Propeller blade retention system with tapered roller bearing cartridge assemblies
US7845910B2 · kind B2 · utility
5Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2007 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Jul 26, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/43
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A propeller blade mounted with a preload adjacent a propeller blade root retention which increases the moment capacity of the retention for a given pitch diameter, yet permits pitching of the propeller blade about a blade axis in response to a propeller pitch change actuation system. The propeller blade retention assembly includes a tapered roller bearing set having a multiple of tapered roller bearing cartridge assemblies. Each tapered roller bearing cartridge assembly includes a retention cartridge and at least one tapered roller bearing element to facilitate installation and retention during assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.