Telescoping wind turbine blade
US7632070B2 · kind B2 · utility
6Cited by
22References
20Claims
0Family size
Inventors
Key dates
| Filing date | Jun 7, 2005 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Jun 7, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S416/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A wind turbine blade made of a fixed blade section with an integral mounting flange for attachment to a wind turbine hub. A moveable blade section is attached to the fixed blade section and is free to move in a longitudinal direction relative to the fixed blade section. A positioning device controllably positions the moveable blade section to vary the overall length of the blade. This allows the wind turbine's rotor diameter to be adjusted. The rotor diameter can be increased in order to provide high power output in low wind conditions and it can be decreased in order to minimize loads in high wind conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.