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Everything else / Re: Lister vs Petter
« on: April 30, 2010, 01:09:15 AM »
I didn't have any particular types in mind, so I'm probably asking the question badly. The Otto cycle engine uses a spark to ignite a fuel/air mixture in a 4 cycle process. To circumvent the patents James Atkinson invented the Atkinson Cycle Engine, which is also a 4 cycle. Is there a similar relationship involving the development of Petter engines?