US2052258A - Gas mixer - Google Patents

Description

Aug. 25, 1936.. W. J. STONER GAS MIXER Filed Jul 7 1934 M OHaI Patented Aug. 25, 1936 GAS MIXER William J. Stoner, Oklahoma City, Okla. 'Application July 7, 1934, Serial No. 734,153 2 1 Claim.

This invention relates to improvements in attachmentsfor internal combustion engines and more particularly to automobile engines and pertains particularly to a fuel saving device.

The primary object ofthe present invention is to provide an improved gas mixer adapted to be attached to the intake manifold of an internal the fuel charge and the amount of fuel sucked into the engine cylinders through the carbureter will be proportionately decreased.

Another object of the invention is to provide, in ajg'as 'mixenfor use in connection with an eiigine 'manifold, means for more thoroughly.

combiningjgaseous fuel with introduced air so that-the c ombustiono'f the fuel gas will be thorough and instantaneously completed.

Stillanother, object of the invention is to provide'a device of the character described which, when set in one position, will effectually prevent the starting up of the engine due to the dilution of the fuel charge by the additionally introduced air, thereby operating as a theft preventing device, when left in such position.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawing forming part of this specification, with the understanding, however, that the invention is not confined to any strict conformity with the showing of the drawing but may be changed or modified so long as such changes or modifications mark no material departure from the salient features of the invention as expressed in the appended claim.

In the drawing:

Fig. 1 is a view in elevation illustrating the device embodying the present invention, applied to the intake of an internal combustion engine and showing the control means for the device.

Fig. 2 is a sectional view taken substantially on the line 2-2 of Fig. 1.

Fig. 3 is a vertical sectional View through the mixer element through which the fuel charge is caused to pass before reaching the intake manifold.

Referring to the drawing wherein like numerals of reference designate corresponding parts throughout the several views, the numeral indicates a portion of the intake manifold of an internal combustion engine to which leads the usual vertical pipe 2 from the carbureter, a portion of which is shown and indicated by the numeral 3.

The present invention comprises two units, one of which is indicated generally by the numeral 4, 5 while the other is indicated as a whole by the numeral 5. The unit tie in the form of an oval plate 6, through which an aperture 1 is formed and in which aperture, a plurality of blades 8 are arranged at an oblique angle to the top and bot- 10 tom faces of the plate. These blades radiate from a common hub at the center of the aperture 1, as shown in Fig. 3, and at their outer ends, join the wall of this aperture, so that after the plate has been secured in position between the car- 15 bureter 3 andthe lower endof the pipe 2 in the manner illustrated in Fig, 1, the fuel gases passing to the intake manifold through the carbureter will be forced to pass between the blades 8 and will have a'whirling motion imparted thereto.

The unit 5 comprises a cross-shaped tubular body having the exteriorly threaded alinedarms 9 and I0 and theright angularly extending alined arms H and I2. The arm 9 is threaded into a tapped opening formed in the pipe 2 slightly for- 25 wardly of the longitudinal center of the same, as illustrated in Fig. 2, while the threaded end of the arm H] which alines with the arm 9 has threadably connected therewith the narrower or restricted end of a funnel-shaped body it, the outer end of which is covered by the perforated plate M. The funnel-shaped or frusto-conical body l3 constitutes an air inlet receptacle, the plate I4 having relatively fine apertures therein so that the air will be strained before entering the in- 5 take manifold.

slidably disposed in the alined arms Hl2 to extend across and between the arms 9-49, is a cylindrical valve body l5 which, at a point intermediate its ends, is circumferentially recessed, as 40 indicated at l6. One end of the body i5 is provided with the eye I l with which is connected an end of a control rod N3, the other end of which connects with the shank l9 carried by a control button 20. The shank E9 of the control button is intended to be slidably mounted in the dash (not shown) or any other suitable location on the motor vehicle in association with which the device is used so that the operator of the vehicle may conveniently shift the valve 55 to a position where the recess it lies between the arms 9 so that air will be permitted to pass from the arm l0 into the arm 9 and into the pipe 2 leadin t the intake manifold.

The end of the valve body l5 opposite the eye H, has a washer 2| mounted thereon and surrounding this end of the body l5 between the washer and the end of the arm I I, is a coil spring 22 which assists in returning the valve body I5 to the position shown in Fig. 2 as the operator shifts the control button shank I9 through the supporting structure therefor. In the position in which the valve body I5 is shown in Fig. 2, it will be seen that the introduction of air into the intake manifold is prevented,but when the valve is drawn across the arms 9-40 against the tension of the spring 22, the circumferentially recessed portion I G of the body will come into position between the arms 9l0 to permit air to pass into the engine with the fuel mixture. Due to the employment of the obliquely disposed vanes or blades 8 at the lower end of the pipe 2 by which the inflowing gases are given a whirling motion, it will be readily seen that the additional air introduced through the unit 5 will be readily taken up and mixed with the fuel gas and air mixture before the latter enters the combustion chambers of the engine.

In the use of the present device, the engine is started with the valve body IS in closed position so that all of the air entering the engine comes in with the fuel charge through the carbureter. After the engine reaches a speed of approximately twenty-five miles an hour, the valve body may be shifted to admit additional air into the intake pipe 2 behind the carbureter. This additional air will be consumed with the fuel charge and as the speed of the engine increases, the increased amount of fuel taken in through the carbureter will not be as great be cause of the introduction of this additional air as would be the case if the present device were not employed. A more readily combustible mixture is thus obtained with the consequent increase of power for the engine.

After the engine has been stopped, its unauthorized starting may be prevented by leaving the valve body [5 in the position where the passage between the arms 9 and I0 is open, as this will permit the introduction of such a quantity of air that the fuel mixture will be made too lean for the starting up of the engine.

In using the present device upon automobiles which are equipped with air strainers, the present device can be attached to the strainer between the latter and the air intake manifold so that all air passing through the device will first pass through the strainer. When this is done, the portion l3 of the device will, of course, be done away with.

It will also be apparent that by attaching the tubular arm 9 of the device to the pipe 2 in the manner illustrated, the air entering through the device will come in tangentially to the pipe and thus assist the portion 4 in maintaining a whirling of the fuel gases and will also insure the thorough carburetionof the same.

What is claimed is:-

A device of the character described for connection and use with a gas and air mixing pipe, comprising an apertured plate secured with the aperture in axial relation with the pipe, a series of fixed inclined blades in the aperture and radiating from a center common thereto to the edge thereof, said blades imparting to a mixture of gas and air passing through the pipe, a rotary movement axially of the pipe, an air tube having an end secured in and opening through the wall of the pipe tangentially thereof and at the side of said center to introduce air in the direction of rotation of the gas and air mixture passing through the pipe, valve means for controlling the flow of air through the tube, remote control means for operating said valve, said tube being disposed relative to the plate to introduce air into the gas and air mixture flowing through the tube after it has passed between the blades, and air straining inlet means for said tube.

WILLIAM J. STONER.

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