Piston and method of construction thereof
US-9212621-B2 · Dec 15, 2015 · US
Monobloc piston with a low friction skirt
US9909526B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9909526-B2 |
| Application number | US-86990610-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 27, 2010 |
| Priority date | Aug 27, 2009 |
| Publication date | Mar 6, 2018 |
| Grant date | Mar 6, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
A piston for an internal combustion engine has an upper crown portion with a pair of pin bosses depending therefrom, wherein the pin bosses have pin bores axially aligned along a central pin bore axis. A pair of laterally spaced skirt portions are fixedly attached to the pin bosses and depend to a lowermost free edge. At least one of the skirt portions has a recess extending upwardly from the lowermost free edge beyond the central axis of the pin bores.
First claim
Opening claim text (preview).
What is claimed is: 1. A monobloc piston, comprising: a piston body having an upper crown and a thrust side and an anti-thrust side; a pair of pin bosses depending from said upper crown and having pin bores aligned with one another along a pin bore axis; a pair of laterally spaced skirt portions fixedly attached to said pin bosses and extending between said pin bosses in a direction that is generally parallel with said pin bore axis, said skirt portions depending from said upper crown to a lowermost free edge with at least one of said skirt portions having a recess extending upwardly from said lowermost free edge beyond said pin bore axis and completely through from an exterior surface of said skirt portions to an interior surface thereof; and wherein said piston body has only a single one of said recesses and wherein said recess is on said thrust side of said piston body and said anti-thrust side does not have said recess. 2. The monobloc piston of claim 1 wherein said recess extends upwardly from the lowermost free edge into substantially tangent relation with an uppermost portion of the pin bores. 3. The monobloc piston of claim 2 the recess is generally U-shaped.
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Frequently asked questions
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- What does patent US9909526B2 cover?
- A piston for an internal combustion engine has an upper crown portion with a pair of pin bosses depending therefrom, wherein the pin bosses have pin bores axially aligned along a central pin bore axis. A pair of laterally spaced skirt portions are fixedly attached to the pin bosses and depend to a lowermost free edge. At least one of the skirt portions has a recess extending upwardly from the l…
- Who is the assignee on this patent?
- Schneider Norbert, Fed Mogul Llc
- What technology area does this patent fall under?
- Primary CPC classification F02F3/003. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 06 2018 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).