Wasn't it you years ago that had a thread about the Cyclone engine? Or at least we talked about it -I must be wrong though, since nobody has tried to do it for the past 97 years.
https://cyclonepower.com/ Since it's not an internal combustion engine ,burning gasoline or diesel doesn't produce the bad stuff or not as much as in an ICE. And since it doesn't use a boiler but does use a flash steam generator instead, no worries about a stationary engineer license to drive it. Because there is no water in a boiler there is no risk of an explosion. It's the incompressibility of water that causes boiler explosions.