High stiffness hub assemblies for rotor systems
US10392098B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2019 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Feb 28, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/4736
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A high stiffness hub assembly for a rotor system operable to rotate with a mast of a rotorcraft. The hub assembly includes a yoke and a constant velocity joint assembly. The yoke has a plurality of blade arms each configured to hold a rotor blade. The constant velocity joint assembly provides a torque path from the mast to the yoke that includes a trunnion assembly, a plurality of drive links and a plurality of pillow blocks. The trunnion assembly is coupled to the mast and has a plurality of outwardly extending trunnions. Each drive link has a leading bearing coupled to one of the trunnions and a trailing bearing coupled to one of the pillow blocks. Each pillow block is independently mounted between an upper surface of the yoke and a hub plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.