US1261941A - Rotary valve for internal-combustion motors. - Google Patents

Description

D. W. JONES & W. J. MILLER.

ROTARY VALVE FOR INTERNAL COMBUSTION MOTORS.

APPLICATION FILED JUNE 10, 1914.

1,261,941 Patented Apr. 9,1918.

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fit 2 km D.-W. JONES & W. J. MILLER.

ROTARY VALVE FOR INTERNAL COMBUSTION MOTORS.

APPUCATION FILED JUNE (0, I914.

Patented Apr. 9, 1918.

2 SHEETS-SHEET 2.

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W H ll ll'll II I "III Tn STATES- PATENT DA.VID.W. JONES, OF CHICAGO, ILLINOIS, AND WILLIAM J. MILLER, OF'COLUMBUSQ'. OHIO, ASSIGNORS OFON'E-THIRD" 'IfO'lJULIUSFL STONE, 0F COLUMBUS, OHIO.

ROTARY VAL'V'EFOR INTERNAL COMBUSTIQN JVIOTOBS Application filed. S'une 10, 1914... Serial No. 844,175.

To all tvham it may concern; l

Be it known that we,- DAVID Jon'nsand Vl' ILLIAM J. MILLER, citizens of {the United States,- residing at Chicago, in. the county of Cook and State of Illinois, and in. C01

which the following; is a descriptiomrefem ence being had to the accompany ng drawings,,whichform a part of ourzspecification Our invention relates to arotary ordlskv valve .for internal combustion 'motors,ha.v-

ing.;tor-its objectthe provision ota valve.

whereby greater or increased efficiency be had, namelymore horsepower bBzdGll-V- ered with a. given sized motor by reasonuof.

the. positive action of thefivalve;

A .further obj ect. of theinvention is. the:

provision of a construction whereby 21 .more

economical. motor will be produced t'romthe. standpoint of manufacture, becauserof the fact that a sin gle valve or member is adapted to serve a plurality of cylinders, 1 controlling. I boththe intake or supply andthe exhaust of. the. gases, with the result; that better. shaped combustion space. in the. cylinders will be had Iby reason. of the fact 'thatla. single port need only'beprovidedrto serve both.

assthe inlet andthe exhaustport.

In addition 'to'the elimination of. the parts by reason of the employment of'sour.inven-' tion,- the invention also results in. the .elimlnation .of the mechanical, noises heretofore encountered. with valves as at present in: use due to .the multiplicity ofparts and the tend-:-

encygor likelihood of the respectiveparts be,

. coming. .looseuor worn,;as well .as theeliminationv of the. resultant noisesdue tothe op; eration or movement of the various parts;

In. addition .to the [foregoing advantages,.. the invention possesses othenadvantageszinherent in the construction, which :Willbfll tiontotwo revolutionsotthe crank-shaft;

dcscriptiom- In. the drawings Figure .1 -is an end elevation: of, a motor:

; ports of the respective; cylindm'slz may; be:

provided with our improved valve. 1 1

Figgflais a. side elevation thereof...

.the valve removed.from its.casing.

Specification of Letters Patent.

Patented Apr. 9,1918% Fig. t is a top plan and partial sectional View on the line M of Fig.2.

Figl5 is a sectional view taken on the line 5+5 of 'F ig.. 3 and looking in the-direction of the arrows.

Fig; 6 is a sectional view taken on the line 676 of F ig..3, looking. in the direction of the arrows... V

Fig. 7 is an end elevation of our improved valveremoved fromv its casing.

Fig. 8 is a vertical sectional view taken on the line 8.''-8 o:EEFig. 7 lookingin the direction of the arrows.

' V F -9is a sectional lviewt-akenon the line-v 9 9: ofFig. 8,-lookingin the direction of the arrows.

Figs. 10; 11, 12, and 13 are diagrammatic. views representing. l a .twoecylindered lino-tor provi ded with ouriimproved valve illustrate. ing..,the :relative positions of the valve and. port'of a fourecyclemotor; Fig. 10 illustrat in'gthe valve in positionto permitlone'of the cylindersto exhaust while the second cylinder is beingsuppliedor namely at the. suction stroke; Fig.1l illustrating the valve. in suchposition-that thefirst mentioned cylw inder .is being suppliedlornamely. isat the suction stroke, while the second. mentioned: cylinderis atthe compression stroke; .Fig, 12' illustrating the valve in such position that the first .mentioned cylinder: is at the compression stroke :while the. second. men tionedfcylinder is atv thepoint. of ignition; while.Fig. 13 illustrates the valveinLposi-l tion so that the first mentioned cylinder is atl ignition. point and the second mentioned cyl index: is at thexexhaust point or .cycle.

In the particular; exemp lification- 10f our inventiom. as. illustrated. in the drawings... our. improved'valve is shown.appliedto-.a-- two-cylindered motor,with thetports of the; cylinders spaced ninety degrees .apart,. and.- the valve: so gearedto the crankeshaft of-the; motonthat the valve will vmake .one- .revolu-'- It .willbe understood, however; that the vention mayibe appliedto. 1a motor-provided? with va lmultiple of .:cylinders,-. and! that consecutively spacd. vaqg artuas for. example}. say t;fortyefive-degrees, in which instance the: valvemay be so geared.to..the ecrankeshafti as,-. to make sneer-evolution toofour; revolutions.. at the crank-shaft; it 1 being;; undenistood that any spa the ports may be had suitable for or sized openings whereby the desired result will be secured. ln the illustration of the adaptation oi our invention, the pistons of the two cylin- 1, e rably shown at and Q; th cylinders e l.

, the cylinders be-- half stroke in 1 being illustrated at l 2, and land the hon ing illustrated in dotted the piston-heads l7 and oi and 16 respectively, are also shown in dotted lines, see The pistons are provided with the usual pitnien illustrated at 19 and 20, respectively, which are also shown in dotted lines and extend into the cranl:casing 21; the pitinen l9 and being; connected with the usual cranks shown in dotted lines at 2'2 and respectively which are secured to the crank-shaft Secured to the crankshaft preferably to the outside of the crank-cas 1g 21, is a sprocket-wheel provided with sprocketchain 26, whereby sprocket 2? is rotated; sprocket 27 being keyed or otherwise secured to wornrshatt 28. The worm-shaft 28 has suitable bearing, for example in bracket 29, on the motor and in the lower portion of the valvecasing 30 which is secured to the motor casting or cylinder portion, being preferably "formed integral therewith as shown. The casing or housing 30 is torn ed to provide a circular chamber and is preferably shown provided with a suitable nun: of lobes or bosses at 81 provlded with threaded holes or sockets to re ceive the bolts whereby the asing-cover 83 is reniovably securec 111 ce; the bosses or lobes being more clearly snown in 2 while the cover and retaining bolts are clearly shown in i.

The casing member or cover 33 is provided with a centrally disposed or portion 33, which is elongated to constitute a gas-port and is adapted to receive the usual carburetor inoicated at 34, Fig. l; the can bureter being secured to the port 33 in any suitable as, for example, by the short pipe or tubing 35 shown in 1 which may be screwed onto th carbureter and suitably secured to the elongated port 33 of the casing-member or cover The valve-casing or chamber preferably composed of the portions 30 and E33 is bored or channeled to receive toe end of the wormshat't 2"; the construction of the casing in this respect being very clear y shown in igs. 3 and 5, wherein the valve and the worm-shaft are removed in order to more clearly illustrate the construction of the casing; interior or chamber as well as its re lation to t1 36 and 3? of the cylinas ports ders 15 16 resp clvely. L

a 1 he 0 cure or gas-cosh olh of dislt or circular rest.

erably sl'iown an integral member or casting the outer periphery or circumference whereof is provided with gearing or teeth 38, forinedso as to niesh with wormshaft 28.

The interior the valve 38 is intended to divided into separate portions or chainpreferably by means of the irregularly partition or wall 39, n ig. 8, whereby the nr :or portion of the interior of valve 38 constitutes gas supply or inlet chamber, indicated a a0 in 8.

lhe one side wall of the valve is provided wi h the hub portion ll which is adapted to have bearing in the boss or porion ct cover member 3-3, see Fig. 5 and the hub ll is provided with an opening;- or port which constitutes the gas inlet 49, as clearly shown in 9; the opening 42 being in register with the opening or port extending; through the elongated portion 83?, and, therefore, receives the gaseous mixture from the carbureter 3%. The port l2 admits the gas to the chamber 10, which latter is provided with a port d3 est-ending through one side oi the Valve so as to supply the cylinders with the gaseous mixture when the valve 38 is rotated suiiiciently to bring port 43 into register with the port of the cylinder indicated at 37 in Fig. 5. The other chamber formed by the irregular partition or wall 39 constitutes a discl arge passage or port 44: which extends transversely through the valve 38; the chamber or port being open at both sides of the valve, as very clearly shown in Fig. 9. The ports 4:3 and are spaced at a predetermined distance apart, as previously sta ed; the spacing or distance being determined by the speed of to tation of the valve relative to the speed of rotation of the crank-shaft, the spacing in the particular exeinplification shown in the drawings being a distance of ninety degrees, as clearly shown.

ln toe preferred construction, the ports in the valve, namely ports l3 and 414:, are pretl erably elongated, and the ends of the ports, forwardly presented in the movement of the valve relative to tl e ports in the cylinders are preferably substantially semi-circular as very clearly shown in Fig. 8 and in dotted lines in Figs-.10 to 13 inclusive, in order that a wider area or full opening will be presented the initial opening of the ports and thus permit of a tree and rapid llow of the gases,

The side or" the valve opposite to the side described as provided with the inlet opening 42, is provided with a boss or hub do. which has bearing in the socket so formed in the valve-casing or chamber as very clearly shown in Fig. 5. It is evident, therefore inber 83 of the valvenae-1341' operative position on :the cylinders: I

In order that a gas-tight relation. maybe maintained between the rotating valve 38 and the walls of the cylinders adjacent the ports in' the respective cylinders, we" pro-' vide a packing ring 47 of suitable material fitted. in a circumferential socket or: groove aboutthe port of each cylinder; as :for ex amplenin Fig. 6, where port 37isillustratedf in cylinder 16, thepacking ring 47 ;is very clearly illustrated in cross section, being in'-' sorted in the circumferential socket or groove 48in the wall of the cylinder, "and the packingring' is maintained against the side wall ofthe valve 38'ibyv meansof springs 49, of any'suit'able numberand COD:

struction', whereby a constant gas-tight con-; I nection willibe effected =to prevent the in 20 take and exhaustgases-from escaping along. the sides of the valve. As the valve-38 fits snugly within the chamber. of thevalve-casr ing, it isapparent that the supply gasesicane not escape from the chamber in the: valve. except through the port 43 arranged'in one side of thevalve when said port is brought to register with the port of the cylinder;

the ports :of the cylinders. being closed by the blank side or wall of the valve 38 when the latterhas been'rotated so as to move the ports 43 or 44 outof register with the ports in the cylinders.

In the diagrammatic :views shown in-Figs. 10 to 13, inclusive, we illustrate the relative: positions of the valve during th'evarious periods or cycles of. a :tw'o-cylindered motor. For example, in Fig. 10, the one cylinder is shown at the exhaust period, namelyicylinder 15, while the second cylinder,.-namely cylinder 16, is shown at the suctionor intake period; at this stage orperiod, the dis-' charge port 44 is shown registeringwith port 36 of cylinder 15 so asto allow the expanded gasesfto' freely. exhaust from the cylinder; whilethe supply port 43 (whlch extends through but one side Wall of the valve 38 and is, therefore, shown in dotted lines in the diagrammatic views) is'in register with the port 37 ofthe cylinder 16; the

piston of this cylinder being at the suction stroke.

In order that the gases may exhaust from the cylinder by means ofexhaust port 44 in the valve, the cover member '33 of the valvecasing is, of course, provided at suitable points with openings which are provided with a suitable exhaust pipe as shown at 50 in Fig. 1. The exhaust pipe 50 is preferably shown bifurcated so as to have the one bifurcation 50 communicatewith opening 51 in the cover-member 33, while the other. bifurcation 50*, see Fig. 4, communicates with the other opening 52 in cover-member 33,

In Fig. 11, thevalve has been advanced or rotated a quarter of a revolution so as to move. the exhaust port 44 out of register with the port36 of cylinder 15 and, therefore,lalso out of register with the opening 51 in cover member 33; while the supply port 43 of the valve is brought to register withiport 36 so that cylinder 15 is being supplied with the gaseousmixture; the piston of the cylinder, therefore, being at the suction stroke or period." In this condition orposition of'the valve, it is clearlyev'ident that port 37 in the adjacent cylinder 16 will be shut off by the blank wall of the valve; a

gas-tight connection being effected by means ofthepacking ring 47.

InFig. 12, the valve has been advanced or rotated still farther, namely another quar 'ter of'a revolution, or rather a half revolution beyond the position shown in'Fig. 10, so that neither'port 43 nor'port 44 is in reg-- ister with the ports of the cylinders; the

piston of cylinder 15 .beingat the compres trated in the diagrammatic views) isv out the exhaustof register' with any of the ports of the cylinders: In this position of the valve, the piston of cylinder 15 would be at the ignition point or period while the pistonof valve 16 isat'its exhaust stroke or period.

Inthe preferred form of the valve thesame is illustrated as an integral member or casting, the" outer surface or periphery whereof is shown provided with the gearing 38*, but it is clearly evident that the valve may be a composite member composed of spaced side walls and separate gearing properly secured together so as to provide the construction described; in such modified form, however, it would be neccessary to so secure the respective members together that a gas-tight connection would be effected or obtained; for that reason it is preferable to form the valve as illustrated in the drawings and as previously described.

It is evident from the construction shown and described, that one valve is made to serve a number of cylinders and, therefore, the number of parts required, as in motors where separate valves are employed, are greatly reduced, with the result that the mecha-nicalnoises encountered with the separate valves will be entirely eliminated.

Furthermore, it is also apparent from the construction shown and described that each cylinder needbe supplied with but one port which serves both as an inletand exhaust port, with the result that, by reason of our improved construction, the cylinders are provided with a better shaped combustion space, and by reason or" the positive action of the valve more horse power will be obtained with a given sized motor than would be the case, for example, with the well known puppet type of valve at present in use.

It is also apparent from the foregoing description and the construction illustrated in the drawings that great economy will be effected in the manufacture of a rnotor provided with our invention.

We have shown and described what we believe to be th simplest and best form of our invention, but the same may be altered in certain respects without, however, departing from the spirit or our invention; the valve may be arranged so as to serve a greater number of cylinders as is clearly evident from the construction; such inediiications may be made to adapt the invention to such conditions without, however, departing from the spirit or" our invention, and we do not wish to be understood, therefore, as limiting ourselves to the exact con struction shown and described.

What we claim is:

A rotary valve for internal combustion motors, comprising a casing provided with aremovable cover, the cover being provided with a concentric tubular extension and an opening arranged intermediate of the tubular extension and the outer perimeter of the cover, a chambered disk, the sides whereoi are provided with axially disposed trunnions, one of said trunnions extending into the tubular extension of the casing and pro vided with an opening extendil there- Sonles of he tor throngh to constitute an inlet for the charnber within the disk, while the Opposite side wall at a point adjacent the periphery of the disk is provided with an outlet opening from said chamber, the forward end of said outlet opening, relative to the direction of no einent o the valve, being made areuate to conform with the ports of a cylinder, said disl: being provided with an opening extendinQ' transversely and directly therethrougli point adjacent the periphery of the disk l in circumferential alineinent with said outlet opening, the side walls of the disk icing united by an integral rib or partition disposed about the opening; extending trans- *ersely through the disk so as to close 0% communication with the chamber within the disk, the forward end of said partition and the opening relative to the direction 01" rotation of the dislt, being made arcuate to conform with the :orts of the cylinder and adapted to constitute an exhaust openin the periphery of the disk being formed in the nat..re or a gear, in combination with a worm shaft meshing with the toothed periphery of the dislr, the worm shaft being adapted to be rotated at a predetermined speed relative to the speed or rotation of the crank shaft.

DAVID EV. JONES. lVlLLlP-lli'i J. MILLER.

O. hEARN, "1

vATI-IARINE Conner.

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