US890494A - Carbureter. - Google Patents

Description

PATENTED JUNE 9, 1908.

0. E. BYRON.

GARBURETER.

APPLICATION FILED AUG. 13, 1907.

2 SHEETSSHEET 1.

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w. m 3 S/Q h m? M W M @M A TTORNEYS PATBNTED JUNE 9, 1908.

0. E. BYRON.

GARBURETER.

APPLICATION FILED AUG. 13, 1907.

2 SHEETS-SHEET 2.

W/TNESSES INVENTOH UJ'raZF. figrarz A TTOHNE Y8 ORRA E. BYRON, OF SAN FRANCISCO, CALIFORNIA.

GARBURETER.

No.'s90,4.94.

Specification of Letters Patent.

Patented June 9, 1908.

Application filed August 13, 1907. Serial No. 388,301.

ing chamber, the admission being controlled ultimately by the condition of the vacuum within the mixing chamber.

Reference is to be had to the accompanying drawings forming a part'of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

"Figure 1 is a central vertical section through my iniproved carbureter, showing the relative positions of the various valvular members for regulating the air supply, and further showing the position of the s raying nozzle and of the heating acket for t e gases traveling from the carbureter to the engine; Fig. 2 is a central section somewhat similar to Fig. 1, but" taken upon the line 22 of Figs. 1 and 3,looking in the direction of the arrows and showing a float-controlled needle valve for regulating the supply-of hydrocarbon to the carbureter; and Fig. 3 is a horizontal section upon the line3-3 of Fig. 1

looking in the direction of the arrows and showing the relative arrangement of the valvular members.

A hollow body portion 1, is provided with a reduced portion 1 and is tapped by an inlet pipe 2 and an outlet pipe 3, the latter leading to the engine. ferent diameters, are connected integrally together and are disposed concentrically. The cylinder 4 is connected with the reduced portion 1 by ribs 1*. These cylinders are provided respectively with a port 6 and two ports7, all having the form of arcuate slots. A partition 8, of annular conformity, encircles the cylinder 5 and is set off therefrom so as'to form an annular compartment 9, encircling said cylinder.

Slidably mountedwithin the cylinder 5 is a smaller cylinder 10, provided'with a substantially annular portion 11 connected integrally therewith and spaced therefrom by arcuate slots 12. These slots constitute Cylinders 4, 5, of difports and are adapted to register with the ports 7 and are of greater depth than the latter. A spraying nozzle 13 is provided with a needle valve 14 operated by hand. This needle valve regulates the flow of liquid hydrocarbon through a passage 15 and is used for' vaporizing said hydrocarbon as the latter is discharged upwardly into the cylinder 10.

A disk 16 is provided with an upturned flange 17 of annular conformity, integral therewith and slidably engaging the inner surface of the cylinder 4. The-disk 16 is also provided with openings 16. The disk 16 with its flange 17 and cylinder 10 having its annular portion 11., together constitute a valvular member. This valvular member as a whole is-movable relatively to the cylinders 4, 5.. The proportions of the parts are such that when the valvular member is lowered, the annular portion 11 gradually uncovers the ports 7 and when these are completely open, the flange 17 begins gradually to uncover the port 6. r

A valve stem is shownat 18 and is connected with a diaphragm 19 mounted within a diaphragm chamber 20. Thevalve stem 18 terminates in an adjustable head 21 which is engaged constantly by a spiral spring 22 encircling the valve stem. The normal position of the diaphragm 19, when the device is idle, is the one shown. When, however, there is a partial vacuum below the diaphragm 19, the valve member descends to a greater or lesser extent dependent upon the pull exerted by the vacuum.

A jacket 23 of annular form encircles the outlet pipe 3 and is provided with radially disposed tubes 24. These tap into pockets 25 provided in the outlet pipe 3. Exhaust gases of combustion are supplied into the acket 23 by a pipe 26, whence they pass into the pockets 25 and outwardly through a pipe 27, thus making their escape. In doing this they heat the air and vapor passing through the outlet pipe 3. I

The body portion 1 is provided with an extension 28 in which is a cylindrical weight 29. Below the extension 28 and integral therewith is a threaded boss 30 having an aperture 31 disposed centrally thereof. This boss is engaged by a threaded pipe 32 through which the hyd ocarbonliquid is supplied to the carbureter. A guide 33 is dISPOSQd over the aperture 31 and extending through this guide is aneedle valve 34' extending entirely through valve being shown at 35 and projecting through the upper surface of the ody portion 1.

Mounted upon a piyot 36 is a lever 37 having an upwardly projecting end 37*. A float 38, having substantially the form of a hollow ring, encircles the smaller cylinder 10 and rests upon a volume of hydrocarbon liquid 40 contained in the body portion 1.

Whenever the body portion is nearly empty, the ring float 38 being no longer buoyed up rests partially upon the end 37 a of the lever 37, thereby turning the lever and raising the weight 29. The needle valve 34 is therefore lifted from its seat and the liquid flows in. This lifts the ring float, allowing the lever37 to rise, and the weight 29 causes the needle valve 34 to again close the aperture 31. In this way the inflow of gasolene is so regulated that the supply within the carbureter is approximately constant.

The operation of my device is as follows:

The inlet pi e 2 communicating with the air,

and the out et pi e 3 being connected with the engine, and t e latter being in action, a partial vacuum is produced below the diaphragm 19. This causes the diaphragm to descend and the annular member 11 partially uncovers the orts 7. being opened y hand to a ro er de ree and the suction bein continue tlie fueI hydrocarbon is spraye from the nozzle 13 and vaporized, the va orization being ir'n roved by the liquid striking against the un er side of the disk 16 which thus servesas a baffle. The admixture of air and vapor constitutes the explosive aeriform body employed for driving the engine. The explosive mixture next passes out throu h the outlet pipe 3 and in so doing-is heate as above described.

The ports 7 are the ones ordinarily used, and hence I designate themas the main ports. When, however, the tension of the vacuum exceeds a certain predetermined limit, and the diaphragm 19 is depressed accordingly so that the ports thus become partially or entirely uncovered, the supply of air is greatly increased for the reason that air is now ad- The needle valve 14 through of varying quantities of air, and a vacuum-controlled diaphragm connected with said valve member for actuating the same. 4 4

2. In a carbureter, the combination of a large cylinder rovided with a port, a small cylinder provi ed with a port, a valve member provided with a flange slidably mounted within said large cylinder and further provided with a portion slidably mounted within said small cylinder, said flange and said small portion pf said valve member being adapted to uncover said ports in a predetermined order of succession, and vacuum-controlled mechanism for moving said valve member.

3. In a carbureter, the combination of a body portion provided with a main port and with an auxillary port, and a valve member provided with a portion normally covering said main port, and with another portion normally covering said auxiliary port, said portions of said valve member-being so positioned as to uncover in succession said main port and said auxiliary port, and vacuumcontrolled mechanism connected with said valve member for moving the same.

In testimony whereof have signed my name to this specification in the presence of two subscribing witnesses.

' ORRA E. BYRON. Witnesses:

FELIX GRANT, A. E. YORK.-

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