US 1033701 A
Description (OCR text may contain errors)
G. 1001mm. ROTARY EXPLOSION ENGINE.
APPLIOATION FILED OCT. 30, 1911.
Patented July 23, 1912.
3 SHEETS-SHEET 1.
'G. IOCHUM. ROTARY EXPLOSION ENGINE.
. APPLICIATION FILED OUT. 30, 1911. 1,033,701. I Patented July 23,1912.
3 SHEETS-SHEET 2.
G. IOGHUM. ROTARY EXPLOSION ENGINE.
APPLICATION FILED OCT. 30, 1911.
Patented July 23 1912.
3 SHEETS-SHEET 3.
3f wowvtm' unrrEDs'iiATEs PATENT ora ion.
GABRIEL IOCHUM, or rAaIs, FRANCE, ASSIGNOR OlF-ONE-I-IALIE TO LEON ."rosnrn GUITARD, or rams, FRANCE.
, nornnx EXPLOSION-ENGINE.
Specification of Letters Patent.
Patented. July 23, 1912.
To all whom it, may concern:
Be it known that I, GABnmL'IocHUM, a
. citizen of the Republic of France, residing at 34 Rue des Mart-yrs, Paris,' France, have invented new and useful Improvements in Rotary Explosion-Engines, of which the following is a specification.
This invention relates 'to a rotary re-' versible, valveless explosion engine of an extremely light construction having a plurality of compound cylinders arranged with their axes parallel to the axis of rotation.
In thGJIHOtOI' according to my invention the central shaft is fixed and aboutthis shaft revolve a number of cylinders in which pairs of pistons reciprocate. Suction and explosion take place 1n the middle bf the length of the cylinders between the pis tons, while exhaust takes place through ports which are opened at the end of the stroke of the pistons at the'two extremities of each cylinder. The two pistons working in each cylinder move simultaneously in op posi-te directions, that is, either from the center of the cylinder toward its ends, thus moving away fromeachother during one stroke, or from each end of the cylinder toward the center thereby approaching each other during the next stroke. The number of cylinders can be varied according to circumstances.
so The accompanying drawings represent???" way of example, a'motorconstructed accor ing to my invention having-eight compound cylinders hating double pistons.
. Figure 1 is a side elevation, partly in sectioh along the axis of the motor. Fig.2 is an end elevation, partly in section along the linearw andm pai't along line w-w, Fig. '1. Fig. 3 is a cross-section partly along line y-y and partly along 2-2 Fig. 1. Fig. 4 represents a detail, in section along line a e, Fig. 2, of the valves ofthe oil a represents the central fixed shaft of the nwtor, each end of which is, intended to be heldby a suitable support according to the purpose for which the. motor is intended, which latter rests only upon the ends of said shaft. On the shaft a are keyedat 6 two bevel wheels I), each of which is held fast by a collar 6 which abuts against a shoulder on the shaft in order toavoid any displace- 5 Tnfieit. Bevel wheels 0 roll upon each of the shaft (1 equal to the number of cylinders.
These arms 0? are strengthened by cross bars d Z which serve as brackets for the stub shafts of the bevel-wheels 0. The shafts a form part of the crank arms 0 each of which drives the corresponding bevel wheel 0 by means of an eccentric boss 0 on which. the bevel wheel is mounted. The two frames d are connected together by stays d having shoulders (Figs. 2 and 3) which hold the two frames d at a fixed distance apart, and penetrate at each end with a slight amount of friction in their bearings up to the levelof the teeth of the bevel wheels I). In order to avoid displacement of the satellites 0 either under the force transmitted orunder the action of centrifugal force, shafts. 0 are. held in position on the stays (Z by means of abutments c -having ball bearings held in place by ringsc in two parts and fixed on the shafts c, by meansof grooves 0 formed in the latter and in whichengage the said rings. i
The crank-arms 0 are connected by rods 6 to pistons e working in pairs in the-cylinders f in which the two pistons of each pair reciprocate in opposite directions, that is, in
eacacylinder the two pistons move simultaneously either toward or away from. each other. Each of the cylinders f engages' by means of its two ends, wit-h a bearing formed in the end plates cl" of the framed,
and is provided at the center. with a tapped boss f (Fig. 3) for th ignition plug, as well as with a pipe f through which the. explosive mixture is sucked into the cyl1nder between the two pistons. The pipes 3 of all the cylinders are held by means of screwed sleeves f in a drum 1 with wh ch they formone piece. This drum conslsts' of two flanges held together by bolts f Fig. 3) and inc'loses, by means of the shoul er 9 a hollow drum 9 mounted on the central.
shaft a.- The drum' turns with-a certain 105 amount of friction on the shoulder g and bears against'the packing leathers g, 9",
thus making a tight joint.
The ends of the radii of theframe (Z engage with the heads h, which receive the ends of the frame in grooves 72, The heads h extend beyond the ends of the cylinders grooves 2' the radii of the frame (Z and are,
firmly fixed to each of these radii by means of a kind of circular key 21 which latter, after the member 2' is placed in position, is manipulated by means of a key introduced through the aperture 2' the sand key forming a pinion corresponding to the gearing of a rack fixed to or formed on the rim ofthe circular key 2' I The engine casing comprises two closed end sections One of the casing sections, or if desired, both of these casing sections are provided each with a sprocket wheel, pulley or toothed wheel j which can either be in one piece therewith or can be fixed thereto in any suitable manner so as to revolve about the shaft a on' a bush j and to transmit motion from the motor to the machine to be driven.
In themotor shown in the drawing as an example, as the bevel wheel 12 is of a diameter equal to four times that of the satellite wheels 0, the consequence is that for one revolution ettected by one of these latter around the large wheel 6 it will turnfour.
times about its own axis, and that each cylinder f will therefore, for each revolution'of the entire motor about the fixed shaft a, give an effect equal to twice that of the fourstroke cycle of an ordinaryexplosion engine.
In consequence the suction period of each cylinder f will correspond to one eighth of the circumference. In order to provide for I the suction of the explosive mixture through shaft or which serves as a feed pip ,and sup-' pipe f the shoulder g of the drum 9 must have two apertures g diametrlcally'opposite each other and eacH- dorres ondin' to Each o the suitable manner so asto advance or retard the ignition. A contact m is fixed for eacli cylinder f in a circular ebonite framem at- 1 .tached to the flange of the drum f and consequently turns-therewith. This contaet is connected to the ignition plug of the corre- I while the drum 9 remains, while-the engine is running, fixed on the shaft; a through the hollow interior of which the-gas or explosive mixture coming. from the carbureter is fed througlrthe apertures a The-carbureter (not shown) is fixed on the left hand end (Fig. l) of the hollow plies gas tothe cylinders f, under t o control of a speed regulator 7c. The latteractuates a distributing valve 70 the rod of wh ch is constantly urged toward the right (F g. 1) by a spring 70 This s ring can be adJusted at will by means of t e bearlng 7n sliding along a screwed rod is", passing through a boss is. The rod in terminates a square 7:1 adapted to receive an ad uStmg key by means of which the rod can be rotated so asto increase or diminish the tension of the spring. The overnor It acts upon the valve 70 against t e action of the spring 10 through the intermediary ofracks 7c fixedonticircular bracket lb The latter carries rolls-la Which-move in a groove in a ring 70 and the latter,'by means of adiametral shaft 10 sliding in two slots'k in the shaft a, actuates the spindle is of, the distributing valve.
-When in operation the valve k is constructed and adjusted in such a manner that, when the speed of the motor exceeds the normal, the valve moves from right to left (Fig. 1) under the action of the governor so as to closegradually, first the .right hand ports a (Fig. 1) thereby gradually cutting of! half the supply of gas, to the cylinders f. It then gradually closes the left hand ports Sward position (to the right in Fig. 1) all admission is out off and a braking action is obtained from the motor cylinders.
For ignition purposes a maigneto is pro- :vidd consistingof a fixed in uction ring Z having high and low tension coils and suitably supported by the shaft a, about which imove two pairs of permanent magnets Z Z revolving with the drum f to' which they can be fixed in any suitable manner, or they p can be driven in any other manner by the rotary movement of the motor. One of the terminals of the magneto is connected to the metal of the motor; the other isconnected to two diametrically opposite studs m mounted v p The latter is mount;- edwith friction on the shaft a and can be on an ebonite ring m moved angularly around said shaft in" spending cylinder and passes in frontlof' one of the studs m at the exact moment when ig- 1K nition should take place in the cylinder.- It
is obvious that the commutator for the 'ig-,
"When theengin 4 turn around the central, shaftfa owing tothe rolling action of the satellites' fitotated bythe action of the pistons e jon'fthe crank arms on the wheels bfland thu act asanition can be arranged-differently "to'fl the I I I e isrunning, theicylinde'rsprovided with two arcs it having rack-teeth and engaging one on one side" and the other on the opposite side with the toothed extremities of a diametral shaft 11. on the centerof which is keyed a helicoidal wheel a driven from a worm n. in the longitudinal direction by the two abutments a of the small frame or", and can be actuatedby the rod n terminating in a square 72. forthe reception of a crank; By this means motion in one direction or the other can be transmitted to the shaft n? and thence through the racks-n to the drum g Abutments can be provided to limit the ex tent of movement of the drum. Similar mechanism to that used to move the drum g angularly could-be used for instance to rotate the ring m about the shaft 0 for the purpose described.
The spent gases exhaust in each cylinder at the end of the stroke of the pistons 6 through orifices f which are uncovered by the pistons at the end of their outward strokes.
Lubrication is effected by double-acting oil pumps 0, one of which is mounted-on the end-plate (Z of. each of the frames 03 and draws in oil continuously through valves 0 (by means of'piping not shown). The oil is discharged by the pump through the ports 0 into the farthest ,recesses of the frame'd. behind the stays d whence it escapes either through ,ducts provided in the shafts c Fig. 1, or past the rubbing surfaces of the engine under centrifugal force, thus constantly lubricating all parts during its pas sage.
The oil pumps 0' can be driven by means of a toothed rim orringo fixed on the shaft in and engaging with a. toothed wheel 0* whose shaft carries a worm 0 engaging with a worm wheel 0 (Fig. 2) revolving on a. fixed shaft 0 Thewheel 0 carries an eccentric pin 0 on which are pivoted the connecting rods 0 which transmit motion to the pump pistons 0 in the pump body. The suction valves 0 are placedin the bottoms of the body of the pump-' 0, through,
which. valves the oil is sucked into the pump cylinders 0 and discharged through. the valves 0 to the parts to be oiled and to the recesses in the framed. t
The action ofthe, motor will be easily understood after the above description withoutfurther explanation.
It is obvious that the invention is not strictly limited to the arrangement shown The latter is held and described above since it is evidentthat certain modifications could be made as may appear necessary or expedient. For instance if necessaryin the case of large cylfinders a compression-relief valve could be fitted which would open some instants before the compression stroke of the cylinders.
I claim: 1. In an engine, the combination of a fixed central shaft; oppositely disposed casings revolubly mounted on said shaft; a frame mounted wlthin each of said casings and surrounding said shaft; said frames having the casings secured thereto; a pluthe shaft mounted on saidcasings; a transmission gearing comprising intermeshing pinions mounted on said shaft and casings;
and pistons operable in said. cylinders con.
ne'cted with said transmission gearing for imparting rotation'to the casings; substantially as described. i
2. In an engine, the combination of a central shaft; oppositely dis'posed'casings revolubly mounted on said shaft; a frame mounted within each of said casings and.
said cylinders, substantially as described.
3. In an engine, the combination ofa fixed central shaft; oppositely disposed casings revolubly mounted on said shaft; a frame mounted within and secured to each of said casings; a plurality of cylinders disposed parallel with the central sham-and having the ends thereof engaging with and supported by said casings and said frames; a
plurality of bars disposed parallel with andbetween said cylinders, said bars connecting said frames; pistons operable in each of said cylinders; and a transmission gearing v comprisin intermeshing pinions mounted on said shaft and said casings and connected with saidpistons to impart rotation to the casings, substantially as described.
4. In an engine, the combination ofa fixed central shaft; a pair of oppositely disposed casings revolubly mounted on said shaft; an
annular framesecured'to each of said caslugs and surrounding the. shaft: said frames comprising each a plurality of radially disposed bars. connected by cross bars; a plurality' of cylinders disposed parallel with thecentral shaft and carried by saidcasable in each of said cylinders;
members of said frames; said ingsya pair of bevel pinions mounted within the casings on said shaft; pistons opera plurality of satellite gears connected to be actuated by said pistons and meshing with said pinion s; radially disposed stub shafts on which said satellite gears are mounted; said stub shafts being journaled on the connecting cross interineshing gears and pistons operable to impart rotation to said casings; and'nieans for charging said cylinders; substantially as described.
5. An explosion engine comprising'a plurality of motor cylinders, a central fixed hollow shaft having fuel ports, said motor cylinders being adapted to rotate about said fixed shaft, said cylinders having fuel admission ports adapted to register at the correct intervals with the fuel supply ports in said hollow shaft, a valve sliding within said shaft'to control said fuel supply ports, said hollow shaft having air supply ports and means actuated by the engine to move Copies of this patent may be obtained for five cents each, byaddressing the Washington, D. 0.
said valve to control said fuel and air supply ports in the manner described.
In an internal combustion engine, the
combination of a fixed central and tubular pistons; ap-
for charging said cylinders with fuel; a
valve mounted in said shaft for controlling the fuel supply to said cylinders; and a centrifugal governor associated with said casing operable to automatically actuate said controlling valve, substantially as described.
, GABRIEL IOCHUM.
LOUIS RINUY, DEAN B. MASON.
Commissioner of Patents,