Airfoil with a landing flap having a flexible trailing edge
US6076775A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1998 |
| Grant date | Jun 20, 2000 |
| Priority date | — |
| Expiry date | Jul 31, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C9/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A lifting airfoil (10) includes a landing flap (20) movably connected to a main airfoil body (10') so as to form at least a portion of the trailing edge of the airfoil. The landing flap (20) includes a leading edge nose (21) and a trailing edge body (22), which are each bounded by an upper cover skin (23) and a lower cover skin (24). The trailing edge body (22) is connected to the leading edge (21) by the continuous upper cover skin (23), while a gap (25) interrupts the lower cover skin (24) between the leading edge nose (21) and the trailing edge body (22). The flap (20) is mounted on a carriage (31) that moves along a guide rail (30) so as to be slidably and pivotably extendable during take-off and landing phases of a flight. Furthermore, the trailing edge body (22) is elastically flexible and can be deflected as needed for adjusting the camber thereof during cruise flight by operating an actuating device (29) that is pivotably connected between a trailing edge area of the trailing edge body (22) and the guide rail (30).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.