Patent US 4,130,099

A gasoline saving device is disclosed for an internal combustion engine having a carburetor housing and a manifold housing, each housing having an internal orifice for passing a gasoline fluid. A substantially flat plate member is adapted for insertion between the carburetor housing and the manifold housing. The plate member comprises at least one aperture having a diameter in accordance with the diameter of the internal orifices of the carburetor housing and the manifold housing. The aperture in the plate member is registered relative to the internal orifices of the carburetor housing and the manifold housing. A plurality of fluid channels extend longitudinally through the plate member for providing fluid communication for an external fluid adjacent the outer surface of the plate member to the aperture in the plate member. A venturi is mounted in proximity to the aperture for drawing the external fluid through the fluid channels into the internal orifice of the manifold housing upon gasoline flow therein to mix the external fluid with the gasoline fluid. The invention may include a first and a second aperture with means for spinning the gasoline fluid in a clockwise direction in the first aperture and for spinning the gasoline fluid in a counterclockwise direction in the second aperture. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.