US951353A - Gas-engine. - Google Patents

Description

' WHT mozo G. W. WELLBR.

GAS ENGINE, APPLICATION yIEILED JULY 30,1906.

Patented Mar. 8,1910.

2 SHEETS-SHEET 1.

mmm.

G. W. WBVLLER.

GAS ENGINE. APP-IOATION FILED JULY 30,1996.

Patented Mar.8,191'0;.

2 SHEETS-SHEET 2.

@mi h1 uns:

GILES W. WELLER, 0F KIMBERLY, NEVADA.

ens-ENGINE.

Specication of Letters Patent.

Patented Mar. 8, 1910.

Application led July 30, 1906. Serial No. 328,386.

WELLER, a

carbureter by means of which the feeding of the hydrocarbon fluid can be regulated and its admixture with air effected by a simple and compact arrangement forming part4 of the engine-cylinder.

Other objects and advantages of the invention will hereinafter appear, and what I claim as novel in the particular construction and combination lof parts will be specifically setforth in the appended claims.

In' Vthe accompanying drawings, which form a part of this specification, Figure l a horizontal sectional View of a fourcylinder engine, showing an application of my invention.' Fig. 2 is a vertical transverse sectional view through the cylinder heads of one pair of cylinders. Fig. 3 is. an enlarged detail sectional view of the vaporizer. LikeA numerals of reference indicate like parts'in all the views of the drawings.

As illustrated in the drawings I have shown my invention applied to a four cylinder engine, iu which 'the cylinders, 1, 2, 3 and 4 are arranged in tandem pairs parallel to each other and spaced apart, said cylin? ders being-provided with water-jackets 5 which are extended to connect the companion cylinders and form an intermediate casing. Each cylinder is provided with the usual reciprocating type of piston 6. The pistons of each pair of cylinders are directly connected together by a piston-rod 7, and said rods are-connected together"` at an intermediate point by means of a cross-head 8,

lwhich pass through openings therefor in the aforesaid casing. On the cross-headvis swiv-I eledV a coupling 9, forming the attachment for the rods 10 10 that connect with the crank-shaft'll and travel or reciprocate between the pairs of cylinders. The connec-v proportions before entering the means of a coupling 12, similar to the coupling 9 on the cross-head, andthe crank- I shaft is' journaled in 'any approved type pf bearings, as 13. In this manner the plstons are all connected together so that they will move in unison, and the pistons of the two pairs of cylinders are correspondingly arranged while the valve mechanisms and sparkingI devices are so timed relatively that the several pistons will successively receive an explosive impulse.

Inasmuch as the valve mechanism and va orizer device are the same on every'cylin er a description of those on one will answer for all;

14 designates the cylinder-head, which is provided with the valve-chamber 15, the gas-inlet 16 and the exhaust 17, the inlet chamber being extendedvto one side, as at 18,

" to provide a mixing chamber for the hydro- -carbon fluid and air.

and the exhaust-valve 20 are provided with The inlet-valve 19 i the usual stems vwhich pass downwardso through suitable bosses on the cylinderhead so that their lower ends will be in the path of the tappets 21 and 22, which latter 'are operated by suitable cams 23 and 24 on the usualvalve-operating shaft 25, the said 4valves being seated by the springs 2G, as

is usual.

Extending through the top of the cylinder-'head into the mixing chamber 18 is a feed-valve for the gasolene or other hydrocarbon fluid, said valve comprising the valve-easing 30, having the inlet 31, and the outlet 32, land provided with a valve-plug adapted to open and close the inlet and outlet openings alternately p to discharge only gasolene into the mixing a certain amount of chamber at each operation of the plug. The plug'consists of two for opening and closing the inlet' and the lower part 34 for opemngiandA closing the outlet, the said last mentioned part beingcut away circumferentially at its lower end toy provide in conjunction with a recess 1n the casinof a liquid chamber 35. Said part- 34 is a so provided with channels 36 at its sides,

which closes theA inlet, has a channel 37, opposite the inlet so as to permit of a flow of gasolene around the same when the plug is below the inlet, in which latter position the outlet valve is closed, said channel 37 parts, the upper partv which permit a flow of the liquid to the chamber 35, andthe-upper part 33,

being closed, when the plug israised, by means of the rib 33a. The part 33 is connected to the part 34 by means of a screw 3'8, which is threaded in an opening in the upper end of the part 34 and therefore ad-A be operatedv by the tappet 21 which operates the gas-inlet valve, and so that both of them will be operated simultaneously. ,The gaso- ,rlene feed-valve is seated by means of ka of said stem, similar to the other valves,I

spring 42 interposed between the cylinderL head and a foot-piece 43 on the lower end and said foot-piece is provided with a fiuger or projection 44 which overlaps a foot- '.pieee on the stem of the gas-inlet valve 1G,

to insure a simultaneous movement of these valves. In conjunction with this gasolene feed-valve there is the usual spring-actuated air Iinlet valve 45, which is opened automatically by the suction created by the backward movement of the piston, said air inlet valve being located beyond the feed-valve Yso that theA gasolene will mix with the air on its way tothe engine cylinder.

Any approved form of sparking device may be used in connection with the engine' and suitably 'located to ignite the gases after compression -in the engine-cyhuders- The' operation 4of the -woi'l 1ng parts of yeach .cylinder will be readily understood from'theforegoingdescription in connection with the accompanying drawings, for upon the rearward movement of the piston the inlet valve 19 and gasolene feed-valve 3() will be opened through the intervention of the tappet 21and cam 23,.. and'as the air is drawn through the mixing chamber 18 frein the air-inlet valve 45 it will be charged with 'a proper amount oitl gasolene generating a gas that is drawn into the engine-cylinder by the suction created by the movement of the piston iilling the cylinder and valve-4 chamber, and at the end of the outward movement of the' piston the valves 45, 30 and 19 will all close automatically. Upon thel return stroke of the pistn the gas is compressed and at the proper time a sparkring device (not shown) is operated, causing aspark which ignites the gasand gives an explosive impulse to the piston driving it rearward, and upon the return of the piston the outlet or exhaust valve 20 is -opened by the cam 24 permitting the exploded gases to escapegeafter which the piston again moves rearwardtaking in another supply of gas, and so on. This operation is reexhausting.

p'eated in the' other cylinders and so that the several pistons will receive an explosive ini pulse in succession that is to say, when the cylinder 1 is taking in a supply of gas cyiin# der 2 is compressing its supply otgas pre- 7oviou'sly taken in, while cylinder 3 is-receiving an explosive impulse and cylinder 4 is Thustlie successive explosive impulses are transmitted to the crankshaft successively and upon eachhalf rotation of said shaft. l

.Having thus described my invention, -I

claim .1. In a' gas engine of the character describe-d, the combination witlrthe cylinder headv having the usual gas inlet and exhaust valves and a` mixing vchamber beyond the gas inletvalve, of a gasoleneJfeedwalve depending into the mixing chamber and having an inlet opening at its upper end and an o`utlet opening at its lower end and a plug adapted to alternately close the inlet and outlet opeir ings; together with means ior operating the plug simultaneouslywith the operation et the gas inlet-valve. v' Y 2. In a gas engine, .the combination with the cylinder head having the usual gas inlet and lexhaust valves and a mixing' chamber belowthe gas inlet valve, of agasolene feed L valve dependinginto lthe mixing chambeig5 and comprising a casing or tube with an nlet'openingat itsupper end and an outlet opening at its lower end, a plug located in the casing having a cavity at-its lower end iormin r a li uid chamber and a cavit` near e ioo its u-pper end form-ing an auxiliary liquid chamber, and means for increasing. and decreasing the size o1 said latter cavity.

3. In a gas engine, the combination with the cylinder head having the usual gas inlet` lo and exhaust valves, a'niixing chamber below the inlet valve and a spring actuated air inlet valve at 'the outer end of said chain-- ber, of a gasolene feed valve depending into the mixing clia'mberand comprising a casing n@ or. lube having inlet. and outlet openin 's at i its upper and .lower ends, respective? a plug'located in the tube and having a cavity at'its lower end forming a liquid chamberand`a cavity near its upper end forming an v auxiliary liquid chamber, and means for iiicreasing and decreasing the size of said latter cavity, said plug being so arranged as to close the feed'opening when raised to open the outlet, and means for operating said valve simultaneously with the operation of the gas inlet valve'.

4. In a gas engine, the combination with the cylinder head having thevusual gas inlet and exhaust v'alves, a mixing chamber below 125 the gasiinlet valve anda spring-actuated air inlet valve -at. the outerv end of the mixing chamber, of aA ga solene. feed valve .depending -intothe mixing chamberand comprising a tubewith inlet'and outlet openings at the 130 upper and lower ends respectively, a. twopart plug adapted to open and close said lopenings alternately and provide aliquid space between them, and 'a screw connecting the parts of the plug to adjust one with re-y spect to the other so as to increase or decrease the liquid space; together with means for operating the valve simultaneously-with the operation of the gas inlet valve.

- 5. AIn a'gas engine,`the combination with the cylinder head having the usual gas inlet and exhaust valves, of a mixing chamber belowl said inlet valve, a spring-actuatedair' crease `the liquid space between them, saidA screw projecting up through vthe casing of' the valve; together with means for operating the valve simultaneously with the operation of the gas inlet valve.

6. In a gas en ine, the combination with the cylinder-hea having a gas inlet valve, a mixing chamber below said inlet valve and a springactuated air inlet valve at the outer end of said mixing chamber, of agasolene feed-valvedepending into the mixing chamber through .the top of the cylinder-head comprising a casing or tube having inlet and outer openings at the upper and lower ends respectively, avertically movable plug adapted to close said openings alternately and provided with a liquid Space at its lower end, and a stem depending from the plug through the bottom of the c" linder-head; to-

gether with a tappet exten ing beneath the stems of the aforesaid inlet and feed valves,

and a cam for. operati-ng said tappet.

7. In 'a gas engine, the combination with the cylinder-head having a gas inlet valve, a mixing chamber below said inlet valve and a spring-actuated air inlet valve at 'the outer end of said mixing chamber, of la gasolene feed-valve depending int-o themixing chamber through the top of, the cylinder head comprising a casing or tube having inlet and outlet openings at its upper and lower ends respectively, a two-part vertically movable plug ada ted to open and close said openings "alternate y, a screw connecting said parts of' the plug to provide a variable liquid space betweeirthem, a stem depending from the plug through the bottom of thecylinderhead, and a foot-piece on the lower end of the stem having a projection which overlaps a shoulder on the lower end of the stem -of the gas inlet valve; together with a tappet passing under the stems of the gas-inlet and the gasolene feed valves, 'and a cam operating said tappet, substantially as shown and for the purpose set forth.

In testimony whereof I have signed my name 'to this speciication in the" presence of two subscribing witnesses.

GILES Witnesses:

G. F. BOREMAN,

JOHN M. Hown.

w. WELLER

Images