Engine intake flow booster

#1. Field Of The Invention

#The invention herein pertains to a device to improve the efficiency and increase the power of an internal combustion engine and particularly to an intake flow booster to improve the performance of the engine at a partial throttle opening.

#2. Description Of The Prior Art And Objectives Of The Invention

#FIG. 1 demonstrates an intake flow booster of the invention for a four barrel carburetor in a side elevational view;

#FIG. 1A shows a cross-sectional view of a manifold tube as seen in FIG. 1 but removed from the manifold plate;

#FIG. 2 demonstrates a top plan view of the invention as shown in FIG. 1;

#The preferred form of the invention is shown in FIGS. 1, 1A and 2 whereby an intake flow booster is configured for a four barrel carburetor. As shown in FIG. 1, the left side manifold tubes have a somewhat shorter length than the right side tubes, to conform to the particular two plane intake manifold used therewith. As shown, the rectangular shaped manifold plate has a depression or well 12, also substantially rectangular shaped which extends across the major portion of the manifold plate approximately 0.5 inches in depth. Well 12 has a greater area through the top of tubes 13, 13' and is wider than the combined tubes. The carburetor which bolts onto the flow booster is therefore spaced approximately one-half inch from the upper manifold tube ends which communicate with the top of the well and extend downwardly for positioning within the intake manifold. As shown in FIG. 1A, the inside walls of the manifold tubes have a somewhat frustro-conical configuration having a diameter reduction of approximately twenty percent and forming a restriction in the tube approximately midway therealong. Thus the fuel/air mixture which exits the carburetor enters the well in the manifold plate of the flow booster where it is directed into one of the four manifold tubes where it then passes into the intake manifold and continues to the combustion chamber of the engine. The preferred embodiment herein describes the intake flow booster as would be used for a four barrel carburetor although a single or other multi-barrel carburetors could be used, other than the four barrel described.

#For a more complete understanding of the invention, turning now to the drawings, intake flow booster 10 configured for a four barrel carburetor of a typical internal combustion engine is shown in FIGS. 1, 2 and 3. In FIG. 1, flow booster 10 includes a thick, rectangular planar manifold plate 11 which defines a rectangular well or depression 12 which is approximately 0.5 inches deep. Plate 12 is approximately 0.75 inches thick and is formed of steel or other suitable materials. In FIG. 2, four manifold tubes 13, 13' communicate at their upper ends 16, 16' with plate well 12 and extend downwardly therefrom. Manifold tubes 13, 13' as shown in FIG. 1 may have different or the same lengths for various intake manifold designs. As seen in FIG. 1A, tube 13 in cross-sectional representation demonstrates a substantially frustro-conical inside wall surface 19 forming a somewhat restricted air passage at approximately the middle of the length of tube 13. The internal passageway 18 is reduced in diameter approximately twenty percent at the middle of tube 13. As further seen, top or upper end 16 and lower or bottom end 17 is flared. It has been found that this particular configuration in conjunction with plate well 12 improves the overall engine performance due to the fuel/air mixture passage therethrough. As would be understood, the invention as illustrated provides a separate engine intake flow booster which is attached to the engine. However, the intake flow booster could be integrally formed with the manifold as part thereof.

#In FIG. 3 a schematic intake manifold 14 is shown with two barrel carburetor 15 and having intake flow booster 24 therebetween. Manifold tubes 25, 25' extend into manifold 14 as earlier discussed. Manifold 14 comprises a single plane manifold, thus manifold tubes 25, 25' have the same length.