High-lift device, wing, and noise reduction structure for high-lift device
US8469316B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2008 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jun 6, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2009/143
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A high-lift device suppresses the occurrence of aerodynamic noise while minimizing an increase in airframe weight. The device includes a slat main body disposed to be able to extend from and retract into a main wing, and a concave part formed on the slat main body at a location facing the main wing and able to accommodate at least a part of a leading edge of the main wing. The device also includes an airflow control part disposed at an area in the concave part facing an upper surface of the main wing, that is accommodated between the main wing and the concave part when the slat main body is refracted into the main wing, and that suppresses turbulence colliding against the area in the concave part facing the upper surface of the main wing when the slat main body is extended from the main wing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.