Low drag high capacity pitch bearing for rigid rotor aircraft
US11066158B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Sep 25, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/43
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pitch bearing assembly for a rotor blade and a hub assembly of a rotary wing aircraft includes a single inner race. An inboard outer race surrounds an inboard portion of the inner race and includes a first inboard blade connector and a second inboard blade connector that are configured to connect to the rotor blade. An inboard bearing is disposed between the inboard portion of the single inner race and the inboard outer race and includes an elastomer. An outboard outer race surrounds an outboard portion of the single inner race and includes a first outboard blade connector and a second outboard blade connector that are configured to connect to the rotor blade. An outboard bearing is disposed between the outboard portion of the inner race and the outboard outer race and includes an elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.