US1046863A - Internal-combustion engine. - Google Patents

Description

C. SAIINDERS,y A. A. RUPPRBCHT & E. L. GRANT.'

INTERNAL GOMBUSTION ENGINE.

APPLICATION FILED JUlEv, 1911.

. immunizedl Dec. 1o, 1912.

nn'irnn scrazrns iearnnii ernten CHARLES s enivnnns, ALWIneLBEnT nnrrnnonr, Ann nDo-Annionsfrnn GRANT, or

. I Lennon, ENGLAND.

rntrnRnaLcoi/rnnsrrion ENGINE.

Specification o Letters Patent.

heisses.,

Application ledlfune 5, 1911. elial No. 631,415.

To all who i imag conce/rn: y

Be it known that we, CHARLES SAUNnnns, ALwiN Ammin' Rorrnncn'r, and Encan Lincns'rnn GRANT, subjects ot the King of the aforesaid central partition, forms two combustion chambers, and it is provided near cach end with exhaust ports adapted to be uncovered and covered during the recip` Patented Dec. it), gt.'

England, residing at London, England, l'ocatory vmm'enients ot the sleeve, and in 60 have invented` certain new and useful lmsuch sequence, that the inlet of compressed provements in Internallombustion En-y charge to each combustion chamber begins gines; and we do hereby declare the tollowwhile the corresponding exhaust ports are ing to-be a full, clear, and exactdescription openl whereby thorough scavenging isasof the invention, such as will enable others sured. 65 skilled in the art to which it appertains to Ignition of the charge compressed in each make and use the same, reference being had combustion chamber is effected at the corto the accompanying drawings, and to le'trect time by suitable means, but in the preters or figures of reference marked thereon, feired form of the invention sparking plugs l5 which form a part of this specification. are arranged in suitable positions and are 70 rllhis invention relates to improvements in adapted to be placed alternately 'in firing two-stroke cycle internal combustion onconnection with the respctaive combustion gines and more especially to double acting chambers by means of ports in .the aforesaid 'internal combustion engines of the typ@ in partition as the sleeve approaches the end which a sleeve having a central partition is Oi euch Stlolc- 75 adapted to reciprocate over two stationary 'lhe lzmzompallying.drawings.illustrate by pistons arranged one each end. ot a sta- .way ot example one :torni oi eugineacco-rdtionary cylinder' and in spaced relation ingle the invention, Figures l, and 2, being thereto so as to leave annular spaces to similar trout sectional elevations illustratreceive the endg `0f the Sain Sleeve, ing the sleeve at dili'erent positions of the 80 @ne object of the present invention to crank. Fig. 3, a side elevation halt -in devise an engine of the above type capable Scctlon. A l

of transmitting an impulse every stroke, ln the forinoi the invention illustrated .a and having means whereby the combustible Sleeve a, Cllvuledbyn` central partition, l),

charge can be subjected to a preliminary icclprocates within a stationary cylinder' c, 85 con'ipression before entering and being subhaving a stationary pistoird, arranged lat ject-,ed to a Secondary Comlircssion in each cach end and in spaced relation thereto so as Colnbugtion" Chai/Ubel", (and 51,150 whereby the t() lQZl'VG lllnlllli SplQCS tt) l'QCClVG ill@ tl'lfl u entry of the charge to each ol said chambers llOItOl'lS Oi" thtv sleeve a. Two combustion is @1l-gend at @ngen-d lng-@03%, while in@ 0X. chambers c, are thereby loru'ied within the 90 haust gases are escaping at the opposite end, to insure thorough scavenging, said coin trolling means being ot such torni as to (lispense ith the necessity for puppet and like valves.

[recording to the present invention the central portion oli the engine cylinder enlarged so to form in conjunction with 'the sleeve an annular chamber which 4is utilized sleeve and between the stationary pistons c7., and the partition t y The central portion ot the engine cylinder c, is enlarged so as to torni in conjunction with the sleeve a, an annular conign'essor 9 chamber g, the partition o, being enlarged to torni a compressor piston y11., to work in said chamber gf, and i'o an tlieiewi-lh a double acting compre lor. The sleeve e, connectl 3S L @Glnprngsor chamber, the partition ot' ed to any suitable mechanism for transinit- 100 the sleeve being enlarged to it'ori a piston ting its motiont'or instance it is connected for lworking therein, so that a double acting to a crank i, by means of a coi'ineeting rod f, compressor is thereby inovided, the suction having the usual forni ot' gudgeon pin Z, the and delivery ports of which are adapted to li'ivfer stationary piston c?, having slots m, to

5@ ie controlled by the compressor piston, so permit of the tree rcciprocation olI the pin Z. 105

that the combustion chambers before each Carburetetl air or other suitable comceinpression stroke are alternately supplied bustible iiuid is drawn into the compressor by the compressor with coi'npressed charge. chamber t, through section ports n, snrihe; aforesaid reciprocatory sleeve, in rounded by an annular inlet chamber u, and

conjunction wh the stationary pistons and after being subjected to a prelin'iinary 'com- 110 pression in the per exhaust ports 1".

chamber g, by the piston h, is allowed to enter the combustion chambers e,l o way of ports-gain the partition b, when 4 sai ports are brought into register with p'orts g. The sleeve a, is provided with a set of exhaust ports a", near each end, adapted to be brought periodically into register with annular exhaust passages s, leading to'the.

atmosphere by ports t.

Ignition of the charges compressed inthe combustion chambers is effected by sparking plugs l,adapted to be alternately brought into 4sparking connection with .their respecr tive chambers by the ports p, in thepartition b, when the latter approaches vthe end of each ',stroke. f y i The cycle of operations is as follows to be in the position indicated in 1, a compressed charge in the lower combustionchamber e, 'is .just ,about to be ignited by the respective sparking plug fu, the corresponding ort p, placing it 1n connection with saidA com ustion chambei'. In the meantime the compressor piston h, will have created a partial vacuum in the upper part of the compressor chamber g, and also uncovered the inlet ports n', so that a fresh supply of carbureted air will enter the said upper Apartei the chambeing. Simultaneously` with this action the charge previously piston h, in the lower part of the compressor chamber g, will pass through the respective ports vgl, and p, into the upper combustion chamber c, and the previously exploded charge therein will exhaust'through the up- Upon combustion occurring in the lower chamber e, the sleeve a, vwill move upwardly, the various ports p, n, and 1', being closed as indicated in Fig. 2, so-

that 4the charges in the upper part of the chamber g, and upper chamber e are subjected toa preliminary and secondary comas'described abovewith reference-to Fig. 1,`

pression respectively. When the sleeve a, approaches the cndof-its upward Vstroke the same conditions obtain at the upper end in respect -of'the lower endof the stroke,

that-is to say the charge compressed in the ,upper combustion chamber e, will be ignited by the upper sparking plug fu, which will be placed in connection with the said chamber enter by the respective port while the burnt gases in the lower cham er e,':will begin to escape through the lower. exhaust ports r',

andv the fresh charge compressed in the up-v per partof the compressorchamber g, will x the lower combustionA chamber e, throughI the upper Iport g, and' respective port p. At the same timeja fresh supply of combustible fluid will enter the lower part Vofthe compressor chamber g, through-.the

ports n., The sleevevwill then move downwardly, the various ports a, p, and r, being then closed, as will beunderstood on refercompressed by the compressor compressor that an impulse is obtained for every stroke of the sleeve a, or two impulses for every revolution of the crank. Efficient scavenging'of the combustion chambers ,is insured, as the preliminary compressed charge enters each; chamber at the end remote `from the exhaust ports. As the compressor is doubleacting an adequate induction and compression of fresh combustible fluid are effectedJ and an adequatelsupply of compressed fluid isfprovided for each combustion chamber.

These radvantages are obtained by the use, 'within theengine proper of only one mov` ing'part, lnamely the sleeve a, irrespective lence toFig. 2. y It will thus be understood of the' connecting`- rod and like parts for4 itransmitting the motion of the sleeve, no

puppet valves orthe like moving parts'beingv i necessary. .f

- Weclaimz-v 1.' lIn a combustion engine'ofthe'character described, the combination of a cylinder -providedwith an enlarged portion to form a" -compression .chamber and a .gasreceiving chamber, the latter having openings which .communicate with the compression chamber,

said-cylinder having an exhaust port, a pis? ton .supported in the en-d ofthecylinder and spaced from the 'walls thereof, a sleeve having a partition and a iange, .tle latter" operating in 'the compressionl chamber,v sleeve operating in the cylinder-.and vover the 'piston' and forming with the 4latter a combustion chamber, said sleeve having an exhaust port near its open end, the partition having-a port located to admita charge to the combustion chamber from 4the compres-l sion chamber after the flange has compressed said-charge in' said compression chamber and when'the exhaust port in the sleeve communicates with the exhaust portin the cylinder, andmeans for ignitingthe charge in the combustion chamber through the port inthe partition.'

2. In a double-acting internal combustion i'iol engine, a cylinder having astationary .piston at eachA end in spaced'relation tothecylindrical surface thereof,a reciprocatory sleeve 4 having a'centia-l partition,` said, sleeve being disposed on-'said pistons so 'as to forni therewith two combustion chambers, an annular double lacting Vcompressor chamber sur-- roundiiigsaid sleeve andl havinga com- .presser piston which is carried by said leeve, andmeans for alternately connecting the compressor substantially as and for the purpose here- 'inbeforeset-forth '3. Ina doubleacting iiiternalcombiistion engine, a cylinder having a stationary pisto`n at each en-d in spaced relation to the sleeve having 'ay f central K partition, sai

'12o 'chamber on each side 'of the 4 .piston with`- the combustion j chamber which is -re'mote fromsaid side,.

Steeve being disposed on said pistons so as to form therew'th two combustion chambers, an annular double acting; compressor chainber surrounding said sleeve and having a compressor piston which is carried by said sleeve, means for alternately connecting the compressor chamber on each side of the compressor piston vwith the coml'iustion chamber which is remote from said side said connection being effected at one end of said combustion chamber, and means for conductingl away the burnt. opposite end of said chamber simultaneously with said connection being;r etlccted, substati- .15 tially as and for the purpose hereinbefore setl` forth.

4. In a double acting internal coi'nbustiou engine comprising a cylinder having a stationary piston at each end in spaced relation to the cylindrical surface of said cylinder, and a sleeve adapted to reciprocate on said pistons, said sleeve having; a central partition, the combination of a central double actingcompressor sleeve and a compressor piston therefor on said sleeve., the emnprcssor chamber having suction and two delivery ports,controlled by the compressor piston, and the sleeve having` inlet ports ou opposite, sides of the partition adapted to register alternately with the de-- livery ports of the compressorchaml'ieig the sleeve. also having exhaust ports near its ends, adapted to be uncovered by the reciprocation of the sleeve simultaneously with the registration of the aforesaid ports, substantially as and .for the purpose hereinbcfore set forth.

5. A double acting' tivo stroke cycle internal combustion engine con'iprising in com- 40 bination, a cylinder having a statiomiry piston at each end in spaced relation to the cylindrical surface thereof, a reeiproeatory sleeve disposed on said pistons and having a central. partition dividing: it into two combastion chambers, a double act-ingi compres- `sor surrounding said sleeve and provided with delivery ports and having a compressor piston on the sleeve, and two sparking plugs on the walls of the compressor the partition of the sleeve having two ports conununieating with the aforesaid combustion chambers, and adapted on reciprocation of the sleeve to be brought alternately into register with the respective delivery ports of the etnupressor and with the aforesaid sparking plugs,

substantially as and for the purpose hereinbefore set forth.

G. In a double acting internal combustion engine, a cylinder having a stationary piston at each end in spaced relation to the gases from the ehan'iher surrounding said' l ,I l

l l l i l t l l l i cylindrical surface thereof, a sleeve adapted to reciprocate on said pistons and havingr a central partition, an annular doable acting compressor chamber surrounding` the central part of said sleeve, a compressor piston on the sleeve adapted to reciprocate in said chamber, a gudgeon pin in the lower end of said sleeve, a crank shaft, and a rod connecting said gudgeon pin and the era-nk of said shaft, the stationary piston at the adjacent end of the cylinder being,- slotted to permit of the reeiprocation of the gudgeon pin, substantially as and for the purpose hereinbefore set forth.

7. ln combination with 'the cylinder of an internal combustion engine, a stationary piston at each end of said cylinder and in spaced relation to the cylindrical surface thereof, a sleeve slidable on said stationary pistons, a eonipressoi.' chamber having delivery ports at the ends thereof, a ported division wall in said sleeve and forming` separate comliiustion chai'nbers on each side thereof, said ports leadinoj vfrom opposite sides of said division wall to communicate only at and near the end of each Worl'iing stroke with (ine of the delivery ports from said compressor chamber. said cylinder having eX- haust; passages which are uncovered by the sleeve at the time the ports in the division wall eonnnunieate with the delivery ports l from the compressor.

8. in a two stroke cycle internal coml'uis- `tion engine, the combination of a working cylinder ha ving a compression chamber 'formed with inlet ports, stationary pistons fixed on the ends thereof .in spaced relation to the cylinder, the worltiufrA cylinder having: exhaust. passages, a sleeve having a partition said sleeve operating over the pistons and adapted at. the outer end' of each stroke to Vuncover oney of the exhaust passages, a compressor onthe sleeve, said con'ipressor operating in the uncovering the ports therein when one of the exhaust ports unfaivered, the partition havingr inlet passages for admitting` a coinpressed charge upon each complete reciproeation of the sleeve and at a time. when the inlet ports are uncovered.

In testimony whereof we have signed our naines to thisI specitiration in the presence of two subsmibing,r witnesses.

Il. I?. Jamison.

cou'lpression chamber and

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