Iron-based sintered alloy material and production method therefor
US-2020331068-A1 · Oct 22, 2020 · US
Outer ring for an oil pump and a method for manufacturing the same
US12196206B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12196206-B2 |
| Application number | US-202318509959-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 15, 2023 |
| Priority date | Aug 13, 2021 |
| Publication date | Jan 14, 2025 |
| Grant date | Jan 14, 2025 |
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- Title
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Abstract
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Disclosed are an outer ring for an oil pump having an increased number and size of open pores in a surface of a molded article and a method for manufacturing the outer ring.
First claim
Opening claim text (preview).
What is claimed is: 1. An outer ring for an oil pump, the outer ring comprising: 1.30 wt. % to 1.60 wt. % of chromium, 0.16 wt. % to 0.23 wt. % of molybdenum, 0.30 wt. % to 0.50 wt. % of manganese, 0.10 wt. % to 0.20 wt. % of sulfur, 0.51 wt. % to 0.70 wt. % of carbon, 1.81 wt. % to 2.22 wt. % of copper, and a balance of the iron. 2. The outer ring according to claim 1 , wherein pores having a size of 100 μm or more are present in 10% or more of a surface of the outer ring. 3. The outer ring according to claim 1 , wherein the outer ring has a HV0.3 micro-hardness of 550 or more and a HV10 macro-hardness of 280 or more.
Assignees
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Classifications
Nitrogen · CPC title
by sintering · CPC title
Copper · CPC title
Iron · CPC title
Rotors · CPC title
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Frequently asked questions
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- What does patent US12196206B2 cover?
- Disclosed are an outer ring for an oil pump having an increased number and size of open pores in a surface of a molded article and a method for manufacturing the outer ring.
- Who is the assignee on this patent?
- Hyundai Motor Co Ltd, Kia Corp, Myung Hwa Ind Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F04C2/082. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 14 2025 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).