Are there really sliding seals that are good enough to contain a combustion reaction while handling an occasional redlining at 25,000 rpm, and capable of lasting for decades of service?
If so, then the fact that you can have two involute shaped mating surfaces as valves (almost no sliding, just a rolling contact), and a rotor that could be statically and dynamically balanced to almost zero vibration, would be amazing.
If so, then the fact that you can have two involute shaped mating surfaces as valves (almost no sliding, just a rolling contact), and a rotor that could be statically and dynamically balanced to almost zero vibration, would be amazing.