Vacuum pump
US-2017227055-A1 · Aug 10, 2017 · US
Bearing device
US10677288B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10677288-B2 |
| Application number | US-201916262365-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 30, 2019 |
| Priority date | Feb 1, 2018 |
| Publication date | Jun 9, 2020 |
| Grant date | Jun 9, 2020 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
In a bearing device, a squeeze film damper includes an annular mass member disposed in a floating state between an outer periphery of an outer race and an inner periphery of a bearing retaining member, a first squeeze film damper part formed between the outer periphery of the outer race and an inner periphery of the annular mass member, and a second squeeze film damper part formed between an outer periphery of the annular mass member and the inner periphery of the bearing retaining member. Therefore, due to the floatingly supported annular mass member being eccentric with the opposite phase to a rotating shaft, which is eccentric and undergoes centrifugal whirling, an inertial force acting on the annular mass member counteracts the centrifugal force acting on the rotating shaft, thus enabling a damping effect to be exhibited.
First claim
Opening claim text (preview).
What is claimed is: 1. A bearing device comprising an inner race fitted around an outer periphery of a rotating shaft, an outer race supported on an inner periphery of a bearing retaining member via a squeeze film damper, and a plurality of rolling bodies disposed between the inner race and the outer race, the squeeze film damper comprising an annular mass member disposed in a floating state between an outer periphery of the outer race and the inner periphery of the bearing retaining member, a first squeeze film damper part formed between the outer periphery of the outer race and an inner periphery of the annular mass member, and a second squeeze film damper part formed between an outer periphery of the annular mass member and the inner periphery of the bearing retaining member, wherein a center of gravity of the annular mass member is eccentric to a center of the annular mass member.
Assignees
Inventors
Classifications
Gas turbine engines · CPC title
with a single row or balls · CPC title
- F16C27/045Primary
with a fluid film, e.g. squeeze film damping · CPC title
Details of supply of the liquid to the bearing, e.g. passages or nozzles · CPC title
Bearings · CPC title
Patent family
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Frequently asked questions
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- What does patent US10677288B2 cover?
- In a bearing device, a squeeze film damper includes an annular mass member disposed in a floating state between an outer periphery of an outer race and an inner periphery of a bearing retaining member, a first squeeze film damper part formed between the outer periphery of the outer race and an inner periphery of the annular mass member, and a second squeeze film damper part formed between an ou…
- Who is the assignee on this patent?
- Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16C27/045. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 09 2020 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).