Composite fan blade dovetail root
US8573947B2 · kind B2 · utility
30Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Sep 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A composite fan blade having an airfoil with a leading edge and a trailing edge and a dovetail root includes a first pressure face and second pressure face, a lower horizontal face connecting the pressure faces at the bottom of the dovetail and a first and a second dovetail runout fillet connecting the pressure faces to the airfoil. The pressure faces are each angled outward at about 65 degrees to about 75 degrees from horizontal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.