ducati 6-stroke isovolumetric engine with revolving con-rod and half-floating piston.
http://www.ducati.com/bikes/techcafe.jhtml?detail=article&value=theory&part=general&artID=11
insteresting
I just read the article. Sounds really cool. I hope the designs makes it to the main stream.
the rest of the world will see it long before we do.