Gasoline economizing attachment device for internal combustion engines

A gasoline economizing attachment device for internal combustion engines comprising, in combination, a substantially flat housing member adapted for insertion between the exit port of a gasoline carburetor and the intake port of the intake manifold of a gasoline combustion engine, said housing member having a central through opening for coaxial connection between the carburetor and the intake manifold for carbureted fuel flow therethrough, a raw gasoline collection recess about the inner periphery of said housing through opening, flow path communicating means between said annular recess and a plurality of openings below said annular recess, said flow path communicating means comprising a first plurality of bores in said housing and communicating between said annular recess and a through bore in said housing, a second plurality of bores opening at one end into said central housing through opening below said annular housing recess, said flow path communicating means further including an external length of tubing communicating between one end of said through bore and the inner ends of said second plurality of bores, said flow path communicating means further comprising a vaporizing chamber in said external length of tubing adapted to collect excess raw gasoline, and a nozzle within said vaporizing chamber directing a stream of the vacuum-moved air against the surface of said excess collected raw gasoline for inducing the vaporization thereof in said flow path communicating means, and means controlling the volume of air being drawn into said through bore at the other end thereof under the influence of vacuum applied at said central through opening in said housing member during the operation of the internal combustion engine, whereby raw gasoline collected in said annular recess will be admixed with air in said flow path communicating means for the vaporization thereof and reintroduction as gaseous fuel through said plurality of openings.