IP Library Granted Patent US 10,486,798
Granted Patent B2
US 10,486,798 · App. 15/490,440 · Granted Nov 26, 2019

Aircraft landing gear assembly and method of assembling the same

Inventors: Justin Cottet (Snohomish, WA); James Cusworth (Snohomish, WA); George Sonnenburg (Mukilteo, WA)
Assignee: The Boeing Company
B64C25/12B64C3/00B64C25/34B64C25/60B64C2025/125
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Quick Facts
Patent No.
US 10,486,798
App. No.
15/490,440
Granted
Nov 26, 2019
Kind
B2
Abstract

A landing gear assembly for use with an aircraft includes a housing including a trunnion brace, a drag brace, and an aft brace that together define an opening through the housing. The landing gear assembly also includes a shrink link assembly coupled to the housing such that the shrink link assembly is accessible through the opening.

Claims (46)

1. A landing gear assembly for use with an aircraft, said landing gear assembly comprising:

a housing comprising a trunnion brace, a drag brace, and an aft brace that together define an opening through said housing, wherein said housing comprises a cylinder portion defining a cavity;

an inner cylinder positioned within said cavity, wherein said inner cylinder is accessible through said opening; and

a shrink link assembly coupled between said inner cylinder and said housing and positioned at least partially within said cavity, wherein said shrink link assembly is accessible through said opening.

2. The landing gear assembly in accordance with claim 1 , wherein a portion of said shrink link assembly is positioned within said cavity, wherein said portion is accessible through said opening.

3. The landing gear assembly in accordance with claim 1 , wherein said aft brace comprises a first sidewall and a second sidewall that define a channel therebetween, wherein at least a portion of said shrink link assembly is positioned within said channel.

4. The landing gear assembly in accordance with claim 3 , wherein said channel is coupled in flow communication with said opening.

5. The landing gear assembly in accordance with claim 1 , wherein said shrink link assembly comprises:

a first link coupled to said aft brace;

a second link coupled to said first link,

wherein said inner cylinder is coupled to said second link such that said inner cylinder is accessible through said opening.

6. The landing gear assembly in accordance with claim 5 , wherein said shrink link assembly comprises a connecting link comprising a first end coupled to a wing structure of the aircraft and a second end directly coupled to said first link, wherein said second end extends at least partially though said opening.

7. The landing gear assembly in accordance with claim 6 , wherein said connecting link comprises:

a rod portion pivotally coupled to said first link; and

a fixed portion pivotally coupled to said rod portion and pivotally coupled to the wing structure.

8. An aircraft comprising:

a wing structure; and

a landing gear assembly pivotally coupled to said wing structure, wherein said landing gear assembly is moveable between a deployed position and a retracted position, said landing gear assembly comprising:

a housing comprising a trunnion brace, a drag brace, and an aft brace that together define an opening through said housing, wherein said housing comprises a cylinder portion defining a cavity;

an inner cylinder positioned within said cavity, wherein said inner cylinder is accessible through said opening; and

a shrink link assembly coupled between said inner cylinder and said housing and positioned at least partially within said cavity, wherein said shrink link assembly is accessible through said opening.

9. The aircraft in accordance with claim 8 , wherein a portion of said shrink link assembly is positioned within said cavity, wherein said portion is accessible through said opening.

10. The aircraft in accordance with claim 8 , wherein said drag brace comprises a first distal end and said aft brace comprises a second distal end, wherein said trunnion brace is coupled between said first distal end and said second distal end.

11. The aircraft in accordance with claim 8 , wherein said shrink link assembly comprises:

a first link coupled to said aft brace;

a second link coupled to said first link,

wherein said inner cylinder is coupled to said second link such that said inner cylinder is accessible through said opening.

12. The aircraft in accordance with claim 8 , further comprising a connecting link comprising a first end coupled to said wing structure and a second end directly coupled to said shrink link assembly, wherein said second end extends at least partially through said opening.

13. The aircraft in accordance with claim 12 , wherein said connecting link comprises:

a rod portion pivotally coupled to said shrink link assembly; and

a fixed portion pivotally coupled to said rod portion and pivotally coupled to the wing structure.

14. The aircraft in accordance with claim 8 , wherein said trunnion brace, said drag brace, and said aft brace are integrally formed.

15. The aircraft in accordance with claim 8 , wherein said drag brace and said aft brace form a V-shape.

16. A method of assembling a landing gear assembly for use in an aircraft, said method comprising:

coupling a trunnion brace, a drag brace, and an aft brace together to form a housing of the landing gear assembly, wherein the trunnion brace, the drag brace, and the aft brace define an opening through the housing, the housing including a cylinder portion defining a cavity;

positioning an inner cylinder within the cavity, wherein the inner cylinder is accessible through the opening; and

coupling a shrink link assembly between the inner cylinder and the housing and positioned at least partially within the cavity such that the shrink link assembly is accessible through the opening.

17. The method in accordance with claim 16 , wherein coupling the shrink link assembly to the housing comprises positioning a portion of the shrink link assembly in the cavity such that the portion is accessible through the opening, wherein the cavity is coupled in flow communication with the opening.

18. The method according to claim 16 , wherein coupling the shrink link assembly to the housing comprises:

coupling first link of the shrink link assembly to the housing;

coupling a second link of the shrink link assembly to the first link

and to the inner cylinder, wherein the inner cylinder is accessible through the opening.

19. The method according to claim 18 , wherein coupling the shrink link assembly to the housing comprises coupling a first end of a connecting link to a wing structure of the aircraft and coupling a second end of a wing structure directly to the first link such that the second end extends at least partially through the opening.

20. The method according to claim 19 , wherein coupling the connecting link comprises:

pivotally coupling a rod portion of the connecting link to the first link, and

pivotally coupling a fixed portion of the connecting link to a wing structure, and pivotally coupling the fixed portion to the rod portion.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 19, 2017
From: COTTET, JUSTIN; CUSWORTH, JAMES; SONNENBURG, GEORGE
To: THE BOEING COMPANY
Reel/Frame 042064/0230 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 18, 2017
From: COTTET, JUSTIN; CUSWORTH, JAMES; SONNENBURG, GEORGE
To: THE BOEING COMPANY
Reel/Frame 042046/0073 →
Continuity (1)
Related Publication 20180297694A1 · Oct 18, 2018
Cited By (1)
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