A small 2″ diameter fuel tank contains a propane mixture to fuel the boiler. Two Regner 40451 Piccolo steam engines make up the drive train, with mechanical linkages controlled by servos to ...

there also will be a connection for the vapor hose at either the top or bottom of the tank. There’s one exception to the sealed fuel cap on some small engines, though. In those cases ...

A challenge for manufacturers is how to compress the gas into tanks small enough to fit in a compact ... Being electric, the engine and the car as a whole are quiet, with none of the vibration ...