Funneled rotary foil
US6457671B1 · kind B1 · utility
5Cited by
7References
9Claims
0Family size
Inventor
Key dates
| Filing date | Sep 5, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Sep 5, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A funnel strip is added to a rotary airfoil, which utilizes the Bernoulli principle to increase the velocity of air over the suction side of the rotating airfoil to increase the lift. The device is applicable to thrust-producing devices, such as propellers, as well as to wind-powered devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.