Tension-torque-transmission element for a fenestron blade and method for producing it
US8834128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2010 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | May 5, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49801
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tension-torque-transmission element (3; 3′; 4) for a rotor blade of a rotary wing aircraft (helicopter), in particular for a fenestron blade of a tail rotor, with a connecting section on the blade side and a connecting section (30; 30′; 40) on the axis side, with a connecting eye (32) on each connecting section, and with a torque-transmission section (34; 34′; 44) that connects the connecting sections (30; 30′; 40), is improved in that the tension-torque-transmission element (3; 3′; 4) is designed in a fiber-reinforced composite design including several layers (A to G) of a textile fabric. A method for producing such a tension-torque-transmission element (3; 3′; 4) is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.