Not sure if this is a piss take or not but... Your re-inventing the rotary with a round impeller and a tiny combustion chamber? How will you seal the gas in the pockets on the piston? You need to get the gas to push the piston, the only way to it is to contain its expansion and get it to push the "piston" around. You don't need a special throttle system, you need the right mixture of fuel and air which a carb or EFI will do.
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