US3227427A - Carburetor system - Google Patents

Description

Jan. 4, 1966 w, WELLS T 3,227,427

CARBURETOR SYSTEM Filed Feb. 20, 1963 GAS TANK will,

INVENTORS FRANCIS W. WELLS and Y ALBERT E. PHILLIPS ATTORNEY United States Patent 3,227,427 CARBURETOR SYSTEM Francis W. Wells, Pittsburgh, and Albert E. Phillips, McKees Rocks, Pa., assignors of thirty percent to William J. Ruarro, Pittsburgh, Pa.

Filed Feb. 20, 1963, Ser. No. 259,946 Claims. (Cl. 261-20) This invention relates to a carburetor system for increasing mileage of an automobile, truck or other gasengine driven conveyance.

Various attempts have been made in the past to increase the elficiency of gasoline engines for vehicles, but these have not been altogether successful or widely adopted since they require complicating the carburetor construction and greatly increasing the expense thereof as Well as providing only a very small increase in elficiency that does not warrant the increased cost of the equipment.

Another disadvantage of prior systems involving atomizing gasoline in the carburetor is that droplets of gasoline pass through without complete atomization, therefore not providing optimum efficiency.

An object of our invention is to provide a system for increasing gas mileage for an automobile and which is devoid of the above named disadvantages.

A more specific object of our invention is to provide, between the fuel pump and existing carburetor of an automobile, a loop circuit including an atomizing chamber for atomizing gasoline before entering the carburetor and which recirculates droplets which are not sufficiently atomized through the loop circuit so as to very greatly increase the gasoline mileage or efficiency of the vehicle.

Another object of the invention is to considerably reduce harmful exhaust fumes from the engine by reducing the amount of raw gasoline injected therein, thereby minimizing or substantially avoiding air pollution which has plagued many areas of the country.

Other objects and advantages will become more apparent from a study of the following description taken with the accompanying drawing wherein:

FIG. 1 shows a gasoline atomizing system for an automobile carburetor embodying the principles of our invention; and,

FIG. 2 is an enlarged, fragmentary, vertical cross-sectional view of a modification of the atomizing nozzle inside the atomizing chamber 6 of FIG. 1.

Referring more particularly to FIG. 1 of the drawing, numeral 1 denotes a fuel pump connected by pipe 3 and a standard T 4 to pipe 2 leading to a gas tank (not shown). The delivery connection end of the fuel pump 1 leads to a conduit 5 connected to a nozzle 16. Nozzle 16 has a tapered end 17 (see FIG. 2) for squirting, under high velocity, a stream of gasoline onto a spherical segment 7 which causes the particles to deflect and atomize, as indicated by the arrows. Most of the atomized gasoline is sucked into the upper portion 8 of the atomizing chamber 6 and will be drawn through conduit 9 into a vacuum portion of carburetor 10 connected to the engine (not shown).

However, some of the gasoline squirted by nozzle 16 and atomized by the spherical segment 7 will not be sufficiently small in size so as to be drawn upwardly, therefore, will drain downwardly through drain-back line or conduit 12, particularly as a consequence of suction therein created by pump 1, through T 4 and fuel pump 1, thence again flowing through conduit 5 to nozzle 16, and thus is recirculated. So long as the particle size of the gasoline is too large to be drawn upwardly through conduit 9, the droplets will be recirculated over and over again through pipe 12, T 4 and conduit 5 until they atomize sufiiciently to be drawn upwardly into the carburetor 10.

FIG. 1 shows a nozzle 16 with a tapered end portion, shaped somewhat as shown in FIG. 2, but without a needle valve 20. Such arrangement is for the purpose of assuring that the nozzle will always be open and permit at least a predetermined flow of gasoline at all times.

FIG. 2 shows a modification of the nozzle shown in FIG. 1, which comprises the addition of a needle valve 20 having a tapered end 21 which may be adjustably projected into the opening of the nozzle so as to variably restrict the area of the nozzle opening, merely by adjustably turning the knurled head 18 so as to effect greater screwing action at threads 19. It should be noted that even when head 18 is screwed to the limit against nozzle body 13, the end 21 will not completely close the opening at 17. This is to assure that the device will be fool-proof and prevent the possibility of either stopping or unduly restricting the flow of gasoline through the nozzle.

Efficiencies ranging from a 50 percent increase to a percent increase over existing efficiencies have been obtained by the present invention, not only because of the effective atomizing of the gasoline in chamber 6 even before entering the carburetor, but particularly by virtue of recirculation of the heavier particles of the gasoline, over and over again, until completely atomized before conducting them through the carburetor.

Thus it will be seen that we have provided an amazing and almost unbelievable increase in mileage of automobiles by virtue of our novel atomizing system involving thorough atomization and recirculation; furthermore, we have provided an atomizing system that can be added to existing, standard automobile carburetors without the necessity of replacing the carburetor, which system involves relatively simple and inexpensive standard parts; furthermore, we have provided a system for considerably reducing the amount of raw gas injected into the engine to an extent as to sharply reduce and practically eliminate harmful eX- haust fumes that would otherwise contaminate the atmosphere, therefore, solving the air pollution problem existing in many areas.

While we have illustrated and describe-d several embodiments of our invention, it will be understood that these are by way of illustration only, and that various changes and modifications may be made within the contemplation of our invention and within the scope of the following claims.

We claim:

1. A carburetor system for a gasoline engine driven conveyance, comprising, in combination, a complete and independent carburetor for connection to the engine, a separate atomizing chamber disposed at a lower level than said carburetor, a fuel inlet pipe connecting the top portion of said atomizing chamber to a vacuum portion of said carburetor, said atomizing chamber including a nozzle and a confronting surface for deflecting and atomizing gasoline squirted thereon by said nozzle, a drain line leading downwardly from the bottom portion of said atomizing chamber, a source of gasoline located below said atomizing chamber and connected to said drain-line, and a fuel pump serially connected between said drain line and said nozzle so that squirted droplets which are not atomized will drain from the bottom of said chamber through said drain-line and will be recirculated back to the nozzle until effectively atomized, said atomizing chamber being devoid of an air supply.

2. A system as recited in claim 1 together with an adjustable needle in said nozzle for adjustably throttling gasoline flowing through said nozzle.

3. A system as recited in claim 1 wherein said confronting surface is a spherical segment in substantially horizontal alignment with said nozzle substantially centrally of said atomizing chamber.

4. A system as recited in claim 1, together with a needle valve for adjustably throttling the opening of said nozzle and being so arranged that when fully throttled, there is still a predetermined flow of gasoline through said nozzle.

5. A carburetor system for a gasoline engine driven conveyance, comprising, in combination, a complete and independent carburetor for connection to the engine, a separate atomizing chamber disposed at a lower level than said carburetor, a fuel inlet pipe connecting the top portion of said atomizing chamber to a vacuum portion of said carburetor, said atomizing chamber including a nozzle and a confronting arcuate surface for deflecting and atomizing gasoline squirted thereon by said nozzle, a gasoline tank located below said atomizing chamber, a T having one leg connected to said gasoline tank, a drain line connected between the bottom of said atomizing chamber and a second leg of said T, and a fuel pump connected between the third leg of said T and said nozzle for recirculating over and over again squirted droplets in said atomizing chamber which have drained through said drain line, whereby gasoline in said fuel inlet pipe is effectively atomized, said atomizing chamber being devoid of an air supply.

References Cited by the Examiner UNITED STATES PATENTS 6/1908 Durr 26136 1/1911 Heermans. 5/1911 Rush. 5/ 1926 Hendricks.

4/1935 Pogue 26136 2/1955 Featherston 261-23 6/1959 Anderson 123-133 X FOREIGN PATENTS 11/1936 France. 10/1955 France.

1912 Great Britain.

ROBERT F. BURNETT, Primary Examiner.

HARRY B. THORNTON, Examiner. 20 T. R. MILES, Assistant Examiner.

Claims (1)

1. A CARBURETOR SYSTEM FOR A GASOLINE ENGINE DRIVEN CONVEYANCE, COMPRISING, IN COMBINATION, A COMPLETE AND INDEPENDENT CARBURETOR FOR CONNECTION TO THE ENGINE, A SEPARATE ATOMIZING CHAMBER DISPOSED AT A LOWER LEVEL THAN SAID CARBURETOR, A FUEL INLET PIPE CONNECTING THE TOP PORTION OF SAID ATOMIZING CHAMBER TO A VACUUM PORTION OF SAID CARBURETOR, SAID ATOMIZING CHAMBER INCLUDING A NOZZLE AND A CONFRONTING SURFACE FOR DEFLECTING AND ATOMIZING GASOLINE SQUIRTED THEREON BY SAID NOZZLE, A DRAIN LINE LEADING DOWNWARDLY FROM THE BOTTOM PORTION OF SAID ATOMIZING CHAMBER, A SOURCE OF GASOLINE LOCATED BELOW SAID ATOMIZING CHAMBER AND CONNECTED TO SAID DRAIN-LINE, AND A FUEL PUMP SERIALLY CONNECTED BETWEEN SAID DRAIN LINE AND SAID NOZZLE SO THAT SQUIRTED DROPLETS WHICH ARE NOT ATOMIZED WILL DRAIN FROM THE BOTTOM OF SAID CHAMBER THROUGH SAID DRAIN-LINE AND WILL BE RECIRCULATED BACK TO THE NOZZLE UNTIL EFFECTIVELY ATOMIZED, SAID ATOMIZING CHAMBER BEING DEVOID OF AN AIR SUPPLY.

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