Hollow fan blade dovetail
US5443367A · kind A · utility
53Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1994 |
| Grant date | Aug 22, 1995 |
| Priority date | — |
| Expiry date | Feb 22, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine fan blade having an airfoil portion and a dovetail root portion is enhanced by having spaced apart supporting ribs extend into the dovetail root portion. The supporting ribs define a plurality of hollow cavities extending into the dovetail root portion of the fan blade. The extended cavities reduce the weight of each blade and also improve the integrity of each blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.