a first rotor blade side and a second connecting member located at a second rotor blade side. A clamping load between the first connecting member and the second connecting member secures the rotor blade and torque tube to the flex-beam member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.