[dcb]

ignoring the shockwave bit, it seems very two stroke-esque, the intake and exhaust ports are open at the same time. *maybe* then can get it to run cleanly at a very specific rpm/load.

But, then again, this is basically a turbine, the only torque being generated seems to be from the gasses escaping out the exhaust port, and what keeps them from blowing back up the intake instead is beyond me at the moment, or why it should be better than a normal turbine with a distinct combustion section.