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Both sides are exhaust...correct. The force from the gas expansion seems to push off the rotor and give the push to keep the spin going.
I wish I knew what the ignition source is... a constant spark fixed to the wall? What kind of tolerances are between the rotors and the outside walls, that prevent gas blow-by? Is there room for more efficiencies with rotor shape changes, exhaust outlet configurations, inlet directional vanes, timing changes by moveable fixed walls/ignition timing, etc.? Does the inlet fuel/air charge A/F ratio need to be precise or a wider range than an ICE? Carbureted or fuel injected into the air stream? ECU control with O2 sensor feedback loop?
What RPM does the turbine need to spin before fuel is introduced and ignited? What is the RPM range?
Fuel volume per KWh of electricity generated would be nice to know, too....to get a handle on fuel costs vice ICE generation for range extender operation.
So much potential, so few questions answered!
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