| 发明名称 |
Winglet system and method |
| 摘要 |
A winglet system for an aircraft wing may include an upper winglet and a lower winglet mounted to a wing tip. The lower winglet may have a static position when the wing is subject to an on-ground static loading. The lower winglet may be configured such that upward deflection of the wing under an approximate 1-g flight loading causes the lower winglet to move upwardly and outwardly from the static position to an in-flight position resulting in an effective span increase of the wing under the approximate 1-g flight loading relative to the span of the wing under the on-ground static loading. The lower winglet may have a length of approximately 50-80 percent of a length of the upper winglet. |
| 申请公布号 |
US9216817(B1) |
申请公布日期 |
2015.12.22 |
| 申请号 |
US201414566483 |
申请日期 |
2014.12.10 |
| 申请人 |
The Boeing Company |
发明人 |
Roman Dino L.;Vassberg John C.;Friedman Douglas M.;Malachowski Adam P.;Vegter Christopher A. |
| 分类号 |
B64C23/06 |
主分类号 |
B64C23/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A winglet system, comprising:
an upper winglet and a lower winglet mounted to a wing; the lower winglet has a length of approximately 50-80 percent of a length of the upper winglet; the lower winglet having a static position when the wing is subject to an on-ground static loading; and the lower winglet being configured such that upward deflection of the wing under an approximate 1-g flight loading causes the lower winglet to move upwardly and outwardly from the static position to an in-flight position resulting in an effective span increase of the wing under the approximate 1-g flight loading relative to the span of the wing under the on-ground static loading. |
| 地址 |
Chicago IL US |
