US979794A - Internal-combustion engine. - Google Patents

Description

Patented Dec. 27, 1910.

5 SHEETS-SHEET l.

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ATTORNEY A. PETELER.

INTERNAL GOMBUSTION ENGINE. PPLwATIoN FILED MAY19,1910. 979,794.

HIINUII [Elli WIT/VE SE l 70 A. PETELBR.

INTERNAL GoMEUsTIoN ENGINE.

APPLICATION FILED MAY 19,191()A Patented Dec. 27, 1910.

5 SHEETS-SHEET 2 WIT/VESSES: ,ff/

A TTOR/V E y A. PETELBR.

INTERNAL oo MBUsTIoN ENGINE.

LPPLIOATIUN FILED HAY 19,1910. 979,794. Patented Dec. 27, 1910.

5 SHEETS-MEET a'.

Wl TNESSES:

ATTORNEY A. PBTBLER.

INTERNAL coMBUsTIoN ENGINE.

APPLICATION FILED MAY 19,1910. 979,794. Patented Dec. 27, 1910.

5 HEETB-BHEET 4.

lilf,

A. PETELER.

INTERNAL GOMBUSTON ENGINE.

APPLIUATION FILED MAY 19,1910.

9'?9,74. v Patented Dec. 27, 1910.

5 SHEETS-SHEET 5.

lunmmw WIT/VESSES: lNl/E/VTR i ma/vn yUNITED STATES yPATENT OFFICE.

ADOLPH PETELER, OF NEW YORK, N. Y.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Application led May 19, 1910. Serial No. 562,134.

Patented Dec. 27, 1910.

To all whom 'it may concern:

Be it known that I, ADOLPH PETELER, a c`itizen of the United States, and a resident of New York city, borough of Manhattan, in the county of New York and State of New ork, have made and invented certain new and useful Improvements in Internal- Combustion Engines, of which the following` is a specification.

My invention relates to internal combustion engines having a valved piston and 4designed to operate upon a four-stroke cycle, and the object thereof is to provide an internal combustion engine of the type speci'- ied which is entirely inclosed, that is one in which there are no exposed moving parts except the balance or driving wheel; to provide an internal combustion engine of the type speciiied with improved mechanism for operating the valves thereof; and to pro- Vide such further improvements in and relating to internal combustion engines of the type specified as are illustrated in the accompanying drawings, described in the following specification, and particularly claimed in the clauses of the concluding Q In the drawings: Figure 1 is a View showing a s1de elevation of two cylinders of my improved internal combustion engine, one of the cylinders being shown in section -and the full lines of theflgure showing the position of the parts at about the middle of the suction stroke and dotted lines their position at the end of the suction and beginning of the parts at about the middle of the working I compression strokes; Fig. 4 is a similar view showing .in full lines the position of the parts at about the middleof the compression stroke and in dotted lines their position at the end of the compression and beginningvof the working strokes; Fig. 5 is a similar view showing in full lines the position of the part of the mechanism for operating'the valve of my improved engine; Fig. 8 1s a View showing the same cam as ,seen from the opposite side thereof; Fig. 9 is a View showing the periphery of the cam developed or spread out flat; Fig. 10 is a view showing a detail of a part of the mechanism for operating the valves; Fig. 11 is a View somewhat enlarged taken upon a horizontal plane indicated by the line 11-11, Fig. 2, some of the parts, however, being broken away; Fig. 12 is a similar view taken upon a horizontal plane indicated by the line 12e-12, Fig. 2; Fig. 13 is a fragmentary view illustrating a part of the mechanism for operating the Valves of my improved internal combustion engine, and; Fig. 14 is a similar view showing the parts in a diiferent position.

In the drawings, the reference numeral 1 indicates the working cylinders, these being preferably cast in pairs as shown in Fig. 1 and as many such pairs being located upon a single base as may be thought desirable whereby by a simple duplication of such a pair of cylinders an engine having two, four, six or more working cylinders is readily procured.

2 is the base of the engine and 3 the crank shaft, the base being preferably of the closed type whereby an engine having a closed crank case is secured.

4 is a working piston of the elongated or trunk type, for one of the working cylinders above referred to, it being understood that one such piston is provided for each .working cylinder, and that the'valve operating mechanism hereinafter described is repeated for each working cylinder of the engine. y

5 is a connecting rod or pitman connecting the working piston with a crank upon the crank shaft 3.

The supply and exhaust valves of my mproved internal combustion engine are located in and move with the workingv pistons 4 thereof, 6 being an upwardly opening reciprocating supply or inlet Valve movable in a direction parallel or substantially parallel with`the axis of the working cylinder and having a depending stem 7, and 8 a `similar exhaust or discharge valve having a stem-9. These valves are positively operated in their opening movements, and springs 10, 11 are providedl for returning the valves to their seats after they have been opened by the `mechanism next described, and for holding them closed except when they are being acted upon by the valve operating mechanism.

12 is a lever, the fulcrum 13 of which is carried by the connecting rod 5 so that the lever moves with the said rod and from which it will be seen that the lever while secured to the connecting rod 5 and always partaking of' the reciprocating and oscillating movements thereof, is also capable of an oscillatory movement with reference to said connecting rod about its fulcrum 13. The lever 12 is any element of the valve operating mechanism for the supply valve G, and 14 is a second and similar lever carried in like manner by the connecting rod 5 and pivoted or tulcrumed at 15, this lever being an element of the valve operating mechanism forthe exhaust valve 8.

The levers 12 and 14 N"are swung upon their respective fulcrums as aforesaid by means of a cam 16of the type designated 'as a double loop cam in internal combustion engine practice, 17 and 18 being the two loops ofY the cam race and 1`9 the point where parts of the camvrace cross one another. Each of said levers is provided with a shoe 20, 21 at its lower end adapted t'o travel in the race ofthe cam 16, and each lever being provided with A`a recess at its lower end, the recess of the lever 12 being shown at 22, Fig. 10. The shoes 20l 21 are provided with projections such as23 capable'of rotary movement within said recesses, so that the shoes may follow the race of the cam 16 as will be understood. The cam 16 is -concentric 'with the crank pin 24 of the crank shaft 3 and is secured to the crank shaft in any suitable manner, lugs `25 being shown -f in the form illustrated, through which lugs screws extend as shown into the crank arm 26. The cam 16 is shown as made in two parts secured together by means of lugs 27 and bolts 28. The lower end of the lever 12 extends directly toward the upper portion of the cam 16 so that its shoe 20 engages the upper part of said cam, -while the lower end Yof the lever 14 is bent andy extends half way around the crank 16 so that its shoe 21 engages the lower part of the cam as shown.

Pivotally connected with the upper ends 'the slide bodily upward and toward the of the levers 12, 14 are reciprocating slides 29, 30, one for each lever, which slides arc located adjacent the lower ends 'of the stems of the supply and exhaust valves 6, 8. These slides are supported and guided in their movements by means of brackets 31 located adjacent the upper end of the connecting rod 5,' the slides being thus carried by the connecting rod and partaking of the movements thereof. The slidesv aren provided each with a hole 32; and the relative arrangement of the parts is such that if the slide be moved toward the lower end of the stem of one of the valves, for example toward the stem 7 of the supply valve, when the positionof the slide is such that its holeis in line with the valve stem, the lower end of the stem will enter the hole and the valve will not be lifted from its seat. This position of the parts is shown, having reference to the supply valve, in Fig. 14; while Fig. 13 shows the slide in such a position that the hole 32 will not be in line with the valve stem, in which case an imperforate or solid portion of theslide engages the lower end of the valve stem and the valve will be raised from its seat upon a continued movement of the slide.

The movement of the slides 29, 30 upward. toward and downwardand away from the lower. end ofthe valve stem is due to a rocking motion of the upper end of the connecting rod 5 upon the wrist pin 34 which occurs as the engine operates and which moves lower' end-*of thevalve stem', 'as will be understood; and the magnitude of this upward movement will depend upon the throw 'of'crank and the distance between the center rline or axis of 'the wrist pin 34 and center line of the valve stem, or, in case the slide Imoves in a line parallel with ,the center line of the wrist pin as in the embodiment of my device illustrated, then upon the distance between the center line or axis of the wrist pin and the line of movement of the slide: it being understood that the slide is located to one side of, or is oit-set from a line passing through the center linesI of the wrist pin 34 and the crank pin 24, whereby the 115 connecting rod 5 as it swings from side to side acts as a lever having its fulcrum at lthe wrist pin throughl which the valve is` lifted from its seat.

The reciprocatory movement of the slides 29, 30 is derived from the cam 16 and is trans mitted to them through the levers 12, 14.

Considering the operating mechanism for the supply valve 6, it will be seen that when the shoe 20 of the lever 12 is moving in 125 the left-hand loop 17 of the race of the cam 16 as shown in Fig. 1 the slide 29 will be in its inner or right-hand position as illusmoved toward the lower end of the valve stem 7, an imperforate portion thereof will contact with the end of the valve stem and the valve will be lifted. When, however, the shoe 2O is moving in the right-hand loop 18 of the race of the cam 16 the slide will be in its outer or left-hand position as illustrated in Fig. 14; and, if while the parts remain in this second position the slide be moved toward the lower end of the valve stem, the hole 32 thereof will permit the slide to pass the end of the valve stem with-v out the slide engaging the same, and the valve will not be lifted. The same explanation applies to the mechanism 4for operating the exhaust valve 8, it being understood that the only difference between the supply and exhaust valve operating mechanism is that the lever 14 of the exhaust valve mechanism is extended to the lower side of the cam 16 as above explained. Figs. 13 and 14 while used to illustrate the operation of the supply valve are therefore equally available when referring to the exhaust valve.

A combustible mixture is supplied to the working cylinder of the engine through a supply port ,35; 36 is a preliminary exhaust port through which a part of the burned gases escape at the end of the working stroke as the piston overruns said port; and 37 is an exhaust port through which such portion of the burned gases as passes through the exhaustvalve 8 during the exhaust stroke of the working piston 4 escapes to the atmosf phere.

38 is an outwardly opening spring-pressed valve which permits the exhaust gases to pass outward, but which prevents their return into the working cylinder.

ln order to provide for the passage of the combustible mixture from the supply port Vto the supply valve 6, and for the\ passage of exhaust gases from the exhaust valve '8 to the exhaust port 37, the working piston 4 is provided with recesses 39, 40 extending through the greater part of the length of the said piston and each extending circumferentially throughout somewhat more than onefourth lthe circumference of the' piston in the'form thereof illustrated, as shown in Figs. 2 and 11. These .recesses are separated from one another by intervening portions of the periphery of the working piston cooperating with the cylinder wall, but said recess 39 will always be in communication" with the supply port 35 so that combustible gases may at all times pass to the supply valve 6, and the recess 40 will always communicate with the exhaust port 37 so that burned and expanded gases flowing past the exhaust valve 8 may at all times pass to thel said exhaust port. These recesses are enlarged adjacentthe upper end of the working piston so that they together occupy substantially the entire cross-sectional area of the piston, as shown in Fig. 12', a partition 41, however, serving to keep the fresh and the burned gases apart at this point.

Such being the construction of my improved Iinternal combustion engine, the operation thereof is as follows: Starting with the parts in the osition shown in Figs. -1 and 2, and assumlng the engine to rotate in a clock-wise direction, theshoe 2O of the lever 12 is moving in the left-hand loop 17 of the race of the cam 16 and the slide 29 is in its right-hand position shown in Fig. 13 with a solid or imperforate portion thereof in line with the end of the valve stem. A comparatively small forward movement of the crank-shaft as the piston starts upon its suction stroke will rock the connecting rod upon the wrist pin 34 sufficient to move the slide 29 upward thus opening the supply valve 6, the slide 29 remaining, as will be understood, in the positionk shown in Figs. 1 and 13 during the ent-ire suction stroke. The supply valve will thus be open during a large part of the suction stroke. the precise duration obviously being dependent` upon the relative proportion and adjustment of the parts. At about the middle of the suction stroke of the piston the several parts occupy positions as illustrated in Fig. 3, in full lines, and the parts finally at the end of the suction stroke occupy the positions shown in dotted lines, Fig. 3, thus completing the first or suction stroke of a four-stroke cycle of operation. When the working piston starts from its lowest position shown in dotted lines Fig. 3 the shoe 21 of the exhaust valve lever 14 is moving in the right-hand groove 18 of the race of the cam 16 so that the slide.30 is in its left-hand position corresponding with Fig. 14 with the hole 32 of the slide in line with the end of the valve stem. Consequently, although the slide 30 is moved toward the stem of the exhaust valve 8 as the connecting rod swings to the left, the said valve will not be raised from its seat, as the stem of the valve will enter the hole 32 of the slide 30 in a way corresponding with what -is shown iu Fig. 14. Both valves therefore remain closed and compression takes place as the piston moves upward, during which movement and at about the middle of the stroke the parts occupy the position shown in full lines in Fig. 4, and `finally reach the position shown in dotted lines in vthat figure, thus completing the second or compression stroke of a fourstroke cycle of operation. The combustible mixture is now ignited, as by the spark plug 42, and burned.

Then the piston starts down upon its..

working stroke from the position shown in dotted lines in Fig. 4 the shoe 2() of the supply valve lever 12 will be moving in the right-hand loop 18 of the race of the cam 16, and the slide 29 will be in its left-hand 'i cam 16 and the slideBO is therefore in its right-hand position corresponding to the poi' position, as 'shown in Fig. 14 with thel hole 32 of the slide in line with the end of the 'valve stem so that though the slide 29 will Ube'moved toward the valve stem as on the first down stroke of the piston the supply valve will not be lifted, as the hole of the slide 29 will pass by the lower end of the valve stem as shown in Fig. 14. The parts at about the middle of the working stroke occupy a position substantially as shown in y full lines Fig. 5, and finally reach the position shown in dotted lines at the end of the working stroke, thus completing the third or working stroke of a four-stroke cycle of operation.

When the working piston starts upward it' upon its exhaust stroke from the lower dotted line position shown yin Fig. 5 the shoe 2l of the exhaust valve lever 14 is traveling in the left-handloop 17 of the race of the sit'ion shown in Fig. 13 with a solid or imperforate portion thereof in line with the Ivvend of the valve stem so that as the slide is raised as the connecting rod 5 swings to the left an impeijfforate or solid part of the slide contacts with .the end of the stem of the exhaust valve 8 and lifts the same from its seat. rIhe exhaust'valve is opened early. in the exhaust stroke and kept open during substantially the ent-ire exhaust stroke, the exact 'time of opening and theduration thereof depending upon the-relative proportion and adjustment of the parts, and, at about the "middle of the exhaust stroke the parts cccupy ,substantiallyvv the positions shownfin` Fig. 6,' and finally at the end of the exhaust "stroke arrive at the position shown in dot-A ted lines in-said figure and` wh1ch positionl rof v'parts directly to the valves.

fried by the connecting rod 5 are located to one side of a line passing through the center linesvof the wrist pin 34 and crank pin -24 so that the connecting rod as it swings about the'wrist pin 34 acts as a lever whose .fulcrun'i is at thevwri'st pin to lift the valves y'froni'their seats.

y A valve lifting mechanism of great power is thereby procured, in..- cluding as it does the-strongest' of the operating parts of the engine, from which part-s motion is transmitted through a minimum The mechanisml disclosed for moving the slides performs its function, as will be understood, at the ends of the down strokes of the piston, and the duty imposed upon said mechanism is slight, comprising as it does the mere placing of the slidesin position to engage or pass the valve stem, no force being transmitted from the cam 16 through the levers 12, 14 to the valves.

The fact that the entire o ,erating mechanism for both the supply an exhaust valves is contained within the cylinder and crank case of the engine provides an engine having no exposed moving parts except the balance or drive wheel, and an engine therefore not likely to become disabled when in use.

Havin thus described my invention and explainec the operation thereof, I claim and desire tosecure by Letters Patent:

1. In a four-stroke cycle internal combustion engine, a cylinder; a piston; a reciprocating valve carried lby said piston and adapted to A control the flow of fluid therethrough and having a depending stem; a passage communicating with said valve an through which Huid may flow; a crank shaft; a connecting rod extending between the crank pin of said crank shaft and said piston and connected therewith by means of a wrist pin; a member carried by said connecting rod and located to one side of a line passing through the center lines of the crank and wrist pin so that it will be moved toward and from said valve stem as the connecting rod swings about said wrist pin, and movable with reference to said connecting rod into positions such that it may alternately engage and pass the end of said valve stem; a doubleloop cam concentric with the crank pin aforesaid; and means carried by said connecting rod and operated by said cam for moving said valve stem engaging member alternately into and out of line with said valve stem.

2. In a four-stroke cycle internal combustion engine, a cylinder;v a piston; a reciprocating valve carried by said piston and adapted to control the flow of fluid therethrough and having a depending stem; a passage communicating with said valve and through which fluid may flow; a crank shaft; a connecting rod extending between the crank pin of said crankshaft and said piston and connected therewith by means of a wrist pin; a reciprocatingslide carried by said connecting rod and located to one side of a line passing through the center lines of the crank and wrist pin Sothat it will be moved toward and from said valve stem as the connecting rod swingsabout said wrist pin, and movable with reference to said connecting rod into positions suoli that it may alternately engage and pass the'end of said valve stem; a double-loop cam concentric with the crank .pin aforesaid; and means carried by said connecting rod and operated by said cam for moving ,saidv reciprocating 4slide alternately into and out of line with said valve stem.

3. In a four-stroke kcycle internal combustion engine, a cylinder, a piston; a reciprocating valve carried by said piston and adapted to control the flow of fluid therethrough and havinga depending-stem; a passage communicating withsaid valve and through which fluid may flow; a crank shaft; a connectin'g'rod extending between the crank pin of said crank shaft and said piston and connected therewith by means of a wrist pin; a reciprocating slide carried by said connecting rod and located to one side of a line passing through the center lines of the crank and Wrist pin so that it will be moved toward and from said valve stem as may engage the end lof sai valves; and means carried b the connecting rod swings about said wrist pin, and having a hole so that it may move 'past ,the valve stem without lifting said valve, said slide being movable with reference to said connecting rod into positions such that lan imperforate ortion thereof valve stem or the valve stem may enter the hole aforesaid; a double-loop 4cam concentric with the crank 4pin aforesaid; and means carried by said connecting rod and' operated b said cam for moving said reciprocating sli e so as to alternately bring an imperforate portion thereof and the hole thereof in line. withl said valve stem.

4.In a four-stroke cycle internal combustion engine, a cylinder; a pist-on; a supply land an exhaustl valve carried by said piston:

a supply port extending through the wall of said cylinder; a passage formed in said piston and leading to said supply valve, and inpermanent communication with said supply port; an vexhaust ort extending through the wall' of said cyllnder; a second passage formed in said piston and-leading to said exhaust valve', and in permanent communication with said exhaust port; a crank shaft; a connecting rod connecting the crank pin of said crank shaft and said piston; means carried by saidconnecting rod for operating said supply and exhaust said crank shaft for controlling said va ve operating means to secure a four-stroke cycle of opera-- tion of the engine.

5, In a four-stroke cycle internal combustionl engine, a cylinder; va piston; a lsupply and an exhaust valve carried by said piston; a supply port extending through the wall of .psa-id cylinder; a passage formed in said piston' and leading'to said supply valve, and in permanent communication with said sup.-

A ply port; an exhaust port extending through the Wall of's'aid cylinder; a second passage formed in said piston and leading to said exhaustvalve, and in permanent communication with said exhaust port; a crank shaft; a connecting rod connectin the crank pin of .said crank shaft and sai piston; means carried by said connecting rod for operatingsaid suppl and exhaust valves; means connecting rod for controlliiig'vsaid valve, operating means and means i' carried by l.said -crank shaft for operating y 4said controlling means to secure a fourstroke cycle of operation of' the engine.

6. In a four-stroke cycle internal combustion engine, a cylinder; a piston; a reciprocating valve carried by said piston and adapted to control the flow of fluid therethrough and having a depending stem; a passage communicating with said valve and through which fluid may How; a crank shaft; a connecting rod extending between the crank pin of said crank shaft and said piston and connected therewith by means of a wrist pin; a member carried by said connecting rod and located to one side of a line passing through the center lines of the 'crank and wrist pin so that it will be moved toward and from said valve stem as the connecting rod swings about said wrist pin, and movable with reference to said connecting rod into positions such that it may alternately engage and pass the'end of said valve stem; a double-loop cam concentric with the crank pin aforesaid; a lever carried by said connecting rod and pivotally connectedvtherewith, and the upper end of 7. In a four-stroke cycle internal combustion engine, a cylinder; a piston; a reciprocating valve carried by sald piston and adapted Vto control the flow of uid therethrough and having a depending stem; a passage communicatlng with said valve and through which Huid may flow; a crank shaft; a connect-ingl rod extendingbetwecn the crank pin of said crank shaft and said *piston and connected therewith by' means of a wrist pin; a. member carried said connecting rod and located to one side of a line passing through the center lines of the crank and wrist pin so that it will bel moved toward and from said valve stem as the connectin rod swings about said wrist pin, and mova le with reference to said connecting rod into positionssuch that it may alternately engage and pass the end of said valve stem; a double-loop cam concentric with the crank pin aforesaid; and means whereby said lever is operated by said cam to thereby move said valve stem engaging which is operatively connected with said member alternately into and out of line l through which fluid may flow; a crank shaft; a connecting'l rod extending between the crank pin of said crank shaft and said piston and connected therewith by means i of a wrist pin; a. reciprocating slide carried by said connecting rod and located to one Side of a line passing through thev center lines of the crank and wrist pin so that it will be moved toward and from said valve stein as the connecting rod swings about said wrist pin, and movable with reference to said connecting rod into positions such that it may alternately engage and pass the end ofsaid valve stem; a double-loop cam concentric with the crank pin aforesaid; a lever carried by said connecting rod and pivotally 4connected `therewith, and the upper end of which is operatively connected with said reciprocating slide; and .a shoe upon thel l-ower end of said lever and adapted to-move in the race of -said cam to thereby move said reciprocating slide alternately intoand out of line with said valve stein.

9. In a four-stroke cycle internal combustion engine, a cylinder; a piston; a reciprocating valve carried by said' piston and adapted to control the ow of fluid therethrough and'having a depending stem; .a

. assafre communicatin with said valve and through which fluid may flow; a crank shaft; a connecting rod extending between the crank pin of said crank shaft and said piston and connected therewith by means of a wrist pin; aA reciprocating slide carried by said connecting rod and located to one v side of a line passing through the center lines ofthe crank and wrist pin so that it` will bemoved toward and from said valve.

stem as the connecting rod swings abo-ut said wrist pin, and having a hole so that yit may move past the valve stem without lifting said valve, said slide being movable with reference to said connecting rod intopositions such that an imperforate portion thereof may-engage the end of said valve stem orthe valve stein may enter the hole aforesaid;l a double-loop cam concentric 'with the crank pin aforesaid; a lever carried by said connecting rod, and pivotally con-` jnected therewith, and the upper` .end vof which is operatively connected with said reciprocating slide; and a shoe upon the I' lower endiof said lever and adapted to move in the race ofsaid cam to thereby move said reciprocating slide-s0 as to alternately bring an imperforate portion thereof and thehole vthereof in line with said valve stem.

10. In a four-stroke cycle internal coinbustion engine, a cylinder; a'piston; a reciprocating ,valve carried byv said piston and adapted to control the flow of fluid therethrough and having a VEdepending stein; a

port extending lthrough the wall of saidl cylinder;l a passage formed in said piston and leading to said valve, and in permanent communication with said port; a crank shaft; a connecting'rod connecting the crank i pin of said crank shaft and saidv piston; a

vmember carried by said connecting rod and located to one side of the centerline thereof so that it will be moved toward andfi'om said valve stein as the connecting rodrswings about its connection with the piston, and movable with reference to said connecting rod into positions such that it may alternately engage and pass the end of said valve stem; a double loop cam concentric with the crank pin aforesaid; and means carried by said connecting rod and operated by said cam for moving said valve stem engaging member alternately into and out of` line with said valve stem. i v

11. In a fourstroke cycle internal combustion engine, a cylinder; aipiston; a reciprocating valve carried by said pistonL and .adapted to control the flow of fluid therethrough and having a depending stem; a port extendingl through the wall. of Asaid cylinder; a passage formed in said piston and leading to said valve, and in permanent communication with said port; a crank shaft; a connecting rod connecting the crank pinof said crank shaft and said piston; means carried by said connecting rod for operating said valve; and means carried by said crank shaft for controlling said valve operating means to secure a four-stroke cycle of operationv of the engine. A I

12. In a four-stroke cycle internal combustion engine, a cylinder; alpiston.; a reciprocatino' valve carried `*by said piston and ada-pte to control the flow of fluid therethrough andgliaving a depending stein; a

'port extending through the wall ofSaidcyliiider; a passage formed in said piston and leading to said valve, and in permanent coinmunication with said port; a crank shaft; a connecting rod connecting the crgnk pin,-of

said crank shaft and said piston; means carried by said connecting rod for operating said val-ve, means carried by said connecting rod for controlling said valve operating means; and means carried `by said crank shaft for operating said controlling means to secure a four-stroke cycle of, operation of the engine. j

13. In a four-stroke cycle internal combustion engine, a cylinder; a piston; a reciprocating valve carried by said` piston` `and adapted. to control the flow of .flu-id there'-A through and having a dependin stem; a port extending through the walofsaid cylinder; a passage formed in said piston and leading to said valve, and in permanent communication withV said port ;=a crank shaft; a connecting i'od connecting the crank pin of said crank shaft and said piston; a reciprocating slide carried by said connecting rod and l located to one side of the centerY line thereof so that it will be moved toward and from said valve stem as the connecting rod` swings about itsconnection with said piston, and movable with reference to said connecting rod into positions such that it may ,alternately engage an'd pass the end of saidvalve stem; a double-loop cam concentric with the crank pin aforesaid; and means carried by said connecting rod and operated by said cani for moving said reciprocating slide alternately into and out of line with said valve stem.

14.-In a four-stroke cycle interiialcombustion engine, a cylinder; a piston; a reciprocating valve carried by said piston and adapted vto control the flow of fluid therethrough and having a depending stem; a port extending through the wall of said cylinder; a passage formed in said piston and leading to said valve, and in permanent communication with said port; a crank shaft; a connecting rod connecting the crank pin of said crank shaft and said piston; areciprocatin slide carried by said connecting rod and ocated to one side of the center line thereof so that it will be moved toward and from said valve stem as. the connecting rod swings about its connection with said piston, and movable with reference to said connecting rod into positions such that it may alternately engage and pass the end of said valve stem; a double-loop cam concentric with the crank pin aforesaid; a lever carried by said connectin rod and pivotally connected therewith, an the upper end of which is operatively connected with said reciprocating slide; and a shoe upon the lower endof said lever and adapted to move in the race of said cam.

15. In a four-stroke cycle internal coinbustion engine, a cylinder; a piston; a reciprocating valve carried by said piston and adapted toy control the flow of fluid therethrough and having al depending stein; a port extending through the Wall of said cylinder; a passage formed lin said piston and leading to said valve, and in permanent communication with said port; a crank shaft; a connecting rod connectingA the crank pin of said crank shaft and said piston; a member 4carried bysaid connecting rod and located to one side of the center line thereof so that it will be moved toward and from said valve stein vas the connecting rod swings about its connection with the' piston, and movable with reference to said connecting rod into positions' such that it may alter- V nately engage and pass the end of said valvev stem; a double-loop cam concentric with the. crank pin aforesaid; a lever carried by said connectingl rod and pivotally connected therewith, and the iipperend of which is operatively connected with said valve stem eiigagingmeniber; and al shoe upon the lower end of said lever and adapted to move in the race of said cam.

16. In 'a four-stroke cycle internal combiistion engine, a'eylinder; a piston; a reciprocating valve carried by vsaid piston and 5 adapted to controlthe flow of fluid there'- -Lbv'ougb and having a depending stem; a.

port extending through `thewall oflsaid cylinder; a passage formed in said piston and leading to saidvalve, and 1n. permanent communication with said port; a crank A shaft; a connecting rod connectin "the crank pin of said crank shaft 'and.,sai piston; a reciprocating slide carried byjSjid connecting rod and located to one side of the center line thereof so that it will be moved toward and from ysaid valve stem as the connecting rod swings about its connection with the piston, and having a hole so that it may move past the valve stein without lifting said valve, said slide being movable with reference to said connecting rod into positions such that an imperforate portion thereof may engage the end of said valve stem or the valve stem may enter the hole aforesaid;

a double-loop cam concentric with the crank pin aforesaid; and means carried by said" connecting rod and operated by saidv cam for moving said reciprocating slide so as to alternately bring an imperforate portion thereof and the hole thereof in line with said valve stein.

17. In a four-stroke cycle internal ycombustion engine, a cylinder; a piston; a reciprocating valve carried by saidpiston and adapted to control the llow of uid therethrough and having a depending stem; a

port extending through the wall of said cylv rod: swings about vits connection with the piston, and having a hole so that it ,may

move past the valve stem without liftingv 4said valve, said slide being movable with reference to said connecting rodinto positions. such that an' imperforate portion thereof may engage the yend of said valve stein or the valve stem4 may enter the hole aforesaid; a double-loop cam concentric with f the crank pin aforesaid; a lever carried by P15 said connecting rod and pivotally connected therewith, and the upperl end of which is operatively connected `with said reciprocatj ing slide; anda shoe upon the lower end 'of said-'lever4 and adapted to move in the race of said cam to thereby move said reciprocating slide so as to alternately bring4 an imperforate portionthereof and the hole-f' thereof in line with-said valve stem.

18. In an internal combustion engine, a cylinder; a piston; a val-ve carried by said piston and adapted to `control the flow of uid therethrough; a port extending through the wall ofl saidcylinder; a passage formed in 'said Apiston and leading to said and from said valve stem as the connecting U5 I valve and in permanent communication with' said port; a crank shaft; a connecting-rod connecting the'crank pin of said crank shaft and said piston; means carried by vsald connecting rod for operating said valve; means .carried by said connecting rod for controlling the action of said valve operating means upon said valve; and means carried by said crank shaft for operating said controlling 19. In an internal combustion engine, a.

cylinder; a pistonga valve carried by said .l iston and adapted to control the How' ofy uid therethrough; a port extending through the Wall of said cylinder; la passage formedr in-said piston and leading to said valve and in'permanent communication-With said port;

' 'a crankshaft; a connecting rod connecting if 20. In an i` y cylinder; a piston; a valve carried by said iston and adapted to control the flow of 'fsu trolling s means.

the crank 'pin of said crank shafteand. said piston; means carried by said l'connecting by. said crank shaft for operating said conterrial combustion engine, a

uid therethrough; la port extending through the Wall of said cylinder; a passageformed in ,said piston andleading to said valve and in permanent communication with said port; v v

upon said valve; and meanscarried by said a crank shaft; a connectingrod connectin the crank pin of said crank shaft andy sai piston.; avalve operating members-carried by 'said connecting rod and located to one `'side of thel center line thereof so as to i ofan up and down movement ast e said rod swings about its connection With said piston; aconnection through which motion of vsaid valve operatingmember isv transmitted to said valve; means carried by'said connecting rod for controlling the action .of said valvefoperating member .upon said valve; and means 'carried by said crank shaft for operating said controlling means.

carried by said trol'the flow of Huid therethrough; a'passage' 2l. In a vfour-stroke cycle internal combustion engine a cylinder; a piston; a valve piston and adapted to convalve; a crank shaft; a connecting rod connecting the-crank pin of said crank shaft 5 and said piston; a valve operating member carried bysaid connecting rod an adapted. vto open said valve upon alternate up strokes of the said piston; means carried by saidj connecting rod for controlling the action of said valve operating member rvupon saidl valve; and means carried by said crank lshaft for operating -said4 controlling means tothereby secure theoperation of said valve 'perating' member upon said valve -as'afore-` said.l upon '-,alt'ernate' u strokes, of the piston.

artake wenn' bustion engine, a cylinder; 'a piston;"a valve vcarried by said piston and adapted to control the flow of fluid therethrough; a pas-4 sage formed in said piston and leading to said valve; a crank shaft; a connecting rod vconnecting the crank pin of said crank shaft and said piston; a valve operatin member carried bysaid connectin rod an adapted to open said valve upon a ternate up strokes of the said piston; a lever pivotally connected with said connecting rod andthe upper end ofxvvhich is operatively connected with said valve operating member; a doubleloop cannconcentric with the crank pin of said crank shaft: and a shoe upon .the lower the race of said cam.

-end of said lever and ladaptedvto travel in 23. In a four-stroke cycle internal coni- I bustion engine, a cylinder; a iston; an valve carried by said piston and va apted to control 'the flowlof fluid therethrou h; a Vorty extending through 'thewall of sai cylin er tion'.with 'said" por t: a'fcrank shaft; a connecting rod connectiigfle 'crank pin of. said Acrankshaft and said piston; afv'alve operating member carried by `said 'connecting "rod and adapted to opensaidvalve upon altern ate up strokes of 'said piston; means carried by. said connecting rod forccntrolling the action of said valve operating member a passage formed in said piston and leading p to said valve and in permanent communica crank shaft for operating said controlling means to`thereby secure the operation of said' v'alve operating member upon said valve as aforesaidfupon alternate upstrokes of the piston. 'j y 24.' In a four-stroke cycle interna combustion engine, a cylinder; a piston; l'avalve carriedby said piston and adapted.l?e 'o-"con v trol the iow of fluid,therethroughgi'a'port extending through the wallof said cylinder;

' a passage formed in said piston and leading to saidvalve andin permanent communicavthe u per end of which is operatively conuecte. with saidfvalve operating member; a

double-loop 'cani vconcentric with the crank in' of said crank shaft; and a shoe upon the ovver end of 'said lever and adapted to travel in the 'raceof said cam. 25. In a vfour-stroke cycle internal combustion engine, acylinder; a piston; a valve carried by said piston and -adapted tocontrol the flow of iuid therethro'u h; a pasiio tion with said port; acrank shaft; a. con-' sage formed in said lpiston andl eadin'gto 'said valve; a crank shaft;.a connecting rod' ythrough which mot1on of" said piston istransmitted to said crank shaft; `a Valve Signed at New York, borough of Man' operating member Fartaking of the recprohattan, in the county of New York and 10 eating movement o said piston and adapted State of New York, this 18th day of May,

to` operate said valve upon alternate strokes A. D. 1910.

5 of said piston; a double-loop cam carried by said crank shaft; and means through which Witnesses: motion derived from said double-loop cam is A. V. WALSH, transmitted to said valve operating member. H. M. WHITE.

ADOLPH PETELER..

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