Vertical axis wind turbine system
US7896609B2 · kind B2 · utility
13Cited by
5References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2007 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Sep 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/74
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention is a vertical wind turbine having a turbine with a plurality of blades or wind vanes. The blades are constructed and attached to the shaft of the turbine so as to allow them to twist open to present more surface area to wind currents when a threshold rotational velocity is reached. Also presented are a novel outer shell that is placed over at least part of the shaft and a novel turbine blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.