US936118A - Carbureter. - Google Patents

Description

G, T. GLOVER.

GARBURETER. APPLICATION FILED JULY 10, 1906.

Patented Oct. 5, 1909.

3SHEETS-SHEET 2.

I WITNESSES: fi W W ATTORNEY G. T. GLOVER. UARBURETER. APPLICATION FILED JULY 10, 1906.

Patented Oct. 5-, 1909.

3 SHEETS-SHEET 3.

WITNESSES:

ATTORNEY GEORGE T. GLOVER, 0F CHICAGO, ILLINOIS.

CARBURETER.

Specification of Letters Patent.

Patented Oct. 5, 1909.

Application filed July 10, 1906. Serial No. 325,439.

To all whom it may concern:

Be it known that I, GEORGE T. GLovnn, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented -certainnew and useful Improvements in Carburetors, of-

whi'ch the following is a specification.

My invention-relates to carbureters for motor vehicles.

Objects of my invention are, to rapidly and thoroughly saturate the air within the mixing chamber with gasolene; to provide within the mixing chamber a comparatively large area of surface over which .the gasolcne supplied from suitable supply means is distributed and at the same time to permit free How of air through themixing chamher: to proride a. throttle which can be opened by lateral draft from any desired direction; to utilize means for permitting the distribution of gasolene over a. comparatively large area of surface in the mixing chamber as a means for closing the throttle; to provide the feed chamber with a simple and improved valve; to insure the closing action of the va'lvein a simple and elt'ect'ive way; to provide a simple and durable construction of feed and mixing chambers andadjuncts; to insure a suitable supply of gasolene from the feed chamber to the mixing chamber; and to provide teatures of detail, combination and ar 'angemcnt, involving a simple and efiicient construction.

In the accompanying drawings: Figure 1 represents partly in vertical central section and partly in elevation a carbureter embodying-the principles of my invention, a portion of thetu'bular mixer shell or casing being broken away for convenience of illustration. Fig. 2 shows the mixer in elevation and illustrates in dotted lines the throttle in position to close the opening at the lower end of the mixer or mixing chamber,- the throttle as shown in full lines in Figs. 2 and 3 being open. InEig. 2, the feed chamber formed as shown in Fig. 11s om tted and also a difi'erent form of valve iseinployed. Fig. 3 shows the tubular mixer shell or casmg in elevation with a portion broken away.

In this View, the valve or cook illustrated in Fig. 2 has a slightly different form of handle,

' threaded end portion 5 of the casing 2.

and the valve-chamber and arm 19 are modified merely as to proportions. In this figure the gasolene is supplied to a spiral coil 23' of perforated bent tubing and the throttle is attached to the lower end of a-spiral spring 29, which is suspended from the coil 23. In this figure the throttle is closed.

In Fig. 1 the mixing chamber A of the carbureter is supplied with gasolene from a feed chamber B, connection between the two chambers being established by an arm or.

bodyrframe member C arranged lateral to the chamber and having a small longitudinal bore orpassage forming a duct 1 which opens into each chamber. The casing 2 of the feed chamber B is tubular and upright, and one end of the lateral duct a rm C is secured thereto in any suitable way at a point relativelynearer the upper than the lower end wall of this tubular or cylindrical feed chamber, which as shown has a. lower end wall 3, and anupper end wall formed by a cap 4; which is. screwed onto the upper The cap or upper end-wall of this chamber is also provided with an inlet din- 1'6 for the admission of gasolcne from any ordinary or desired main supply tank or chamber which is understood. to be present on a motor vehicle provided with my improved carburetor. and which is also understood to be connected with the inletduct for the feed chamber 13in any ordinary or desired mechanical way. As shown, the duct 6 is formed through an externally threaded plug or coupling 7' secured to and extending through the center her B is controlled by a float valve 1) com- 7 prising a float- 8 of cork or otherwise madeso as to have suitable buoyancy, and provided with an upwardly projecting seating.

portion formed by a stem 9 having its upper end beveledor pointed and practically constituting a needle valve on the float 8. The

duct 6 is for a portion of its length of such diameter that it can be closed by the inscr-.

straight portion -of the duct, the latter has its lower end portion flared outwardly and downwardly as at 10, thereby providing an .annular inverted funnel-shaped wall, which will direct the needle 9 into the smaller upper portion of duct 6, at a point aboveand' contiguous to the upper terminal to its said fiaring'f wall portion. When therefore the 'motor or engine is arrested and the chamber B fills to a suitable extentwith gasolene, the-float 8 will rise until its needle valve .portion 9 enters the contracted lower end of duct 6 and closes thesame. Thegreatest diameter of the float 8 is a little less than the diameter of chamber B, so as to permit the passage of gasolene'between the two, it being understood, however, that the space between the float and the inner wall of the ends toward its middle portion substantially as shown, so that when the main body portion of' the float is opposite the inlet end of duct 1, suitable space will be left between the float and this inlet end of the duct, it being seen that this space increases the capacity of the feed chamber by decreasing the diameter of the float, while at the same time it leaves the float with enlarged ends of less diameter than the diameter of the feed chamber, but of sufficient diameter to permit the wall of the feed chamber to generally direct or guide the float in its up and down movement.

Thc'mixing chamber A is open at its lower end as at 11, and is preferably formed by'a tube or tubular casing 1.2 which is arranged in an upright position and secured to the vehicle in any suitable way, for example, by bolts 13 attached to a cross is in turn secured to the upper end -of the tube or tubular casing 12. The mixing chamber which is thus provided with an opening 11 for the admission of air, contains a longitudinally arranged spiral spring or coil spring E. This spring, which broadly considered is a wire or analogous spiral coil,

and the discharge end of duct 1, are rela'- tively arranged within the mixing chamber so that gasolene discharged into the mixing chamber from the duct 1 will flow on to the wire coil. As shown, the discharge end of duct 1 is just over the upperend of the coil. When therefore the gasolene is fed onto this coil, it will rapidly distribute itself over the coil. and thereby expose to the incomingair head 14, which a comparatively large area of surface of paratively large area of coiled surface, and

that when the engine or motor is at work,

this exposure of the gasolene to air flowing upwardly through the mixing chamber A, will permit suchair to rapidly and effectively take up the gasolene and thereby form a' highly desirable gas which is free from various common objectionable features.

The spring E is suspended centrally within the mixing chamber, and to the lower end of the springin Fig. 1, is hung or attached by a jointed connection a throttle F for opening and closing the inlet port 11 of the mixing chamber. "lhis valve or throttle F is provided with a convex seating'and closing face 15, which is rounded in conformity wit-hthe surface portion of about one-half of a ball or sphere. Of course the throttle might be a complete'spherical body, but it is only practically necessary to make it in the form of about one-half of a sphere, and it also may be hollow or concave-convex as illustrated. This rounded throttle is provided with a stem 16, and as shown, the

stem 16 has one end portion projecting from the convex face of the throttle and formed as an eye which is hung upon a hook-shaped portion 17 of the spring, the lower end of said stem 16 being provided with an eye 18 to which any suitable operating rod or cord can be attached and extended to a point.

withinconvenientaeach of the driver or chauffeur of an automobile or motor vehicle containing my improvement A particular advantage of this rounded throttle which is a sort of ball valve, is, that it can be operated to open the port 11 from any direction, that is to say-a rod or link or cord or chain attached to the eye 18 of stem 16 of the throttle may be extended laterally therefrom in-any direction whatsoever. The

rounded throttle F is caused tojnormally' close port 11 by the retractile energy of spring E, said spring being expanded when the throttle is opened as in Fig. 1, and also as shown in full lines in Fig. 2, which said figure illustrates the throttle in closed position in dotted lines. When suitable lateral pull is exerted upon the lower end portion of the throttle stem 16, the throttle will open the port 11 as shown, and in so doing, it will bear and tilt or rock uponan edge portion of the lower end of the tubular'casmg 12, and no matter in which direction this lateral pull isthus exerted upon the throttle stem, the throttle will tilt or rock upon some portion of the lower end of casing 12, and also tilt in direction to open the inlet port 11 of the v mixing chamber.

It is understood that in Fig.1 2 the external with the arm ormember G in Fig. 1, conand internal construction of parts is the same as in Fig. 1, with the exception that in- Fig. 2am arm or member 19 corresponding nects with one endiof a valve chamber 20,

f the opposite end of said valve chamber being connected with a supply duct or pipe .21, which is understood to lead to a suitable main supply tank or reservoir. Also that in Fig. 2 the duct through the members 19,

20 and 21, is opened and closed by an ordinary valve or cook Gr, having a small hand wheel 22 for adjusting the same;

' In Fig. 3 the-spiral coil E consists of a.

v understood that the deliverypipe or passage.

small tube bent to form the spiral coil and having its upper end portion extending laterally from'the coiland fitted in the arm 19,

- so as to adapt its passage to connect with the duct 1. With this arrangement the spirally coiled tube E is provided with small apertures or perforations 23 opening through the inner or outer side of the coil or both, so

that gasolene admitted into such tube will pass out the perforations and trickle down the spiral coil. Preferably the spiral coil E is sufficiently resilient to form a spiral spring, but in case material not sufilciently springy is used, the throttle 15 can be connected with the coil by a suitably resilient spiral-spring24 which issuspended. from the spiral coil E, the stem 16 being with this arrangement attached to the lower end of the spring 24. In. Fig. 3 themembers 12,

19, 20 and G correspond with members hav-' ing like-reference'numerals in Fig. 2, it being observed that in Fig. 3 the members 19 and 20 are merely of'slightly difierent-proportions, and that the valve or cook G has an operating arm or handle 22 in place of a hand wheel.

. The construction and arrangement of the tubular feed and mixing chambers with a needle float valve in one and a spiral spring coil in the other, provides an exceedingly simple organization which is not-liable to get out of repair,

and which isv exceedingly effective.

V It is understood thatthe mixing chamber is suitably connected with the explosion chamber of a suitable engine, and that when used the engine and carburetor are suitably arranged as parts ofamotor vehicle. It is connects with the upper end portion of the mixing chamber at a point above the outlet.

end of the duct 1, and that a pipe 'or. tube forming such delivery passage may be connected in-any suitable way with the upper end of the tube 12 which provides a mixing chamber- During'the operation of the en gine a current of air will be induced upwardly-through the -mixing chamber and take up the gasoleneffrom the surface of ,thegspiral coil E,- it being evident that the the result w arrangement of this coil presents a large area of surface and at the same time it permits a free circulation of air. v

As illustrated in Figs. 1 and 3, the spiral coil composed of wire or tubing is an open spiral coil shaped afterthe manner of an open cylindric or analogous coil spring having a longitudinal central passage circumscribed-by the convolutions and communicating with the mixer chamber space about the coil structure by way of space between the convolutions. By this arrangement the coil has an upright central. passage free for the circiilation of air. The mixing chamber forms an upright passage within which the coil is suspended, and whether the gasolene drips upon the coil as described in'connection with Fi l, or is'supplied as in Fig. 3,

1%1 be a distribution of gasolene over a large area of coil surface,

What I claim as my invention is:

1. In a carbureter, a mixing chamber forming an upright passage for the upward circulation of air; an open spiral coil structure suspended within said passage and having a. longitudinal, central, open, passage circumscribed by the convolutions of the coil and communicating with the chamber space about such coil structure by way of space between the convolutions; and means for supplying gasolene from a source of supply to the exterior surface'of the coil.

2. In a carburetor, amixing chamber; a spiral coil formed of bent tubing and arranged within the mixing chamber, and means for supplying gasolene to said coil, the coil tubing being perforated to form outlets, and having its upper end portion connected with a supply port. 3. In a carbureter, a mixing chamber having a bottom opening for the admission of air and ada ted higher up for connection with an exp osion engine; a spiral spring suspended within themixing chamber, and athrottle having a convex seating face for Closing the bottom opening of the mixing and orm l y held closed by the spring.

4. In acarburetor, amixing chamber having a bottom openin ,for the admission of air and adapted'hig erup for connection with an'iexp osion engine; a spiral spring suspended within the mixing chamber; a throttle having a convex face for c osing chamber, the throttle being connected with the bottom opening of the mixing chamber,

the throttle being connected with and normally held closed by the spring; and means for supplying gasolene from 1 a suitable source of supply to'the outer surface of the spring. u p v .5. n a carburetor, a mixingchamber, con- H sisting of a passage formed by an u right tubular casing open at its lower en and-- adapted for connection at a point higher up & 936,118

with a suitable explosion engine; a pendent the throttle being provided with a central spiral spring Within the mixing chamber; stem and suspended from the spiral spring.

means for Sn l in asolene from a suitq able source of ugpl; a) the outer surface of UEORGE GLOVER' the spiral spring; and a throttle having a Witnesses:

convex seating face for openin and closing CHARLES G. PAGE,

the lower end of the tube or tiilmlar casing, OTTiLIE C. FREIBERG.

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