US531779A

US531779A - Edmond r

Info

Publication number: US531779A
Authority: US
Publication date: 1895-01-01
Anticipated expiration: 1912-01-01

Description

(No Model.)

E. R. 000K.

GABBURETOR.

No. 531,779. Patented Jan. 1,1895` UNITED STATES PATENT Orifice.

EDMOND R. COOK, OF SACRAMENTO, CALIFORNIA, ASSIGNOR OF ONE-HALF TO VARREN F. DREW AND MOSES M. DREW?, OF SAME PLACE.

CARBURETOR.

SEECIFICATION forming part of Letters Patent No. 531,779, dated January 1, 1895.

Application filed April 20, 1894. Serial No. 508,339. (No model.)

To will whom, it may concern:

Be it known that I, EDMOND R. COOK, a citizen of the United States, residing at Sacramento, county of Sacramento, State of California, have invented an Improvement in Oarburetors; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to the class of carbureting devices especially adapted for use in connection with gas or explosive engines.

My invention consists of the constructions and combinations of devices which I shall hereinafter fully describe and claim.

In the accompanying drawings, Figure l is a vertical section of my carburetor. Fig. 2 is an enlarged View of the regulating valve seat and guides. Fig. 3 is an elevation ot' the regulating valve. Fig. a is a top .view of the gratings in the mixing chamber. Figs. 5 and 6 are details to be referred to.

A is the chamber in which the air and gas are mixed. This is divided by a vertical partition d into two compartments a and a? communicatin g below at a3. W'ith compartment c the air inlet pipe B communicates, and with compartment a2 the pipe C to the engine connects. Upon pipe B is the valve casing D, shown in detail in Fig. 2. It consists of a valve seat d, and lower and upper guides d' v for the stem e of the valve E. This valve is the regulating Valve and is shown in detailv in Fig. 3. Its body has a conical base and its upper portion has formed in it the grooves e which taper downwardly both in depth and width. The valve moves up toits seat to close and down to open the passage, and it is obvious that, on account of the tapering grooves e', the passage will be opened more, the farther down the valve moves, and will be contracted as the valve moves up. The valve seat d is formed with a central raised flange d2, which forms an annular chamber in said seat, the object of which will be hereinafter explained.

The valve E is normally held up to its seat by means of the lifting rod F, which is controlled by the spiral spring G. This rod passes through a sleeve Il lying within the air inlet pipe I3, and dependent from its top. The

lower end has a cap h having perforations h.

The spring G bears above on a collar on rod F and below'in a plate g (see Figs. 5 and 6) supported by side pins g on the fork of abell cranlr lever g2 pivoted at g3, and having its 55 vertical arm impinged upon by a setting screw g4, by means of which the tension of the spring Goan be regulated and restored as needs may require.

Secured upon the lower end of the rod F, 6o

Above the valve casing D is the connection I from the source of oil, and into this connection is tted the screw stem J which lies just above the stem of the regulating valve.

In thecompartments o. and a2 of the mixing chamber A are placed small rocks K, or 7c other suitable loose packing freely pervious to gas, Said packing being held in place by the gratings L.

A screw stem M passes np through the base of chamber A and lies under the lower end of rod F, serving to limit its downward movement.

N is a cock controlled air inlet to the base of the mixing chamber.

The operation of the device is as follows: 8c

The oil is supplied through connection I, and passing downVv into 'the valve casing D is checked by valve E, which is itself normally heldclosed'by the spring-actuated lifting rod F. Heated air is drawn into pipe B and passing downwardly, as Shown by the arrows, strikes the diskf on the lower end of the rod F. It presses down said disk which draws down its rod, and the valve E being thus relieved drops down, and the oil passes it and 9o flows down into the vaporizing chamber formed by sleeve H. This sleeve being exposed to the heated air in pipe B is itself made sufficiently hot to vaporize the oil within it,

a result which is increased by the spreading out of the oil as it flows down over the spring G and is directed outwardlyin comparatively thin sheets against the walls of the sleeve, by the coils of said spring. The vapor passes out through the perforations in cap h asis shown 10o by the arrows, and mingles with the air in chamber A. The cup shape of the disk f serves to catch whatever drip there may be and to spread it out to the action of the air to vaporize it. The mixture of air and vapor now passes down through the packing K by which its component parts are more thoroughly mixed, and the gas rendered lighter, if necessary, by more perfect vaporization due to contact with the heated packing. The necessary fresh air is supplied to the mixture through inlet N. Now, it will be observed that this operation is wholly automatic and the mixture is regulated to the needs of the engine, both in volume and proportions. The inrush of air to pipe Bis effected by the sucking of the engine and the volume and force of this air are wholly dependent upon the engine. Therefore, when alarge quantity of air is drawn in, it acts to lower the valve E to a greater extent, and this feeds more oil by means of its tapering grooves, and, consequently, the amount of gas formed is commensurate with the volume of air. Vhen less air is drawn in, the valve E is not opened so far and less oil is supplied, less gas is formed and the mixture is still proportionate and is proper for the requirements of the engine.

The object of the annular chamber around the valve seat is to provide a receptacle for sediment, so that foreign substances shall not pass into and clog the valve.

The object of the upper screw stem .I is to permit the regulating valve E to be opened by hand, whenever it may be necessary to let some oil down, as at the beginning.

The lower screw stem M forms an adjustable stop for limiting the movement of the regulating valve E.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a carburetor for explosive engines, a mixing chamber communicating with the engine, an air inlet communicating with said mixing chamber, a sleeve in said air inlet forming a vaporizing chamber exposed to the inrushing air and communicating with the mixing chamber, a normally closed spring controlled valve for feeding oil to the vaporizing chamber and a means actuated by the inrushing air for operating said valve substantially as herein described.

2. In a carburetor for explosive engines, a mixing chamber communicating with the en gine, an air inlet communicating withfsaid mixing chamber, a sleeve in said air inlet forming a vaporizing chamber exposed to the inrushing air and communicating with the mixing chamber, a normally closed springactuated valve for feeding oil to the vaporizing chamber and a means actuated by the inrushing air for operating said valve, consisting of a spring-controlled rod within said sleeve bearing on the valve and having a disk with which the air comes in contact said rod having the coils of its spring serving as conductors for spreading the oil outwardly and directing it in thin sheets against the walls of the sleeve whereby vaporization is accelerated substantially as herein described.

3. In a carburetor for explosive engines, a mixing chamber communicating with the enigine, an air inlet communicating with said mixing chamber, a vaporizing chamber exposed to the inrushing air and communicating with the mixing chamber, a valve for feeding the oil to the vaporizing chamber, and adapted by its movement to regulate the supply of oil, a spiral conductor in said vaporizingchamber for directing the oil outwardly in thin sheets against the inner walls of the vaporizing chamber and a means, actuated by the inrushing air for operating the valve to regulate said supply, substantially as herein described.

4. In a carburetor for explosive engines, the combination of the valve having a stem projecting above and below, and having the tapering grooves for regulating the feed of the oil, a valve casing consisting of a valve seat with a central raised rim, and the upper and lowerguides for the stem of the valve, and a means actuated by the indrawn air for operating said valve, substantially as and for the purpose described.

5. In a carburetor for explosive engines, the combination, of the valve having a stem pro jecting above and below, and having tapering grooves for regulating the speed of the oil,

a valve casing consisting of a valve seat with a central raised rim, and upper and lower guides for the stem of the valve, the inlet pipe for the indrawn air, a sleeve in said pipe forming a vaporizing chamber, the lifting rod, the spring surrounding the same whereby the rod holds the valve to its seat, and a disk or iiange on the rod exposed to the indrawn air whereby the rod is moved to permit the valve to open, substantially as herein described.

6. In a carburetor for explosive engines, the combination of a mixing chamber, an inlet pipe for the indrawn air, a sleeve forming a vaporizing chamber exposed within the inlet pipe and communicating with the mixing chamber, a regulating valve controlling the communication between the oil supply and the vaporizing chamber, the lifting rod in the vaporizing chamber having the spiral spring therein and adapted to control the regulating valve, said spring also serving to conduct the oil outwardly in thin sheets against the inner walls of the sleeve, and the liange or disk on the lifting rod exposed within the air inlet pipe, substantially as herein described.

7. In a carburetor for explosive engines, the combination of the air inlet pipe, the sleeve exposed therein, a valve for feeding the oil to the sleeve, the movable rod in the sleeve for controlling the valve and the spiral spring for actuating the rod and serving also as a channel for directing the oil-outwardly to the walls of the sleeve, substantially as herein described.

8. In a carburetor for explosive engines, the combination of the air inlet pipe, a sleeve IOO IIO

IZO

forming a vaporizing chamber exposed therein, the regulating valve inline with the sleeve for feeding the oil thereto, the spring-controlled rod for controlling said Valve and whose spring serves as a means for conducting the oil outwardly against the inner Walls of the sleeve, and the upper screw stein for opening the valve by hand, substantially as herein described.

9. In a carburetor, the combination of the air inlet, the sleeve forming a vaporizin g chamber exposed therein, the regulating valve for feeding the oil thereto, the rod for controlling said valve, a spring surrounding said rod and serving as a means for conducting the oil outwardly against the inner Walls of the sleeve and the disk or flange on the lower end hand. l

EDMOND R. 000K. Witnesses;

D. E. ALEXANDER, B. N. BUGBEY.