Aerodynamic sealing and wing for an aircraft comprising such sealing

Patent metadata

Field	Value
Publication number	US-11046419-B2
Application number	US-201815968850-A
Country	US
Kind code	B2
Filing date	May 2, 2018
Priority date	May 2, 2017
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

An aerodynamic sealing includes: an elastic first sealing wall extending between a first bottom edge and a first tip edge; an elastic second sealing wall extending between a second bottom edge and a second tip edge, and extending convergent with respect to the first sealing wall, so that the first and second sealing walls are joined together at their first and second tip edges to form a tip line; a bottom element connecting the first bottom edge to the second bottom edge, wherein the bottom element is joined to both the first sealing wall and the second sealing wall; and a plurality of stiffening elements connecting the first sealing wall to the second sealing wall between the tip line and the bottom element, wherein the stiffening elements are spaced apart from one another and joined to both the first sealing wall and the second sealing wall.

First claim

The invention claimed is:

1. A wing for an aircraft, comprising:
a main wing; and
a Krueger flap having a first flap edge and an opposite second flap edge,
wherein the first flap edge is pivotably mounted to the main wing, such that the Krueger flap is pivotable relative to the main wing between an extended position and a stowed position,
wherein in the extended position the second flap edge forms an extension of a leading edge of the main wing, and in the stowed position the second flap edge rests against a lower side of the main wing,
wherein the wing further comprises an aerodynamic sealing comprises:
an elastic first sealing wall extending between a first bottom edge and a first tip edge;
an elastic second sealing wall extending between a second bottom edge and a second tip edge, and extending convergent with respect to the first sealing wall, so that the first and second sealing walls are joined together at their first and second tip edges to form a tip line;
a bottom element connecting the first bottom edge to the second bottom edge, wherein the bottom element is joined to both the first sealing wall and the second sealing wall; and
a plurality of stiffening elements connecting the first sealing wall to the second sealing wall between the tip line and the bottom element, wherein the stiffening elements are spaced apart from one another and joined to both the first sealing wall and the second sealing wall, and

wherein the aerodynamic sealing is mounted to the lower side of the main wing such that the second flap edge in the stowed position contacts and deforms the aerodynamic sealing to seal a gap between the lower side of the main wing and the second flap edge of the Krueger flap.

2. The wing according to claim 1 , wherein the stiffening elements are formed elastically.

3. The wing according to claim 1 , wherein the stiffening elements are formed rigidly.

4. The wing according to claim 1 , wherein the stiffening elements are pivotably joined to the first sealing wall and to the second sealing wall.

5. The wing according to claim 1 , wherein the first sealing wall or the second sealing wall are formed planar.

6. The wing according to claim 1 , wherein the bottom element is formed rigid or planar.

7. The wing according to claim 1 , wherein the tip line has a straight course in parallel to the bottom element.

8. The wing according to claim 1 , wherein the stiffening elements extend straight and in parallel to one another.

9. The wing according to claim 1 , wherein the first and second sealing walls are fixedly joined together at the tip line, and wherein the bottom element is fixedly joined to the first sealing wall and to the second sealing wall.

10. The wing according to claim 1 , wherein the first and second sealing walls, the bottom element and the stiffening elements extend in a depth direction and have a constant cross section along the depth direction.

11. The wing according to claim 1 , wherein the lower side of the main wing comprises a recess adapted to receive the second flap edge of the Krueger flap in the stowed position, and
wherein the aerodynamic sealing is arranged in the recess, such that the bottom element is mounted to a first recess wall, the second sealing wall rests against a second recess wall, the tip line points to an ambient, and the first sealing wall is contacted and deformed by the second flap edge of the Krueger flap.

12. A wing for an aircraft, comprising:
a main wing; and
a trailing edge flap mounted to a trailing edge of the main wing movably between a retracted position and an extended position,
wherein a gap is formed between a leading edge of the trailing edge flap and a lower panel of the main wing,
wherein the wing further comprises an aerodynamic sealing comprises:
an elastic first sealing wall extending between a first bottom edge and a first tip edge;
an elastic second sealing wall extending between a second bottom edge and a second tip edge, and extending convergent with respect to the first sealing wall, so that the first and second sealing walls are joined together at their first and second tip edges to form a tip line;
a bottom element connecting the first bottom edge to the second bottom edge, wherein the bottom element is joined to both the first sealing wall and the second sealing wall; and

a plurality of stiffening elements connecting the first sealing wall to the second sealing wall between the tip line and the bottom element, wherein the stiffening elements are spaced apart from one another and joined to both the first sealing wall and the second sealing wall, and
wherein the aerodynamic sealing is mounted to the main wing inside the gap, such that in the extended position of the trailing edge flap a passage is left open between the aerodynamic sealing and the leading edge of the trailing edge flap, while in the retracted position the leading edge of the trailing edge flap contacts and deforms the aerodynamic sealing.

13. The wing according to claim 12 , wherein the aerodynamic sealing is arranged inside the gap in such a way that the bottom element is mounted to an inner side of the lower panel of the main wing such that the tip line points to an inside of the main wing, and in such a way that in the retracted position the second sealing wall is contacted and deformed by the leading edge of the trailing edge flap.

14. The wing according to claim 13 , wherein the aerodynamic sealing comprises an elastic blade seal extending as an extension of the bottom element beyond the second sealing wall in the direction of the leading edge of the trailing edge flap to further minimize the gap.

Assignees

• Airbus Operations Gmbh

Inventors

• Lorenz Florian

Classifications

• F16J15/024

  the packing being locally weakened in order to increase elasticity · CPC title

• F16J15/104

  characterised by structure · CPC title

• B64C9/22

  at the front of the wing · CPC title

• B64C7/00 Primary

  Structures or fairings not otherwise provided for · CPC title

• B64C9/02

  Mounting or supporting thereof · CPC title