US984033A - Explosion-motor. - Google Patents

Description

L. L. A. SEGUIN. EXPLOSION MOTOR. APPLICATION FILED JUNE so. 1910.

@itemized Feb. 14,1911.

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LOUIS LAZARE AUGUSTE SEGUIN, OF ARI'S, FRANCE, ASSIGNOR TO SOCIETE QES MOTEURS GNOME, OF. PARIS,FRANCE.

EXPLOSION Moron' l'Specification of Letters Patent.

Application filed June 30, 1910. Serial No. 569,148.

To all whom it may concern:

Be it known thatV I, LoUis LAZARE AUGUSTE SneUirna citizenof F rance, residing at 49 Rue Latlitte, Paris, in the Republic Aot France, have invented new and useful Improvements in Explosion-Motors, *of which the following is a specification.

in explosion motors.

In the improved motor the distribution This invention relates to `improvements l is eifected by the piston and valves are dispensed with. ln the motor, which can naturally comprise any number of cylinders,

4each cylinder isprovided with a middle part or waist of larger bore or internal diameter than the two endv parts of said cylinder which is provided with a stepped pis- 'ton formed by a central tubular part which is guided in the parts of small diameter of the cylinder, and carrying at an intermediate point ot' its lengthan exterior annular crown or Vpiston proper, the diameter of which corresponds to the large bore of the.

" cylinder and on which the explosions act.

' The central tubular part ot' the piston is divided by a partition into two chambers of which one is closed at its extremity and is provided with guide wings while the otherl 1s open to provide a passage for the fresh gases. The distribution is 'effected by ports provided in the sides of these two chambers,

by an annular channel formed at one of the -extremities of the enlarged middle part of the cylinder and by orifices or spaces be-V tween the guide'wings.

A motor of` his lm'proved type his greatl invention, the 'piston is shown occupying four diiierent positions in the cylinder.

f Fig. 5, shows diagrammatically in partial' vertical section the application of the invention to a motor with radial cylinders.v

'Each' cylinder of the motor comprises-af lower, 'chamber a communicating by one of Y l its extremities with the casing lgbywhich thefexplosive mixture is introduced. Above 'the chamber a is a middle part of larger;

bore c 01 and an upper chamber d of the same bore as' the chamber' a. The middle y. chamber has at thebottoma circumferential.

formed by a central tubular part divided by a partition g into two chambers h and i. The upper chamber it4 is closed at its upper which are orifices j and which have movement in the part al of the cylinder. j

The chamber- 7JA is open at the bottom tc central tubular part of the piston carries exteriorly above the partition g a crown c which constitutes the piston proper 'on which the explosions act and which divides the .middle .part of the cylinder into two chambers c' 01. The upper chamber hof the piston communicates with the chamber c1. of the cylinder by openings m and the part 4ings n.

crank p. Y l.

lg designates a sparking plugk the chamber'c.

Kturning in the direction of the arrow, the piston rises, and compresses tlu$m1xture.

the chamber c1 and chamber It, which oo mmunicate by means of the openings m, "1ne1 increases and avacuum tends to form there. When the piston reaches -the'top ot its 'stroke (Fig. 2) the 'mixture `in ai 1s comopenings fn. come into communication with. the chamber c1 the carbureted air introduced from the casing, orinstance through establish the'4 balance. v At this momentje *spark isproduced at the plugg the. gases compressedin' c ignite and the exploslon actionpi: the motor. ,Toward the end of vthis movement the .orifices y are nnmasked 3) and the burned gases contained inc escpe'by the open lchamber d' of the cylin- -der`while the crown or piston la drives back the fresh gases 'present in el through the openings mintothe chamber h. The aggre gate space c1 h, diminishes, 'these fresh compressed gases arein it. At the end oi' the v raten-tea nen. ifi, ieri. V

I channel f. In this cylinder works ar-,piston allow the fresh gases to enter thereinif'lhis mounted in The action isA as follows: Iii'the position shown in Fig. l, the annular chamber"c 1s^ full of the combustible'inixture Thecrank At the same time the aggregatey eapacityof pressed and ready'to be fired and as the.

a bore 1" in the motor shaft is drawn by the. suction in c1 andh into these chambers te revextremity and carries guide wings between l ofI the piston 'has below a series of opencreases, owing to the fact that the volume of 'drives the piston downward to :produce the carbureted gas in l, and in 01, sweep out theburned gases which ,are remaining 1n c (F 1g.

4) and-supersede. them, which terminates the cycle, whichis effected durin a single rotatio-n of the crank. lWhen't e piston rises again the carbureted gas resent in e is compressed, vavacuum is pr uced in c1 and in h z and the same operations are repeated in the' same order as above described. 'As can be seen the two stroke cycleis obtained withl tight cylinders and a complete expulsioniof burned gases. Further the valves are `dis.

pensed with and the construction of the motor considerably simplified.

In motors with radial cylinders as diagrammatically represented 1n Fig. 5, for an equal size ofmotor, greater power can be obtained than with motors of the same'kind employed vup to the present, as the enlargement of the middle parts' of the cylinders permits pistons of` larger diameter to be used' thus obtainingaJ motor'ofvla'rger cylinder bore, by utilizing to the best advantage the space which lies between two neighboringl cylinders and which'increases in proportion to the distance from the center of the motor by reason of the rad-ial disposiltion of the cylinders.

Having now described my invention, what to secure by Letparts, an 'annular channel formedl at the lowerend of the middle part, a casing with which the cylinder eommun'icates,'means -for feeding carbureted air/to said p casing, a stepped iston formed by a central tubular 'part guided in the parts of small diameter of the cylinder and carrying at a. point in' termediate of its lengthan exterior crown or piston proper the diameter of which corresponds tothe larger bore of the cylinder, a

partition dividing the central tubular part of.` the piston intotwo chambers of which one is closed at vits extremity, guide wings formed 'at the upper `end of the central tubular part and having-orifices or spaces between them, vorifices formed at ,thevbottom of the closedcha-mber of the central tubular part of the iston, and ori'cesvformed at the lower end) described and for the purpose settorth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. l v

LOUIS LAZRE AUGUSTE SEGUIN.

Witnesses:

ANTOINE LAvoIX,

C. Coxn.

l of the piston, substantially as

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