US1294487A - Internal-combustion motor. - Google Patents

Description

E. LABERGE. INTERNAL COMBUSTIO N MOTOR.

18, 1919. I 2 SHEETS-SHEET I.

Patented Feb.

FPLICATION FILED JULY 31 I917 fir flu/w [aw/ye E. LABERGE. INTERNAL COMBUSTION MOTUR.

APPLICATiON Fl LEU JULY 3!, H17.

Patented Feb. 13, 191?).

2 SHEETS-SHEEI 2.

" m re/WW 67/02/52; Zafieryg subject'oif sh-s King ince of Quebec sud Application filer Holy 31.

s T all whom it wm'ewi:

EHRAEM LABEBGE, s Great Britain, and reslclem; of the city of Montveal, m the Prov- Eominion of Emails,

Be it known that l,

hsve invented, certain new will useful lminternal combustion. motors, and

, ventioio of Whieh fizhe iollowing a ,extremeiy simple The inlet and. exhaust awe provements in llnterrislflomhustion Moi-loss, 'Eull, clear, and exact closesiplziok1,.

This inveiiitioii relates to improvements in 1 "he object is to provide s motor of and eompsot ilesig-gi hsv @abls 0f the invention lllg s miniiiimn number of ports am a. of being prosfiueeil at small cost.

A further object is m proviile a motor which is perfeotiy hallowed and wili therefore be free from vihration.

A still further object is to eliminate he flywheel ordinarily found; in iniemel oom- =-hustion motors, thereby reclucmg'theweighh.

Another object is to provide a, device "which will operate equally Well either as an internal combustion motoi ores 2m origami sion motor using steam or compres d on. f

The device consists essemislly of a, cylin der mounted on a shaft which passes axially therethrough. Two zlismeti'icall disposed pistons are provided in the cylinder, one being fixed to the shaft and sleeve are each provisc'i with crank, and these cranks are couplefi by means of connecting rods to s shaft. through ports formed in the cylindrical surface, and the inlet and ezshshst are c'ontrollezl jointly by the movement of the pistons and the movement of e ylimier, which is geare l to the oraiilsc sheila, so as to revolve on its supporting shsfiz. i

In the firs-Wings which illustrate the in v Figure 'l is vertical longitudinal section of thecleviea Fig. 2?, is 2:, cross sectlon on the hue 2-2,

igs. 3, 4, 5 and 6 are diagrams illustrating the cycle of operation.

Figs. 7, 8, 9, 10 and 11 are diagrams illustmting the operatiop of each stage of ihe c cle.

Referring more particularly tot-he fimwings. ll designates a, base carrying bearings 12 and l3 located respectively above 2H1&

Specification of Letteys Patel-x32.

It therefore follows revoluhls on the shaft shaft sn'l the other to s v sleeve revombiy mounteil on the sham. The

to the travel oft The cylinder is lfmeia seai E F-3:11., 'iimih fiea'ial 2%. 133,? 36. below the base. A straight sheila M is ions nsled in the upper bearings 12 and 2, crank shaft 15 is journsled. in the lower l'aeaiingsw A cylinder 16 having some]? 17 is i'evoluhly mounted on the shalt meshing with s'pinion li on the Weill: shaft, ihe ratio 01" the gems spproasi mately 9;:1.

Radislly disposed pistons 2% and 23. i'nountecl in pairs in the cylinler lay moons of hubs "22 and the pistons 20 being mountosl diametrically. opposite onihe huh 255 and. the pistons 21 aliame "Easily ogopesiivo on the hub The PiSELOEES em Lend from to end of tho eylimiey, hula the holes extend only half so as to meet in the tons sire connected to their ca 'eying hubs through only one-nah? of then lengths mid.

in she one? half Eheii" lengths overhang she other hub. '35 his is eiesrly shown Fig. 1. Each of the pistons ooimscmol to its hub by studs 2 screwed into the gas 14,, esmies a gear that the K ,n, will ton and assiii thiou h the Wall 0 he huh and secured. loy nuts lseyecl to the shaft M While the hub 1S and indepemlenizly of the cylinder, and is provided with an sxtezision 26 which piisses through the eylincler cover. Cranks l? sin! 28 ere con necteil respectively to the extension 26 of the hub 22, and to the shaft carrying the hub The cranks 27 and 538 are couples to the cszmks 2-9 of the crash: shaft 15 by ironneeting rocls 89. The ci'mnks 2'3 and 28 are longer than the cranks 29, the 'atio be ing such that less than one-half IifiiOlllilOn of the longer cmnlss produces 1 half revolution of the shoi'te cranks. Each of the pistons is pmvicled on all its bearing surfaces Willll pool;- ing 31 of any suitable alesei'iption. Inlet and exhaust ports and; are provided in the curved Wall of the cylinder, anti are spaced appifoximstely the thickness of a. piston apsr'e. The ignition device 34 is provided in (he curved Wall of the cylinder at a point approximately dis meti'ically opnosite frnm zhe inlet port. provided with an outer or jacket Well 35 spaced from ifs inner or main Wall, and this space is blocked in the "neighom-hood of the ignition device, and also in the neighborhood of the. ports, so that the exhaust port discharges into the space on The hub is r iv lows:A.ssuming the parts to oneside of the rotative center and the inlet port connects with the space on the op posite side of the rotat'ive center. A stepped frusto-conical projection 35* is provided on the end of the cylinder remote from the cover, and has formed therein on each of its steps a groove 36. These grooves are connected by passages 37 (only one of which is shown) with the jacket space. Grooved rings 88 and 39 are revolubly mounted on the frusto-conical steps, and are each held by a nut 40 which may be adjusted to take up any wear, and thus maintain a fluid tight joint between the ring and the surface on which itbears. The ring 38 connected with a carburetor 41 and the ring 39 with an. exhaust pipe 42.

An additional passage (not shown) is provided in the closed end of the cylinder. and in the frusto-conical extension, through which the high tension cable 43lcading to the ignition device may pass. This cable leads from an insulated ring 44 mountcd on the shaft, and supplied with the high tension current for ignition by a suitable brush The operation of the device is as folbe in the po' sition shown. in l igs. 2 and 3, it will he seen thatthe pistons divide the cylinder into four chambers a, 7). c and d, chambers u, and

0 being small, the former in communication with the inlet port and'the latter with the ignition devicq while chambers 71 and (Z are large, the former being entirely closed and the latter in communication with the exhaustport. Chamber (1, is empty, cham her 5 contains a new charge uncrmiprcssml, chamber 0 contains a new charge compressed, and chamber 1 contains a burnt charge. The charge in chamber c is exploded and drives the pistons 20 and 21 apart until they assume the position shown in Fig. 4. The separation of the pistons causes a new charge to b drawn into chamber a, and at the same time chambers 71 and cl are reduced in size, so that the charge is compr ed in chamber and the burnt charge in chamber d driven out of the exhaust port. Owing to the gear connection between the crank shaft 1 and the cylinder, the cylinder rotates in the direction of the arrow, so that the ports and ignition device follow the pistons '21 as indicated by the arrow. 5 living to the use of cranks, the rotation of the crank shaft and therefore of the cylinder does not hear the same relation to the movement of the pistons throughout their stroke. T he result is that as the pistons 'ap fizwzuili the position shownin Figs. 4 and '1, the cylinder moves relatively faster, and the piston 21, i. 0., that moving in the same 2 rcction as the cylinder, advances beyond s position in Figs. 4 and 11, shown in rig. it and then returns to its proper position. The piston 20 is traveling in the opposite direction to the cylinder, so that it is obvious how this latter piston will pass the exhaust port at'the same time that the piston 21 passes the inlet port by advanc- 7o ing beyond its position and then retreating as the cylinder continues to move at a uniform rate. In this way, the inlet port 32 passes the piston 21, the exhaust port 33 passes the piston 20, and the ignition device 75,

passes the other piston 21, thus bringing the inlet port into communication with chamber (Z, the exhaust port into communication with chamber 0, and the ignition device into communication with chamber a. This means that chamber a, into which the new charge has been drawn, is noW closed; chamber (Z, from which the burnt charge has been expelled, is now in communication with the inlet port; chamber 0, in Which the exploded 5 charge has been fully expanded, is in communication with the exhaust port; and I chamber 5', which contained the new charge, is in communication with the ignition 'device. On the next explosion, the pistons resume their original position, as shown in Fig. 5, and at the same time the cylinder advances aquarter revolution, so that the ignition device is in commimi'cation,with

the charge compressed in chamber a, and

so on The explosion in chamber (1 moves the pistons, to the position of Figs. 4 or 6, and the cylinder to the position shown in Fig. 6, with the ignition device in communication with, chamber d containing a compressed charge. An explosion inchamher (Z returns the parts to the positions shown in Fig. 3.

From the foregoing, it will. be seen that the device operates on the four cycle prinof the jacket space, which covers that portion of the cylinder within which compression is occurring, and warm this portion of thc cylinder. I At the same time, the exhaust gas is cooled, and therefore the pressure drops,so that this jacket purpose of a. muffler. The cooling of the hotter parts of the cylinder and Warming of they cooler parts has the ei'fect of maintaining more or less uniform temperature throughout the circumference, so thatthe 139 The exto the inlet port, so that the coolspace serves the If desired, coolin cylinder is not distorted by unequal eXpan-- or compressed air as motive fluid, it will be necessary to alter the ratio between the cranks 27 and 28, and the cranks 29, so that the pistons will close up almost into engagement with each other instead of coming to rest a considerable distance apart, as shown, and as is necessary in an internal combustion machine, owing to the limitations of compression. The ignition device will, be removed and motive fluid admitted here as well as at-the inlet port 32. An additionalexhaust'port will be required. Steam will be admitted at the opening for the ignition device, and the additional exhaust port used only when the ratio between the cylinder and crank shaft is retained. If desired, the ratio may be changed to 1:1, and one each of the pistons 20 and 21 removed, and the length of cranks correspondingly altered, so that the pistons, in place of traveling each something less than one-quarter of a revolution, travel approximately half a revolution each. 4 v '5 From the foregoing description, it will be obvious that the apparatus is extremely simple in construction, and may be very cheaply and quickly manufactured. There are no valves, as the pistons'and cylinder working in combination perform the functions of valves, and therefore all loss of power through leakage at this point iseliminated.

Having thus described my invention, what I claim is:

, In combination a rotary cylinder, a shaft arranged centrally of said cylinder, two pairs of pistons, a carrier for each pair oi 'pistons, one of said carriers being mounted on the shaft and fixed thereto, and the other carrier being loosely mounted on the shaft and havinga sleeve extending through the casing, said pistons being adapted to oscil-- late inthe casing, inlet and discharge ports in the casing, an ignition device carried by the casing, said inlet port, discharge port, and ignition device being brought by the movement of the casing to difi'erent positions in relation to the pairs of pistons to coiiperate in succession with the spaces between said pistons, whereby the combustible fluid is admitted to the spaces in succession,

compressed, fired and discharged, a shaft parallel with the shaft first mentioned, a gear connection between the said shaft and the casing for rotating the same, a pair of cranks on said shaft, a crank arm on the center shaft of the casing, a crank arm on the sleeve of one set of pistons, and a pitman between said crank arms and the cranks of the shaft having the gear, substantially as described.

In Witness whereof, I have hereunto set my hand.

EPHRAIM LABERGE.

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