US931531A - Gas-engine. - Google Patents

Description

C. T. WADE.

GAS ENGINE. APPLICATION FILED 001223, 190e.

93 1 ,53 1 Patented Aug. 17,l 1909.

with, and in -which a CHARLES T. WADE, OF THE UNITED STATES NAVY.

Gas-ENGINE.

isp. 931,531. l

, -Specicaton of Letters Patent. I

Patented Aug. 17, 1909.

A ppueaaon med october 23, 190e. senin N6. 345,207.

110191Z whom 'it may. concern: it known that I, CHARLES'T. WADE, `a citizen ofthe United States, and a lieuten- 'antg inthe United States Navy, have in :vented new and useful Improvements. in 'I-GasfEngmes, of wlnch the following is aA speciication;

invention relates tov-improvements j gas engines and the obiect of my invention 130 is to provide a simple device'oifl this type iin 'which the explosion cylinder and a-larger.

,compression cylinder are Yplaced end to end,

acommon piston rod connects the two pis' n =ton's,"a second piston rod or the first prolonged connects thepiston in the explosion cylinder with a crosshead,.the use 'of all valves between the tiylin'ders is dispensed theburned gases in the ,explosion'chamber are driven out and `replaced with fresh carbureted air at theend of'lthe stroke.

.With this object in of parts as hereinafter. described and afimed.'

fa verticalseetion of my improved gas engine... Fig. 2 is a vertical section o a cylinder intothefexplosion cylinder.

a; i jep;1.eSenta compression cylinder, lar erttlian", and pla'ced orf vthe end of, the cxp os.on*'cylinder B '11; Va `common 1 t on rodQ-E-fconnects the two pistons() and and a.4 second piston rod eiconnects thepiston C with the crojsshead K, working on the crosshead guide H, the crosshead being connected 'to the crank-pin S of the crank-shaft 0,1 byv vmeans of the connectin rod P.

The explosion cyliner is' provided-,with exhaust ports T extending at interyals all 'the way .around 'the cylinder, these ports leading to the openair or to a muier of shine-suitable design. v

The inlet to the compression cylinder is .throu h a carbureter-at R of some ap- `prove design, then throughpipes andnonlreturn valves at M and m to the two ends of the com ression cylinder.

Cylin er and piston rod bearing surfaces are kept tight by means of piston rings Z and z, and by packing rings. Y and y andIy, made of any suitable material; and rubbm surfaces, of the ci-osshead, connecting ro viewfmy invention- :1n the @instruction and'c'ombmanthe accompanying drawings, Figure 1 and crank shaft are made of white metal, or

other suitable material l 'Connection 1s lmade from the upper end of the compression cylinder a to a chamber n between the packing rings y and y', by means of a pipe l l.

A number of' slots Xand are cut in the -ci'cumferences ofthe pistn rods E and o in such a place that, near the end of the\` .stroke, after exhaust has taken place, the

slots Xl-will extend in both the chamberssA\\ `anl.Bz oonnectinv them; and near`the .end

-guecting b and a. (through- Z and Thus he use of valves between the 'compression -and the explosion cylinder, is entirely.

obviated. A A The packing rings y are laced apart so that the carburete gas under compression may! not escape to the open air when the slots are part way` through this bearing.

The ignition is by any suitable means,-

that shown in the drawing being by electric spark plu The cyllnders may be air or .water cooled, may be anysize or shape,- and the lubrication '-may be by any suitable method. modied.. means ,for delivering the compressedfcarbureted air from the compression i The explosive mixture of gas which has so far4 been called carbureted air, may be produced'by drawing gasolene, oil or' alcohol vapor, in'combination with air, from a car- Abureter of some approved design; or may be reduced by admitting a quantity of gasoene, oil or alcohol in aliquid state, into the cylinder filled withair.

Fin 2 shows'a modified form to replace thes otsin the piston rods. The piston rod is here shown hollow, and at the places corres' ending to the two ends of the slots, are sun holes tothe inside of the rod. At the end of the stroke, the course of. the carbureted air would be from the compression cylinder A, through the upper holes\to the inside ofthe rod', which is tight at both ends,

of the returnstrie, the slots will extend 1n both the chambers b and n, thus contlien, through the lower holes into the explo- -sioncylinder B.

lightlv compressing fresh carbureted air in ,ilo

Athe partition between the chambers A and chamber A until the slot-SIX extend through B, and. thus open A to B.; this occurring just after the exhaust ports T have been uncovered. Thecompressed charge in chamber. A then drives out all the remaining burned charge in chamber B, and completely fills B with fresh carbureted air. Then on thereturn stroke, a partial yacunm is produced' in to fill which fresh carbureted air rushes in through the carbureter at R, thel pipe and non-return valve at M; the charge in l5 is compressed, the spark is a plied at V and the operationcontlnued, in efinitely. bilnilai-ly, in the Iposition shown in the drawing, the exhaust has taken place in the explosion cylinder b, the slots w in the vpiston rod -e have admitted fresh --carbureted air under pressure, from compression cylinder a pipe l and chamber n to the explosion cylinder b, thus filling Z1 with fresh carbureted air.' 0n the return stroke a partial vacuum is created in compression cylinder a, causing fresh carbureted air to rush in through carbureter at It, pipe Aand non-return valve at m; the charge'of fresh carburetcd air in the explosion cylinder b being placed under compression. Whenthe spark is applied at 2; the up stroke is again produced, compressing the charge in the compression cylinder a, until exhaust and the opening-of the compression cylinder a to the explosion cylinder 'b again takes place, vthe operation then being continued, indefinitely.

I claim- 1. In a gas engine, the combination of a compression cylinder and an explosion cylinder arranged in line with each other, the head of one of said cylinders forming a partition between them, a cross head, a' piston in each of said cylinders, slot-ted4 piston rods connecting said pistons together and connecting one of -said pistons to said cross' head, a crank shaft connected to said cross head .and means, including said. slotted pisdescribe ,-plosion cylinder, a piston in eaTliT-.of

ton rods, whereby the compressed charges of carbureted air maybe 'delivered from 'the compression cylinder into each end of the explosion cylinder alternately, substantially i 2. In a gas engine the combination of an 4explosion cylinder and a compression cylinder arranged Vin lincwith each other, the head of one of' said cylindersforming a partition between them, said compression cylinder being of greater diameter 'than said 'explosion'cylinder, a piston'in'each of said cylinders, a slotted'piston :'rod connect-ing said pistons, a cross head'. a slotted pist-on rod connecting said cross head with one of said pistons, a connecting'rodfaicrankshaft connected thereto, and means.i-ncludingsaid" slotted piston rods, whereby fth'eichargeof' carbureted air may bclfd'eflih'e'redfi-m'fthecompression cylinder i1i`tt1Iat-zh-v endP-ofatfhefe explosion cylinder alternately substantial-Ly.

3. In a gas engine, thefe n'rbinati'on bfjan explosionv cylinder and A*fi-"lontlpr'es'sion"icylihss der arranged in line '\\'i'tlieacl1"ther, 'thex head of one of said cylinders forming a partit-ion between them, said com are sion.cyltin,

der being of greater diinlieti -thnn there,

I aiid. cylinders, a peripherallyf's rrftedfipistald v5 connecting said pist ons', iilfcrssj hea d, ai ri' herally slotted pistoni'rod*connecting?onef o said pistons with said cross head, af'fcrank'- s said crank shaft, and a conliitinttitibe' lead ing from 011e end of sai'd'oripr sion cylin'-` der to one end of said explosion cylinder, whereby `conlljiressed char es maybe. ,deliveredto the opposite end df tlieeitplositrcylinder alternately, las -f' scribed.

lVitnesses F. H. LEMLr,l 1, 1

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