Device for closing and opening in the leading edge of a wing
US4880189A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 4, 1988 |
| Grant date | Nov 14, 1989 |
| Priority date | — |
| Expiry date | Sep 4, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C9/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A shutter arrangement for closing an aperture formed in the fixed leading edge of an aircraft wing when a track supported slat moves from a stowed, cruise configuration in which it lies adjacent the fixed wing portion to a high light configuration in which it is spaced from the wing to define a slot. The aperture, which exist to accommodate the slat to track attachment `knuckles`, may induce undesirable flow disturbance in the slot formed between the slat and the fixed leading edge. The present invention provides a hinged retractable shutter for closing off the aperture when the slat is deployed. In the preferred arrangement the shutter is of multi-panelled hinged configuration and, in one described arrangement is of one-piece moulded composite rubber construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.