Main rotor blade using integral metallic center block strap assembly
US11753156B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2020 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Jan 1, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotor blade assembly of an aircraft having a rotor hub including a structural member having an inboard end and an outboard end, the structural member being connectable with the rotor hub. A spar surrounds the structural member and extends at least partially along a rotor blade axis. A pitch bearing assembly supports the spar relative to the structural member. The pitch bearing assembly includes an inboard pitch bearing mounted to the inboard end of the structural member and an outboard pitch bearing mounted to the outboard end of the structural member. The rotor blade assembly additionally includes a centrifugal assembly including a centrifugal bearing disposed between the inboard pitch bearing and the outboard pitch bearing relative to the rotor blade axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.