US1343668A - Internal-combustion engine - Google Patents

Description

s. I. FEK ETE. INTERNAL COMBUSTION ENGINE. APFLICATICN FILED JULY Ill I917- Patented June 15, 1920.

UNITED STATES STEPHEN IVAN FEKETE, OF DETROIT, MICHIGAN, ASSIGNOR, MESNE ASSI ON- v PATENr orricn MENTS, TQ ESSEX MOTORS, OF DETROIT, MICHIGAN, A CORPORATION OF,

MICHIGAN.

INTERNAL-COMBUSTION ENGINE.

' Application filed m 11,

To all whom it may concern:

Be it known that l, STEPHEN IVAN FE- KE'IE, a citizen of the United States, residing at Detroit county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Internal-Combustion Engines, of which the following is a specification, referencebeing had therein to the ac companying drawings.

My, invention relates to internal combustion engines having a plurality of cylindersand particularly of the type in whichthe I inlet valve is located on the top of the cylinders and the carbureter'is located on. the side helow the top of the engine. The particles of fuel must therefore he lifted from the car-' hureter by the air and by it carried up into the inlet manifold, thence along the inlet manifold in either direction and past the inlet valves into the various cylinders. When the engine is cold the entire fuel will not he mixed with air or vaporized but on the contrary only the lighter oils will be vaporized while the heavier oils will remain in'liquid condition or will. condense on. the walls of the passage. The movement of the air through the inlet manifold will not be sufficient to lift-the particles of heavy fuel up from'the carbureter to the level of the inlet valves. Furthermore, when the engine is. running normally the particles of 1i t oil and the particles of the hea oil w' l have different momentum and. wi

reached while the particles of lighter. oil.

will be carried onto the cylinders which are farthest away. The result is that there is a" slight difi'erence in the carbnretion of the gas at'the cylinders which are nearer the careloureter and at those which are farther away so that difficulty is experiencedin' adjusting the carburetor to' a sions in all the c inders. {The foregoing produce uniform explo- 1917. Serial No. 180,023.

' troubles are characteristic-of engines having overhead valves.

My invention remedies these defects without adding to the expense or complicating the engine. I

The invention will be fully understood from the following description taken in connectionwith the accompanying drawings and the novel features thereof w1ll be pointed out and clearly defined in the. claims at the close of this specification. 1

In the drawings, Figure 1 is a sectional elevation of one cylinder, an and a carbureterl ,Fig. 2 1s a viewinlet manifold in elevation of a block or six cylinders together with the inlet -mani-' fold and carbureter.

Fig. 3 is a plan view ofthe parts shown in Fi 2. y

fieferring now to the drawings, at Ais -shown a block of sin cylinders, inlet valves Specification of Letters Patent; Patent d J 1'5 1920 of the overhead type being indicated at'fB. One of thecylinders (l is shown in section in Fig. l. 'l

valves B it instead of over the top of -them as has heretofore been the ordinary construction with engines of. thistype'." At Eds j e inlet manifold is designated D and'lies at one side'of the line of inlet a Venturi'tuhe;.-'j At G is shown a float eh'amher of the carbureter connected by a pipe lit through which the fuel passes to the fuel" orifice. .Anjy forin of carhureter may he usedln the .drawingsgfonly the essential elements of a carhureter. are shown.

lltwill be seen that, "the level of the fuel .jet is aloove the inlet valve E and the passage throughwhich the mixture of as and. 5

9.11 passes'to the engine isnowhere; inclined upwardly at all, hut on the contrary is throu hout downwardly inclined eor horizont it will also heseenthat the inlet" a manifold l), which lies. along side the clined passa es K leading down to the inlet valvesfsl opes downwardly in both directions from its central part'at which the fuel'is atted so that-any unvaporized hydrocarhon or heavy. particles thereof will flow downward toward the inlet valves; in.

other" words, the improve-a construction is such that the explosive mixture of gas and air emerging from; the air passage of the 1 carbureter moves downward to the cylinders of the engine and there are no pockets into which the heavy particles may drop and accumulate neither are there any upwardly inclined places over which the heavy particles of fuel require to be lifted. The result is that the engine practically primes itself since all the fuel discharged from the fuel contrary a uniform mixture in all the cylin-' ders is produced thus making it possible to adjust the carbureter more satisfactorily and producing uniform explosions in all the cylinders. Increased economy also results from the uniform accurate mixture offuel and air in all of the cylinders.

What I claim is:

1. An internal combustion engine having a plurality of cylinders, an overhead valve in the top of each cylinder, a fuel inlet manifold sloping downwardly in each direction";

Lseaee from a fuel admission point midway of the cylinders, and downwardly inclined passages leading from said manifold to said valves, combined with a. carbureter the air inlet pipe of which enters the inlet manifold at the said point midway of said cylinders, said carbureter having a fuel jet nozzlelocated above said midway point.

2. An internal combustion engine having a plurality of cylinders andan overhead inlet valve at the top of each cylinder, said engine being provided with a fuel inlet manifold arranged above the level of the said'inlet valves and sloping downwardly from its central part, downwardly inclined passages leading from said manifold to said valves, combined with a carbureter communicating with said "central part of said manifold, a fuel jet nozzle leading from said carbureter, and an air inlet pipe into which said nozzle projects with its end above the level of the bottom of said manifold and from which nozzle the bottom of said air inlet pipe slopes downward toward the bottom of said-manifold. In testimony whereof I aflix my signature.

STEPHEN IVAN FEKETE.

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