Mr. Roy J. Meyers invented a motor vehicle running on compressed air. Coincidentally it was a radial engine. According to the advantages it mentions, it did not require refrigeration, carburetion or ignition.

-The car in question stored the necessary pressure in compressed air bottles to reach the next charging point. This limited it to terrestrial use. But as specified, he studied other pressure generation systems for his engine.

-We remember the Vuia (see) with Serpollet engine.

“Radial engine with compressed air bottles” (PiP)