Louvered seal flap edge stiffener
US4690330A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1985 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | Dec 2, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/31
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A flap for a jet engine flap-type nozzle is constructed of a plurality of sheet metal louver elements along the length of the flap, each louver element has a forward U-section having a forward flange and a rearward flange with an interconnecting bottom portion, a plate member extends rearwardly from the end of the rearward flange at the open end of the U-section, the plate member extending over the U-section of its adjacent louver element, the plurality of louver elements being connected together by welding the forward flange to the mating rearward flange, a beam plate extending axially along the U-sections and being fixed thereto, the plate members of adjacent louvers being free to move relative to each other; a stiffener is fixed to the sides of the flap formed by the ends of the plate members, permitting the free movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.