Arnold,
I would say, after spending 10 mins looking at it, it seems logical. At the end of the day its still an ICE. Suck push bang blow. LOL
Lower EGT make sense do to not compressing combusting gases.
Still needs all of the standard ICE support equipment. Starter, oil pump, radiator, transmission etc.
Block could be cast so that's a plus. I think in theory it could make a really good aircraft engine. Better thermal efficiency and higher compression.
Just my quick thoughts. How bout yours?
FrazDog
There are no rules here! We are trying to accomplish something! "Thomas Edison"