US1006033A - Carbureter. - Google Patents

Description

G. L TER WEBB.

GARBURBTER.

APPLICATION FILED JULY 19, 1909.

Patented 00t.1 7,1911.

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rrn .ne raft rib GABJHARDIUS L. TER when, or DETROIT, MICHIGAN, ASSIGNOR or, ONE-THIRD ro if svnrmu a. rrmsran AND JOHANNES H. FIGEE, or DETROIT, MICHIGAN.

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To aid whom it may camera Be it known that I, Gannannos L. 'rnu Were, a subject of the Queen of the Neth: erlands, residing at Detroit, in the county oi Wayne and State of Michigan, have invented certain new and useful improvements in Carbureters, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to carbureters, and consists in certain features of construction, and in the arrangement and combination of parts as will be more fully hereinafter described.

In the drawings,vl igure l is a-vertical central section through the carburetor; and Fig. 2 is a'siinilar view, illustrating a znodification.

in the drawings thus briefly described, A represents the casing of the carburetor, preterably formed in two par.ts,--the reservoir B and top G,-the latter havin a screweservoir B, as at D. The reservoir is provided with a supply connection E, controlled by a needle valve F, this valve being governed in the usual manner by a float In order to indicate the position occupied by the valve F, I extend the stem thereof outwardly through the top of the casing C, its engagement with the casing forming a bearing for guiding the, stein during the raising or lowering of the valve.

H isthe air conduit, formed centrally of l the reservoir B, having a restricted portion I, and terminating beyond said restricted portion in an elongated chamber d, which 1n turn terminates in .a restricted drieletdii L is a spider,'M isthe' oil. dichafrge noz zle secured centrally thereotl and .N are conduits establishing comm nicat-ion between the rservoir and the discharge nozzle.

0 is a double tapered air valve normally mstin; ;upon seats 1 and R formedon the air conduit.

S is a spider, fixedly secured to the upper portion of the valve 0, and T is "a needle valve controlling the outlet of the discharge nozzle and having a free sliding engagement with the spider S, thereby forming'means for guiding the vertical movement of the valve O. I W V v r r U is a member telescopically engaging the needle valve T, and having a screw-thread ed engagement at its outer end with the Specification of Letters Patent.

Application filed July 15, 1909.

Patented Oct. 11? 1911.

Serial No. 508,327..

top Q, as at V. The lower end \V of this ber U in its various positions of adjustment.-

ihe needle valve '1. is adjustable independently of the member U, and to this end has an externally screw-tln'eaded portion 0 engaging corrcsponding internal threads (1 on the member ll.

In the modification shown in Fig. 2, the diaazharge conduit is provided with an. ad justable needle valve T at its lower end -vvhich controls the flow of oil to the discharge conduits The member U is theretore made solid, and has its lower end slidably engaging the spider S, the upward movement of the valve being limited by means of a collar or pin \V upon the member U. ed engagement with the top of the casing, and is held in its adjusted positions in the same manner as the member U shown in Fig. l. The stem f in this construction, l]()\\'(3\'0l,(l0lfi not extend outward through the caslngfbut an elongated bearing Z is formed for guiding the movement of the stem. This bearing is so constructed as to form an aunularplmmbor between it and the stem f, and. a plurality of ports in are tornu'd through the sides of the bearing, lherr-iby establishing comnuuiiration between .the inlet port and the reservoir.

panded chamber-J into the discharge conduit n; The raising of this valve also decreases the suction on the discharge nozzle, as the restricted portion of the valve 0 Will be raised above the outlet of the discharge nozzle, which will leave a larger free area around the-end of said discharge nozzle. As

The pin U also has a screw-thread.

soon as the engine resumes its normal speed the valve seats by gravity. As long as the suction in the carbureter is sullicient to raise the valve from its seat, it floats-between its seats and the stop for limiting its upward mm'ement. Thus, it will be seen that the engine is automatically controlled through the carburetor by means of the valve 0, and also that the construction is such that it can be readily applied to engines of widely varying horsepower. It will also be observed that no springs are emplo ved in the carbureter.

\Vhat I claim as my invention is,

1. In a carlnu'eter, a conduit adapted to connect with an engine, a vertically disposed air conduit open at its lower end and communicating at its ipper end with said first mentioned conduit. said air conduit being provided with a valve seat at the top thereof and intermediate the ends thereof and directly below said valve seat with an enlarged portion therein, an oil t'eed nozzle positioned centrally of the enlarged portion of the air conduit, and an open ended double cone valve positioned in the air conduit and surrounding the oil teed nozzle, the upper end of said valve being normally seated on the valve seat at the top of the air conduit and the lower end of said double cone valve extending below the point of greatest width of the enlarged portion ot' the air conduit.

2. In a carhuretcr, an air inlet provided with an enlarged portion therein, an oil feed nozzle positioned centrally of the enlarged portion of the air inlet conduit, a double cone valve positioned in the air conduit and surrounding the oil feed nozzle, the ends of said valve being normally seated in the air conduit, adjacent the ends of the enlarged portion thereof, and means forlimiting the movement of the valve.

3. In a carbu-rcter, an air inlet provided with an enlarged portion therein, an oil feed nozzle positioned centrally of the enlarged portion of the air inlet conduit, a double cone valve positioned in the air conduit and surrolmding the oil feed nozzle, the ends of said valve being normally seated in the air conduit adjacent the ends of the enlarged portion thereof.

4. In a carburetor, an air inlet provided with an enlarged portion therein, an oil feed nozzle positioned centrally of the enlarged portion of the air inlet conduit a double cone valve positioned in the air conduit and surrounding the oil feed nozzle, the ends of said valve being seated in the air conduit adjacent the ends of the enlarged portion thereof, means for limiting the movement of Said valve, and means for controlling the flow of fluid from said fluid nozzle.

5. In a carburetor, an air inlet conduit provided with an enlarged portion therein, an oil feed nozzle positioned centrally of the enlarged portion of the air inlet conduit, a double cone valve positioned in the air conduit and surrounding the oil feed nozzle, the ends of said valve being normally seated in the air conduit adjacent the ends of the enlarged portion thereof, a needle valve con trolling the outlet from said oil feed nozzle, and means for varying the limit of opening of said cone valve and for simultaneously adjusting said needle valve while permitting independent adjustment of the latter.

6. A carbureter comprising a casing forming a float chamber, a float in said chamber, means operated by the tloat tor admitting a combustible fluid to the chamber, an upwardly tapering tubular member in the ot' the float chamber extending upward therethrough and open at its ends, a cap detachably secured upon the float chamber and formed with a mixing chamber into which the upper end of the tubular member opens and also formed with an outlet pas-age leading from the mixing chamber, a Venturi tube in the upper end of the tubular memher, a bridge extending across the tubular i'nember formed with a passage in the float chamber, and a nozzle member secured within the bridge with its opposite end extending upward into the Venturi tube.

7. A carbureter connprising, a cup-shaped casing forming a float chamber, a float in said chamber, means operated by the tloat for admitting combustible fluid to the [load chamber, an upwardly tapering tubnlarj member formed integral with the casing at its axis and opening through the bottom thereof and extending upward through the casing and open at its upper end, acap to close the upper end of the Heat chamber and formed with a mixing chamber into which the upper open end of the tubular member opens, said cap being also formed with a laterally extending discharge passage opening from the mixing chamber, a valve in said discharge passage, a- Venturi tube movably supported within the upper end of the tubular' member and forming. an auxiliary air passage between it and the wall of said member, a flange on the Venturi tube to engage the tubular member and close the auxiliary air passage, and a discharge nozzle in the axis of the tubular member communirating with the float chamber and extending upward into the Venturi tube.

In testimony whereof I atlix my signature in presence of two witnesses.

GARHARDUS L. m wnnn.

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