Henry Parohl, NY, miniaturized almost every configuration of internal combustion engine that was invented, including this Wankel (Mazda type) rotary engine. It is a two-cycle engine that burns gasoline with oil mixed in for lubrication. The tank sits above the engine and the fuel is gravity fed into carburetor’s float bowl (cylindrical tank next to the carburetor. The float bowl retains a steady level of fuel and maintains constant pressure for the fuel available to the carburetor. The spark for the ignition is provided by an external battery and coil. Made in the 1960’s, this engine is 6”-long, 7”-wide, and 6”-high.