Wind turbine blade with lift-regulating means in form of slots or holes
US8807940B2 · kind B2 · utility
8Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2008 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Jun 15, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blade for a wind turbine rotor with a hub is described. The object of the invention is to provide a wind turbine blade of the modern, aerodynamic type with improved regulating properties to enhance the adjustment of the wind turbine to various wind conditions, and where no mechanical parts are needed near the tip area. At least one slot or a number of holes arranged in at least one longitudinally extending zone, thereby allowing an interior cavity of the blade to communicate with the exterior. The amount of air emitted from the interior cavity to the exterior is also regulated to alter the aerodynamic properties of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.