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Patent metadata

Field	Value
Publication number	US-11009080-B2
Application number	US-201815916134-A
Country	US
Kind code	B2
Filing date	Mar 8, 2018
Priority date	Mar 8, 2018
Publication date	May 18, 2021
Grant date	May 18, 2021

Abstract

A link includes an outer composite portion substantially encircling at least two bearing pockets and a central substantially incompressible portion disposed between the at least two bearing pockets.

First claim

What is claimed is:

1. A link, comprising:
an outer composite portion comprising a plurality of layers substantially encircling at least two bearing pockets, wherein the plurality of layers are fixed relative to each other; and
a central substantially incompressible portion disposed between the at least two bearing pockets, wherein the central portion comprises a plurality of composite layers and the plurality of composite layers of the central portion are fixed relative to each other;
wherein at least one of the outer portion and the central portion comprises a profile that is shaped as at least a portion of a wall of a cylinder.

2. The link of claim 1 , wherein the outer composite portion comprises a stack of broadgoods layers.

3. The link of claim 1 , wherein the central substantially incompressible portion comprises a stack of broadgoods layers.

4. The link of claim 3 , wherein the outer composite portion comprises the stack of broadgoods layers.

5. The link of claim 1 , wherein the outer composite portion comprises a wrapped composite material.

6. The link of claim 1 , wherein each of the at least two bearing pockets are configured to receive a bearing.

7. The link of claim 6 , further comprising:
a chock disposed between at least one of the at least two bearing pockets and the central substantially incompressible portion.

8. The link of claim 7 , wherein the chock comprises a substantially flat inner profile configured to face the central substantially incompressible portion.

9. The link of claim 7 , wherein the chock comprises a substantially round outer profile configured to face at least one of the two bearing pockets.

10. The link of claim 7 , wherein the central substantially incompressible portion comprises a stack of broadgoods layers.

11. The link of claim 7 , wherein the chock comprises a compression molded material.

12. The link of claim 7 , wherein the central substantially incompressible portion comprises a compression molded material.

13. The link of claim 7 , further comprising a bearing disposed in one of the at least two bearing pockets and wherein the outer composite portion is at least partially received within an at least partially circumferential channel of an outer ring of a bearing.

14. The link of claim 6 , further comprising:
a metallic chock disposed between the at least two bearing pockets, the metallic chock comprising a first round outer profile configured to face a first one of the at least two bearing pockets and a second round outer profile configured to face a second one of the at least two bearing pockets.

15. A rotorcraft, comprising:
a hub assembly, comprising:
a link, comprising:
an outer composite portion comprising a plurality of layers substantially encircling at least two bearing pockets, wherein the plurality of layers are fixed relative to each other; and
a central substantially incompressible portion disposed between the at least two bearing pockets, wherein when the central portion comprises a plurality of composite layers and the plurality of composite layers of the central portion are fixed relative to each other;
wherein at least one of the outer portion and the central portion comprises a profile that is shaped as at least a portion of a wall of a cylinder.

16. The rotorcraft of claim 15 , wherein the outer composite portion comprises a stack of broadgoods layers.

17. The rotorcraft of claim 15 , wherein the central substantially incompressible portion comprises a stack of broadgoods layers.

18. The rotorcraft of claim 17 , wherein the outer composite portion comprises the stack of broadgoods layers.

19. The rotorcraft of claim 15 , wherein the outer composite portion comprises a wrapped composite material.

20. The rotorcraft of claim 15 , wherein each of the at least two bearing pockets are configured to receive a bearing.

Assignees

• Bell Helicopter Textron Inc
• Textron Innovations Inc

Inventors

• Baldwin Tyler Wayne
• Ehinger Ryan T
• Paulson Jared Mark
• Burnett Michael Christopher
• Cravener Kyle Thomas

Classifications

• F16C2208/04

  Glass fibres · CPC title

• F16C2326/43

  Aeroplanes; Helicopters · CPC title

• B64C11/02

  Hub construction · CPC title

• F16C7/026

  made of fibre reinforced resin · CPC title

• F16C7/04

  with elastic intermediate part of fluid cushion · CPC title