Related to the crankshaft, have you had a chance to read the details in the web site's pdf file? Yeah, agreed, toroidal chambers would be a bear. However the ring gears are contained within the same unitized structure as the pistons, while being isolated at the same time with continuous rings...
I've just been studying a rather fantastic engine described at http://www.pvengine.com, and the basic concept seems OK. However, I am curious about some of the statements. My main question is about the possibility of such an engine being able to contain the pressures of combustion. It is easy to...