Inboard bearing assemblies having load transfer shoe bolts
US10479497B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2018 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Aug 9, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/43
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A proprotor system for a tiltrotor aircraft having helicopter and airplane flight modes includes a yoke having a plurality of blade arms each having an inboard pocket with an outboard surface. Each of a plurality of bearing assemblies is disposed at least partially within one of the inboard pockets with each bearing assembly including a shear bearing and a centrifugal force bearing having an integral shoe with an outboard surface. Each of a plurality of inboard beams is disposed at least partially between one of the centrifugal force bearings and one of the shear bearings. Each of a plurality of proprotor blades is coupled to one of the inboard beams. The integral shoes are coupled to the yoke such that there is a spaced apart relationship between the outboard surfaces of the integral shoes and the outboard surfaces of the pockets to prevent centrifugal force load transfer therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.