US1779835A - Sleeve-valve engine - Google Patents

Description

Oct. 28, 41930.

B. DE K. VAN DORSSEN El' AL SLEEVE VALVE `ENGINE Filer; Aug. 12., 192e s sneetssheet 1 INVENTORS Oef. 28, 1930. B. DE K. VAN DoRssEN Er AL 1,779,835

SLEEVE VALVE ENGINE Filed Aug. 12, 1926 25 Sheets-Sheet 2 Oct. 28, 1930. s. DE K. VAN DoRssEN Ef AL 1,779,835

SLEEVE VALVE ENGINE Filed Aug. 1,2l 1925 3 Sheets-Sheet 5 INVENTOR De Kew/FF VIN Daexf/v.

Patented Oct. .28,

[.JfUNITED-STATES BRIAN DE xmIYFF vAN DonssEN, or RENKUM, NETHERLANDS, Y oF RAN'roUL, ILLINOIS `MTElvlfffojlfrmi;

'sLEEvn-VALVE `ENGINE i 'Application filed Augstriia'iezs. vkSerial No.12s,7fs4.

' n This invention relates to internal combus-.

Y tion engines of the sleeve valve typeand the primary object-is the provision of an engine of provisionpof valve ports, oneon' each side of.`

K the top of the cylinder, each of--which communicate with a valve opening in a main stationary chamber or sleeve support above the cylinder. f f v f of cams which Vmay positively operate the two valve sleeves back and` forth in both Vdirections. These cams are so designed'that the 2Osleeves are both stationary duringfthe pressure periods of the engine, that is, during the compression and during the eXplosion periods.'

Y A further obj ectis the provision of a spark plug in each ofthe ports which are provided between the top of the' cylinder and the valves. Thel dual ignition provided `by these two sparkv plugsV causes: :an eiiicient combustion since both spark plugs are in a comparatively small' chamber communicating with' the pis'- 'ton chamber,jeach of these chambers or ports in which ythe plugs are locatedbeing full of fresh fuel at the time the explosion occurs. n

The two sleeves ofthe valve are each pro- I '35 videdpwith openingswhich are ladapted tobe moved rinto registration at the proper'period, landgonelof the/ sleeves isopen to receivey the othersleeve n' within thegf'same. i.' vThe inner sleeve is provided with ajpair of openings on 40 each side of the plane of symmetry ofthe cylinder Vandthe inner sleeve between these two openings is partitioned` or closed by al centralA drum having flaring guide surfaces whichV direct the fuel and burnt gases forward` 5 and away from `the openings .inthesleeve The'incoming fuel is supplied thru one'end of these two valve sleeves t-o the cylinder when the one openingin'the inner sleeve is properly positioned Aadjacent Yto the opening 5 in the housing chamber and after; the'inner sleeve has beenV moved, the second opening is AND IVAN 'LL rnocmon,

moved into registration with the chamber opening `to permit the eXliaustof the'burnt gases thru the other 'end ofthe ftwo sleeves. The sleeves will therefore be cooled bythe incoming fuel so as to prevent the excess teinperatures which might otherwise result from the hot burnt gases. `The sleeves lare'heated and cooledv in such rapid succession that they assumefa practically permanent size, and un? due eXp'ansionis therefore eliminated'. AV further object of the invention is the motion and so that vthey remain Vstationary for va comparatively long time during 'the pressure periods of the engine. A pair of cams 1s providedffor the operation lof a reyprovisionof cams which operatethe valve i sleeves, these cams being designed lso that the Y A sleeves kare-'rapidly moved whenthey arein A further object is the provision vof a set i the operation ofthe inner sleeve. Eachj of the sleeves hasan up'wardlyprojecting lug bywhich lthey are operating from the cam operating slide. Thecams are contained in acliamber or housing so that the proper oil'- ing of the cams and sleeves may be provided for. Thev lubrication is preferably of the forced or positive nature'fand' the oil isdirected thru-thehollowcam shafts and oils the cam shaft bearings, the-cam surfaces and the cam striking blocks provided I in the Icam slides; A constant levelof the oil is vmain'- tained in the reservoir vor housing,the excess being carried away vto'a sumpb'y'means of return pipes. The valve sleeves themselves are lubricated from the reservoir by meansof oil which vpasses thru holes in the outer sleeve so that it mayv find its way between the two sleeves.

A Further objects and advantages of thein-Y vention will be more rfully set "forth vin the n following description, in the accompanying claims, andin the drawings l,wherein one em-` bodiment of the invention is set forth for purposes of illustration. Referring more particularly to theV drawings: 1

Fig. 1 is a vertical section taken thruthe plane of symmetryof the valve or cylinder 10oA t showing the dividing Wall of the inner' sleeve in full lines.

Fig. 2 is a transverse vertical section on the line 2-2 of Fig. 3.

Fig. 3 is a plan View showing the top of the oil housing in, section. A,

Fig. 4 is'r4 a detail? .view of the outer sleeve.

Fig. 5 is a detail view of the inner sleeve.

Fig. 6 is a horizontal section talzen thru Figs. 7, 8, 9 and 10 are diagrainniatieiiepresentations showing the various stages of the operation of the engine5 Figi-f2" 'showing customary piston connected in a eiistornaryY crankshaft, not' shown, isi-llustrated. Gbviously they invention is intended to be used Withniultiple cylinder' engines.. The piston l' is shown` asioperating in la cylinder 2, above which is the; station-ary sleevey contain-ing chamber designated gener;-

`ally-4. In the ease indieatedltheengine. is

shown as adapted to be'eooled by .a Water eirculating.v medium Iand. ,tor this purpose av Water jacket 3V is provided around thesyl-inder and' around the combined intakeand eztliaustports 5. s:

lvtou-uted` Within the sleevenh'aniber 4 are two sleeves,.an outer sleeve 6andari-.inner-V sleeve 7 ;v the inner sleeve `being sl-idably mounted. Withintlie outer sleeve. The outer sleeve` isV unobstructed thruout its length` and is provided with an opening 8f on each side of thejsleeve. The-` inner sleeve is provided Wit-hr a pafir .ot openings' 9 one onf each side of' the sleeve yand a.. pairof openings ILO-also located. one on each .sideof` the sleeve. The . openings 9 and 10. are adaptedl to .be moved. in registration; alternately With. aport aperture .11.1.providedjinV ther outer sleeve chamber, and when the open.- ilngs 8in. the outer i sleeve (i, arein. registration 1With. the opening lland a lso 9 or .10. the fuel or theburnt gases; .travet into or out ofl the cylinder. The inner sleeve-Tris divided centrally by "apartition druinijl,

which. isV rigidly eonneeted. tothe! cylindrical sleeve-Walland which is provided with. a-iar-V ing deiieetor tte. deflect the .inwardly Home ing fuel into. the openings 107,. sisimilar?de#V i'leetor .14 beingfprovided on the opposite side of the partition- Waillr .12`tof-detleet' the: burnt gases-asl they tra-vel into tlieinner sleeve and straighten. these gases out and. direct thenrh toward the lett-end of the sleeve Where they may be exhausted into a muffler or into the atmosphere in the Vcustomary manner. The attaching nut serves to mount the curved defieetor in place `and attaches the deiiector v13 andthe deiieetor. 14 to the partition Wall'12(- Each of the sleeves and 'Thas an upwardly extending lug designated 16 and 17 -thrua: slot 18 provided at the right end of theouter sleeve 6V so that it may be moved along andi guided by the slot 18. These two lugs are operated by two Cain slides and for this" purpose each lug lis provided With a pin or'js'tud 19 and 20, upper fittings of Whichare mounted in the eain slides.. The stud 1 '9 on the outer sleeve is niountedin a hole.Y at the lett end of theeain slidel, andthe stu'd 20 on the inner sleeve is mounted atl -the rightside oi'. the cani slide 22; The twoy Cain sleeves 21 and 22 have inwardly projeeting portions 23 and 2li respectivelyin. which the studs 19 and 20 are fitted with, a elearanceiit so -thatthe Cain: slides may be moved' vertically When disassenibling and thu-s beireed from engagement With. pins 19.- and 20.,

The cani slide21 forthe/outer sleeve has an. upwardly extending, projection. .25l which rigidly supports a Cain striker block 26. A

bolt 2*? serves to connect theabloelrv. to the i support 25.1. The Vcani slide-22 which. operates the inner sleevef'is. liliewiseprovidedrwith. a

Cain strikerbloolrlQS. The tvvo bloeit-s 26. and 28 are.v oppositely Ireciprocating back., `and forth. by. meansl 'of cams mounted upon.. tlie tvvo eainshafts 29. and; 30j. g'liiese eanishafts support the outer slide cams 31 and SQ'and support the. two. eains and afwhioli. operate the lc-:ain striker block.. 28 .tor' the..,operatilon ofthe inner sleeve..g.'llhe..eaim striker blockl is shown as liarvingpa substantial; triangular shape j the .earns are so designed that .enf gagementisrnaintained with both. ot the earns of the striker hlocll at.alltirnes.v The. carnsfopcrate to move the striker block positivelyback `and forth which. thus operates thev earn.: slide mounted upon-fhalls. 35 and thus. causes the operation vofthe sleeveftoivhiohwit iseonnected...

The cam slides are retained place upperportion 3.6. offthe cam housing 37 and .a top vineiosure. 3.8 lis-'provided'.to entirely house thelearns and pro-videan,,Qilehaniber or reservoir adapted tobe maintained: partly filled With-oilby a suitableforoe feed oil Supply,` l ff; A

` The earnshafts. 29. and. 30 are'e'a'ch provided. With gears `39 which intermesh rtogether, one of Wliiohbeingrigidly'conneeted to. a bevel.V gear-'.40 vvhiehisoperated-.by a pinion- 41- mounted fat, ther upperL end of a camshaft 42.which is-operatedsin lthe eusr toma-ry manner roni-(theengine.The cam.- 130 proper speed and this causesthe constant rotation of thef' cams tof'reciprocate lthe sleeves back andforth. 3" The camsha'fts'and camslide plugsv are mounted dir e'ctly above lthe cylinder of the engine and as will'beseen from Fig. 2l the two valve sleeves 6 and 7v and the stationa ry supportingsleeve of chamber 4 are lov cated only a slight distance'above' the limit as at 45 with the'upper end of the'cylinder';

The' vvalve ports extend upwardly so Vthat they may communicate with vpractically the entire i verticall extent 'of the. valve sleeve openings when these openings Varel in the proper position. The fuel flows into the "two valve ports 43 yand 44 `simultaneously @the striker block will obtain.

thru the openings provided on the opposite sides of the sleeves and similar flows out of the two ports simultaneously .when 4.the sleeves V` are in the properpositionfor `the exhaust period. :i

Referring more particularly to. Figs. 7 to 10 inclusive, the cams 31 and 32 controllingY the cam striker block'26 are indicated in full lines inV these figures and likewise the opening 8 in the outer sleeve 6-is indicated in full lines. The cams 33 and 34 which control the cam striker block 28 are shown in dotted lines and the openings 9 and 10 of the inner sleeve 7 are correspondingly shown in dotted lines in a diagrammaticmanner. As shown in VFig. '7, the cams and the strikerl blocks are in such position that the 'opening 8 is in Vregistration with the opening l9 and both of these openings are located centrally-above the cylinder. and therefore in registration with the openingV port l1 as also shown in Fig. 6. In this position the piston is just starting to rise so as to exhaust the burnt gases which will be deflected-to the left by the deflector 14 shown in Fig. 6. :The cams 3l and 32 rotate in the direction indicated by the arrows and these cams are provided with surfaces such as 46 which are concentric with the centers of rotation. concentric surfaces 47 arealso provided on the cams so that when theV cam striker block is located by a surface VV46 of one cam it will 'be 'in contact with Va surface 47 ofthe other cam, and as these `surfaces are concentric with the axis of rotation nomovement of The striker block, due to the design of the cams, is maintained stationary for a considerable period of time which is abo-ut to start with the engine at the period indicated in Fig. 7, during which time the piston travels upwardly and exhausts the burnt gases while the two valve slides are stationary. After a slight movement of the piston Similar froni the position-indicated pin Fig. 7;the block '26 remains-stationary and 'consequently the Vouter sleeve' is stationary-butthe i camV surfacesof the cams 33 and34` arelsuch that the block 28^will begmoved to the lef-t ina positivemann'er solvaslto close the cyl-V kinder ports and shortly thereafter place the openings-8and ports 11 in registration -with Vthe intake openings 10V ofthe inner sleeve. j

The piston will then travel downwardly untill-itl reachesa point `indicated in Fig. 8 kduring which time the vsleeves .remain'fstationary while the Vfuel is suckedinto the c yl- TheV compression period starts,V as' Vindicated, in 9 with'the portf8 `remo'vedto the left 2 of the center .off` thej cylinder 2 and sov consequently out-'of'registration zwithl the l ports 11. Thus the' outerfsleeve is'. placed l between theports 11 and openings VA9 Aand the two sleeves remain- .this fposition during vthe compression kperiod and: consequentlyn'o relative-movement takesplajce rwhilefthe sleeves are subjected to. arpressure at1 Vthe ports 11; It is ltherefore unnecessary'toprovide` piston rings ony the sleeves lsince ."considerable 'distance extends-between'the openings1f8 and Q 'during pressure periodsand thus prevents any leakage .fromv taking place around" and between the sleevesg f After the compression period .has been; completed as indicated in Fig.'10.,the fexplosio-nfftakes place bytheliri-ng of 'the-spark plug v48 in each of,thecylinderports.y

, `Duringtheinterval occurring betweenthelfl-bo i positions indicatedain :Figs.q9'and 10, the sleeves and the gcam lstriker :blocks are :maintained l stationary and these parts are ystill maintained stationary ifor som'ef time.l after theign'ition period and "during vthe Vstart of the expansion stroke -of- .the pistonV The camswhich4 control the two striker blocks, as shown,I are 'so designed that -the ymotion-imparted to the blocks is very quick so that a veryrapid opening1A andclosingaof the valves will be produced. The valve openingsf8,9, El() 'andgll being Vweide* and extending thru'out nearly the entirecircurnferenceof the sleeves :will produce and make possible a :large `valve opening tofpe'rmit fthe@ rapid ,iiow' Vof if fuelandjexhaustfgasesl lThe valve being Y 'operatedposi-tively in Vboth directions` per,-

,mitsl their f rapid opening. "and closing since the time'delayof-a springjaat' high speedsis Y @not present: -z "gq i, The entire head of 'the eng'iinecfniay'fl .be detachable soythat vthefentireffvallve mechanismmayfbe removed-by the "re-" moval o`f-V- the 'boltsf '49. The upper housi ing-A88 and ltheupper 'partBG of the yvalve l I housing ar'efadapt'edt'o be easily detachedv for" inspection Yandremoval ofthe cam slides; In order toV prevent the incoming Vfuel mixture from linding itsway between theval've'sleevesv .6 and :7, an auxiliary. sleeve apart 50 isfixed thereof andiWe d01not intendl to'be limited to the p1eciseformf-of construction Whiclrhas `been choseny 'herein for the purpose of our invention-. i

l. Inan engine ofthe class described, a cylinder, avalve port at one endof said cylinderfa piston adapted to* reciprocate in said cylinder, a pair of sleeves mounted one Withii'nfthe other adjacent to: said-'valves port, a pairl of` openings-fin the'y inner.' sleeve adapted to communicate successively 'with saidfvalve port, al partition; Within said inner sleevel to close 1- said sleeve'` between said pair of open'- ings", an'opening in ythe outer sleeve adapted to vregister"periodically 'With' said: valvey port, means, for reciprocatingreach 'of said sleeves longitudinally, and Ameans rfisxed tof` said inner sleeve; forV guiding said? outer sleeve;

2: In' anf'engine oli the class described,a cylinder, al pa'irof-J valve ports at the outer end: ofj said:I cylinder,; apiston adapted toreciprocatey in cyl-in'deiga. pair of sleeves mounted"fone Within4 their other adjacent to said valve p orts,fa 'pair ofy oppositely posirtionedf intake openings inpthe innersleeve and ings?V in the inner sleeve v adapted ltocomrnunilime-Sab inder, a pairofY `valve.` ports 'extending upf War-diy' and? opening into the head of said cylinder, a pair 'olf telescoping reciprocating sleeves the outer of Which-'is provided With-a pair of openings, the inner of which is provided VWith tvvopairs of openings, a partition in 'said inner sleeve located betvveenthe pairs of' openings, means forrecipi-ocating said outer and 'inner sleeve to move thel openings so that they Willl register simultaneously with both ports of the cylinder and alsofmaintain said sleeves stationary during the entire period of. anypressure period of 'thezengine Y' I In: testimony rwhereof we aliX-Iour signatu'resrfv i BRIAND KRUYFF. VAN DORSSEN. IVAN L. PROCTOR. s

a pair of opposite'lyl positioned exhaust-open the sainer between thel inletandtheiexh'iaust 'Y openings, a pair ofl `openings in the outer sl'eeve adapted to:register periodically with 'said val-ve ports, a; pair:l of'engine driveni roL i tatabl'e cams foreachy sleeve;4 and areciprocating member operated byfeach pai-rfof said cams and connected' tothe sleeves to positively` reciprocate: the 'same in both directions;

-. 3f. In. an internal' combustion engine, "a 'cylindena pair 'ofvalve ports extending up- Wardly and opening-into thehead of said cylinderga pain oftele'scoping reciprocating sleeves tllejouter of Whiehjis'provided with a painiof openings, the inner of whichV is pro- `vided'fvvilth'twopairsof openings, a partition Y in said inner sleeve located betvveenthe pairs off openings, neansfonreciprocating said outer iandz'innerr sleeverto nove the openings so that they Will register simultaneously with both ports of the cylinder, as and?V for: the 'Y purpose described. f

A- 4:2 NInaninternal combustionengine, a cylyinder', a pair of valve'p'orts: extending upinder, a pair of teleseoping' Vrec'ziprocating Waadly andope'n'ing'into the head or said cylsleeves they outer of which; is providedI Withl a painof openings,.the innen of Which' ispro? videdivvith two pairs of openings, a partition inssaidinner sleevelocatedbetween'the pairs of openings, means forrreclprocating said outf en

Images