US879512A - Internal-combustion engine. - Google Patents

Description

No. 879,512. PATENTED FEB. 18, 1908. J. BRAUNWALDER.

INTERNAL OOMBUSTION ENGINE. APPLICATION FILED 1111116.19013.

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UNITED sTATEs PATENT oEEIcE;

JOHN BRAUNWALDER, OF CHICAGO, ILLINOIS.

IN TERNAL-COMBUSTION ENGINE T o all whom it may concern.'

Be it known that I, JOHN BRAUNWALDER, a citizen of the United States, residing at lhicago, county of (look, and State of Illinois, have invented certain new and useful Improvements in an Internal-Combustion a simple, convenient, economical, and com-I pact device of the kind described and one which may if desired be made to run in either direction.

To this end my invention consists in the novel construction, arrangement, and com-` bination of parts herein shown and described, and more particularly pointed out in the claims.

In the accompanyingr drawings wherein ylike or similar reference characters indicate like or corresponding parts; Figure 1 a section taken substantially on line 1-1 of Fig. 2. Fig. 2 is a section taken .substantially on line 2---2 of Fig. .1. Fig. 3 is a detail of a simple arrangement of inlet and ex- .haust pipes with valves for controlling the direction; and Fig. .4 is a partial section taken substantially on line 4 4 of Fig. 2.

In the preferred form of my devicel shown in the drawings, a shaft l is rotatably mounted in bearings in the heads 2 and'S and provided near its central portion with a rojecting flange 4 rigidly. attached to the s aft and carrying a concentric ring 5 at its periphery.

A plurality of pistons or plungers 6 are rigidly mounted upon the ring 5 each projecting radially from its exterior and provided with a central longitudinal opening 7 extending entirely through the plunger to the interior surface of the ring 5 which is preferably accurately finished to provide a smooth continuous bearing surface especially immediately adjacent theends of the openings 7. i

A plain cup shaped cylinder 8 is provided for each plunger 6 each .cylinder being adapted to inelose the end of a plunger an@ slide longitudinally thereon. Any suitable means -ma be provided to revent, leakage between t e walls of the p ungers and the Specification of Letters Patent.

Application filed May 16. 190s. serai No. 317,046'.

Patented Feb. 18, 1908.

cylinders. In the form shown the exterior of each plunger is accurately inished, and fitted to the finished interior of the cylinders 6, depending merely upon the accuracy of the fit to prevent leakage. When so fitted each plunger also serves as a convenient radial guide and driver to control the position and movement of a cylinder.

Any suitable means" may be provided to control the position of the piston 8 upon the plungers 6.

1n the form shown the heads or side plates 2 and 3 are rigidly connected and spaced from each by a sliell 9 which serves merely as a distance piece to control the relative positions of the heads, and also in the forms` shown is provided with a suitable base or feet 9 for mounting my motor upon a foundation.

As shown the head 2 is merely a substantially flat elliptical plate provided with a suitable bearing for the shaft 1 at its central portion, and upon its inner face near its periphery having a suitably formed track or groove 1() the radialdistance between said track and the shaft at various points corresponding to the desired positions of the cylinders 8 upon the lungers.

The heaclJ 3 is preferably formed of the same generaloutline as the head 2 and provided 1n the same manner with a bearing for the shaft 1 and. the groove 10 near its periphery; both heads being preferably formed exactly alike except that the-head 3 is provided with a cylindrical projection 12 accurately fitted to the interior of the ring 5, and also provided with any desired number of recesses or depressions 14 positioned to periodically communicate with the openings 7 in the plungers 6 as the shaft 1 is rotated. l Any suitable means may be provided upon the cylinders 8 to engage the grooves 10 upon the heads 4. As shown a pair of suitable wheels or rollers 15 are provided upon each cylinder at its opposite sides each wheel adapted to snugly fit a groove 10 in the heads 2 and 3 respectively.A The heads 2 and 3 thus serving as portions of the main frameof my device and also as stationary cams 1n which the groove 10 may be formed of any desired shape to produce the desired movements of the cylinders.

In thel form shown in Figs. 1 and 2 the grooves are substantially elliptical thus causing each' cylinder to make two complete strokesv upon its plunger in each revolution,

trolling the admission'and discharge of the motive fluid to and from the cylinders or for any other purpose desired.'

In Figs. 1 and 3 in which a reversible explosive enginc'is shown, thcrecesses 14 and 14 are employed either for admission or exhaust ports depending upon the direction of motion of the engine and the recess 14 is employed as an ignition port.

Any suitable means may be employed to connect the depressions 14 and 14 with a suitable supply or motive fluid or with the atmosphere as desired. As shown a suitable valve 16 is provided connected by means of suitablcs pipes 17 and 18 to the depressions 14 and 14 respectively.

A pipe 19 connects the valve 16 to a suitable supply of fiuid for driving the motorand a pipe 20 is provided to conduct away the exhaust. The valve 16'is merely a common four way cock or other suitable device whereby the pipe 19 may be connected either to the pipe 17 or 18 as desired while the pipe 20 is simultaneously connected to the other.

In Fig. 4 a simple form oligniter is shown lwhich may be4 employed with my device if desired in which a cam 21 is rigidly attached to the shaft 1 and a spring actuated circuit breaker is so positioned that as the shaft l rotates an electric circuit from a battery 22 or other source of elcctrievenergy is successively completed and broken, each break occurring while an opening 7 is in communication with the recess 14 thus successively igniting the explosive charge in each cylinder.

In the form shown in Figs.v 1 and 2, suppose the shaft is rotating to the left, as each opening 7 passes the recess 14 the charge in the cylinder' 8 is ignited and expands While the cylinder travels outward until lit arrives at its extreme outward position and commences upon its inward movement at this point the opening 7 arrives at the exhaust recess 14 permitting the burned gases in the cylinder to escape untilthe cylinder arrives at the limit of its movement in the opposite direction and the openinr 7 after passing the comparatively narrow liridge or partition 23 arrives at the recess 14 just as ,the cylinder starts upon its second outward vstroke thus permitting the cylinder to be.

filled with the explosive mixture until it reaches the limit of its movement in this direction when the opening 7 reaches the edge of the recess 14 and is closed by the broad bridge 24 while the cylinder travels inward compressing the charge yuntil the cylinder again arrives at the inner limit of its move-` ment when the opening 7 arrives at the recess 14 and the compressed charge is exploded. y

Having thus described my improvement, it is obvious that various immaterial modifications'may be made in my device without departing from the spirit of my invention, hence I do not Wish to be understood as limiting myself to the exact form or construction shown.

What I claim as new, and desire to secure by Letters Patent is 1. ln a rotary gas engine, a plurality of rigidly connected pistons, adapted to rotate concentrically about a common axis, in combination with a cylinder mounted upon each su piston and means for controlling the radial positions of said cylinders.

2. In a rotary gas engine, a plurality of pistons rotating about and rigidly connected to a central shaft, and a cylinder reciprocating radially upon each piston, in combination with means for controlling the radial position of said cylinders, andmeans for controlling the admission and discharge of fluid to and from said cylinders.

8. In a rotary engine, a plurality of pistons rotating about and rigidly connected to a central shaft, and a `cylinder adapted to reciprocate radially upon each piston, in combination with means for controlling the ra- 95 Adial position of each cylinder, a port extendshaft, a plurality of pistons rigidly mounted upon said flange each 'piston having a longi- 105 tudinal port extending therethrough, a cylinder fitted upon each piston and adapted to reciprocate radially thereon, and means for controlling the radial movements of said cylinders, in combination with a cylindrical projection positioned within said flange and snugly fitting the interior thereof, a plurality of depressions formed in the periphery of said projection each adapted to successively communicate with the inner end of said ports and means for directing a fluid into or out of a portion of said ports.

5. A rotary engine, comprising a shaft, an annular flange concentrically mounted upon said shaft, a plurality of pistons rigidly mounted upon said flange, each piston having a port extending longitudinally therethrough, a cylinder fitted upon each piston and adapted to reciprocate radially thereon, and means for controlling the radial movements of said cylinders, in combination with a cylindrical V projection positioned within said flange and snugly fitting the interior thereof, a plurality of depressions formed in the periphery of said projection and adapted to successively communicate With the inner ends of said ports com rising an admission, eating cylinders.

an ignition, and an e aust chamber, fluid In testimony whereof, I have hereunto conducting means connected to said admissigned my name in the presence of two sub- 5 sion and exhaust chambers and means for scribing Witnesses.`

producing a spark provided for said ignition bers, in combination with :radiallyl recipro- JOI-IN BRAUNWALDER. chamber.

' 6. Ina rotary gas engine, a plurality of Witnesses.: radially' extended pistons, having formed BURTONU. HILLS,

.0 therein compression and combustion cham- CHARLES I. COBB.

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