Active control of multi-element rotor blade airfoils
US6932569B2 · kind B2 · utility
13Cited by
21References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2002 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Jun 9, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A multi-element rotor blade includes an individually controllable main element and fixed aerodynamic surface in an aerodynamically efficient location relative to the main element. The main element is controlled to locate the fixed aerodynamic surface in a position to increase lift and/or reduce drag upon the main element at various azimuthal positions during rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.