Wind turbine blade with device for changing the aerodynamic surface or shape
US8899923B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2009 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Dec 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a wind turbine blade comprising a device for modifying the aerodynamic surface or shape of the blade in an area of the trailing edge, and activation mechanisms for controlling the position and/or movement of the device. The device is at least partly divided into a number of sections by interstices or connecting portions having a higher elasticity. Hereby the overall longitudinal bending flexibility of the device is increased which in turn increases the operability of the aerodynamic device and reduces the wear of the system. The interstices may be open, comprise a filler material, or optionally be covered by an elastic film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.