Algodoo

The efficiency is gonna be better in the piston atkinson because of the same reason wankels suck; the combustion chamber is all weird and elongated. Plus all those parts and points to seal is gonna cause leakage and excessive wear and friction, resulting in even less efficiency...

Oh well, I like the scene. I was gonna rate 5 but I'll spare you by just not rating

Nicely done. Good design and explanation.

Thanks s_noonan! And pnvv, wankels suck cause they need seals on the tips of the rotor, and the rotor can do a force on the chamber, but here you have a lot more place to apply seals and they wouldn't be as necessary as in a wankel as every piece has a lot of contact on the other surfaces...
But friction might be a problem and i'm not sure how they accomplish lubrication here. they did a demonstration engine on an university and it somewhat worked tho

I think the way wankels are lubicated results in them burning their own oil, which is probabbly what would happen here.

they aren't lubricated on the combustion chamber at all

esto se le considera un "semi-diesel" o un diesel? sea como sea es un buen motor