Editing Compressed-air car (section)

===Engines for compressed air===
[[File:Di Pietro Engine Animation2.gif|thumb|Dipietro eccentric shaft with a rotary vane air engine{{clarify|how is this supposed to work?|date=August 2023}}]]

There have been several dubious claims with undisclosed information. The "di pietro" engine has been tested partially with [[CAD]] and [[finite element analysis]] programs. The results were published by [[Jarosław Zwierzchowski]] from [[Lodz University of Technology]] in 2017.<ref>{{cite web|url=https://www.researchgate.net/publication/316884692 |title=Design type air engine Di Pietro |date=2017-07-18 |accessdate=2017-10-13}}</ref> This motor is an eccentric shaft vane motor that uses low air pressure.{{clarify|How is this supposed to work?|date=August 2023}}