US1238368A - Auxiliary air-valve for internal-combustion engines. - Google Patents

Description

M. JEWEBER.

AUXILIARY AIR VALVE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED AUG.I0. x916.

3E3$,868, v Patented Aug. 28,1917.

FIG. 1.

mm M77015 I J 7725575,

BY I fi A TTORNEI/IS.

UNITED STATES PATENT OFFICE.

MATHIAS J. WEBER, OF CHICAGO, ILLINOIS.

AUXILIARY AIR-VALVE FOR INTERNAL-COMBUSTIQN ENGINES.

Specification of Letters Patent. Patented Aug, 28, 1917'.

Application filed August 10, 1916. Serial No. 114,226.

To all whom it may concern:

Be itknown that I, MATHIAS J. \VEBER, a citizenof the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in an Auxiliary Air-Valve for Internal-Combustion Engines; and I do hereby declare that the following description of my said invention, taken in connection with the accompanying sheet of drawing, forms a full, clear,,and exact specification, which will enableothers skilled in the art to which it appertains to make and use the same.

My invention relates generally to improvementsin an auxiliary air valve for internal combustion engines and it consists, essen- 1 tially, in the novel and peculiar combination 1 of parts and details of construction, as hereinafter first fully set forth and. described and then pointed out in the claims.

It is the object of this invention to supply means to an internal combustion engine for increasing the air supply to the explosive charges entering the cylinder or cylinders'of such engine, especially when the engine is running at high; speed, whereby said explosive charges are enriched with oxygen and thereby more effective explosions attained. Other advantages resulting from the addition of air to the explosive charges are that the carbonization of these charges is mate-' rially reduced; that the engine cylinders are kept cooler; and the efficiency of the engine considerably increased while-the consumption of the hydrocarbon fuel islessened.

To attain these desirable" results I provide an internal combustion engine with an a-uxiliary airsupp-ly valve as illustrated in the drawings. alreadymentioned, in which Figure 1 is an elevation of the intake manifold of an internal combustion engine showing the valve in position; c Fig. 2 isa side eleva- 'tion. of the valve detached. Fig. 3. is-an end View of said valve, the abutment nut'34 on the valve stem 24 being omitted. Figlet is a longitudinal sectional view thereof. Figs. 5 and 6 are-similar views illustrating slight modifications of the constructionof the valve proper, and Fig. 7 is an end view of the device illustrated in Fig.7. Fig. 8 is, likewise a longitudinal section, illustrating further modifications of this device.

A, in Fig. 1 designates the "intake mani-- manifold may be ofany and various" types of intake pipes supplying the engine cylinders of that class of motors with the explosive charges, and B indicates my auxiliary air supply valve as a Whole- This valve, in the preferred embodiment of my invention, comprises a body or casing 12, which 831d body has one of its extremities reduced in diameter and the reduced portion is externally screw threaded as shown at 13 and provided with an internal bore 14; said reduced screw threaded portion of the body 12 being adapted for being screwed into the manifold A in an :pbvious manner.

purposes hereinafter referred to. i a

The internal bore let terminates at a transverse wall 20 in the body 12, which wall is:

- series of holes 21, said holes 21 affording passages from the interior bore 22 of the member .15 to the bore 1 1 and from thence:

centrally bored at and surrounded bya to the intake pipe A.

In the bore 22 and guided at one end in the central aperture 23, and at the other end in the central bore 18 in the cap 16, there is located the valve proper, said valve proper.

comprising astem 2i, having approximately medially 'of its length'a flange25 faced with a seat washer 26, made of some suitable slightly elasticmaterial, such as rubber or leather, said seat disk or Washer 26 being constructed to seat upon the inner face of the head 17 of the cap 16, and thereby ,to

close the holes 19 therein. A coil spring 27,: normally under expansion and surrounding, the valve stem 24 and bearing against the said flange or collar 25, is located in the bore 22 and extending into the cap. 16, to keepthe valve normally closed.

From th body 12 extend two curved arms 28, 29, in parallel spaced relationship; and a I at thelfree ends of these arms there/is; mounted a lever 3O, pivoted to saidarmsby,,105

apivotbolt '31, said lever being curvedr-at one extremity and the terminal of this;

7 .curved portionis preferably bifurcated, as

indicated at 32 in Fig. .3, whileat the other extremity of said lever 30, there is a pivlever SO nay be manipulated.

otally connectedrod 33, by which rod the.

I The outer end of the valve stem 24 is externally screw threaded and on this screw threaded end, and on the outside of the fork 32, there is located an abutment nut tion 15 of the body 12 there is located a jam nut 35, by means of which the cap 16 is locked against rotation after ment has been made.

I have heretofore stated that the preferred embodiment of my invention includes the elastic packing seat for the valve proper; this construction being cheap and reliable and easily repaired; but when desired this construction may be varied by theintroduction of a conical, metallic seating valve 36, as shown in Fig. 5; or a ball 37, as illustrated in Fig. 6, may be employed instead; but in orderto hold this ball to its seat, I employ a lever 38, pivoted to the body 12 in a slotted aperture 40 therein, by a pivot'39, and then form a cup-shape'd depression 41, in the flange 25 of the valve stem to engage said ball 37, there being insaid flange a series of passages 42, to permit air entering the cap to pass there-' through and through the holes 43 in the diaphragm 44 in said body 12, into the discharge bore 14. 4 1

Thev operation of this device is entirely automatic. The suction created in the engine cylinders, when drawing in acharge, pulls thevalve 2526 from its seat in the cap and thereby permits air to enter through the openings 19, the lever 30 being in its normal position shown Fig. 5 to permit free playing of the valve; but'in order to proper adj ustregulate the amount of air that may be per- -'mitted to enter, the cap 16' is rotatively mounted in the-portion 15 of the body 12, whereby by rotating said cap in one or the other direction, the tension of the spring 27 may be decreased or increased as the case may be, while when the motor is running very slow the auxiliary air supply can be entirely. shut off by holding the valve proper to its seat, as already described.

.It is a well known fact that many of the automobiles now on the market are not supplied with carburetors capable of so exactly proportioning the charges of hydrocarbon andoxygen as to produce the best results concerning the'power developed and the fuel consumed under the varying speed conditions, and that most of the engines thus insufliciently served, fail under high speed performance. To assist this class of motors in increasing their capacity when running at high speed, my invention is especially effective because the additional oxygen necessary under these high speed conditions is automatically supplied, and the amount thereof readily adjusted by the rotation of the cap 16. This additional air supply results also in a'higher power development; it prevents to a great extent the carbonization of the fuel charges, and keeps the motor cylinders cooler than is otherwise attainable, thus giving a greater mileage run to a given quantity of the liquid fuel, or inversely, a less consumption of fuel for a given mileage run of the motor.

And finally, when a motor is running at a very slow speed, where the additional air supply might be a drawback rather than an advantage,- I can stop the additional supply instantly by a manipulation of the lever 30, as already described. I

As a further modification of this device, I place a band 46, shown in Fig; 8, around the main body portion 12, and form this band with the forks 29 wherein the lever 30 is pivoted. I also lengthen the tubular member 15 somewhat, so that when the lever 30 is pulled by the rod 33, the back of the flange 25 will bear against the forward edge of the tubular member 15, and thereby close the passage through the valve casing. This construction does not interfere with the vibratory movement of the valve proper, which, under normal conditions of operation, is but slight, and it has the advantage that I can dispense with the abutment nut 34, which will slightly cheapen the device without impairing its efliciency.

The band 46 may be fastened to the. main body in any suitable manner.

I have heretofore described the preferred construction of this automatic auxiliary air valve and several modifications thereof, but I desire it to be understood that I am aware that other modifications and changes may be made in the construction of this device without departing from the scope of my invention, as ascertained in the subjoined claims.

Having thus fully described my invention I claim as new and desire to secure to myself by Letters Patent of the United States sages through said head, a reciprocatable valve in said body, constructed to seat against the inner surface of said head to close the passages therethrough, a spring in said passage constructed to act on said valve to resist the opening thereof, said cap being constructed to regulate the tension of said spring by the rotation thereof, and a lever connected to said valve and constructed to prevent the opening of said valve Without disturbing the adjustment of said cap, by locking-said valve against the inner surface of the head on said cap.

2. An automatically operating air admission valve comprising a main body, said main body having a reduced externally screw threaded nipple, and an externally screw threaded tubular extension, there being a passage centrally through said body, a cap rotatably engaging said extension, there being a central bore in the head of said cap, and a series of holes through the inner surface of said head without disturbing the adjustment 'of said cap, said looking means being entirely extraneous of the device and operated from a position remote from the instrument.

3. An automatically operating air admission valve comprising a main body, said main body having a reduced externally screw threaded nipple, and an externally screw threaded tubular extension, there being a passage centrally through said body, a cap rotatably engaging said extension, there being a central bore in the head of said cap, and a series of holes through the head of said cap surrounding said central bore in said head, a reciprocatable valve in said tubular extension and,in said cap, said valve being constructed to seat against the inner surface of said head, a spiral spring in said body and said head constructed to act upon said valve to resist the opening thereof, the tension of said spring being adjusted by rotating said cap, and a lever pivotally connected to said main body and constructed to act-on said valve to prevent the opening thereof.-

4. An automatically operating air admission valve comprising a main body, said main body having a reduced externally screw threaded nipple, and an externally screw threaded tubular extension, there being a passage centrally through said body,

a cap rotatably engaging said extension,

there being a central bore in the headof said cap, and a series of holes through the head of said cap surrounding said central bore in said head, a reciprocatable valve in said tubular extension and in said cap, said valve being constructed to seat against the inner surface of said head, a spiral spring in said body and said head constructed to act upon said valve to resist the opening thereof, the tension of said spring being adjusted by rotating said cap, a lever pivotally connected to said main body and constructed to act on said valve to prevent the opening thereof, said lever having an arm, said valve having a stem protruding from said cap,

said arm being bifurcated to embrace said protruding stem, and an abutment at the end of said protruding stem, said bifurcated arm being constructed to act upon said abutment.

In testimony that I claim the foregoing as my invention, I have hereunto set my hand.

MATHIAS J. WEBER.

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