[AndrewJ]

looks like there's two sets of 4 "pistons" and they each advance about 1/8th of a revolution till it nearly hits the other set, then setting the other into motion, constantly leapfrogging eachother 1/8th rpm at a time.
What I'm wondering is how that engine can cope with cooling if it's constantly firing off 32 times per revolution. That's a lot of heat for a small package.
That and in order for the "leapfrogging" to take place, the piston sets would have to have one hell of a strong ratchet system, one that could handle the claimed 850 pound-feet of torque. Not only that but it would have to handle it quickly as one set of pistons would finish the "power stroke" and immediately slam to a stop and cope with the torque of the other set of pistons firing their "power stroke"

Looks like the valves would be an easy matter, just put them in the side of the cylinder wall, like a Wankel.