Seal ring
US-2018100584-A1 · Apr 12, 2018 · US
Seal ring
US11525512B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11525512-B2 |
| Application number | US-201917047631-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 16, 2019 |
| Priority date | May 17, 2018 |
| Publication date | Dec 13, 2022 |
| Grant date | Dec 13, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Provided is a seal ring configured so that stable lubrication performance can be provided across a wide range of rotation speed. A seal ring for sealing a clearance between a rotary shaft and a housing includes; inclined grooves formed at a sliding surface so as to be arranged in a circumferential direction, the inclined grooves being closed on an outer diameter side thereof and configured to generate a dynamic pressure; and supply grooves opening on a sealed fluid side and communicating with an inner diameter side of the inclined grooves.
First claim
Opening claim text (preview).
The invention claimed is: 1. A seal ring for sealing a clearance between a rotary shaft and a housing, comprising: inclined grooves formed at a sliding surface so as to be arranged in a circumferential direction, the inclined grooves being closed on an outer diameter side thereof and configured to generate a dynamic pressure; and supply grooves opening on a sealed fluid side and communicating with an inner diameter side of the inclined grooves, wherein the seal ring further comprises a communication groove through which the inclined grooves communicate with each other and which extends in the circumferential direction, and the communication groove communicates with the supply grooves. 2. The seal ring according to claim 1 , wherein the supply grooves are equally arranged in the circumferential direction. 3. The seal ring according to claim 2 , wherein one of the supply grooves communicates with at least two the inclined grooves. 4. The seal ring according to claim 2 , further comprising a communication groove through which the inclined grooves communicate with each other and which extends in the circumferential direction, wherein the communication groove communicates with the supply grooves. 5. The seal ring according to claim 4 , wherein all of the inclined grooves communicate with each other through the communication groove extending in the circumferential direction. 6. The seal ring according to claim 2 , wherein each of the inclined grooves is provided with an introduction port opening on the inner diameter side thereof, the introduction port being arranged on an outer diameter side of the sliding surface. 7. The seal ring according to claim 1 , wherein one of the supply grooves communicates with at least two the inclined grooves. 8. The seal ring according to claim 7 , further comprising a communication groove through which the inclined grooves communicate with each other and which extends in the circumferential direction, wherein the communication groove communicates with the supply grooves. 9. The seal ring according to claim 8 , wherein all of the inclined grooves communicate with each other through the communication groove extending in the circumferential direction. 10. The seal ring according to claim 7 , wherein each of the inclined grooves is provided with an introduction port opening on the inner diameter side thereof, the introduction port being arranged on an outer diameter side of the sliding surface. 11. The seal ring according to claim 1 , wherein all of the inclined grooves communicate with each other through the communication groove extending in the circumferential direction. 12. The seal ring according to claim 11 , wherein each of the inclined grooves is provided with an introduction port opening on the inner diameter side thereof, the introduction port being arranged on an outer diameter side of the sliding surface. 13. The seal ring according to claim 1 , wherein each of the inclined grooves is provided with an introduction port opening on the inner diameter side thereof, the introduction port being arranged on an outer diameter side of the sliding surface.
Assignees
Inventors
Classifications
of sliding-contact bearings · CPC title
Grooves on a bearing surface for distributing or collecting the liquid · CPC title
Grooves for generating pressure · CPC title
with grooves in the bearing surface to generate hydrodynamic pressure, e.g. spiral groove thrust bearings · CPC title
- F16J15/3272Primary
the rings having a break or opening, e.g. to enable mounting on a shaft otherwise than from a shaft end · CPC title
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Frequently asked questions
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- What does patent US11525512B2 cover?
- Provided is a seal ring configured so that stable lubrication performance can be provided across a wide range of rotation speed. A seal ring for sealing a clearance between a rotary shaft and a housing includes; inclined grooves formed at a sliding surface so as to be arranged in a circumferential direction, the inclined grooves being closed on an outer diameter side thereof and configured to g…
- Who is the assignee on this patent?
- Eagle Ind Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16J15/3272. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 13 2022 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).