US1546585A - Carburetor - Google Patents

Description

July, 21, 1925.

1,546,585 E. JESKE CRBURETOR Filed June 26, 1925 2 Sheets-Sheet 1 atroz/weg July 21, 1925. 1,546,585

' E. JESKE CRBURETOR Filed June 26, 1925 2 Sheets-Sheet 2 v v f /f Patented July 21, 1925, Y

,EDWARD JESKE, or GACKLE, :NORTH DAKOTA.

CARBURET on.

Application led June 26, 1923. Serial No. 647,790.

To all whom t may concern.'

Be it known that EDWARD Jnsnn, a cit-i- Zen ot the United States, residing at Gackle, North Dakota, has invented certain new and useful Improvements in Carburetors, of which the tollowingis a specification.

This invention relates to certain new and useful improvementsin charge forming devices for internal combustion engines, and has particular reference to an improved torni ot carburetor whereby a finely divided mixture is obtained and the fuel and air are eiiectively mixed so that the engine may be economically operated and .maximum power derived therefrom.

The primary object ot the invention is to provide a novel and improved means for the spraying of air and fuel into the intake end of the carburetor Vwhereby a line spray and initial mixture of air and fuel is obtained.

Another object ofthe invention is to provide the air and fuel spraying means in advanee of a series of partitions arranged in a novel manner, whereby the mixture is subjected to a more eiiective and liner mixing operation before passing to the `outlet ot' the carburetor.

lWith the above general objects in view, and others that will become apparent as the nature of the invention is better understood, the same consists in the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawings and claimed.

In the drawings, wherein like reference characters indicate corresponding parts throughout the several views,

Figure 1 is a top plan view of a carburetor constructed in accordance with the present invention,

Figure 2 is an end elevational view looking towards the lett of Figure 1,

Figure 3 is a longitudinal sectional view taken on the line 3 3 ot Figure 1 and with part removed,

Figure 4 is a sectional view on line 1- t ot' Figure 1, and l Figure 5 is a longitudinal sectional view taken on the line 5-5 of Figure 1.

Referring more in detail to the several views, the invention embodies a casing 5 having opposed intake and outlet ports 6 and 7 respectively provided with the usual butterlly control valves 8 and 9 Which are provided with the usual control mechanisms 1() and 11 whereby the charge volume and main supply ot air are selective-ly or simultaneously controlled in the well-known manner. V

lThe central portion of the casing 5 is provided with a hollow enlargement 12 atene side thereof, and as seen in Figure 3, this central portion is also enlarged at the bottom thereof as at 13. In this manner the central portion of the casing is made relatively large and the space therein is divided into four chambers by means of intersecting longitudinal and transverse partitions 111 and 15 respectively. Thus, the enlarged central portion of the casing in line with the inlet and outlet ports 6 and 7 embody the inlet mixing chambers 16 and outlet mixing chambers 17, while the side enlargement 12 embodies the intermediate mixing chambers 18 and 19 respectively communicating with the compartments 1G and 17 through openings 20 and 21 provided in the lower end of the adjacent portions ot the partition 141. It is to be noted that the partition 15 at one side ot thep'artition'kt is impervious, so that no communication is provided directly between the compartments 16 and 17, but the partition 14 at the other side, or within the enlargement 12, is spaced trom the top wall et the casing, as indicated in Figure 5, to provide a communieating port 22 between the compartments 18 and 19. A circuitous path is thus provided for the travel of the explosive vmixture by means et which the latte-r is caused to travel first transversely of the casing, then longitudinally thereof, and then finally transversely of the casing in an opposite direction, to the outlet port 7. In following this path of travel the mixture strikes against the top and bottom walls of the compartment, and in being deilected therefrom, is more thoroughly vaporized and mixed.

Means is provided for suppling the mixture initially to the compartment 16 at the topof the latter and inwardly ot the butterfly valve 18. This means embodies a pair ot tubes 23 which extend through the sides ot the casing and converge inwardly so as to terminate in the same horizontal plane and in slightly spaced relation, as will be seen from an inspection of Figures 2 and 3. These tubes are open to the atmosphere and permit the ready flow of air thereto, while separate pipes 211 extend a slight distance into the t-ubes 23 and terminate in discharge nozzles 25 opening toward the inner ends of the tubes for supplying fuel, in a manner which will presently become apparent.

The side of the casing 5 opposite that occupied by the enlargement 12, is formed to provide a float chamber 26 having a top inlet 27 for the fuel which may be connected with the usual supply .tank in the well known manner. Arranged within the chamber 26 is a floa 2T having a stem projecting beyond the top and bottom thereof, the lower projecting portion 23 of which is slidably engaged in a guide 2S) carried by the removable bottom member 291, so that the float is effectively guided in its vertical movement. rEhe upper projecting end of the stein embodies a needle valve 30 which is adapted to cooperate with the orifice 31 of the inlet nozzle 27 for the fuel, which nozzle is disposed directly above the valve 30, as shown in Figure e. lt will be seen that when t-he float moves upwardly to the required level of the fuel within the compartment or reservoir 2G, the valve 30 will be closed for cutting off further supply of the fuel. A suitable draincoclr 32 may be carried by the removable bottom 28% for withdrawing sediment or the like.

The chamber 26 is provided with a side outlet 33 controlled by a needle valve 34; which regulates the volume of fuel wit-hdrawn from the chamber 26, and the lateral branch 35 of the outlet 33 is attached to the ends of the pair of tubes 24 as at 36, the other ends of which each terminate in the nozzles 25 entering the tubes 23.

ln operation, the engine is started so as to induce suction in the carburetor for drawing air through the tubes 23, and as this air passes the nozzles 25, the fuel is sucked from the chamber 26 through the tubes 24 into said tubes 23, to be discharged together with the air in streams or sprays which intersect each other in the top of the compartment 16. Air also enters at the intake port G and mixes with the air entering the tubes ..3 and the fuel drawn through the nozzles 25, after which the mixture follows the circuitous path mentioned above for being effectively mixed and ultimately delivered to the intake manifold of the engine through the outlet port 7.

lt has been found by actual practice that a carburetor constructed in accordance with the above will give great satisfaction both as to continued operation and effective mixture of the air and gas for obtaining maximum power through the supply of a readily and highly explosive mixture.

Minor changes may be made without departing from the spirit and scope of t-he invention as claimed.

llJhat l claim is new and desire to secure by Letters Patent is:

A mixing device adjacent to and in the same horizontal plane with a carburetor, having a bottom enlargement and a side enlargement at the intermediate portion thereof, longitudinal and transverse partitions dividing the enlarged portion into an intake chamber, an outlet chamber, and a pair of intermediate side chambers having ports spirally connecting said chambers in staggered relation, for providing a circuitous path for the mixture.

ln testimony whereof I aliix my signature.

EDl/VARD JESKE.

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