US731999A - Carbureter and governor for hydrocarbon-engines. - Google Patents

Description

No. 731,999. PATENTED JUNE23, 1903.

l L. T.- HAGAN.

OARBURBTER AND GOVERNOR FOR HYDROGARBON ENGINES APPLICATION FILED AUG.19- 1902.

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GARBURETER AND GOVERNOR FOR HYDROGARBON ENGINES.

APPLICATION FILED AUG.19, 1902.

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UNITED STATES Patented June 23, 1903.

PATE T OFFICE.

LOUIS T. HAGAN, OF WINCHESTER, KENTUCKY, ASSIGNOR OF ONE-HALF TO CHARLES HAGAN, OF WINCHESTER, KEN"UCKY.

CARBURETER AND GOVERNOR F OR HYDROCARBON-ENGINES.

SPECIFICATION forming part of Letters Patent No. 731,999, dated June 23, 1903.

Application filed August 19,1902. Serial No. 120,216- (No model.) I

To all whont it may concern.-

Be it known that I, Lours T. HAGAN, a citizen of the United States, residing at Winchester, in the county of Clark and State of Kentucky, have invented new and useful Improvements in Carburetors and Governors for Hydrocarbon-Engines, of which the following is a specification.

This invention relates to a carburetor and. governor for use in connection with engines employing liquid hydrocarbon as the operating agent; and the object of the invention is to provide a simple and effective apparatus of this character wherein the air and hydrocarbon are properly and thoroughly admixed and their automatic supply to the cylinder or other part of the engine secured.

The device includes in its construction a reservoir or receptacle for the liquid hydrocarbon, which may be gasolene or any other fluid of this character, a peripherally-perforated Wheel, and a chain supported by the periphery of said wheel and freely suspended or hanging in said reservoir, by reason of which when the wheel rotates the chain, which is preferably endless, will take up a supply of the liquid fuel, which runs from the upper end of said chain through the perforations in the upper side of the wheel and into a mixingchamber, the fluid as it enters the perforations being mixed with atmospheric air drawn into the apparatus by the suction of the engine. The chain and wheel by their operation insure a uniform supply of hydrocarbon to the engine.

In the present case the mixing-chamber embodies two tubes, each perforated and one inside of the other, the outer tube being fixed relatively to its companion and having openings through which atmospheric air is adapted to pass and through which the commingled hydrocarbon and air also pass. The inner tube is slidable in its companion and is automatically operable by governing mechanism, so as to regulate the amount of air and bydrocarbon that are to be supplied to the engine.

The invention includes other objects and advantages which, with the foregoing, will be set forth at length in the following description, and said invention is clearly illustrated in the accompanying drawings, formingapart of this specification, and in which- Figure 1 is a vertical sectional elevation of a carbureter and governor embracing my improvements. Fig. 2 is a transverse sectional elevation, the section being taken in the line 2 2, Fig. 1. Figs. 3 and 4 are detail elevations showinga different arrangement of ports for the admission of air and vapor or gas.

Certain of the parts of the apparatus are housed in a casing 5, the latter having at its inner enda nipple 6 to receive the supply-pipe 7, which leads to the engine for the purpose of delivering thereto the gas or hydrocarbon vapor.

The outer end of the casing 5 is closed by a cap or cover 7, from which the hub 8 extends, said hub being adapted to receive the hollow shaft 9, and said hollow shaft in turn receives a second shaft or spindle 10 for sliding movement therein, said shaft 10 beingintermittently reciprocated, as will hereinafter appear, by the governing mechanism. The said shaft 9 projects at its outer end beyond the hub or hearing 8 and fixedly carries the pulley or band-wheel 11, adapted to be operatively connected to the engine, which I have not deemed it necessary to show, or the part 11 need not be of the kind set forth, for it may consist of any suitable power-driven ele ment capable of transmitting a continuous rotary motion to the shaft 9 from the engine.

The inner end of the hollow shaft 9 is incased by the casing 5 and carries a wheel 12, made in the form of a disk, having an inwardly-disposed annular flange perforated, as at 13. Upon the perforated flange of the wheel 12 is a belt or chain 14, which is shown as being endless and which is freely suspended from said wheel and hangs in the reservoir or receptacle 15, connected and usually made integral with the casing 6. The periphery of the wheel 12 is provided with parallel flanges 16, between which the upper end of the belt or chain is disposed and which serve to hold the same against lateral motion.

A pipe, as at 17, is tapped into the lower end of the reservoir 15 and is connected with some suitable source of liquid-fuel supply (not shown) for carrying the same into said reservoir.

The wheel 12 rotates in the chamber 18 near the outer end of the casing, and a port 19 connects said chamber with the atlnosphere for the purpose of admitting atmospheric air into the chamber to be admixed with the hydrocarbon to thereby vaporize the same, it being understood that the atmospheric air passes through the perforations 13 with the hydrocarbon to secure the desired result. A tube 20 is fitted in a cylindrical seat in the casing 5, its outer end being disposed within the perforated wall 12 and having in alinement with the perforations 13 a series of ports or inlets 21. This tube has its outer end closed, and it is suitably fixed in place against turning and longitudinal movements and incloses a second tube 22. The said inner tube has at its outer end a series of ports or inlets 23, adapted at certain times to fully register with the ports 21 in the outer tube-that is to say, these ports are brought into full registration when the maximum supply of gaseous vapor is' to be delivered in the space within the inner tube, which space constitutes a mixing-chamber. At a point forward of the ports 21 the outer tube is provided with other ports 24, which are adapted at certain times to fully register with substantially similar ports 25 in the inner tube 22.

The casing 5 is provided with an annular chamber 26, surrounding the inner tubes intermediate their ends, and the air-inlet 27 opens from the atmosphere into this cham- ,ber, so that the atmospheric air can pass through the ports 24 and 25 into the mixingchamber to be admixed with the gaseous vapor within the inner tube. Said inner tube has'a sliding movement within itscom panion, so as to regulate the amount of air and gas supplied to the engine.

The inner tube 22 consists of a series of sections separated from each other in order to provide for the ports 25 and are united by the strips 28, connected at their inner ends to the spider 29, the central body of which is adapted tofixedly receive the inner end of the slid'able shaft 10. The inner tube, which, it will be seen, is in communication with the supply-pipe 7, extends inwardly a short distance beyond the outer tube, and this extended portion is diametrically slotted, as at 30, to receive the free end of the lever 31, which bears between its ends against the projection 32 upon the spider 29. The upper end of the lever-31 is fulcrumed in one branch of a substantially L- shaped tubular extension 33 upon the band or ring 33, the other branch of said extension being adapted to receive the spring-actuated plunger 34:, the inner end of which is adapted to bear against the said lever below its fulcrum, so as to swing said lever outward, and thereby through the projection 32 and spider 29 move the shaft 10 outward in opposition to a centrifugal governor, hereinafter more particularly described. The band 33 is supported for rotation upon the nipple 6, and it will be evident that by turning the same, which can be accomplished by manipulating the tubular extension 33, the inner tube 30, through the lever 31, can be turned so as to regulate the amount of gaseous vapor passing through the ports 21 and 23. The lever 31 extends up into the tubular extension 33 through a circumferential slot 35 in the nipple or boss 6.

The wheel 11 sustains the weighted anglelevers 36, constituting a convenient form of governor, and the weights of which will be thrown outward, as is the custom in this class of appliances, when the engine is run at a high speed. The non-weighted arms of the anglelevers 36 are fitted in a circumferential channel or groove in the nut 37, threaded onto the extreme outer end of the slidabl-e shaft 10 and held in position by the check-nut 38. As the speed of the engine increases the weights of the levers 36 are swung outward, so that said levers serve, through the agency of the nut 37, to slide the shaft or spindle 10, and consequently the inner tube 22, inward, thereby decreasing the amount of air and gaseous vapor supplied to the mixing-chamber through the ports 24 and 25 and 21 and 23 As the shaft 10 moves inward the lever 31 is moved in a corresponding direction, thereby placing the spring of the plunger 34 under compression, and as the speed of the engine is reduced the spring by relaxing acts against the lever 31 to return the same to its normal po-' sition, the same result following with respect to the weighted levers 36. 7

By turning the band 33 upon the nipple 6,

which can be secured by grasping the tubular extension 33, the inner tube 22 can be manually turned, so as to regulate the amount of gaseous vapor entering the ports 21 and 23, to thereby produce the desired proportion of vapor to air.

The shape and number of the air and vapor openings in the tubes can be varied, so as to give the proper proportions of air and vapor at all times. Thus when the engine is running ona light load or no load and the air and vapor openings are nearly closed the proportion of the air to vapor required for the operation of the engine is greater than when the engine is running on a full load. This regulation can be accomplished in several ways-for example, by making the openings described of irregular shapes, as shown in Figs. 3 and 4, so that the area of air-openings 39 will be reduced faster than the vapor-openings a0.

It will be understood that the governor serves to automatically operate the inner or sliding tube 22, to thereby properly regulate the amount of air and gaseous vapor admitted to the mixing-chamber and in accordance with the load upon the engine. By reason of the form of hydrocarbon-supply means hereinbefore described I am enabled to secure a IIO steady uniform supply of the liquid fuel. These results are secured by an apparatus in which no small openings are present and in which valves and floats are dispensed with, as it is found that the latter in practice frequently become obstructed or deranged by dirt or water in the liquid fuel or gas.

I do not limit the invention to the exact construction hereinbefore set forth, for said invention may be materially modified within the scope of my claims.

Of course the inner tube 22 may be operated in other ways than that hereinbefore described.

Having described my invention, what I claim is 1. In an apparatus of the class described, a casing having a mixing-chamber, a peripherally-perforated rotary wheel in said casing, a belt extending from the periphery of said wheel, and the perforations of the wheel being adapted to communicate with said mixing-chamber, a reservoir for hydrocarbon in which said belt hangs, and means for the supply of air to the hydrocarbon.

2. In an apparatus of the class described, a casing having a mixing-chamber, a peripherally-perforated rotary wheel in said casing, a belt suspended from the periphery of said Wheel and the perforations of the wheel being adapted to communicate with said mixing-chamber, a reservoir for hydrocarbon, in which the belt hangs, and means for the supply of air to the hydrocarbon, a shaft carrying said wheel and extending from the cas ing, and a power-driven member upon the shaft.

3. In an apparatus of the class described, a casing, tubes within the casing, one tube inclosed by the other and each of them having ports adapted to register, and the inner tube being slidable in its companion, a peripherally-perforated rotary wheel in said casing, the perforations of which are adapted to communicate with the ports in said tubes, a belt suspended from the periphery of said wheel, a reservoir for hydrocarbon, in which said belt hangs, means for the supply of air to the hydrocarbon, a chamber surrounding the tubes intermediate their ends and adapted to communicate with certain of the ports thereof, said chamber openinginto the atmosphere, and means for automatically or manually operating said inner tube.

I. In an apparatus of the class described, a casing, tubes within the casing, one tube inclosed by the other and each of them having ports adapted to register, and the inner tube being slidable in its companion, a peripherally-perforated rotary wheel in said casing, the perforations of which are adapted to communicate with the ports in said tubes, a belt suspended from the periphery of said wheel, a reservoir for hydrocarbon, in which said belt hangs, means for the supply of air to the hydrocarbon, a chamber surrounding the tubes intermediate their ends and adapted to communicate with certain of the ports thereof, said chamber opening into the atmosphere, a hollow shaft carrying said wheel and extending from the casing, a power-driven member upon said hollow shaft, a second shaft incased by the hollow shaft and connected with v the inner tube, and means for automatically tubes intermediate their ends and adapted to communicate with certain of the ports'thereof, said chamber opening into the atmosphere, a centrifugal governor carried by said powerdriven member and connected with said second shaft for operating the same in one direction, and means for operating said second shaft in opposition to the governor.

6. In an apparatus of the class described, a casing, tubes within the casing each having ports adapted to register with each other and one tube being inclosed movably within the other, a spider connected with the inner tube, a peripherally-perforated rotary wheel in the casing, the perforations of which are adapted to register with ports in said tubes, a hollow shaft connected with said wheel and extending from the casing, a power-driven member fixed to said shaft, a second shaft extending through the hollow shaft and connected with said spider, a centrifugal governor upon the power-driven member, connected with said second shaft, a spring-actuated lever adapted to engage said spider and extend through diametrically opposite slots in the inner tube, a rotary part carrying said lever, air-supply means for the hydrocarbon, a belt suspended from the periphery of said wheel, and a hydrocarbon-reservoir in which the belt hangs.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

LOUIS T. HAGAN.

Witnesses:

Jon. B. RAMsnY, RE. BRUCE.

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