Sliding member and member for internal combustion engine
US-2021293274-A1 · Sep 23, 2021 · US
Sliding member and member for internal combustion engine
US11976366B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11976366-B2 |
| Application number | US-201917264414-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 13, 2019 |
| Priority date | Aug 2, 2018 |
| Publication date | May 7, 2024 |
| Grant date | May 7, 2024 |
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 sliding member of the present invention includes a base material and a coating layer that is formed on the base material. The coating layer includes a particle aggregate, and the particle aggregate contains two or more kinds of precipitation hardened copper alloy particles that have different compositions. The sliding member has high coating strength and superior wear resistance.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sliding member comprising: a base materials; and a coating layer that is formed on the base material, wherein: the coating layer comprises a particle aggregate that contains two or more kinds of precipitation hardened copper alloy particles having different compositions. 2. The sliding member according to claim 1 , wherein at least one of the two or more kinds of the precipitation hardened copper alloy particles that form the particle aggregate has Vickers hardness in a range of 150 Hv to 250 Hv, as measured using a Vickers hardness test according to Japanese Industrial Standard JIS Z 2244. 3. The sliding member according to claim 2 , wherein a difference in hardness between a first kind among the two or more kinds of the precipitation hardened copper alloy particles and a second kind among the two or more kinds of the precipitation hardened copper alloy particles is 200 Hv or smaller. 4. The sliding member according to claim 2 , wherein a difference in hardness between a first kind among the two or more kinds of the precipitation hardened copper alloy particles and a second kind among the two or more kinds of the precipitation hardened copper alloy particles is 60 Hv or smaller. 5. The sliding member according to claim 1 , wherein a difference in hardness between a first kind among the two or more kinds of the precipitation hardened copper alloy particles and a second kind among the two or more kinds of the precipitation hardened copper alloy particles is 200 Hv or smaller. 6. The sliding member according to claim 1 , wherein a difference in hardness between a first kind among the two or more kinds of the precipitation hardened copper alloy particles and a second kind among the two or more kinds of the precipitation hardened copper alloy particles is 60 Hv or smaller. 7. The sliding member according to claim 1 , wherein at least one of the base material and the coating layer includes a plastically deformed part. 8. The sliding member according to claim 1 , comprising at least one of an amorphous substance and a nanocrystal at an interface between the particles that form the coating layer. 9. The sliding member according to claim 1 , comprising an intermediate layer at least at a part between the base material and the coating layer, the intermediate layer containing at least one of a diffusion layer and an intermetallic compound layer. 10. The sliding member according to claim 9 , wherein the intermediate layer has a film thickness of 2 μm or less. 11. A sliding member of an internal combustion engine, comprising the sliding member according to claim 1 at a sliding part of the internal combustion engine.
Assignees
Inventors
Classifications
Next to Co-, Cu-, or Ni-base component · CPC title
Thickness [relative or absolute] · CPC title
Surface feature [e.g., rough, mirror] · CPC title
Cu-base component · CPC title
Absolute thicknesses specified · 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 US11976366B2 cover?
- A sliding member of the present invention includes a base material and a coating layer that is formed on the base material. The coating layer includes a particle aggregate, and the particle aggregate contains two or more kinds of precipitation hardened copper alloy particles that have different compositions. The sliding member has high coating strength and superior wear resistance.
- Who is the assignee on this patent?
- Nissan Motor, Fukuda Metal Foil & Powder Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C23C28/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 07 2024 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).