US367936A - Hydrocarbon and gas-im pulse feeder for gas-engines - Google Patents

Description

(No Model.) E I 2 sheets-sheet 2l,

T. SHAW.

HYDROGARBON AND GAS IMPULSE FEEDER EUR GAS ENGINES. No. 36?;936. Patented Aug. 9, 1887.

N. PETER mumiagmplnr. washing D. c.

UNITED Y STATES PATENT OEI-ICEo THoMAs sHAw, or PHILADELPHIA, PENNSYLVANIA.

HYDROCARBON AND GAS-IMPULSVE FEEDER FOR GAS-ENGINES.

SPECIFICATION forming part of Letters Patent No. 367,'936, dated August 9, 1887.

Application tiled March 17, 1887. Serial No. 231,239. (No model.)

To all whom/'it may concern,.-

Be it known that I, THOMAS SHAW, of the city and county of Philadelphia, Pennsylvania, have invented a new and Improved Hydrocarbon Feeder and Gas-Impulse Feeder for Gas-Engines; and I hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention consists in the apparatus hereinafter explained, designed and arranged to saturate the gas with heavy hydrocarbon iiuids and impulse-feeder for gas-engines.

The object of the invention is to cheapen the running cost of gas-engines and to permit the use of gas-lights on thersame system of pipes. n

In order to enable others to use and practice my invention, I will proceed -to describe its construction and operation.

On reference to the accompanying drawings, which form part lof this spcciiication, Figure l represents a vertical section lthrough the apparatus for feeding heavy hydrocarbon iluids, which apparatus is operated and used only in connection with a gas-engine and an ordinary single-acting air-pump, all operating in the manner and for the purpose hereinafter explained. Fig. 2 shows the impulse gas feeder, and Fig. 3 a transverse view of the same.

Similar letters refer to similar parts.

The type of gas-engine selected, in connection with the apparatus in this description, is known as the ()tto gas-engine,7 the gas-feed pipe of which is connected at f to a vertical cast-iron cylinder, d, and the exhaust of which is connected with pipe a'with cast-iron cylinderb. The exhaust is caused to traverse the annular space and the bottom space between provided on its upper end with a weight, 7c. The said hub on cap 7iy and the central bolt of diaphragm is slotted for the reception of end of lever m, which lever is caused to actuate an ordinary air-valve, i, through valve-stein p, operating from fulcruin a. The metal domecap h of cylinder d is secured firmly in place by the bolts shown,\and is provided with a small aperture in top of said cap to permit the access of air above the diaphragm.

The hydrocarbon iiuid e is placed in cylinder d through ordinary aperture in side of cylinder on line of pipe f. Said aperture is afterward closed by ordinary screw-plug. The valves t t indicate the maximum and minimum quantities of contained iiuid. The tube u connects with ordinary single-acting air-pump operated from the crank of valve-axle, which gives one expulsion of air for each intake of gas. The eifect of each expulsion of air is to operate an atomizer, s, the compressed air in tube a leading to the jet of atomizer after passing through valve r. The amount of gas and atomized fluid of intake is controlled by the governor and regulating-valve in the same man- Iier as the gas is controlled without the attachment of said invention. If an excess of air should accumulate in chamber d by reason ofthe engine not requiring the excess quantity, the accumulated pressure in chamber d will elevate the diaphragm o and the slotted central bolt and. its attachment weight k to the elevated position shown, the effect of which is to close valve i', cutting off the supply of air, and permitting the air-pumpy to work on a compressing and expanding air-cushion, confining the'same to the spaces provided in the pump-passages until the engine has taken the excess and permitted the atomizer to opcrate, as before mentioned. The expulsion of air through the described atemizer can be set to give maximum quantity at the moment when the engine is taking its supply. This feature can be modified to suit the different make of engine. The cylinder e is Vkept to a temperature of two hundred or more degrees by absorbing the heat from the exhaust when traversing the space between the two cylinders. This elevation of temperature superheats the gas, and when combined with the described atomization gives a greater explo- IOO sive effect and enables the use of high fire-test oils acceptable to hre-insurance companies.

The weight l: is made more or less heavy, according to the pressure desired in chamber d, and a spring can be substituted for said Weight, if desired, without alteration in the result.

Agas-engine can be run with this device with less than one-fourth the amount of gas usually required for thesame power, the oils being substituted for the gas in an atomized condition. It practically converts a gas-engine into an oil-engine, with all the advantages ofagasengine ofcertainty ofa'ction when engine slows up for any cause, or when the engine is cold, &c., the gas comes into play for positive action.

The regular iiexible gas-bag w of gasengine is provided with a bow-spring, c, provided with pads of wood or other suitable material on its inner ends to prevent wear of bag. The spring is set to give a tension e'ompressingthe bag, but weak enough to permit the gas toexpand against the resistance of said spring. The purpose of said spring is to render it possible to use gas-lights on the same system of pipes to prevent the extinguish ment of the lights, and to prevent the great alteration of the same; also, to permit gas-engines to be run with smaller feed-pipes for gas, utilizing in most cases old pipes already in place. The immediate effect in operation of said spring c upon the gas-bag is to supply by quick contraction each supply of gasto the engine, and to recover its supply of gas at longer intervals between each impulse, giving a highly useful result.

I am aware that there has been combined with an elastic collapsible gasbag a springlever bearing on one side thereof adapted to be moved as it became distended and operatively connected willi a valve controlling the supply of gas to the bag. I am also aware that there has been combined with a gas-bag a spring attached to one side thereof and op erating to distend the bag as it becomes eollapsed, whereby it operates as a pump, and I disclaim such older devices; butlbelieve that I am the first to supplement the elasticity of the bag by a spring bearing on the opposite sides thereof in the manner shown, which construction insures that the bag shall be supported equally on both sides, so there is no danger of pushing the bag se far to one side as to rupture its connection with the metallic tubes to which it is united, as might be the case wcrea freely-suspended bag borne upon by a spring on one side only. Y Y Y It will be evident that the several parts can be considerably modified without any alteration in the result.

I do not in this ease claim any invention claimed in another application, Serial No. 231,365, iiled by me March 18, 1,887, showing a construction in some respects similar to that herein shown and described.

\Vhat I claim, and desire to secure by Letters Patent, is-

l. In gas-engines, the combination of the gas-cylinder d, containing a hydrocarbon oil, an atomizer situated in said cylinder above the oil, and asuperheating-jaeket surrounding the cylinder, substantially as described.

2. In gasengines, the combination of a receiver containing a hydrocarbon oil, an atomizer for spraying said oil and commingling it with air, an air-forcing mechanism for supplying air to the atomizer, a chamber in which the comminglcd air and hydrocarbon is received, a diaphragm operated by the pressure in last said'ehamber, and a valve for regu lating the passage of air to the atomizer coutrolled by said diaphragm, substantially as described.

In gas-engines, the combination, with a gasbag, of a bow-spring provided with pads bearing upon opposite sides of the bag, substantially as and for the purpose set forth.

THOMAS SHAW.

li tuesses:

Cona I. SIL-tw, GEORGE lt. Moons, Jr.

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