Alloy for seal ring, seal ring, and method of making seal ring for seal assembly of machine
US-9528171-B2 · Dec 27, 2016 · US
Seal ring of a mechanical seal assembly having properties extending the running time, and method for the production thereof
US9556960B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9556960-B2 |
| Application number | US-201214351357-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 2, 2012 |
| Priority date | Oct 14, 2011 |
| Publication date | Jan 31, 2017 |
| Grant date | Jan 31, 2017 |
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 seal ring for a mechanical seal, comprising a base body, a first layer applied to a first face side of a base body, and a second layer applied to a second face side of the base body. At least one of the layers is configured as a slide surface of the seal ring.
First claim
Opening claim text (preview).
The invention claimed is: 1. A seal ring for a mechanical seal, comprising: a base body, a first layer applied to a first face side of a base body, and a second layer applied to a second face side of the base body, wherein at least one of the layers is configured as a slide surface of the seal ring, wherein a change in a geometry of the base body caused by the first layer is compensated at least in part by a change in the geometry of the base body caused by the second layer, wherein the first and second layers are multi-layered, wherein the first and second layers are DLC layers, and wherein an adhesive layer, including of at least one of hydrogenous amorphous carbon layers, tetrahedral hydrogenous amorphous carbon layers, modified hydrogenous amorphous hydrocarbon layers or metal-containing hydrogenous amorphous hydrocarbon layers, is provided in between at least one of: (i) the first layer and the base body, (ii) the second layer and the base body, or (iii) neighboring layers of at least one of the first and second layers. 2. The seal ring according to claim 1 , wherein at least one surface of the seal ring, oriented in radial direction of the seal ring, is without at least one of the first or second layers. 3. The seal ring according to claim 1 , wherein the first and second layers consist of the same material, or the first and second layers consist of different materials. 4. The seal ring according to claim 1 , wherein the base body comprises silicon carbide, silicon nitride, metal carbide, tungsten carbide or carbon fiber composite material. 5. The seal ring according to claim 1 , wherein the first and second layer are each formed as a slide surface. 6. The seal ring according to claim 1 , wherein a thickness of the first layer corresponds to a thickness of the second layer. 7. The seal ring according to claim 1 , wherein the second layer has a thermal expansion coefficient differing from the thermal expansion coefficient of the first layer. 8. The seal ring according to claim 1 , wherein a thickness of the layer formed as a slide surface is between 0.1 μm and 50 μm. 9. A mechanical seal assembly, comprising a seal ring according to claim 1 . 10. The seal ring according to claim 1 , wherein a thickness of the layer formed as a slide surface is between 1 μm to 40 μm. 11. The seal ring according to claim 1 , wherein a thickness of the layer formed as a slide surface is between 2 μm to 30 μm. 12. The seal ring according to claim 1 , wherein a thickness of the layer formed as a slide surface is between 3 μm to 40 μm. 13. The seal ring according to claim 1 , wherein a thickness of the layer formed as a slide surface is and further particularly 6 μm.
Assignees
Inventors
Classifications
- F16J15/3496Primary
use of special materials · CPC title
with slip-ring pressed against a more or less radial face on one member · CPC title
and characterised by parts or details relating to lubrication, cooling or venting of the seal · 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 US9556960B2 cover?
- A seal ring for a mechanical seal, comprising a base body, a first layer applied to a first face side of a base body, and a second layer applied to a second face side of the base body. At least one of the layers is configured as a slide surface of the seal ring.
- Who is the assignee on this patent?
- Thelke Jörg, Schicktanz Rudolf, Otschik Joachim, and 11 more
- What technology area does this patent fall under?
- Primary CPC classification F16J15/3496. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 31 2017 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).