Gas turbine engine fan blade assembly
US5443366A · kind A · utility
13Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1993 |
| Grant date | Aug 22, 1995 |
| Priority date | — |
| Expiry date | Oct 19, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/323
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan blade assembly for a ducted fan gas turbine engine comprises a hub which carries an annular array of radially extending fan blades. Each fan blade has a root portion which locates in a corresponding groove in the hub. Aligned radial slots in the root portion and groove accommodate a U-shaped key which provides axial retention of the root portion in its groove. A flat spring attached to the underside of the root portion maintains the key in position and permits manual deflection of the key to assist blade assembly and disassembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.