Looks like a compressor a tank and a power producing 2 stroke. couldn't you replace or add to the compression side with a super charger or a turbo charger. What happens it the tank of compressed fuel and air is compromised in an accident?
Empty, I agree. I too, do not see the sense in the proposed design.
Fly GT40 I thought of the crashworthiness of the big compressed gas cylinder as well, but I believe it would only contain air not an air/fuel mixture. Most assuredly still a significant hazard. I would think this engine design would use the now more accepted and advanced direct injection process to deliver the fuel into the combustion chamber.
They made a big deal of the after TDC combustion which infers high combustion ignition process and thus very high combustion pressures. In a regular IC engine the pressure in the cylinder builds as the piston is upstroke compressing the air/fuel mixture and the spark is timed before TDC to give the flame front time to propagate away from the sparkplug further building combustion pressure which should peak just after the piston rolls over TDC and is on the downstroke.
IMO the engine is certainly NOT less complex, you now have two pistons, pins, rings, rods, bearings etc to get one power impulse to the crank and all the attending friction of the "compression" cylinder as additional parasitic loss. Just up the turbo/super charger pressure if you want higher pressure. Seems much simpler way to go.
