Patent · US Expired

Aerodynamic structure, for a landing flap, an airfoil, an elevator unit or a rudder unit, with a changeable cambering

US6010098A · kind A · utility

48Cited by

13References

12Claims

0Family size

Assignee

DEUTSCHES ZENTRUM FÜR LUFT—UND RAUMFAHRT E.V. · DE

Inventors

Lucio Flavio Campanile · Braunschweig, DE
Holger Hanselka · Darmstadt, DE

Key dates

Filing date	Feb 24, 1998
Grant date	Jan 4, 2000
Priority date	—
Expiry date	Feb 24, 2018

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB64C3/48
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

An aerodynamic structure (9) is provided for example for a landing flap. The aerodynamic structure comprises an outer skin (11), which is deformable in cross section longitudinal to an air stream direction (12). The outer skin (11) has deformable ribs (1) with changeable cambering for stiffening the stressed skin in cross section longitudinal to the air stream direction. The ribs (1) comprise a closed flexible external girdle (2). The external shape of the external girdle (2) corresponds to the course of the outer skin (11). Furthermore, the ribs (1) comprise a plurality of stiffening struts (3) of constant length, which engage the external girdle (2) at both of their ends.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.