US1967619A - Carburetor - Google Patents

Description

July 24, 1934.

c. I. JUSTHElM GARBURETOR Filed July 20, 1933 d/ararzce .Z JLJIWe/m azlw Patented July 24, 1934 UNITED STATES PATENT OFFICE 1,967,619 omuaa'ron Clarence I. Justheim, Salt Lake City, Utah Application July 20, 1933, Serial No. 681,394

11 Claims.

My invention relates to suction devices for internal combustion engines and more particularly to devices for more completely carbureting the fuel before it is introduced into the cylinders of the engine. v

A further object is to provide a device which may be used with any suction device or carburetor on an internal combustion engine to move completely carburate the fuel, mixing it with suflicient air, or aerated fuel, or direct fuel, to provide a mixture for the engine which will be completely carbureted for consumption therein. A still further object is to provide a suction device in the form of an annular ring surrounding the suction device used on the engine and in open connection therewith by radial ports, the annular ring beingplaced at some advantageous position on the suction device or carburetor so as to have suflicient suction created in the ring to draw fuel thereinto from a fuel supply or to draw the correct amount of air as fuel mixture thereinto, depending upon the hook up made and amount of fuel and air already mixed in the carburetor or suction device.

A still further object is to provide a controlled annular ring controlled either by suction or external means and which will draw suflicient fuel, or vapors, or air into the suction device to create a balanced fuel for the engine.

A still further object is to provide an annular chamber surrounding either a suction device or the intake manifold of an internal combustion engine with ports leading fromthe annular ring into the manifold or suction device to draw fuel or air or fuel vapors into the device with the carburetor and the intake manifold of an internal combustion engine to provide additional air for the fuel or to provide additional air and fuel to the already carbureted fuel passing into the intake manifold of the engine.

These objects I accomplish with the device illustrated in the accompanying drawing in which similar numerals and letters of reference indicate like parts throughout the several views and as described in the specification -;forming a part of this application and pointed out in the appended claims. 1

In the drawing in which I have shown the device,

Figure 1 is a diagrammatic view' of one of my devices in use on one of my suction devices,

as shown in my patent applications of an earlier date.

Figure 2 is a vertical section of one of my devices in place between the intake manifold of an internal combustion engine and the portion of any carburetor which is attached thereto.

Figure 3 is a cross section of one form of making the annular ring with means to control the ports into the interior.

Figure 4 is a cross section of an annular ring divided into two compartments with separate springs to control the ports in each compartment.

Figure 5 is a cross section of an annular ring with a jet shown in one compartment and a baflle partition in the other portion with spring means to control the ports.

Figure 6 is a cross section of an annular ring having an annular partition or baflie therein with valves to control the ports therethrough both insideand outside the partition.

Figure '7 is a cross section of an annular ring or chamber divided into several compartments each having the ports controlled except one has an uncontrolled port for idling fuel, high speed fuel or other suitable purposes where it is not desired to control the port by the suction of the device.

Figure 8 is a cross section of an annular ring or chamber divided into separate compartments with one controlled by suction from one of the other compartments.

In the drawing I have shown the device as an annular chamber or ring A formed in an annular casting B. The float chamber is shown as C, with the lead in pipe showing into the fuel therein. 'JI'he casting B may be made in two parts 1 and 2 secured together by bolts 3 and 4 as shown in Figure 3 andFigure 5 of the v drawing or may be made of two rings 6 and 7 secured together by end plates 8 and 9 as shown in Figure 2 of the drawing.

The type of device shown in Figure 3 is made with an inlet pipe 10 to carry fuel or air into the annular chamber A and ports 11 carry the fuel or air into the interior of the suction device with which the device is being used. Spring valves 13 and 14 control the flow of such fuel or air through the ports commensurately with the amount of suction through the device and in cases of great suction through the center bore 15 of the ring the spring will close ofi all of the ports allowing only the fuel in case pipe 10 is used to supply fuel from the mixing device or carburetor to enter the engine as would no be necessary for high speeds or extreme power requirements.

In Figure 4 I have shown the annular ring divided into two sections 16 and 1'7 with ports 18 through the inner wall of the ring into the bore 19 and having springs 20 and 21 to control the ports. Two inlet pipes 22 and 23 provide air'or fuel or a combination of both for the device.

In Figure 5 I have shown the ring divided into two sections 25 and 26 with a semi-circular baffle 27 in the section 26 said bafile carrying spring valves 28 and 29 thereon, one of which is on the inside of the baffle and the other on the outside, said springs to control ports 30 through the baflle. The spring 28 to close as the suction increases through the device and. the spring 29 to open as the suction increases. An idling port 30a may be provided through the bafile 27 and is not controlled by any spring or valve.

Ports 31 connect the interior bore 32 of the ring with the chamber or section 26. The section 25 is provided with ports 33 therethrough, one of which ports carrying a jet 34 screwed thereinto with the jet extending into the bore 32 of the device and with a spring control 35 to control the fuel or air passing both through the jet and the ports 33.

Inlet pipes 36 and 3'7 provide the ring or chamber with fuel, or air, or fuel and air, as necessary.

In Figure 6, I have shown the annular chamber having an annular partition or baflie 39 with ports 39a through the partition and ports 40 into the interior bore of the chamber so that suction through the bore will draw through the two sets of ports. Along the inner side of the partition covering some of the ports I provide a spring valve 41, said valve to open when suction through the ports 40 is increased, and along the outside of the partition I provide a similar spring valve 42 to shut 01f some of the ports 39a when the suction through the device is increased. The ports 39a may be made in different sizes and the two types of controls both internaland external used to create the exact proportions of air and fuel desired. Inlet pipes 43 may be provided to introduce either fuel, or air, or fuel and air, as desired.

In Figure 7 I have shown the annular chamber divided into separate chambers 45, 46 and 4'7. The chamber 45 has an inlet pipe 48 therein to provide fuel therefor and is uncontrolled. The chamber 46 has an inlet pipe 46a to provide either fuel or air or both as desired. A controlled valve 49 in the chamber 46 controls ports 50 into the interior of the bore of the ring. The ,control for the valve may be a set screw 51 as shown having adjustment nuts 52 and 53 mounted thereon as desired to adjust the amount of closure or the tension of the valve as necessary. In the chamber 47 I provide a semi-circular partition 55 having ports 56 therethrough, said ports being controlled by a spring valve 57. An inlet pipe 58 provides fuel, or air or both for this chamber as necessary.

In Figure 8 I have shown the annular chamber divided into three chambers 59, 60 and 61, with only two lead in pipes shown as 62 and 63 leading into the chambers 59 and 60 and the fuel or air for the chamber 61 is drawn from the chamber 59 through a port 64 therein, controlled by a spring valve 65. This valve may be mounted on either side of the partition depending upon the work desired or required thereof, the suction to either close or open the port'as necessary. Ports 66 are bored through the inner wall of the chamber 61 and a valve 67 controls the flow of fuel or air therethrough with the valve provided with a smaller port 68 therethrough in alignment with one of the ports 66 to control or partially control the passage through this port. Ports 70 connect the bore of the annular chamber with the chamber 60 and a valve 71 controls the flow of fuel therethrough. Idling port 73 is provided in the chamber 59 to draw uncontrolled fuel into the bore of the device as necessary.

As shown in the drawing in Figure 1, I have shown the lead line from the fuel leading down into the float chamber C, into the fuel therein to supply fuel into the annular chamber, which fuel is then drawn into the suction device for use. The port for air is shown on the opposite side to allow suflicient air to enter the chamber as desired.

In the other views I have shown either a single line to lead fuel, or air or fuel and air already combined or two or three lines to lead in fuel in the mixed form or fuel in the form of air. This fuel air may be mixed with the fuel already passing through the carburetor or suction device or may be mixed with fuel in the annular ring as the case may be to provide the proper fuel mixture for the engine.

The suction through the suction device draws through the ports in the annular chamber and the ports are closed or opened by the force of the suction,-depending upon the positioning of the valves for closing the. ports. The tension of the springs may be difierent or may be varied and the size of the ports may be varied to give any desired combination of either fuel in the raw form, mixed fuel, or fuel air.

The operation of the springs as shown in Figme 6 is such that as one spring closes the other spring opens and in that manner the ports may be controlled to any desired degree.

Having thus described my invention I desire to secure by Letters Patent and claim:

1. In a device for use on suction devices of the class described, the combination of an annular ring surrounding a suction device with ports from the ring into the suction device; partitions dividing said. ring into separate chambers; lead lines from each chamber to a source of fuel supply; a semi-circular baflie dividing one of said compartments with ports through said bafile; and valves to control such ports as desired. t

2. In a device for use on carburetion suction devices, the combination of a suction device; an annular hollow ring formed therearound; partitions dividing the annular ring into separate chambers with one chamber having a port to connect with the interior of the suction device; means to control ports connecting the interior of two such chambers with the suction device; a baflle carried in one of the chambers having ports therethrough; and spring valves to control some of the ports in said battle as desired.

3. In a device of the class described, the combination of a suction device: an annular ring formed therearound having the outer wall solid with ports leading from the interior of the annular ring into the bore of the suction device; leaf springs mounted to said annular ring to be drawn over said ports to control the suction therethrough; and a lead line into said annular ring to introduce fuel thereinto.

4. In a device for use on carburetion devices, the combination of an annular hollow ring to be placed around and concentric with a carburetion suction device to form an annular chamber with ports leading from the interior of said annular chamber into the suction device; and suction controlled means to control part of said ports as desired.

5. In a device of the class described, the combination of a hollow ring to form a chamber concentric with a suction device for an internal combustion engine and means to introduce fuel into said chamber; an annular baille dividing the chamber into two compartments with ports through the baffle; means to control said ports depending upon the suction therethrough; ports into the bore of the hollow ring from the inner compartment to allow suction to draw fuel therethrough from said hollow ring.

6. In a device for use on 'carburetion devices, the combination of a closed hollow annular ring surrounding a portion of the suction device and mounted above the fuel level having ports in open connection with the bore of said suction device; means to introduce fuel into said ring; and semi-circular spring valves mounted adjacent said ports within said annular ring to close said ports when the suction through the suction device is increased sumcient to flex said spring valves to the closed position.

7. In a device of the class described, the com bination of a closed hollow annular ring above the fuel level; means to introduce fuel into said ring; ports leading from the ring into the bore of the suction device of an internal combustion engine; springs to control the suction through some of said ports with other ports uncontrolled, the suction through the device to close of! some of said ports commensurately with the speed of rotation of the engine, depending upon th flexing of said springs.

8. In a device for use on carburetor suction devices, the combination of an annular ring mounted concentric with said suction device and above the fuel level thereof with ports leading into the suction device from said ring; spring valves to control the suction through some of said ports with other ports uncontrolled, the suction through the device to close off some of said ports commensurately with the suction through the carburetor the closing of the ports depending upon the flexing of said spring valves.-

9. In a device of the class described, the combination of an annular ring to surround the intake manifold of an internal combustion engine having ports leading from the interior thereof into'the bore of the suction device; an annular ported bame formed within said ring dividing the ring into two annular chambers with the inner chamber in connection with the bore of the suction device through said ports; and springs mounted onto said battle to control the suction through the ports therein said springs being adapted to close off some or all of said ports depending upon the amount of suction created in the inner annular chamber.

10. In a device of the class described, the combination of an annular ring formed of an inner ring and an outer ring secured by top and bottom annular plates with ports through the inner ring; a spring carried on said inner ring to, close said ports when suction through the bore of the inner ring is increased; and means to introduce fuel through the wall of the outer ring.

11. In a suction device for use in conjunction with carburetors for internal combustion engines, the combination of an annular hollow ring carried concentric with the bore of said carburetor and spaced above the fuel level thereof; partitions in said ring to divide it into separate chambers with ports into the bore of the entire hollow ring to communicate with the bore of the carburetor; a semi-circular partition in one of said chambers with ports through said partition; a float chamber. means to introduce fuel into the hollow ring from said float chamber; and a spring valve to control ports through said semi-circular partition commensurate with the suction through the carburetor.

CLARENCE I. JUS'I'HEIM.

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