US1291532A - Heating apparatus for carbureters. - Google Patents

Description

W. JAY.

HEATING APPARATUS FOR CARBURETERS.

APPLICATION FILED MAY 11. I914.

Patented Jan. 14, 1919.

2 SHEETS-SHEET 1.

Winemss:

WEBB JAY, OF CHICAGO, ILLINOIS.

HEATING APPARKTUS FOR GABABURETERS.

Specification of Letters Patent.

Patented Jan. 14., 1919.

Application filed May 11, 1914. Serial No. 837,924.

To all whom it may concern:

Be it known that I, WEBB J AY, a citizen of the United States, residing at Ghlcago, 1n

the county of Cook and State of Illinols, have invented certain new and useful Improvements in Heating A paratus for Carbureters, of which the fol owing is a spec1- 'fication.

My invention relates to heating apparatus for carbureters adapted to be usedvin connection with automobileengines, or the like. It is well known that after an automobile has been standing idle and the parts thereof become cold great difiiculty is often experi-' enced in starting the engine again, owing to the failure of the fuel to vaporize readily and form an explosive mixture with the air drawn into the carbureter. This 'difliculty is especially marked in cold weather and causes great annoyance until the engine and associated parts have become thoroughly heated. A further difliculty is presented by the rapid decrease in the available supply of gasolene and the increased cost thereof, which makes it desirable to use as fuel some of the heavier hydrocarbons, such as kerosene. These heavier fuels are less volatile than gasolene, and do not vaporize so readily. Consequently, it is substantially impossible to start or continue to run an engine on these fuels, even in warm weather, unless means be. provided for preheating the fuel and the 'mixturein the carbureter.

0 One method which has been tried is that of causing the exhaust gases from the engine to circulate about the mixing chamber of the carburetor, thereby tending to heat the contents thereof. An apparatus embodying this principle obviously will not aid in the starting of the automobile before any exhaust gases have been formed, and it has been found that such a device is irregular and nnsatisfactory after the starting of the en- .I have therefore provided means whereby the air drawn into the carbureting chamber is heated independently of the exhaust gases. My device is very economical, and may usually be operated from the fuel supply for the fighting system. The degree of maintained uniform at all times, or adjusted to difi'erent values by means readily accessible to the operator. A means is further provided for heating the contents of the carbureting chamber after a mixture has been formed therein so that the explosive qua-lie eat may be ties thereof are greatly increased before being drawn into the engine cylinders. A further object of my invention is to arrange the heating elements so that they may also act as a foot-warmer for the operator.

Other objects will be set forth and made apparent in the following specification taken in connectio with the accompanying drawings, in whigh Figure 1 shows a side elevation of my improved heating apparatus assembled on an automobile, which is shown in dotted lines.

Fig. 2 is a perspective view of the forward portion of the automobile showing the relative position of certain parts of my apparatus.

' Fig. 3 is a longitudinal section taken throu h the forward portion of the automobile, s owing a side elevation of my heating apparatus with certain parts thereof in section; and

Fig. 4 is a vertical section through the burner.

Like numerals refer to like parts and elements in the several figures of the drawings, in which the automobile comprises a body 10, a hood 11, engine 12, dash 13, and footboard 14. These parts form no part of my.-

invention, and are shown merely as a basis for describing the application of my improved heating apparatus.

Referring to Fig. 3, the carbureter 15, which is located adjacent the engine 12, comprises the float chamber 16, the carbureting or mixing chamber 17, and the valve chamber and inlet duct 18. The carbureting chamber has a flange 19 at the upper portion thereof, by means of which a connection is made to the intake manifold which leads to the engine cylinders. A water-j acket chamber 20 is formed around the carbureting chamber and is provided with an inlet duct 21, through which water may be introduced to the interior thereof. This duct is closed by a lug 22, and an air escape valve 23 is provi ed in the upper wall of the wateracket chamber so that the air in said chamber may escape as the water is introduced thereto.

The air inlet duct 18 is connected, by means of a pipe 24, with the heating chamber 25, the walls of which are preferably lined with heat-insulating material. A valve 24 is provided in this pipe 24 adjacent the chamber 25, topermit the introduction of fresh air into said pipe. The heating chamher comprises side walls 26 and 27 and upper and lower walls 28 and 29, respectively. The side wall 27 is secured to the dash 13. This chamber is so located that the upper wall 28 is flush with the upper surface and forms a part of the foot-board 14, as shown clearly in Fig. 2. The lower wall 29 is provided with apertures 30 therethrough, which serve as inlets to the chamber 25. The wall 26 of said chamber is hinged along its upper edge, as shown at 31, and is maintained in closed position by the spring 32.

A gas burner 33 is located beneath the lower wall of the chamber 25, and is provided with the usual valve 34, by means of which the air supply to the burner may be regulated. The valve 34 seats upon the cap 35, which closes the lower end of said burner and which is apertured at 36 to permit a connection to the fuel supply. A flanged sleeve 37 is secured to the burner above the valve 34, and has seated thereon the cup member 38, which is adapted to receive and closely fit the cylindrical flue chamber 39. This flue chamber projects upwardly through an aperture in the lower wall of the chamber 25, and has an annular flange 40 formed on the upper end thereof, which seats upon the upper surface of the Wall and forms a tight connection therewith. A supply of. fuel gas is contained in the tank 41, from which a pipe 42 leads to the valve 43, which isv located beneath the hood 11 on the forward side of the dash 13. A handle 44 of the valve 43 projects through the dash in a position where it may be conveniently reached by the operator. A return pipe 45 passes from the valve 43 to the urner 33, where it projects through the aperture 36 in the cap member 35 and forms a tight connection therewith.

The following means is provided for lighting the burner: A hard rubber, or other insulating block46 is seated upon the upper surface of the cup member 38 around the burner 33, and has secured thereto an upwardly projecting metal terminal 47 which has an inturned point 48 just above one edge of the burner. An insulated conductor 49 is con-. nected to the terminal at the point 50, and passes through the cup member to a battery 51. The other terminal of the battery is connected by means of the insulated conductor 52 to an electric switch 53, which is located on the dash adjacent the valve handle 44. The other terminal of the'switch 531s connected by means of the insulated conductor '54 to the pipe 45. It is apparent that this pipe forms an electrical connection between the switchv and the burner,jso that when the switch is closed an electric spark will pass between the point 48 of the, terminal 47 and the upper portion 35 of the burner, thereby igniting the gas which discharges from the burner.

A water tube or pipe 55 is connected to the by regulating the burner 33 through the spiral port1on 55 of the tube 55 will cause a circulation of water through the water jacket chamber. 7 j

The operat'on of my device'is as follows: The operator turns the handle .44 of the valve 43, thereby introducing fuel gas under pressure to the burner 33. The switch 53 is then operated to close the electric circuit and cause a spark to pass between the point 48 and the point 35 on the burner, thereby lighting thesaid burner and causing the chamber 25 to be heated to a degree depending upon the adjustment of the valves 43 and 34. The wall 26 of the chamber 25 is hinged so that if an explosion occurs upon the ignition of the gas discharged from the burner 33, said wall will swing outwardly to-release the pressure within the chamber and prevent breakage of any of the parts thereof. The chamber 25 being heated, it is apparent that fresh air drawn inthrough the apertures 30 will pass through the pipe I 24 to'the mixing chamber 17 of the carbureter. The heated air drawn into the mixing chamber with the charge of fuel from the float chamber will cause said fuel to volatilize readily to form an explosive mixture in the mixing chamber. As previously described the heating of the coil 55 will .cause a circulation of hot water through the pipe 55 and the water jacket chamber 20; so that the chamber 17 will be heated independently of the hot air which is drawn into said chamber through the inlet duct 18. This ad-- a foot warmer in cold weather, since the air A therein and the walls thereof will. be highly heated by the burner 33. When it is desired to produce a relative variation in the temperature' of the air drawn in through the in let duct 18 without altering the temperature of the Water within the water jacket chamber, the valve 24 may be adjusted to introduce fresh cold air directly into the pipe 24. A simultaneous variation in the heat of the airwithin the pipe 24 and of the water within the chamber 20 may be made agency of the valves 34 and 43.

While I have described my invention in connection with the operation of an automobile, it will of course be apparent that it may be embodied in other structures which are adapted for difi'erent purposes and that my invention may be embodied in other forms of apparatus without departing from the spirit thereof as defined by the appended claims. I Y

I claim 1. In an automobile having a dash and a foot board, a carbureter havmg a carbureting chamber and located adjacent said dash,

. a heating chamber mounted beneath said foot-board and adjacent said dash, an air duct connecting said heating and carburet* ing chambers, and means to heat said heating chamber.

2. In a device of the class described, a carbureter having a carbureting chamber and a water jacket chamber around said carbureting .chamber, a heating chamber havin air inlets in the walls thereof, a supply 0 fuel, a burner arranged beneath said heating chamber to heat the air therein, an air duct leading from said heating chamber to said carbureting chamber, and a water pipe leading through said heating chamber and having each end thereof'communicating with said water jacket chamber.

3. In an automobile, a carbureter having a carbureting chamber and a water jacket chamber around said carbureting chamber, a heating chamber having air inlets in the walls thereof, said heating chamber being mounted adjacent the dash of said automobile, a supply of fuel, a burner arranged beneath said heating chamber to heat the air therein, an air duct leading from said heat-' ing chamber to said carbureting chamber, and a water pipe leading through said heating chamber and having each end thereof tem adapted to light said burner, and a switch to operate said system, said switch being located on said dash adjacent the handle of said valve.

In testimony where of, I have subscribed my name.

WEBB JAY.

. Witnesses: I

Gno. L. WILKLNsoN, GLEN E. SMITH.

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