US1116325A - Carbureter. - Google Patents

Description

G. PONAROUSE.

OARBURETER.

APPLIOATION FILED JULY 7, 191a.

Patented Nov. 3, 1914.

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1 .Z'ATENT' FFC,

GEORGE PONAROUSE, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO STANDARD GAS GENERATOR 00., OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF ARIZONA.

CARIBURETER.

Specification of Letters Patent.

Application filed July 7, 1913. Serial No. 777,686.

To all whom it may concern:

Be it known that I, Gnono l PONAROUSE, a citizen of the United States, residing in the city and county of San Francisco and State of California, have invented new and useful Improvements in Carburetors, of which the following is a specification.

This invention relates to a carbureter es peoially constructed for volatilizing hydrocarbon liquids and mixing same with air, for lighting and fuel purposes.

The object of the present invention is to provide a simple, cheaply manufactured; easily-operated carbureter which is compact in construction and automatic in operation.

Another object of the invention is to provide means for automatically admitting air to the carbureter.

Another object is to provide means within the carbureting chamber which will prevent any unvaporized fuel from escaping through the gas outlet pipe.

Further objects will appear hereinafter.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Figure 1 is a vertical section of the apparatus. Fig. 2 is a section on the line X--X of Fig. 1.

Referring to the drawings: A indicates a carbureting chamber which is closed by a bell 2 of suitable construction, vertically movable and mounted in the water-seal 3, formed by a jacket l, inclosing the carbureting chamber. The lower end of the carbureting chamber is provided with a sloping bottom 5, and is connected at its lowest point 6 with an air inlet pipe 7, which in turn is connected with a rotary blower or fan 8, mounted on a platform 9, supported, as at 10, a suitable distance above the gas container.

Slidably mounted upon a gas outlet pipe 11, extending into the carbureting chamber, is a funnel-shaped member 12, having an inclined annular trough 13 formed on its inner surface, and operable in connection with the funnel-shaped member 12 is a spray nozzle 14, suitably secured, as at 15, upon the end of the air inlet pipe 7. 16 in dicates a fuel supply pipe, which is also connected with the bottom of the carbureting chamber, as indicated at 17, and suitably connected with same, for the purpose of conwhich will be later described. The rotary blower or fan 8 may be driven from any suitable source, but preferably an electric motor, indicated at 23, which in turn is con nected with a storage battery 24.

Suitably mounted, as at 25, is a knifeswitch 26, which is provided for the pur pose of making or breaking the electric circuit to the motor. For the purpose of automatically shutting off the air and fuelsupply to the carbureting chamber when the floating hell 2 has become charged, the fol-j lowing automatic switching mechanism has been provided.

Connected, as at 27 to the top of the bell 2, is a flexible cord 28 which extends in an upward direction and passes over a pulley 29, secured to the platform. From here the flexible cord extends in a downward direction and is secured, as at 30, to a wedgeshaped weight 31, slidably mounted in a suitable frame, or as here shown on the jacket; and attached to the weight 31, as at 32, is another flexiblecord 33, to the lower end of which is secured aball-shaped weight 34:. Similarly secured on the opposite side of the bell, as at .35, is another flexible cord 36, which passes over a direction pulley 37, and which is also secured to a wedge-shaped weight 31; and similarly secured, as at 32, is a flexible cord 33, carrying a weight 34; and suitably secured to the opposite sides of the jacket in the path of the sliding weights 3l31,as at 38, is a pair of bracket members 3939, the upperjsurfaces of which are sufficiently weights 34 and 34 when these have been deposited upon the top of the brackets; and by referring to the cross-section shown in Fig. 2, it Wlll be seen that the top surfaces of the brackets are slightly concave in cross inclined to retain the section to prevent the weights from rolling off the sides of the shelf when once deposited thereon.

By referring to Fig. 1 in the drawings it will be seen that a continuous, flexible cord 40 is secured to the weights 34-349. The ends of the cord &0 are extended in an upward direction on either side and pass over guide pulleys ll and re; and secured to the cord 40, between the guide pulleys i1 and i2 and the knife-switch 26, which is also secured to the cord 10, is a lever 43, pivotally mounted upon the blower 8, as at a l. The lower end of the lever is provided with a valve or disk 45 which is so positioned that it may be thrown into or out of register with the air inlet d6 of the blower.

Extending from the top of the bell 2 is a bracket 47, to which is secured a rod 48, suitably guided and slidable in outwardlyextending brackets 49. The lower end of the rod 48 is so positioned as to contact with a lever 50, secured upon the stem of the cutofl valve 22; and attached to the rod, as at 51, is another flexible cord 52, the other end of which is secured to the lever 50.

The operation of the apparatus will be as follows: Referring to Fig. 1 of the drawings it will be seen that the knife-switch 26 is placed in such a position as to close the circuit between the battery and the motor 23; the motor being direct connected to the blower will cause a continuous discharge of air through the pipe 7 and nozzle 14. The cutoff valve 22 is also shown in its open position, and will thus permit an inflow of gasolene or similar volatile fuel into the interior of the carbureting chamber. A certain amount of volatile fuel is thus constantly flowing into the nozzle 14, through the openings 14? and will consequently be projected or sprayed in an upward direction, as indicated in the drawing; the air;

having suflicient velocity and pressure to cause this spray action. The upwardlyprojecting spray of fuel and air causes the volatile fuel to be partly evaporated, and evaporation is further assisted by spreading the fuel in a thin film on the outer end and inner face of the conical member 12; the velocity of the incoming air being suflicient to carry the spray above the upper edge of the conical member will thus permit a certain amount of spray to lodge on the inner face of the conical member, where further evaporation is permitted. A large surface is thus provided which producesv a perfect evaporation of the fuel and any unvaporized fuel running down the inside surface of the funnel is prevented fromentering through the discharge pipe 11, bv being collected in the annular trough 13, formed near the lower end of the conical member. An

opening 13 is provided at the lowest point of the trough to permit such unvaporized fuel has been reached.

The out-flow discharging through the pipe 11 may be used for lighting or fuel purposes, as the case may be; and it will also be understood that the volume of gas consumed will vary according to the number of lights, or the amount of fuel used.

For the purpose of. automatically shutting-off the fuel and air supply to the carbureting chamber when the chamber has been completely charged, which takes place when the hell 2 has risen to a predetermined height, the automatic switching mechanism previously described has been provided. The operation of this part of the mechanism will be as follows: The moment the bell 2 has risen to a certain point with relation to the carbureting chamber A and the surrounding frame 10, it will be seen that the wedge 31 will be lowered into a position where it will force the weight 34. off the supporting shelf 39. The falling of the weight 3% off the shelf will cause a suflicient jerk upon the cord 40 to throw the knifeswiteh 26,-this bein sudden so as not to blow out the fuse of the motorinto the dotted line position shown, thus breaking the circuit to the motor and stopping the operation of the blower. The movement of the cord to will also rock the arm 13 into the dotted line position shown, where the valve 45 will close the intake opening 4:6 on the blower; the valve 45 being provided for the purpose of preventing any escape of vapor tl'nrough the pipe 7 and blower 8. The upward movement of the hell 2 to its upper position, which caused the release of the weight 34, is also transmitted through the cords 36 and 33 to raise the weight 3% to its supporting shelf 39, which is inclicated by dotted lines; the depositing of the weight an upon the bracket 39 being accomplished just previous to the release of the weight 34 on the opposite side, which release caused the opening of the electric circuit, etc. bell 2 is further transmitted through the entending arm ll and rod 48 to tighten the cord 52 and pull the arm 50 up, which closes the valve and consequently shuts off the fuel supply to the carbureting chamber. The volatile fuel contained in the bottom of the chamber will thus be permitted to flow back through the nozzle 14 into the lower bend of the air inlet pipe 7, and will thus act as a trap, which, in conjunction The upward movement of the with the valve 45, will prevent anybackflow of gas from the container. It will thus be seen that the provision of the valve 45, in connection with the trap provided in the lower end of the inlet pipe, will positively prevent any back-flow of gas through the pipe 7. A continued consumption of gas from the container will naturally cause the bell to lower as the supply within the chamber diminishes; and will, when a predetermined low level has been attained, lower the weight 31" into a positionwhere it will release the .weight 34 previously deposited on the shelf 39 when the bell assumed its upper position; the weight 34: being re.- leased at this point will fall into the full line position, indicated at 34:, and cause the cord to move in the direction indicated by arrow 0;, which will throw the knifeswitch 26 back into normal position and close the circuit to the motor, which will immediately be transmitted to operate the blower. The lever 13, secured to the cord, will also be thrown into the position indicated in Fig. 1, and will again permit air to enter the blower through the intake opening 46. The air pressure caused by the blower will consequently force the fuel out of the trap end of the pipe 7 and cause it to be thrown in an upward direction against the conical member and volatilized upon the surface of same and further caused to be mixed with the incoming air. The lowering of the bell 2 will also cause the weight 34 to be raised up and deposited upon the shelf 39 just previous to the release of the weight 34 on the opposite side, which caused the electric circuit to be closed, etc.; and the similar downward movement of the bell 2 is also transmitted, through the arm 47 and rod 48, to depress the lever 50 into the position shown in Fig. 1, where fuel is again admitted to enter the carbureting chamber. The cycle of operation will thus be continued until the container becomes fully charged, when the automatic switching mechanism will again be actuated by the rise of the bell, as previously described. By providing a slidably-mounted, conical member 12 it becomes possible to raise or lower this with relation to the discharge pipe 11 into such a position that a highly combustible mixture may always be secured, and any unvaporized fuel entering the upper end of the conical member 12 is prevented from entering the discharge by being collected and drained off by the inclined trough indicated at 13. A perfect, highly-combustible mixture is thus secured, which is automatically formed from time to time as the gas is consumed.

By providing a carbureter constructed as here shown, it becomes possible to use lowgrade fuels; any so-called fuel residue being prevented from collecting in the bottom of the'carbureting chamber, as the float 18 will only permit a certain fuel level within the chamber. The lower volatile grades of fuel which might have a tendency to collect in the chamber are constantly circulated, agitated and projected against the vaporizing surfaces of the conical member, and will thus finally be caused to vaporize, together with the more volatileproduct admitted to the carbureting chamber. Collection of residue within the chamber is thus positively prevented, and a lower grade of fuel than. heretofore generally used may be handled with a consequent low cost of operation to the consumer. l

The apparatus here shown is simple, compact and automatic in operation, and takes less space than any machine of similar capacity heretofore constructed.

The material and finish of the several parts of the apparatus are such as experience and judgment of themanufacturer may dictate:

Having thus described my invention, what I claim and desire to secure by Letters Patcut, is: a

1. A curbureter comprising in combination, a gas generatingchamber, a watersealed movable bell inclosing said chamber, an outlet pipe connected with said chamber, a conically shaped vaporizing member adjustably mounted on said pipe, means for projecting air and volatile fuel in a spray against said surface, and means automatically controlled by the bell for opening or closing the air and fuel supply.

2. A. carbureter comprising in combination, a gas-generating chamber, a watersealcd movable bell inclosing said chamber, an outlet pipe connected with said chamber, a conical-shaped vaporizing member adjustably mounted on said pipe, an annular trough formed on the inner surface of the conical-shaped member having a discharge opening, means for projecting air and volatile fuel in a spray against said surface, and means automatically actuated by the bell for opening or closing the air and fuel supply.

3. A carbureter comprising in combination, a gas-generating chamber, a watersealed movable bell inclosing said chamber, an outlet pipe connected with said chamber, a conically shaped vaporizing member adjustably mounted on said pipe, a pipe connected at one end witha source of air supplv and at the other end with the bottom of the chamber, a trap formed in the lower end of the pipe, a spray nozzle on the lower end of the air pipe within the chamber, a fuel supply pipe connected with the chamber, and means for controlling the admission of fuel to maintain a constant fuel level within the chamber with relation to the spray nozzle.

4:; A carbureter comprising in combination, a gas generating chamber, a watersealed movable bell inclosing said chamber, an outlet pipe connected with said chamber, a conically shaped vaporizing member adjustably mounted on said pipe, a pipe con-,

nected at one end with a source of air sup ply and at the other end with the bottom of the chamber, a trap formed in the lower end of the pipe, a fuel supply pipe connected with the chamber, means for controlling the admission of fuel to maintain a constant fuel level within the chamber, a pipe within the chamber connected with the air pipe, said pipe projecting above the fuel level, and a series of perforations formed in the lower end of said pipe.

5. A carburetor comprising in combination, a gas generating chamber, a water-sealed movable bell inclosing said chamber, an outlet pipe connected with said chamber, a conically shaped vaporizing member acljustably mounted on said pipe, a pipe connected s at one end with a source of air supply, and i witnesses. chamber, a trap formed in the lower end of the pipe, a spray nozzle on the lower end of WVitnesses:

at the other end with the bottom of the the air pipe within the chamber, a fuel supply pipe connected with the chamber, means for controlling the admission of fuel to f maintain a constant fuel level within the chamber withrelation to the spray nozzle, and means actuated by the bell for opening or closing the air supply.

'6. A ,carbureter comprising in combination, a gas generating chamber, a watersealed movable bell inclosing said chamber, an outlet pipe'connected with said chamber, a conically shaped vaporizing member adjustably mountedon said pipe, a pipe connected at one end with a source of air sup :ply, and at the other end with the bottom of the chamber, a trap formed in the lower end of the pipe, a fuel supply pipe connected with the chamber, means for controlling the admission of fuel to maintain a constant fuel level within the chamber, a pipe within the chamber connected with the air pipe, said pipe projecting above the fuel level, a jEiGllGS of perforations formed in the lower f end of said pipe, and means actuated by the bell for opening or closing the air supply.

In testimony whereof I have hereunto set my hand in the presence of two subscribing GEORGE PONAROU SE.

JOHN H. HERRING, W. W. HEALEY.

Copies 'of'this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, 31C.

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