Axial springs for rotor hub assembly
US10308356B2 · kind B2 · utility
3Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2016 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Jul 8, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/82
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotor hub assembly for a rotorcraft includes a yoke forming a bearing bore. The yoke has a teetering axis extending through the bearing bore. The rotor hub assembly includes a flapping bearing disposed in the bearing bore. The flapping bearing is operable to regulate teetering of the yoke about the teetering axis. The rotor hub assembly includes an axial spring abutting the flapping, thereby reducing movement of the flapping bearing along the teetering axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.