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Old 24-12-2013, 09:53 AM   #2
XR Martin
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Join Date: Dec 2004
Location: Canberra Region
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Default Re: Aussie invention eliminates piston rings

Piston rings are not only there to provide a seal, but they also scrape the oil back down the cylinder walls.
But their design is frictionless, and thus not oil is required in the cylinders; so somehow they are going to have to seal the cylinders to stop oil getting in there.
Not only that, im not sure what their solution is to stop the cylinder walls from being sooted/carboned up over time.

But sounds like a decent leap forward if they can get it to work in the real World.
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