US958885A - Rotary engine. - Google Patents

Description

G. v'. MOURS. ROTARY NGINE. APPLIGATION FILED 531111.11, 190s.

958,885, Patented my 24,1910.

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ROTARY ENGINE.

y I APPLICATION FLED SEPT.11,`1908. Y

958,885. Patented May 24, 1910. 3 sums-SHEET z,

r G. F. Moos.

ROTARY ENGlNE.

y APPLICATION FILED SEPT. 11, 190B. y 958,885. Patented May 24, 1910.

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GEORGE F. Moons, or MOUNT VERNON, ILLINOIS.

Y Specification of Letters Patent. Patente@ May 24:, 19]

. ROTARY ENGINE.

Application ined september 11, 190s. serial Nq. 452;@47.

'dfStat'e'fo-ff Illinois, have invented a lnew :st-illfu'rther obg'ect of the invention 'is 15 ro'vide a valve o `this typein which' one W endl lbf ,the valve controls one of the inlet i?, porte-whenthe'piston is movin in one-r l t of the il 'ecti on,jf` `vvhi le. the opposite en valveis agrnged to control a second inlet when'the engine is to rotate in th'e opeepassageflofthe exhaust. A 1still' furtherf object ofthe invention is to 1,25 provide ,a1- ,\,11 ;ivel'- 'forniof rotary7 engine in "hich the abutment and piston are connected o each other so .that there is no frictionai resistance, 'onweer between the abutment l and' pistn, andthe steam or other actuating ,41 vHuid cannot leakbetween t-he two.

A 'Still further object of the invention i s 'provide arevoluble piston drumhev'- ingentiencircling; ring that is ivotally con-' 'nectedto the abutment and) serves 'as a means for* directly operatin the latter.

A 'still .further object of t e invention is to vprovide a ',pivotally -I'nounted abutment ,which is materially strengthened and reinforced -so as t0 Aavoid dangerA of breakage lo -or binding vvhen' :subjectedv to heavy pres- 4fstill:further object of the invention is to .provide a Inovel iiieans fon supplying lubricant to the parts of .the 'piston and :4g Aaloutn'ie'nt exposed to frictional weer. i i .With thesefand other objects in view, as

` will more 'fully hereinafter appear, the in- '.v'ention consists in certain novel features of construction andl arrangement-of parts,

hereinaftenfully described, illustrated in -the vaccom-.panyingdrawings,-V and more.jpar' 1 t-ieularly pointedoutiu the appended'i claims,

it being understoodthat various- 'changes in the form, proportion, size and minor '55A details of construction may be madewith- A [ount YrnQmfin-the county ofJelferson nd @usefullRotary Engine, of which the' A:hasfor its fprincipal lobject to provide itedire'ction, while4 in either position the c ,tralportionof-the valve will permit the .out de urting from the spirit or sacrificing an `o theadvantages of the invention.

-n the4 accompanying drawings :.-Figure 1 is an elevation of en engine constructed in accordance with the invention, aportion 30 of one o f the cylinder heads and part of the steam chest'being broken away/'in order to 'more clearly illustrate the construction.

Fig? 9 i518, transverse Sectional view onl the line 2-.2' of Fig. 1'. Fig. '3 is a vertical 65' section en t-he line 3 3 of Fig. 2, showing fthe construction 'ofthevalve and its operfating mechanism. Fig. 4 is a -plan view 'of ffthe slide valve and vc'oacting parts in one rative osition. Fig;A 5 isla similar view 70 the sli e valve-and coacting partsin another operative position. Fig. 6 is a detail perspective view of a portion of one'of the roller frames. Fig. 7 is a transverse sectional view through the abutment on -thcj 75 line 7-7 of Fig. 1. Fig.'8 is a, similar view- 'on the line 8 8 of Fig. 1. I 9 is a detail view showing theconnectlon between the abutment and ist-on.

Similal`l numera s of Vreference are eing() d ployed "tok indicate corresponding parts throuhou t the several figures of the draws; mcs.' x:The engine-is mounted on any suitable sole plate or foundation andincludes a, pair of.85

'cylinders l0 ofprecisely the salneconstruce;

t1on and arranged in slightly spaced 'relation. Each cylinder comprises .a'fmain; circular casting 15 havingolting daniele 1562.- to which the heads 17 aresecured, lofi the'heads of the cylinders-are'provided with* bearingopeningsfor the reception of' a ma1nshaft 19' Athat extends through 4both' cylin-w. ders and carries the two piston drums 20 and# posed diametricallv'opposite each other-sothatone or both-of Vthe pistons is constantly A under pressure. Eaeh'of' thepiston is in the form` of van annulusl 23 exterior' :t`o;'100

which is another annulus 24 'having-.olie Q Ilfflj formed with aradial web 25 and theothieir'f end provided with a corresponding web 26.,- The lnterio'r of'eachmain cylinder is accu-z.

yrately machined to size and the Webs 25 and '5105- 2 6 are,als'o, niachined'to fit the' heads of the* ,corresponding cylinder steamtightsothat special ackin isv unnecessary. The, 'exterj nal diameter o the drum '23 and the 'internal' diameter of the' ring 24 are so related .that'lil' there may be introducedy betweenthem' a circular series of antifriction rollers 27 having journals 28 at their ends. seated in radial slots .29 forined at appropriate=points around two arallel rings that are'joined at 1nterva s by spaced junction bars or rods 31, as shown in Fig. 6. The drum 23 1sv suported by radial spokes 32 extending from a.

11h33 carried by the shaft 19 which latter 'is central to the respective cylinders 1t). The

hub 33, however, iseccentric `to the vdrum'23` located close to theinnerwall thereof being1 .in t e particular structure shown in the drawings. The bore of the hub 33 is shown 15 as rectangular and receives a 'similarly shaped block 34 of less length than the slot. The block 34 isvengaged at theends by radial-'set screws, 35 passing through holes.

tapped inthe hub.34 so that the-drum 23 maybe accurately adjusted with relation to the Arings 24 and rollers 27 and thus maintain'the rim of the 4ring 24 in constant engagement with the inner circular face 'ofthe cylinder 10.

- Projecting lfrom the main casing ofe'ach cylinder is Vapair of integral pivot 'ears 36,

and between each pair of ears 1s mounted an. arcuate ami 37 provided with a strengthenf' ing rib or ribs, yand said .arm carries an abutinent-38 which preferably. is hollow for the purpose ofreducing its Weight. The abutment "is curved "on-a line struck from the.

axis of the pivotbolt 39. 'The abutment passes through a receiving'slot formed' in this boss has an piston by a knuckle v of'. a cylindrical of this .abutment 38 and lco the .circular or peripheral Wall of the cylinder,V and the walls ofthe slot are extended and vprovided with suitable packing 42 in order to preventl leakage of ,steamat the sides of the abutment.- The inner end of the.

abutment is connected-to the ring 240i the joint offsuch construction as to permit y ment, while preventing the The periphery of, the rin with ana proximately cyindrical .boss/i3 that exten s the A full width ofthe ring,

a proximately cylindrical .opening 44 that is esignedlfor the reception block 45' 'at fthe inner end nn'ected'" 'tof the .abutment by .a contractedneckportion 46.

The `inner Vend ofthe abutment is provided v- With 'ai curvedrece'ss 47,' the .wallof which` is shaped toA4 conform to4 the perihery of' the...

l ective con. nectionthat will" prevent the passage of steam54 abutment bossi 43, I thereby forming ,an e

while insuring vfree movement of the l'rojectin'g.@from theV end portions of the licylindrical.blocky 45 and practically forming I acbntinuation thereofare tw. arms'47 that pass" through nectedto-'the -pivot bolt 39 by' reinforcing arms 48' ',"so' tha t there will be little or nor eat -reedom 'of mfove,

passage of steam.'-

-24' 'is provided".

and i owin arcuate slots 48 `formed in the wall ofthe cylinder, 4vand these arms 'are conautres slots and thus serve to positively prevent the escape of steam through such slots.

- It will be. noted that during the rotative movement of the istonthe outer face of the ring 24I vill sidably engage the inner circular wall ofthe cylinder, but the travel ofthe ring is com aratively slow even where the .main body oV the piston is i'otatinf'atv highspeed so that there is but little .oss from friction.

ln" order to provide for the automatic su pf ply .of lubricant to' the connection between the abutment and piston drum each of the arms 47 isprovided with an opening extending4 4axially therethrough, and to the outer end of thefopenmgis connected a pipe 50 which carries an oil cup 5l. Each time the abutnient moves down the pipe 51 is moved be yond'the horizontal and lubricant will iiow by gravity from the supply cup to the openings bored in the arnis, and from these openings lead minute passages 521throughwhich the ,oil may flow tothe connect-'ion between the` abutment and pist-ouf ring, and this oil yis furtherl free to flow.V throu' h the ring for the' purpose of supplyingA ubricant to `the Y anti-friction rollers. i y. Y

Mounted above and between the cylinders is a steam` chest 50 that is connected to one cylinder' 10 byt'woV ports 53-and 53h and to the other cylinder 10 by two'ports' 54and 54", the ports 53"4 and54? serving as inlet ports whllethe 'engine-is moving 1n one di-- recti on,y whilethe ports/53" and 54 serve as exhaust ports. V`llVhentln'e piston isto rotate in the opposite direction, the ports 53h and 54? bec'ome inlet ports and the ports 53 and 54 serve 'as exhausts. Mounted in the steam chest is a D.valve 55`., The 4valve is a double one, and hasfa single exhaust cavity 56 that is inl constant, communication with a. main exhaust'. ort 5'( While one end of the valve is controling-the flow-0fv steam through one i of the setsoijports` 513il and 54.*,"01' 5.3"1 and 5.4",` the other setofjports is kept'. in,v come. .muncation with the exhaustcavity. Asjthe lports tothe location-of. the pistons .at diametrically opposite points, each'side of the .yalve has at each. end a projecting plate 5 8' that is provided with apport 459- through which'the steam will pass to one ofA the -1n let ports before the end of the. valves passes beyond and opens the other port. Th

4 e valve stem 61 extends outside the chest and must be opened in successive 'order I' is connected by a link 62 to a bell crank lever extendin therethrough, the opposite heads 63 that is mounted at lthe point of bifurca- .of the cylinder being provided With arcuate ,tion .on'a crankshaft 64. The approxislots,l a cylindrical piston mounted eccenmately horizontal arm of the bell-crank letrically on theshaft, a ring encircling said ver is connected by a rod 65 toa strap 66 thatpiston, a pivotally mounted abutment ex-V 7o encircles an eccentric G7 on the main shaft, tending through 4an opening in the curved the eccentric being so shaped and mounted. Wall of the cylinder and having its inner as to properly timel the movement of the end connected to the piston ring, arms exvalve. The shaft 64 hastWo cranked portending from the inner end of the abutment ..16 tions'68, and 69, and thebell cranklever is through lsaid arcuate slots, packing strips 75 operate in connect-ion. with the inlet ports'.

1 25 the usual type, and this lever 1s connected by tion of the engine Will therefore be reversed.

'3S tion of the engine, so that the steam-may be 55 rassure in the Acylinders is likewise re'-` mounted onthesmaller crank 68. This crank arranged in the .inner walls of the heads on 68 lies normally With its axis in the horizontal Y opposite sides of said arcuate slots and bear- 'plane of the axis of the shaft, and by vroing against the' sides of the abutment, and 'tating said shaft through an arc of approxibracing armsyconnectedto the extended arms 15 mately l8v0vthe fulcrum point of the bell O'f Said abutment l Y 80 crank lever may be shifted and movement 2, In a rtary engine, a cylinder, a shaft will. thereby be transmitted to the valvefor extending therethrough, the opposite heads the pur ose of shifting the latter to an exof the cylindfe'ri being provided with arcuate tent su cient to permit either 0f it ends t0 slots, a'eylindrical piston mountedccentrically upon 'the-shaft, a ring encircling the 85 piston, an abut-ment, a` stuffing box arranged in .the curved yvall of' the cylinder for the 'l passage of the abutment, a pivota-lly mounted arm connected' to the outer end of the abutment, apa-ir of arms extending 'from 9o the inner end of the abutment through said arcuate slots,' pivoted vbracing arms connected to the extended arms of the abutment, and packing strips arranged on oppo-v site'sides of the slots and bearing against 95 the o y,posite ends of the abutment.

3. lin arotary engine, a cylinder, a shaft extending therethrough, the vopposite heads of the cylinder being provided with arcuate slots, a cylindrical piston mounted eccentric- 100 'allyv on the shaft, a ring encircling. said piston, an arcuate' abutmentl pivotally con'- nected to the ring, bracing arms connected to the inner end 0f t e abutment, a lubricantcontaining cup, and a-feed pipe running 105 from the cup to the pivotal connectionvbe- I tween thebracing arms, the abutment vand tinues to run under its own momentum after l the ring, said pipe being arranged to move steam has been shut off at the throttle (5, to varying angular positions from the horithe lvalve 55 has its crown pierced by a i port 78 normally closed by' a valve 7?, the stem Z8 of `which"passes through suitable guide yokes' .formed Von the D-valvc. There is thus provided a means of communication between the steam and exhaust sides of the- -valve. "'-lWhen steam is shut 0H any tendency toward the formation of a vacuum on. the steam side of the D-valve isyprevented by the lifting of the valve 77, while head To control theposition of the valve, a re-v versing lever 70 is employed, said lever beH ing provided With a latch bolt 7l `Which may be engagedwith a notched quadrant 72 of a rod 73 tthe crank 69 on the shaft 64, By moving the reversing lever full over, the valve will be shifted from one extreme position to tlie.other, and the vdirection of rota- By partly shifting the lever, and then locking it by the quadrant, the lead ci the valve mayy be Iadjusted, so' as to eilect cat oil ot the steam at', any desired point in the rotathereafter used expansively. t

The engine is .provided with a throttle valve 75 of any ordinary construction, this vvalve being preferably closed before the 40 valve is shifted in reversing.

' In order toV prevent the formation of a 'v acuumor head pressure as the engine condarin@r the operation of thefengme. 4. lPn a rotary engine, a cylinder, ashaft extending l`therethrough, a cylindrical piston mounted eccentrically on said shaft, a ring substantially cylindrical recessed boss, a

pivotally mountedl arcuate abutment extendl through an opening in .the `wall "ci the cy inder and having 4a curved recess yto reloved A tending from thel abutment and itting ln order to preventany tendency'of the Within the recess of the boss, .cylinder headsto springYouimafrdly..under1L 5. Ina rotary engine, a cylinder', a shaft steam4 pressure, collars @are applied tothe extending therethrough, an- 'eccentrically j 60 shaft 19, i]n rnediately ladjacent tof-theouter mounted cylindrical; 'piston carried by .the 125 walls of the cylinder hea-ds and these col'- 'sha ft, la :ri-ng encircling the piston and lars are .held tothe shaft by suit-able set .which said piston isfree 'torotate,' an arm screws a a pivotally connected lto the cylinder, an abut=` What zsvclaimed iss* ment extending-frOmoneendpf the armand mi L] 1n rotary engine, a cylinder, ashaft linto the cylinder, said,l Vitlmtment beinglso zontal to permit gravityy feed of lubricant 11o encircling the piston and provided with a l ceive the'boss, anda cylindrical block ex- 120 i `pivotally connected to ment extending from thev arm and into the curved in an are concentric With'the pivot bf the arm, cooperating means upon the ring land abutment for connecting the said ruig .and abutment, and braces connected to said cooperating means and extending to .the pivot of the arm.

'6. In a rotary engine, a cylinder, a shaft extending therethrough, mounted cylindridal piston carried by the shaft, a ring encircling the piston and in which said piston is free to rotate, an arm the cylinder, an abut cylinder, said `A abutment being concentric With the pivot of the arm, Yan approximately cylindrical boss upon the rin and extending throughout the -width thereof, said bosshavlng an approximately cylindrical opening therein, a cylindrical block extending from the abutment and mounted to rock Within said opening, the inner end of the abutment having a curved recess to the periphery of the boss.

7.` In a rotary engine, a cylinder, aV shaft,

extending therethrough, a cylindrical piston l `mounted eccentrically on tne shaft,'a ring encircling said piston 4and provided with an eccentricallyl shaped to conform 4 therein, an arm pivotally connected to the cylinder, an arcuate abutment` extending from the arm and concentric with the pivot of said arm, said abutment `projecting into the cylinder, a substantially cylindrical block upon the abutment and mounted to rock withinthe recess in the boss, slots within the cylinder head and concentric with the pivot of the arm, braces extending from said pivot, and means extendingfffrom the block and slgidably mounted ivithi'n'" he slots for connecting the bracesyand bloeit."

9. In a rotary engine, a cylinder, a shaft extending therethrough, a block upon the shaft, a cylindrical pistoni-having an eccentrically disposed hub slidably mounted upon the block, adjustin scnews engaging the opposite portions o? the hub and block, a

ring encircling the piston and separate therefrom, a pivotaly mounted arcuate' abutment slidably `mounted Within the cylnder, and a steam-tight knuckle connection between the abutment and ring.

i0. In a rotary engine, a cylinder, a shaft extendingr therethrough, an eccentricallyy mountedcylindrical piston carried by the shaft, a ring encircling and separate from the piston, an, arcuate 'abutment slidably mounted Within the cylinder, awsteamtight knuckle connection between the abutment and ring, a pivot device outside of the cylinder, and separate' connections between f said pivot device and the inner and outer ends ofthe abutment. 1

In testimony that I claim the foregoing as m own, I have hereto aixed my signature 1n the presence of twowitnesses.

. i GEORGE'F. MOORS.\ Witnesses CHAs. R. RELLERA,

- EARL B. HI'NMAN.

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