Fan blade made of a textile composite material
US8100662B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2007 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Oct 25, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/603
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas-turbine engine fan blade made of a textile composite material includes short carbon fiber intermediate layers (8) for forming the blade root arranged between splayed carbon fiber layers (7) in the blade root (2). In a compressive stress-affected zone (11) of the blade root, the fiber layers extend parallel to the flanks (12) of the blade root. The diversion of the carbon fiber layers (7) up to the splayed area is effected in a transition area (13). A glass fiber outer layer (10) arranged on the flanks (12) of the blade root gradually runs out at a transition zone (15) of the transition area (13), this zone being diverted at a certain radius. Between the glass fiber outer layer and the outer carbon fiber layer there is a carbon fiber layer (9) oriented at +/−45°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.