Efficient wing tip devices and methods for incorporating such devices into existing wing designs
US6886778B2 · kind B2 · utility
45Cited by
12References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2003 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Jun 30, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Efficient wing tip devices for use with aircraft wings. In one embodiment, an aircraft wing/winglet combination includes a wing having a wing root portion and a wing tip portion spaced apart from the wing root portion. The wing tip portion can have a wash-out twist relative to the wing root portion. The aircraft wing/winglet combination can further include a winglet extending from the wing tip portion of the wing. The winglet can be swept at least generally forward relative to the wing to favorably change the lift distribution on the wing and in turn reduce the induced drag on the wing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.