Pistons & Rings / 5 posts found

Understanding Tribology

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The tribologists at Total Seal use a tool called the Stribeck curve to engineer low friction piston rings. The Stribeck curve utilizes the formula Viscosity x Speed / Load to generate the lubricant film parameters.

Your Oil’s Best Friend – The Piston Ring

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Have you ever wondered why automatic transmission fluid is “fill-for-life” and motor still has to be changed every 5,000 to 10,000 miles? The simple answer is contamination...

Understanding the Rod Length and Pin Height Connection

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The relationship between connecting rod length, piston compression height and compression ratio is often misunderstood, largely due to the misuse of the term “compression”. In all honesty it probably shouldn’t be applied to piston terminology at all except as it relates to the shape of the piston crown surface....
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Are Your Pistons Round?

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A piston’s operating environment strongly influences its overall shape and that form becomes complex when the piston is asked to perform multiple tasks while enduring a high order of abuse in performance applications. The piston’s job is to capture cylinder pressure via ring sealing...

Profiling JE Pistons for Maximum Performance

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There's a lot that goes into piston design and one of the most important aspects is the skirt design. Less drag created by the skirt in the bore equals more power. Take a look at how JE continues testing different skirt profiles for maximum power and performance..