US1499067A - Vacuum-feed tank for carburetors - Google Patents

Description

June 24 1924.

.D. S. MARIA .VACUUMFEED TANK FOR CARBURETORS Filed March 20.

1923 '2 Sham-Sheet 1 June 24,1924. 1,499,067

' D. s. MARIA VACUUM FEED TANK FOR CARBURETORS Filed March 20. 1923 2 Sheets-Sheet 2 @MMMM INVENTOR.

MAM

ATTORNEY Patented June 24, 1924.

' rare? DANIEL SANTA IVIARIA, OF TOPANGA, CALIFORNIA, ASSIG-NOR OF ONE-HALF TO E. I; 5 GROOK, OF LOS ANGELES, CALIFORNIA.

VACUUM-FEED TANK FOR CARBURETORS.

I Application filed March 20, 1923. Serial No. 626,817.

To aZZ whom it may 00mm:

Be it known that I, DANIEL SANTA MARIA, a citizen of the United States of America, a resident of Topanga, in the county of Los Angeles, State of California, have invented a new and useful Improvement in. Vacuum- Feed Tanks for Carburetors, of which the following, when read with reference to the accompanying drawings, is such a full, clear, and exact specification embodying the invention in its preferred form as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to an improvement in vacuum feed tanks for carburetors of an internal combustion engine, and hasfor one of its objectsto reduce the number of moving parts to the minimum and thereby increase its simplicity, durability and certainty of operation.

Another object is to provide a vacuum tankfeed control system such as will bepositive in its actuations, thus rendering certain the results attained thereby Without theuse of levers or pivotating points or connections likely to get out of order by breakage due to sudden jars or vibrations incident to road shocks and the like, when used on an automobile. Another object is to provide a means whereby the flow of gas to the carburetor will be continuous when'used in conjunction with the other mechanism of my vacuum tank feed. v a V w Another object is to provide a typeof control for the vacuum valve whereby the level of the liquid fuel within the tank will at all .times be maintained within certain maXimum and minimum levels.

Another object is to provide a controlling means or system whereby the liquid fuel will become a weight atthe low level within the supply tank to actuate a valve action so as to cut off the'air supply to the said tank and open a valve to create a vacuum therein so asto suck fuel into the tank from a general reservoir, and when the said; fuel rises to a certain level, ameans will be formed by a float or invertedcup, as the case may be, of actuating a, reverse valve action on the which. it may be continuously supplied to I the carburetor.

Other objects and advantages will be manifest in the following specification of the embodiment of the invention illustrated in the accompanying drawings which form an essential part of this specification show ing the adaptations in its preferred form.

' Figure 1 is a diagrammatical view of the arrangements and connections and a crosssectional view of the vacuum feed tank.

Figure 2 is an enlarged detailed view of the valve.

Figure 3 is an enlarged perspective view of the float or inverted cup.

Figure 4 is a diagrammatical view showing the adaptation of the invention to an internal combustion engine of an automobile. Of course it will be understood thatno particular type of internal combustion engine is contemplated, since it is equally adaptable to all types of internal combustion engines and the accompanying drawings show the adaptation of the same, for thepurpose of illustration. It is not my desire to be confined to the particular form of adaptation, since this adaptation is used for the purpose of illustrating the invention in its preferred form.

i Incarrying out. my invention, cylindrical tank 1, shown in Figures 1 and 4 is provided. This tankprimarily consists of two compartments A and B. The A compartment is subject to suction produced from manifold 2, such suction being communicated through pipe-connection 3 to valve opening 4-, as shown in Figure 1.. ,Needle valve 5 is connected with plate 6, as showni-n Figure 1. Also connected to plate 6 is poppet valve 7, the said needle valve being so arranged with respect to plate 6 and poppet valve that said needle valve is opened as poppet valve 7. is closed and, reversely, as poppet valve 7 is opened, needle valve is closed. Plate6 is rigidly held to rod 8 androd 8 is rigidly attached to ribbon spring 9 which is held to the frame work of vacuum tank 1 by means of rivets 10, as shown in Figure 1. On the lower end of rod 8, washer 11 is rigidly at tached. Cup 12 and inverted cup 13 are rigidly held upon rod 14 and are arranged to reciprocate within the vacuum tank compartment A upon ribbon springs 15 and 16 as shown in Figure 1. These ribbon springs are rigidly held to frames 17 and 18 by means of suitable screws or bolts 19 and 20.

Compartments A and B of the vacuum tank are separated by means of partition 21. Located within this partition is suitable openings within which tube 22 is arranged, shown in Figure 1, and in enlarged detailed view in Figure 2, the said tube depending from such partition 21, as shown. Within this tube 22, as shown, check valves 23 are arranged so as to freely permit the downward flow of gasoline G from compartment A to compartment B, as can be readily understood, but will not, by reason of said check valves 23, permit the gasoline G to be sucked upinto compartment A by any vacuum which may be created therein, as can be readily understood. From compartment B gasoline may be permitted to flow through tube 24 to carburetor 25 attached to intake manifold by means of suitable screws or bolts 26.

Tube 27, attached to main tank 28, is

connected with the vacuum tank, as shown in Figure 1.

2 Now in operation it will be understood that when the engine is started, a certain amount of vacuity is created in intake manifold 2, the suction produced within the said manifold being communicated, through tube 3, to compartment A when the air valve 9, as shown in Figure 1, is closed. This vacuity is, in turn, through compartment A, transmitted through tube 27 to tank 28 thus inducing gasoline G to flow upwardly through said tube and into compartment A, thus continuing to fill said compartment A as well as cup 12 and continuing to fill same until the buoyancy created by inverted cup or float 13, when the gasoline line gets to dotted line 29, at which time, this buoyancy will cause suf ficient upward pressure to be exerted on rod 14 and on ribbon springs 15 and 16 that the same will quickly flop upward to the position shown by dotted lines bearing the same numbers, The upper end of rod 14 is yokeshaped, as shown in detail in Figure 3, so as to engage and exert a pressure on ribbon spring 9, attached to rod 8 carrying plate 6 and needle valve 5 and poppet valve 7, as shown, thus causing the said plate 6. to be elevated, and thus closing needle valve and opening the air poppet valve so as to to carburetor 25, as can be readily understood by reference to Figure 1. It will also be understood that when a suflicient vacuity is created in compartment A, the said valves 23 will be automatically closed by the suction induced from compartment A, through tube 22, but nevertheless, air through tube 29, as shown in Figure 1, is permitted to flow freely therethrough, and thus this air'has ingress and egress to and from the said compartment B so as to permit a continuous flow of gasoline down through pipe 24 to carburetor 25, as can be readily understood by reference to Figure 1.

Of course, it will be understood, that various changes may be made in the arrangement, association and collocation of parts without departing from the spirit of this in vention.

Having thus described my invention in its preferred form, what I claim and for which I desire to secure Letters Patent are as follows In a system of vacuum tank feed for carburetors, the combination of; a tank; a tube leading from the said tank to the manifold; a needle valve arranged within the said tank in operative relation to the open ing of the said tube, the said needle valve being connected to a plate; a poppet valve connected to the said plate, the said poppet valve being operatively arranged to open and close an air vent leading to the said tank, the said poppet valve and the said needle valve being so arranged on the said plate and with respect to the said openings that when the needle valve is closed the poppet valve is open and, conversely, when the poppet valve is closed the needle valve is open; a rod supporting the said plate; ribbon springs attached to the inner walls of the said tank supporting the said rod; a cup and an inverted cup attached to the said rod, the said cup forming means, when filled with liquid, of inducing a downward movement of the said springs, and the inverted cup forming means of inducing the upward movement of the said springs; a partition in the said tank a tube arranged in an opening in the said partition; check of the aforesaid tank; and a supply tube leading from the said compartment to a carburetor, substantially as described. 1

In testimony whereof I have signed my name to this specification.

DANIEL SANTA MARIA.

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