Soft-in-Plane Proprotor Systems
US-2018162519-A1 · Jun 14, 2018 · US
Hub with integral elastomeric bearing
US11111012B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11111012-B2 |
| Application number | US-201916589205-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 1, 2019 |
| Priority date | Oct 1, 2019 |
| Publication date | Sep 7, 2021 |
| Grant date | Sep 7, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A rotor hub assembly includes a yoke and a high capacity laminated (HCL) bearing, comprising layers of elastomeric material and layers of metal. The HCL bearing is affixed to the yoke to prevent separation of the HCL bearing from the yoke.
First claim
Opening claim text (preview).
What is claimed is: 1. A rotor hub assembly, comprising: a yoke; and a high capacity laminated (HCL) bearing, comprising layers of elastomeric material and layers of metal, the HCL bearing being affixed to the yoke to prevent separation of the HCL bearing from the yoke; wherein the HCL bearing is not captured by a shape profile of the yoke to which the HCL bearing is affixed; wherein the HCL bearing comprises a closed-loop shape disposed about a mast axis of the rotor hub assembly; and wherein the HCL bearing is affixed to the yoke using a frustoconical shaped profile of the yoke. 2. The rotor hub assembly of claim 1 , wherein the HCL bearing is affixed to a central cone interface of the yoke. 3. The rotor hub assembly of claim 2 , wherein the elastomeric material of the HCL bearing is bonded to the central cone interface. 4. The rotor hub assembly of claim 3 , wherein the yoke is a composite yoke. 5. The rotor hub assembly of claim 3 , wherein the yoke is a metal yoke. 6. The rotor hub assembly of claim 1 , wherein the yoke comprises metal and the elastomeric material of the HCL bearing is vulcanized to the yoke. 7. The rotor hub assembly of claim 6 , wherein the elastomeric material of the HCL bearing is vulcanized to a central cone interface of the yoke. 8. The rotor hub assembly of claim 1 , wherein the HCL bearing comprises an outer member affixed to the yoke. 9. The rotor hub assembly of claim 8 , wherein the outer member comprises metal. 10. The rotor hub assembly of claim 9 , wherein the outer member is bonded to a central cone interface of the yoke. 11. The rotor hub assembly of claim 1 , wherein a portion of the HCL bearing closest to the yoke is prevented from rotating relative to the yoke. 12. A method of constructing a rotor hub assembly, comprising: providing a yoke and a mast; and affixing a high capacity laminated (HCL) bearing to the yoke to prevent separation of the HCL bearing from the yoke without using the yoke to capture the HCL bearing; wherein the HCL bearing comprises a closed-loop shape disposed about a mast axis of the rotor hub assembly; and wherein the HCL bearing is affixed to the yoke using a frustoconical shaped profile of the yoke. 13. The method of claim 12 , wherein the yoke is a composite yoke. 14. The method of claim 13 , wherein an elastomeric portion of the HCL bearing is bonded to the yoke. 15. The method of claim 13 , wherein a metal portion of the HCL bearing is bonded to the yoke. 16. The method of claim 15 , wherein the metal portion comprises an outer member. 17. The method of claim 12 , wherein the yoke is a metal yoke. 18. The method of claim 17 , wherein the HCL bearing is affixed to the yoke using a vulcanization process.
Assignees
Inventors
Classifications
- F16C27/063Primary
Sliding contact bearings · CPC title
with resilient bearings · CPC title
for axial load mainly · CPC title
- B64C27/35Primary
having elastomeric joints · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11111012B2 cover?
- A rotor hub assembly includes a yoke and a high capacity laminated (HCL) bearing, comprising layers of elastomeric material and layers of metal. The HCL bearing is affixed to the yoke to prevent separation of the HCL bearing from the yoke.
- Who is the assignee on this patent?
- Bell Textron Inc, Textron Innovations Inc
- What technology area does this patent fall under?
- Primary CPC classification F16C27/063. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Sep 07 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).