Piston ring sealing for pneumatic actuator
US-2016369894-A1 · Dec 22, 2016 · US
Piston and cooled piston ring therefor and method of construction thereof
US8955487B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8955487-B2 |
| Application number | US-201213370744-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 10, 2012 |
| Priority date | Feb 10, 2012 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
Official abstract text for this publication.
A piston, piston ring and method of construction thereof is provided. The piston ring is L-shaped, having a first portion configured to extend upwardly from a ring groove of a piston along a top land of the piston and a second portion configured for receipt in the ring groove. The first and second portions of the ring have an enclosed hollow cooling chamber with a cooling medium disposed therein such that the cooling medium is free to flow internally to the piston ring groove and upwardly from the piston ring groove along the top land.
First claim
Opening claim text (preview).
What is claimed is: 1. A piston ring for an internal combustion engine, comprising: a L-shaped ring having a first portion configured to extend upwardly from a ring groove of a piston along a top land of the piston and a second portion configured for receipt in the ring groove, said first and second portions of said ring having an enclosed hollow cooling chamber with a cooling medium disposed therein such that the cooling medium is free to flow internally to the ring groove and up…
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Cross-Sectional Technologies · mapped topic
- F16J9/20Primary
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8955487B2 cover?
- A piston, piston ring and method of construction thereof is provided. The piston ring is L-shaped, having a first portion configured to extend upwardly from a ring groove of a piston along a top land of the piston and a second portion configured for receipt in the ring groove. The first and second portions of the ring have an enclosed hollow cooling chamber with a cooling medium disposed therei…
- Who is the assignee on this patent?
- Hampton Keith, Azevedo Miguel, Federal Mogul Corp
- What technology area does this patent fall under?
- Primary CPC classification F16J9/20. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 17 2015 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).