Scroll compressor including a fixed and orbiting scroll
US-2021148361-A1 · May 20, 2021 · US
Scroll compressor
US12546314B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12546314-B2 |
| Application number | US-202318872919-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 26, 2023 |
| Priority date | Jul 22, 2022 |
| Publication date | Feb 10, 2026 |
| Grant date | Feb 10, 2026 |
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 first coating layer formed by tin plating is formed on a compression chamber-side end face of a baseplate of one scroll and a surface of a spiral wall, a second coating layer formed by nickel-phosphorus plating is formed on a compression chamber-side end face of a baseplate of another scroll and a surface of a spiral wall, a wall height of the spiral wall of the other scroll is higher than a wall height of the spiral wall of the one scroll, and the first coating layer at the tip of the spiral wall of the one scroll and the second coating layer of the baseplate of the other scroll are separated from each other, and the first coating layer of the baseplate of the one scroll and the second coating layer at the tip of the spiral wall of the other scroll are in contact with each other.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A scroll compressor comprising a fixed scroll and an orbiting scroll that are disposed to mesh with each other and have a baseplate and a spiral wall erected on the baseplate, the scroll compressor being configured to revolve the orbiting scroll with respect to the fixed scroll to compress a fluid taken into a compression chamber formed between the fixed scroll and the orbiting scroll, wherein the fixed scroll and the orbiting scroll are made of an aluminum-based material, a first coating layer formed by tin plating is formed on a compression chamber-side end face of the baseplate of the fixed scroll and a surface of the spiral wall of the fixed scroll, a second coating layer formed by nickel-phosphorus plating is formed on a compression chamber-side end face of the baseplate of the orbiting scroll and a surface of the spiral wall of the orbiting scroll, a wall height of the spiral wall of the orbiting scroll is set to be higher than a wall height of the spiral wall of the fixed scroll, the first coating layer at the tip of the spiral wall of the fixed scroll and the second coating layer of the baseplate of the orbiting scroll are separated from each other, the first coating layer of the baseplate of the fixed scroll and the second coating layer at the tip of the spiral wall of the orbing scroll are in contact with each other, and a plating area of the orbiting scroll is smaller than a plating area of the fixed scroll. 2 . The scroll compressor according to claim 1 , wherein the fluid is a gas refrigerant, and the gas refrigerant is taken into the compression chamber together with a lubricating oil, and an oil film made of the lubricating oil is formed in a gap between the first coating layer at a tip of the spiral wall of the fixed scroll and the second coating layer of the baseplate of the orbiting scroll.
Assignees
Inventors
Classifications
Aluminium alloy, e.g. AlCuMgPb F34,37 · CPC title
Coating · CPC title
Details of the wrap tips · CPC title
Gap; Clearance · CPC title
Coating · 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 US12546314B2 cover?
- A first coating layer formed by tin plating is formed on a compression chamber-side end face of a baseplate of one scroll and a surface of a spiral wall, a second coating layer formed by nickel-phosphorus plating is formed on a compression chamber-side end face of a baseplate of another scroll and a surface of a spiral wall, a wall height of the spiral wall of the other scroll is higher than a …
- Who is the assignee on this patent?
- Sanden Corp
- What technology area does this patent fall under?
- Primary CPC classification F04C18/0215. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 10 2026 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).