Rigid rotor head with tension torsion (TT) strap retention
US10696386B2 · kind B2 · utility
2Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2016 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Nov 22, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C11/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A box frame hub arm structure is provided and includes a body having an outboard surface, which is disposable to abut with an inboard surface of an outboard arm of an aircraft rotor head, and lead/lag sides. The body is formed to define a first cavity, an aperture communicative with the first cavity through the outboard surface and second and third cavities. The second and third cavities extend outwardly in opposite lead/lag directions from the first cavity to the lead/lag sides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.