Abstract: An impeller is secured to one end of a hollow shaft and is positioned within a chamber to which air is supplied. An output line from the chamber is joined with the intake manifold of an engine. The opposite end of the hollow shaft is immersed in fuel. When a vacuum is drawn by the manifold, air flow through the chamber rotates the impeller while fuel is simultaneously drawn through the shaft and discharged into the chamber. The turbulence and agitation of the impeller atomizes the fuel so that an air/fuel mixture is supplied to the manifold through the output line. Pressurized air is applied to the fuel as it rises in the hollow shaft to provide initial fuel atomization.

Abstract: In the device provided, air/fuel mixture for an internal combustion engine passes through a conventional carburetor where vaporized fuel and aspirated liquid fuel droplets are mixed witth the air. The device comprises a conduit for conveying the carbureted mixture from the carburetor to an intake manifold. The conduit has an upper opening and a lower opening. A rotatable turbulence producing means, such as a freely rotatable impeller, is disposed in the conduit near the lower opening. The rotatable means rotates about a vertical axis by passage of the carbureted air/fuel mixture therethrough and turbulence of the mixture is produced. Liquid fuel droplets are engaged by a collector and vaporizing means which is disposed in the conduit near the upper opening and above the rotatable means. The collector and vaporizing means has a substantially enclosed central portion disposed axially above the vertical axis of the rotatable and outer portions slopingly connected to and disposed above the central portion.