Multi-unit rotor blade system integrated wind turbine
US5876181A · kind A · utility
Inventor
Key dates
| Filing date | Dec 17, 1996 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Dec 17, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The described wind turbine has a set of propeller type wind force collecting rotor turbines which is comprised of an up-wind auxiliary rotor blade turbine, being disposed on the front end of the combined bevel-planet gear assembly, and a down-wind main rotor blade turbine together with attached extender having twice the radius of the auxiliary rotor turbine. These rotor blades rotate in opposite directions with respect to one another, and the extender enables the main turbine to be activated by normal wind speed without aerodynamic wake turbulence effects created by the movement of the auxiliary rotor blade. The super-large scale, integrated, multi-unit rotor blade wind turbine has four sets of wind force collecting rotor blade turbines composed of an auxiliary up-wind rotor turbine and three down-wind rotor turbine units evenly spaced around a central pivotal rotor hub on extenders which arc the same length as the radius of the auxiliary turbine blade. The above described wind turbines are provided with a microprocessor pitch control system thereby achieving a highly efficient stall and storm control operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.