Blade retention scheme using a retention tab
US6837686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Sep 27, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/323
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blade retention system for retaining blade roots in slots of a rotor hub disk, the rotor blade having a radially outward blade tip requiring surface material removal by grinding to acquire a finished ground surface, having a blade root retention tab with an elongated web of thickness less than the gap between the slot and blade root and with at least two deformable protrusions extending radially to a height exceeding said gap, the protrusions adapted to deform under compression radially inwardly on sliding engagement with the blade root in the slot and to exert a reaction force radially outwardly on the blade root of a magnitude sufficient to secure the blade tip during surface removal grinding of the blade tip against radial displacement and against rotational displacement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.