US767485A - Carbureter. - Google Patents

Description

No. 767,485. PATENTED AUG. 16, 1904. F. O. MERREGE.

GARBURETER.

APPLICATION" FILED JAN. 5. 1904.

N0 MODEL.

PATENTBD AUG. 16, 1904,

P. G. MERREGE.

GARBURETER.

APPLICATION FILED JAN. 5. 1904.

2 SHEETS-SHEET 2.

E0 MODEL.

Wiigesses H J hr UNTTED STATES Patented August 16, 1904:.

FRANK (J. MERREGE, OF MARINE CITY, MICHIGAN.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 767,485, dated August 16, 1904:.

Application filed January 5, 1904. Serial No. 187,805. (No model.)

To (all whmn it may concern:

Be it known that I, FRANK C. MERREGE, a citizen of the United States, residing at Marine City, in the county of St. Clair and State of Michigan, have invented a new and useful Carbureter, of which the following is a specification.

This invention relates to certain improvements in apparatus for carbureting air and other gases.

The principal object of the invention is to provide a device for automatically replenishing the supply of gasolene or other hydrocarbon in the carbureting-chambers.

A further object of the invention is to provide an automatic replenishing means in which provision is made for forcing the liquid hydrocarbon to the carbureting-chamber in suflicient quantity to maintain the supply and to permit the excess of liquid to drain back to the initial supply-tank, to be again pumped to the carbureting-chainber at th next operation.

A still further object of the invention is to provide a carbureting apparatus in which the supply of gasolene to the carbonating-chambers is dependent on the movement of the airpump or movable bell of the aerometer.

A still further object of the invention is to provide a carburetor in which the supply of air will be uniform and its pressure constant without regard to fluctuations in pressure due to the operation of the air-pumping means.

l/Vith these and other objects in view the invention consists in the novel construction and arrangement of parts hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size, and minor details of the structure may be made without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings, Figure 1 is a sectional elevation of a carbureting plant arranged and constructed in accordance with the invention.

Fig. 2 is a sectional plan view showing one of the carbureting-charnbers. Fig. 3 is a detail Referring first to the air-supplying apparatus, the aerometer 1 has a movable bell 2, the lower edge of which is immersed in the liquidcontaining tank 3 in the usual manner, and from this aerometer leads a pipe 1, through which air may pass to the carbureting-charnbers and the air and gas mixed. To the central portion of the tank 3 is secured a rod 5, forming a guide for the central tube 6, that depends from the bell 2, and in small plants this may form the sole guiding means for the bell.

The upper portion of the standard 5 is secured to the bottom of the liquid-containing tank 6, and within the latter is a verticallymovable bell 7, through which air is admitted to the tank 8. At the upper end of the tank is a valve 9, carried by a float 10, that will close when the level of the liquid is below the normal when the air-bell is full, and the supply of air therein under pressure results in the lowering of the liquid-level within the bell and its increase between the periphery of the bell and the tank and also when the bell is discharging.

The airfrom the bell 7 is conducted to the aerom eter 1 through a pipe 11, and in said pipe is arranged a check-valve 12, which will prevent back flow of air when the bell 7 is raised during the pumping operation.

The frame of the apparatus carries a cylinder 1 1, in which is a tightly-fitting piston 15, that is connected at its lower end to the movable bell 7 by means of a rod 16. The lower end of the cylinder is in communication with a water-supply pipe 17, through which water under pressure is allowed to flow to act on the piston 15, and thus raise the bell 7. In the pipe 17 is a valve 18, that is operable by a lever 19 and suitable tappets 20,carried by the bell, the construction of this portion of the mechanism being that ordinarily employed in pumping devices of this class, and the parts are so arranged that when the bell descends one of the tappets will engage the lever 19 and open the valve to allow water to flow into the lower end of the cylinder 14- and raise the bell 7 to permit air to flow thereinto. hen the bell has completed its upward movement, the second tappet will engage the lever 19 and close the valve.

At a convenient point adjacent to the airpumping apparatus, and preferably located under ground for purposes of safety and to prevent freezing, is a tank 22,which may be supplied with gasolene through a feed-pipe 23, having a removable cap 24 arranged above the level of the ground. The tank is further provided with a valved vent 25, which is opened to permit the escape of air or gas while the tank is being filled. In the upper portion of the tank are two carbureting-chambers 26 and 27, which in the present instance are in the form of comparatively shallow chambers divided into liquid and air passages by means of a spirally-wound partition 28,formed of metal or other material and lined with burlap or other suitable material. At the central portion of the upper chamber 26 is an overflow pipe or tube 30, through which all liquid hydrocarbon in excess of the quantity required may flow into the lower chamber 27, and from the lower chamber 27 extends a tube 31 to permit excess of hydrocarbon to return to the lower portion of the tank 27.

At the under side of the main tank 22 is a vertically-disposed tube 34:, that communicates with the lower portion of the tank 22 through a valve connection 35, and the valve is connected to a check-valve, which will open to permit the gasolene to flow into the tube 34, but will close when the pressure in tube 34: is in excess of that in the tank. Vithin the tube 3% is a tube 37, the upper end of which is in communication with the upper carbureting-chamber 26. The lower end of this tube is open and is arranged adjacent to the lower end of the tube 34. From the upper end of the cylinder 14: extends a pipe 38, the lower end. of which communicates with the upper portion of the tube 34, and on top of the cylinder is a flap-valve 40, which will open to admit air to the upper end of the cylinder during the downstroke of the piston 15. When the piston moves up during the inflow of water, the air admitted to the upper end of said cylinder will be forced down into the pipe 38 into the tube 34 and will cause the liquid of the latter to flow up through tube 37 into the upper carbureting-chamber 26 and fiood the lower. Should the supply be in excess of that required, gasolene will overflow tube 30 into carbureting-chamber 27, and the overflow from the latter will return through tube 31 to the main supply-tank 22, and from this tank the tube at will be again replenished.

The air from the pipe 4: enters the lower carbureting-chamber 27 and after circulating through the spiral or other passage passes up through the central opening of chamber 27 and from thence escapes as carbureted air or through the tube A2 to the point of consumption.

It often occurs that carburetcd air is too rich in carbon for the purpose for which it is to be employed, and to reduce the gas the pipe 4: is provided with a branch at, leading to the mixer 43, and said mixer also communicates with the gas-pipe 42. A valve I?) is introduced in the airpipe 44c in order to control the quantity of air to be mixed with the gas.

At the bottom of the tank 22 is placed a screen 46 in order to prevent the passage of sediment to the tube 3%.

Having thus described the invention, what is claimed is 1. In carbureting apparatus, a gasolenesupply tank, a carbureting-chamber disposed at a point above the liquid-level of the tank and having a drainage connection to permit the return of excess gasolene to the tank, an aerometer for supplying air to the carbureting-chamber, a compartment in con'imunication with said gasolene-supply tank, and means operable on the movement of the air-bell for forcing a volume of air to said compartment and discharging the gasolene therefrom into the carbureting-chamber.

2. In carbureting apparatus, a gasolenesupply tank, a carbureting-chamber having a drainage connection therewith, a compartment in communication with the tank, a tube connecting the carbureting-chamber to said compartment, and means for forcing air into the compartment and causing the flow of gasolene from the compartment to the carburetingchamber.

3. In carbureting apparatus, a gasolenesupply tank, a earbureting-chamber having a drainage connection therewith, a compartment in communication with the gasolenesupply tank, a check-valve between the two, a tube connected at its upper end to the carbureting-chamber and dipping into the said compartment, and means operable by the airsupply apparatus for forcing air into said compartment and causing the flow of the gasolene therefrom.

4:. In carbureting apparatus, the combination with a gasolene-supply tank, of a carbureting-chamber arranged on the upper portion of the tank, and having a drainage connection therewith, a compartment connected to the tank, a check-valve in the connection between said compartment and the tank, a tube connected to the carbureting-chamber and having its lower portion arranged within the compartment, an air-pumping apparatus for forcing air into said compartment.

5. In carbureting apparatus, agasolenesupply tank, a carburting-chamberhaving a with the carbureting-cliamber, and an air-duct drainage connection therewith, an air-pump connecting the upper end of the cylinder to including a movable bell, a cylinder having at the upper portion of said compartment.

one end a water-inlet, and at the opposite end In testimony that I claim the foregoing as I5 5 an air-inlet, a piston disposed Within the 05 1- my own I have hereto affixed my signature in inder and connected 1to the air-bell, means for the presence of two witnesses.

supplying water unc er pressure to the lower w end of the cylinder, a compartment in com- FRANK MERREGE' munication with the gasolene-supply tank, a Witnesses: v I check-valvedisposedintheconnectionbetween R. B. WV. BEATTIE,

the two, a tube connecting said compartment FRED. R. BEATTIE.

Images