Wing for an aircraft

Patent metadata

Field	Value
Publication number	US-12583575-B2
Application number	US-202418765129-A
Country	US
Kind code	B2
Filing date	Jul 5, 2024
Priority date	Jul 12, 2023
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

An aircraft wing ( 3 ) including a main wing ( 5 ), a slat ( 7 ), and a connection assembly ( 9 ) movably connecting the slat ( 7 ) to the main wing ( 5 ). The connection assembly ( 9 ) includes an elongate slat track ( 17 ) extending along a track longitudinal axis ( 19 ) having a front end ( 21 ) an intermediate portion ( 25 ) and a rear end ( 23 ). The front end ( 21 ) and/or the intermediate portion ( 25 ) is mounted to the slat ( 7 ). The rear end ( 23 ) and/or the intermediate portion ( 25 ) is mounted to the main wing ( 5 ) by a roller bearing ( 27 ). The roller bearing ( 27 ) includes a guide rail ( 29 ) mounted to the main wing ( 5 ) and a first roller unit ( 31 ) mounted to the rear end ( 23 ) of the slat track ( 17 ) and engaging the guide rail ( 29 ), and wherein the guide rail ( 29 ) includes an upper rail portion ( 32 ) and a lower rail portion ( 34 ).

First claim

The invention claimed is:

1 . A wing for an aircraft, the wing including:
a main wing, and a leading edge high lift assembly including: a slat, and a connection assembly movably connecting the slat to the main wing, such that the slat is movable between a retracted position and at least one extended position, wherein the connection assembly comprises an elongate slat track that extends along a track longitudinal axis between a front end and a rear end and has an intermediate portion between the front and rear ends, wherein the front end and/or the intermediate portion of the elongate slat track is mounted to the slat, wherein the rear end and/or the intermediate portion of the elongate slat track is mounted to the main wing by a roller bearing such that the elongate slat track is movable along the track longitudinal axis, wherein the roller bearing engage a guide rail mounted to the main wing and the roller bearing includes a first roller bearing unit mounted to the rear end of the elongate slat track and engaging the guide rail, wherein the guide rail comprises an upper rail portion over an upper portion of the elongate slat track and a lower rail portion underneath a lower portion of the slat track, wherein the guide rail comprises a longitudinal slot in the upper rail portion and/or in the lower rail portion, wherein the connection assembly comprises an actuation device mounted to the main wing and attached to the elongate slat track, wherein the actuation device is configured to move the elongate slat track and the slat between the retracted position and the at least one extended position, and wherein the actuation device extends into the longitudinal slot to rotatably attach to the slat track.

2 . The wing according to claim 1 , wherein the longitudinal slot is throughgoing from a front end to a rear end of the guide rail.

3 . The wing according to claim 1 , wherein the roller bearing comprises a second roller unit that is mounted to the main wing and that engages an engagement surface provided at the intermediate portion of the elongate slat track,
wherein the upper portion of the elongate slat track includes an upper flange portion, the lower portion of the elongate slat track includes a lower flange portion, and the elongate slat track includes at least one web portion connecting the upper flange portion and the lower flange portion, wherein the second roller unit engages the engagement surface provided at the upper flange portion and/or at the lower flange portion, wherein the elongate slat track has a first recess between the upper flange portion and the lower flange portion adjacent a first side of the web portion, and a second recess between the upper flange portion and the lower flange portion adjacent a second side of the web portion opposite the first side, wherein the second roller unit comprises a first roller element and a second roller element, wherein the first roller element is arranged in the first recess and the second roller element is arranged in the second recess, and wherein the first roller element and the second roller element are arranged coaxially and have a common radius.

4 . The wing according to claim 1 , wherein the actuation device comprises a rotating drive arm that is rotatably driven about a drive axis and that is mounted to the elongate slat track, and wherein the drive arm reaches through the longitudinal slot.

5 . The wing according to claim 4 , wherein the drive arm reaches through the longitudinal slot in the lower rail portion.

6 . The wing according to claim 1 , wherein the guide rail comprises a first rail part arranged at a first side of the elongate slat track and a second rail part arranged at a second side of the elongate slat track, and wherein the longitudinal slot extends between the first rail part and the second rail part.

7 . The wing according to claim 6 , wherein the longitudinal slot includes an upper slot in the upper rail portion of the guide rail and a lower slot in the lower rail portion of the guide rail, and
wherein the upper slot and the lower slot are throughgoing from the front end to the rear end of the guide rail.

8 . The wing according to claim 6 , wherein the first rail part and/or the second rail part have a C-shaped cross section including the upper rail portion, the lower rail portion, and a side portion connecting the upper rail portion and the lower rail portion.

9 . The wing according to claim 1 , wherein the first roller unit comprises a third roller element and a fourth roller element, wherein the third roller element and the fourth roller element are arranged coaxially and have a common radius.

10 . The wing according to claim 9 , wherein the third roller element engages with the first rail part and/or the fourth roller element engages with the second rail part.

11 . The wing according to claim 9 , wherein the elongate slat track comprises a first track part and a second track part that are formed separate from one another,
wherein each of the first and second track parts is formed integrally and extends along the track longitudinal axis from the rear end to the front end, wherein the first and second track parts are mounted to one another and rest against one another along a contact plane spanned by the track longitudinal axis and a wing thickness direction, wherein the third roller element is mounted to the first track part and the fourth roller element is mounted to the second track part.

12 . An aircraft comprising the wing according to claim 1 .

13 . A leading edge high lift assembly for a wing of an aircraft, the leading edge high lift assembly comprising
a slat, and a connection assembly configured to moveably connect the slat to a main wing of the wing of the aircraft such that the slat is movable, relative to the main wing, between a retracted position and at least one extended position, wherein the connection assembly comprises an elongate slat track that extends along a track longitudinal axis between a front end and a rear end, and an intermediate portion is between the front end and rear end, wherein the front end and/or the intermediate portion of the elongate slat track is configured to be mounted to the slat, wherein the rear end and/or the intermediate portion of the elongate slat track is configured to be mounted to the main wing by a roller bearing such that the elongate slat track is movable along the track longitudinal axis, wherein the roller bearing is configured to engage a guide rail mounted to the main wing, and the roller bearing includes a first roller bearing unit mounted to the rear end of the elongate slat track and configured to engage the guide rail, wherein the guide rail comprises an upper rail portion over an upper portion of the slat track and a lower rail portion beneath a lower portion of the slat track, wherein the guide rail comprises a longitudinal slot in the upper rail portion and/or in the lower rail portion, wherein the connection assembly comprises an actuation device configured to be mounted to the main wing and configured to attach to the elongate slat track, wherein the actuation device is configured to move the elongate slat track and the slat between the retracted position and the at least one extended position, and wherein the actuation device is configured to extend into the longitudinal slot of the guide rail to rotatably attach to the elongate slat track.

14 . The leading edge high lift assembly according to claim 13 , wherein the actuation device includes a drive arm having a first end section rotatably mounted to the main wing to r

Assignees

• Airbus Operations Gmbh

Inventors

• Schlipf Bernhard
• Haunert Jan

Classifications

• B64C13/26

  without power amplification or where power amplification is irrelevant · CPC title

• B64C9/02 Primary

  Mounting or supporting thereof · CPC title

• B64C9/24 Primary

  by single flap · CPC title