Composite fan blade trailing edge reinforcement
US5785498A · kind A · utility
84Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1996 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Jan 29, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/603
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a composite airfoil, particularly useful as a wide chord fan blade having a high degree of twist in a large high bypass ratio turbofan engine. The composite airfoil of the present invention has a reinforced region of its airfoil that extends a portion of its span from its tip and a portion of its chord from its trailing edge. The region is covered by thin metallic sheathing bonded to trailing edge surfaces of the blade in a manner to reinforce that portion of the composite blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.