US403367A - Gas or gasoline engine - Google Patents

Description

l (No Model.) 2 sheets-sheet 1.

L. G. & B. PARKER;

l GAS 0R GASOLINB ENGINE. No. 403,367. v Patented May 14, 1889.

WIZWESSES (No Model.) Y 2 sheets-sheet 1 L. C. 8u B. PARKER. GAS 0R GASOLINE ENGINE.

No. 403.367.. Patented May 14, 1889.

N. PETERS. Phuxa-Llmognpm. wnshingwn, n c.

NTTED STATES PATENT FFICE.

LEVIS C. PARKER AND BEAUMONT PARKER, OF KANSAS CITY, MISSOURI.

' GAS OR GASOLINE ENGINE.

SPECIFICATION forming part of Letters Patent N o. 403,367, dated May 14, 1889.

Application filed J' annary l1, 1889. Serial No. 296,088. (No model.) I

To CZZZ whom t may concern:

Be it known that we, LEWIS C. PARKER and BEAUMONT PARKER, citizens of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Gas or Gasoline Engines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use `the same.

This invention contemplates certain improvements in gas and gasoline engines, being adapted to use ordinary illuminating, natural, or gasoline gas.

It has for its object to secure the greatest possible reliability, simplicity, and economy, having an ignitor that is simple and positive and an automatic carburetor of atmospheric air that is arranged directly in alignment with the inlet-passage of the charges of the cylinder.

The nature of the invention consists of the sundry combinations of parts, substantially as hereinafter set forth and claimed.

In the accompanying drawings, Figure lis a partly side and partly sectional elevation of our improved gas and gasoline engine. Figs. 2 and 3 are enlarged detailed sectional views of the carburetor. Fig. 4 is an enlarged detailed sectional view of the ignitor and burner. Fig. 5 is also an enlarged detailed side view of the carburetor, parts bein gbr oken away; and Fig. 6 is a similar view in horizontal section of the burner and its supply- 1 e. p In the embodiment of our invention we employ an engine, A, the air-tight-tting pistons with their connecting-rods and the iiywheel being omitted, these being the same as usually employed in this class of engines. The crank-shaft a carries a pinion or gear wheel, a', gearing with a second larger pinion or gear-wheel, a2, the latter being twice the diameter of the former pinion or gearwheel and journaled upon a stud of the engine-frame. Applied to the gear-wheel a2 is a cam-wheel, a3, upon the periphery of which is a cam projection, I, for controlling the igniton, a cam, O, for actuating the exhaustend opening into the passage b2.

lever or bar a4, is disposed a spring, al, (preferably a coiled one,) that constantly or normally holds the rollers a in contact with the face of the cam-wheel a3.

The exhaust-chamber B is provided with an exhaust-valve, b, whose spring-encircled stem, as before intimated, is in contact with the lever or bar a4. It (the chamber B) has also an exhaust-support, b4, a passage, b2, for the charges entering the cylinder, and a passage, ZJ, leading directly into the cylinder. This passage b serves the twofold purpose to permit all the charges to, enter the cylinder and to permit the products of combustion to pass back out through it on their way by the exhaust-valve b and through the exhaust-port b4. Therefore itwill be seen that there is but one opening or passage to control leading into the engine-cylinder, and as the exhaust-chamber is located directly over the passage Z9', as it is, all liabilities of leakage are prevented. Connecting with the inlet-passage b2 is the ignition-chamber E, and with the latter connects the chamber having the check-valve D, which in turn connects with the carburetorchamber C, all thus being virtually an eXtension or prolongation of the inlet-passage b2,

each, however, being peculiar to itself-v adapted for its respective purpose-but forming a continuous passage or entrance for the combustible gas for the charges to the cylinder.

In the ignition-chamber E is the rod or stem Z', having at its upper inner end a head or valve which fits into the lower open end of the tube or thimble Z, with its said latter The stem or rod Z has connection at its lower outer end with a lateral arm of a bar or rod, Z2, having IOO a slotted connection, Z4, with the bar or lever a4. The rod or bar Z2 is encircled by a spring, Z3, the purpose of which is to normally hold the valve or head of the stem or rod Z up to its seat at the lower end of the thimble or tube Z. The slotted connection Z4 allows the bar or lever a4 to have a limited upward movement without affecting the valve or the stem or rod Z when seated. The stem or rod Z is suitably packed, as shown at Z5, a screw-cap at the lower end of the stem or rod inclosure holding the packing removably in place.

It will be observed that the cam l on the cam-wheel a causes the bar or lever a4 and rod Z2 to move the valve of the rod Z from its seat at the lower end of the tube or thimbleZ at the Vmoment the compressed charge is to be ignited, holding it open during the powerstroke and during the exhaust-stroke, allowing the products of combustion to be exhausted out of the thimble down to atmospheric pressure. The automatic mechanical carburetor consists of a horizontal chamber,

from which depends a vertical chamber or` cylinder made in a downward extension, R, of said horizontal chamber, and which vertical chamber has a further downward-extending but contracted portion or extension, c', which connects with the gasoline-supply by a pipe, c5, having a cock, cs.

Passing vertically through the carburetorchambers is the stem c, suitably connecting with a rod or bar, cx, which passes up through and is shouldered above the lever or bar a4, as at cxx, and is controlled by the governor. (Not shown.) In the lower part of the stem or rod c is a narrow passage, c2, the lower portion of which is enlarged into a chamber containing a ball-valve, c3, which finds its seat at the bottom of the latter chamber, said passage c2 at its extreme lower end being flared for the ready entrance of the gasoline to the valve-chamber past the valve c3. The stem is also provided with a series of horizontal serially-apertured perforated plates, c5, out upon which the gasoline is ejected or sprayed from the passage c2 through apertures c4, made in said stem and communicating with said passage. Around the upper part of the stem c is arranged a spring, c7, which tends to force the stem down into the contracted extension of the vertical chamber of the carburetor C.

N is the burner, which enters the inclosure or chamber surrounding the thimble or tube Z and subjects the latter to a heating action. The burner has in its sides a number of series of air-inlets, n2 n3, and is screwed to a plug or coupling, al, having a narrow passage, n, through it, and connecting with a tube or pipe, n, having a cock, m, and fillingtube Z3, and leading to the gasoline-tank L. This pipe or tube n is properly filled with a fibrous material, a7, which serves to assist in vaporizing the gasoline in its passage through the hot tube or pipe a6. Vith this arrangement a most uniform perfect fiame issues from the burner for heating the thimble or tube Z, which may be inclosed in a larger tube or jacket, if desired; but this is not necessary, as this forced or jetted flame (the force or pressure under which the same is obtained will be explained farther on) requires no chimney to give it draft.

In order to render the flame of the burner more reliable and efficient, the gasoline in the tank or chamber L is subjected to uniform atmospheric pressure in the following manner: The tank or chamber L is open at top and closed at bottom and provided intermediately of these with a diaphragm or partition, L having a central orifice surrounded by a slender air-tube, L2. In the lower compartment of the tank or chamber is placed the gasoline, while the upper compartment thereof is supplied with water rising nearly to the top of the open tube L2. Also in the lower compartment of the chamber or tank L is a tube, on', reaching nearly to and taking the gasoline from the bottom of said compartment and feeding it to the burner tube or pipe N. lVithin the upper compartment of said chamber or tank L is the freely-moving sheet-metal tube P, having a closed top. The lower open end of the cylinder dips a short distance into the water and is sustained thereabove by atmospheric-air pressure, and by its own weight serves to force a column of air-pressure through the tube L2, thus transmitting it (the pressure) to the gasoline or liquid below, which latter is forced up thro ugh the tube m into the burner pipe or tube N. The air under the cylinder P does not pass out, but keeps up a uniform pressure on the gasoline, and air passes into or enters the lower compartment just in volume as the gasoline is used up by the burner. Weights p may be used, if desired, to give more pressure, if necessary. ln filling the chamber or tank L the cylinder P is suspended by a catch (not shown) at the upper edge of the chamber or tank L, to prevent the air-pressure from passing out of the tube Z3.

The operation is as follows: As the stem or rod c is raised, gasoline is drawn into the eX- tension-passage c below the valved end of the stem or rod c, and as said stem or rod is depressed the gasoline or liquid rushes past the ball-valve c3 and up into the passage-way c2 of the stem or rod c and out of the orifices e4, being, as previously stated, thereby finely sprayed upon the surfaces of the plates c5. As the piston in the cylinder of the engine A sucks in the charge, the stem, with the plates c5, is raised into the upper part of the horizontal chamber of the carburetor directly in the path of the incoming air, which, having an affinity for gasoline, readily becomes carbureted, forming an inflammable mixture that passes through the cheek-valve D and directly past the mouth or open end of the tube or thimble Z.` It then passes through the passage Zvz into the opening or port b', leading into the power-cylinder of the engine. As the IOO IIO

power-piston starts to return, compressing the charge, the valve D closes, leaving the passage b2 (as the whole inlet-passage is termed) filled with a pure combustible mixture, as all the charges of the previous explosions are carried forward as the charge first begins to pass into the cylinder. Consequently the mixture that enters the thimble or tube Z is always pure and unmixed with burned gases, insuring a certainty-in ignitions of the compression-charges.

It will be observed that by connecting a pipe conveying ordinary gas or natural gas to the carburetor at the passage or aperture filled or closed by the plug f X and shutting the gasoline-supply and removing the ball-valve e3 the gas will be sucked up the passage c2 out through the orifices c4, where the mixture of the air therewith, the same as previously with the gasoline, will take place for the charges to the power-cylinder. As the raising of the carburetor stem or rod is controlled, as before stated, by the action of the governor, the power of the engine is in proper proportion to the speed; if beyond its normal speed, the governor acts and the carburetor stem or rod is not raised, and only air passes into the cylinder.

Having thus described our invention, we claiml. The gas-engine having the exhaust-chamber and its valve, the power-cylinder having an inlet port or passage, the ignition-chamber having a heated tube or thimble, a valve seated in the mouth or lower open end of said tube or thimble, and the specified means for operating said valves, the check-valve, and the vertically-movable carburetorhaving a valved lower tubular portion and orifices or apertures feeding the gas from its tubular portion out upon serially apertured or perforated plates carried by said carburetor, substantially as and for the purpose set forth.

2. In a gas-engine, the combination of the d engine, including its power-cylinder, the gearwheels, one having the cam a3, and the cams I, I3, and S, the bar or lever a4, carrying the roller, the spring a7, acting upon the bar or lever a4, the exhaust chamber and valve located over the passage or port b', the valve Z, controlling the opening to the thimble or tube Z by means of the rod Z2, and spring Z3, operated from the bar a4, substantially as specified.

3. In a gas-engine, the combination of the engine, including its power cylinder, the crank-shaft, the gear a', cam-wheel as, gear a2, for actuating the bar or lever a4, which causes the rod Z2 to open and close the mouth of the valve-seated thimble or tube Z, having a closed outer end, the exhaust-chamber and the port h', and burner N, having gasoline fed to it by means of atmospheric pressure upon its surface to give the gasoline a uniform steady iiow, substantially as set forth.

4. In a gas-engine, the combination of the engine with its cylinder, the gear a', camwheel 0,2, gear a2, for actuating the bar or lever a4, which causes the rod Z2 to open and close the mouth of the valve-seated thimble or tube Z, having a closed outer end, the exhaust-chamber and the port ZJ, burner N, and the chamber or tank L, having a lower gasoline-compartment, a diaphragm or partition having an orifice around which is secured a tube having an upper open end and surrounded by water, the freely-moving closedtop cylinder, and the tube dipping in the lower gasoline-compartment of said chamber or tank and connecting with the burner tube or pipe, substantially as and for the purpose set forth.

5. In a gas-engine, the combination of the engine, its cylinder, the gears a a2, cam-wheel having cams specified, the bar or lever a4, the valves Z and b, thimble or tube Z, the stem or rod carrying plates c5 and having the passage therein, the orifices c4, communicating with said passage, and the valve c3 in the lower part of said passage, spring c7, inlet-passage c6, cock cs, and rod cx, substantially as set forth.

6. In a gas-engine, the combinationof the engine, its cylinder, the actuating gears and cams, the bar or lever a4, the exhaust-chamber having the passages ZJ h2, the thimble Z, controlled by the valve upon the rod Z, which is actuated by rod Z2 and spring Z2, the burner N, the tank L, having an inverted or openbottomed and closed-top cylinder exerting atmospheric pressure upon the liquid or gasoline through a tube secured upon a partition or diaphragm in said tank or chamber, tube m', connecting with the burner-pipe, the cock m, the ignition chamber E, the check-valve D, and the carburetor O, having the horizontal and vertical chambers, one having a narrow downward extension and the stem or rod carrying the serially-apertured plates, and in the lower end of its passage a valve, said stem or rod also having a series p of apertures or orilices and a spring applied thereto, itself having connection with the lever or bar a4 and acted upon by the enginegovernor, said downward extension of the vertical chamber of the carburetor having connection with a gas-supply, substantially as and for the purpose set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

LEWIS C. PARKER.

- BEAUMONT PARKER.

lVitn esses G. H. SMITH, S. F. CLARK.

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