US1414307A - Internal-combustion engine - Google Patents

Description

1.1. SCHILLER. -INTERNAL COMBUSI'ION ENGINEa APPLICATION FILED MAR. I0 1920- Patented pf. 25, 1922,

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In... 'Hun 1.1. SCHILLER.

. INTERNAL coIvIBusIIoN ENGINE.

APPLICATION E|LED MNR. 10,1920.

A1. J. SCHILLER. INTERNAL COMBUSTION ENGjNE.

APPLICATION-FILED MAH; 1'0. 1920i' Patentedv Apr, 25, 1922.

3 SHEETS-SHET-li. I

.cylinders 12 and a Water-jacket '13 A the cylinder and combustion.-cl1amber. The

JOEE' 3. SCHLLER, 0F KCG, LLIINOIS.

' E'TERNAL-CDMB'USTIN ENGNE.

Application led March 10, 1920; Serial 323e. 364.7432.

To al?. fwL-omfit may concern.:

lle it known that I, JOHN' J, klemmen, a citizen of the United States, and a resident of Chicago, in the county` of Cook and State of Illinois, have invented certain new and useful Improvements in InternahCombustion Engines, of which the following is a` line 3-3 of Fig. 2. Fig. 4 is a detail or. one

of the removable cylinder-linings Fig. 5 is a perspective of one or the valves.

Theengine comprises a crank-shaft 6, a crank-case 7 provided with bearings 8 for the crank-shaft, a body 9, usually a casting, secured to the crankcase by bolts 10 and containing the combustion-chambers 1l,

invention is illustrated as applied to a four cylinder engine of the iour cycle type, but it will be understood that it isapplieable t0 any multi or single cylinder motor and that a description of the invention, as applied to one cylinder. will be sufficient. The engine body is provided with an inlet-port 14 for conducting combustible-fuel vinto the combustion-chamber 1l and an exhaust-port 15 for the escape of the products of combustion from said chamber. Ignition-means is eX- emplified by a spark-plug: 16 of usual construction. A water-inlet 17 to the waterjacket is connected to one side of the body 9 andan outlet-pipe 18 is secured to the top of said body. The cylinder 12 and walls ofi the combustion chamber and water jacket are integral. A cylindrical liner i9 forms the working-surface for the slidable piston 20. Said piston is connected by a pitman 21 to a crank on the-shaft (i in usual man ner. The liner 19 is provided witha screwthread` 2Q for engaging a corresponding; thread in the. cylindricaljwall 12 of the body 9. The body is shouldered, as at 23,

around to form a seat 'for packingA 24 which is interposed between the upper end of the liner and the shoulder to form a {luid-tight connection. An advantage in providing the cylinder with a' liner 19 is that the liner re ceives the Wear and AWhenit becomes defective, for example, if it becomes scored, it can be unscrewed from the body and repaired or easily replaced.

The improved fluidcontrollingl mecha nism comprises inlet and outlet valves subst'antially the saine in construction. Each consist of two cooperating' members 25 and 2G both of which are slidable relatively to the body and relatively to each other. A. guide-way 27 is formed in the casing for each vulve and intersects the port which the valve is designed to control. The outer member Q6 is substantially rectangular and ts and slidesy longitudinally in the guideN Way 27. The inner member 25 is slidable in the opening 28 which is formed in member- 26 in which it is'held by tongue-and-groovc connections 29 between the sides of the members respectively. Both members of `the valve are adapted to Work in the port to be controlled thereby so that the opening and closing or' the port will bedependent upon the movement of both members. A `groove 30 is formed in thel inner edge of the top of the member 26 and a rib 81 on the end of member 25 is adapted to enter said groove.v

This tongue-and-,frroove form a lapping con-- nection between the memberswhich permits relative movement of the members While the port controlled by the valve remains closed.

The outer valve member 26 is operated by a pitman 32 pivoted to a lug 33 on said ineinber and an eccentric 34 on a shaft 35.1, Member 25 is operated` by pitman 36 pivoted, at 37, 'to said member and an eccentric 38 on shaft The latter is operated from crankshaft 6 and in. suitably timed relation with respect to the piston by a pinion 39 on the crank-shaft and meshingr with a geari() on the valve-opcratin`;r shaft The inlet valve is generally indicated by the numeral 41 and the exhaust-valve is generally designated 4Q. There is a valvesluitt 35 at each side of the @sank-casing:l and these shafts are similarly driven and similarly connected to the valves operated thereby.

lllfliile the engine is running, the sli-aft 435 will be, continuously driven and the oppovsitely disposed eccentrica 2li and 38 on the yalvebperating shafts will operate 'the meinbersor each valve relatively to one another. Assumingr the engine to be at the commence.- ment oi' an intake-Stoke, the exhaust and inlet valves will be dosed, as shown in Fig. 2. The occ-,entries 34 and 88 will ythen move the outer valve-member 2G upwardly and the inner member 25 oic the inlet valve do\vn wardly, and ythe. port 14 will open for the :ulmission ot combustible fluid during` the intake-stroke andy until the valveemembers are again lapped at the end ol said stroke. During the v"intake stroke` the members of inlet valve 4l will both continue to'move in opposite directions and open and close the admission port 14., Duringn the succeeding,r compression and power strokes, the inlet and exhaust valves will both 'be closed. During the succeeding scavening stroke, the

- exhaust-valve will open and close.

'lhe invention exemplifies an improved valve consisting' of simultaneously an'd relatively movable members which make it possible to provide eliicient openings tor the passage of fluid as the result of a comparatively short stroke, so thatv the valve-menibers may move at eomparativel)v slow speed; and so that the),r may be operated b v eccentrics, if desired; also an improved engine in which provision is made for replacinY thel operative portion of the cylinders.

The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the tively,

groove connect-ions between the sides ofthe miese? and integral tongues formed to intertit, and e mechanism for simultaneously shifting both of said members in opposite directions to open and close the port.

2. In an internal combustion engine, the combination of a cylinder, a. casing' having a port therein, of a valve comprising a pair of relatively slidable 4plates ol' substantially the, same thickness, the easing having a slideway therein exteinli'ngy transversely of the port, both sides of both plates being 'formed to engage the sides of the sliflewajvvrespeo interlittinig` integral tongue and plates, so that one will slide inthe other, and mechanism tor simultaneously shitting both of the plates in opposite directions to open and elose the ort.

y i @HN il. SCHXSJLER.

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