Shaft Seal Assembly
US-2024353006-A1 · Oct 24, 2024 · US
Seal device
US11085539B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11085539-B2 |
| Application number | US-201816488097-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 16, 2018 |
| Priority date | Feb 22, 2017 |
| Publication date | Aug 10, 2021 |
| Grant date | Aug 10, 2021 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A sealing device includes a floating ring in a space between the outer circumference of a rotating shaft and the inner circumference of a housing, and a multi-layered cylindrical body including a plurality of elastically deformable cylindrical thin plates layered on top of each other provided between an outer peripheral surface of the floating ring and an inner peripheral surface of the housing, so as to impart a radial restoring force against the eccentricity of the rotating shaft to restore it to its center position, and a tangential damping force to reduce the whirling of the rotating shaft.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sealing device comprising: a floating ring in a space between an outer circumference of a rotating shaft and an inner circumference of a housing, wherein the floating ring is constituted by a floating ring body made of carbon, and a metallic support ring fitted on an outer periphery of the floating ring body; and a multi-layered cylindrical body including a plurality of elastically deformable cylindrical thin plates layered on top of each other provided between an outer peripheral surface of the floating ring and an inner peripheral surface of the housing, wherein the multi-layered cylindrical body is formed in a circumferentially corrugated shape, and the corrugated shape of the multi-layered cylindrical body is set such that, when the rotating shaft is at rest, valleys are in contact with the outer peripheral surface of the floating ring and peaks are in contact with the inner peripheral surface of the housing. 2. The sealing device according to claim 1 , wherein the multi-layered cylindrical body is provided such that sealed fluid is present at opposite ends thereof, and is provided with a gap between the plurality of thin plates for allowing the sealed fluid to enter and exit from opposite ends thereof. 3. The sealing device according to claim 1 , wherein the thin plates are formed of an elastically deformable metallic material. 4. The sealing device according to claim 2 , wherein the thin plates are formed of an elastically deformable metallic material.
Assignees
Inventors
Classifications
- F16J15/441Primary
with floating ring · CPC title
with floating brasses or brushing, rotatable at a reduced speed {(F16C17/03, F16C17/06 take precedence)} · CPC title
by means of fluid · CPC title
using sealing-rings · CPC title
with radially or tangentially compressed packing · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11085539B2 cover?
- A sealing device includes a floating ring in a space between the outer circumference of a rotating shaft and the inner circumference of a housing, and a multi-layered cylindrical body including a plurality of elastically deformable cylindrical thin plates layered on top of each other provided between an outer peripheral surface of the floating ring and an inner peripheral surface of the housing…
- Who is the assignee on this patent?
- Eagle Ind Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16J15/441. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 10 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).