US817905A - Motive-power engine. - Google Patents

Description

lNTERNAL COMBUSTION ENGINES,

Tra-ns mission mechanism.

No. 817,905. PATENTED APR. 17, 1906.

P. DANIEL.

MOTIVE POWER ENGINE.

APPLICATION FILED DEG.8. 1902. I

2 SHEETS-SHBET l.

I28. INTERNAL COMBUSTION ENGINES,

Transmission mechanism.

PATENTED APR. 17, 1906.

2 SHEETSSHEET 2.

P. DANIEL.

MOTIVE POWER. ENGINE.

APPLICATION FILED DBG.8.1902.

' result.

UNITED sTATEs PATENT oEEroE;

MOTlVE-POWER ENGINE.

To all whom it may concern.-

Be it known that I, PAUL DANIEL, a citizen of the Republic of France, and a resident of Levallois-Perret, near Paris, France, have invented certain new and useful Improvements in Motive Power Engines Actuated by Petrol or other Light Hydrocarbons, of which the following is a specification.

My invention relates to motive-power engines actuated by petrol or other hydrocar bon. and consisting of any number of sets of cylinders, each set consisting of two coupled or twin cylinders. The engine may, however, consist of a single cylinder; but I prefer the types havin two or four cylinders, and in the example escribed below and represented in the accompanying drawings a type consisting of four cylinders is used.

In the accompanying drawings, Figure 1 is a transverse section of the engine, and Fig. 2 a longitudinal section.

The motor, which is a four-cycle one, is

characterized by the production of an impulse at each revolution. This result is obtamed 1n the following manner: Each two pistons a are fitted with a long transverse shaft 6, which passes through them and slides in guides formed in the sides of the cylinders c, Fig. 1. Each s'haft carries two rollers (1,

arranged inside the pistons and which roll upon two elliptical cams e, fixed upon the driving-shaft f. If the shaft is turned, it will be seen that the rollers acting upon the shafts b of the pistons force the latter to move in the cylinders in the same way as an ordinary motor, so as to give a four-cycle Only since in an ellipse the vector radius passes through two maximums and w two minimums it is very evident that during a single revolution there will be two up and down movements of the pistons, these two movements producing the com lete fourcycle action of the motor. It fol ows, therefore, that great simplicity is obtained. These cams in my improved motor are mounted directly upon the drivingshaft f, which is straight. They operate the exhaust-gear g, Fig. 1, carrying inside a roller which runs upon the cams, so as to reduce the friction to a minimum. This gear acts in turn upon levers h, Fig. 1, which are mounted upon the side of the case'i and which raise the exhaustvalves 7c, Fig. 1. The case containing the ignition device Z, Fig. 2, is also carried directly upon the driving-shaft, as mentioned above.

Specification of Letters Patent.

Application filed December 8. 1902. Serial No. 134,354-

Patented April 17, 1906.

It can oscillate round this shaft, so that the ignition can either be hastened or retarded. The cylinder and the covers are in a single piece and are water-jacketed at m.

p represents electric igniter 'jlu' s. v

p represents the inlet-valves or t e cylinders, said valves being arranged in chambers n, to which the explosive charge is fed through inlet-pipe p.

The operation of the ellipses and rollers is" as follows: It was pointed out above thatan ellipse when it revolves forces the, ,corre sponding roller to roll on it, takinglwithj itr the piston in a straight stroke from thf'botig tom to the top. The stroke from thetop .to the bottom.that is to say, the downstrok of the pistonis obtained, as explained low, in two entirely dififerent ways.

.First. In work this downward stroke takes place automatically, the cams ofthe valves of two twin cylinders/being sofixed that there is always an exp osion'in oneiof the cylinders at the time that thesecondcyh inder is drawing in its char 'e.

Second. To obviate t e I inconvenience 8o t1on,"a

which will arise from a failure of.i nonexplosion, the breakage of a va ve or the like, each set of cylinders is provided outside with two tubes 1', closed at theirupper ends by an automatic inlet-valve r. and in which two 8 5 dle as, into which is screwed a transverse axis 95 m carrying a small roller :19, which runs on a surface or track m provided on the elliptical cam. This roller insures the downstroke of the piston at starting when the engine is at work, the downstroke taking place automat ically, as has been already explained.

T ese cylinders draw in a quano The cylinders are fixed upon a case or chamber, the ends of which carry bearings '12, in which the driving-shaft f revolves, upon which the ellipses e are fixed. This case contains the necessary oil for lubrification. The elliptical cams as they revolve throw this oil over the cams which operate the valves upon the bearings carrying the driving-shaft and finally upon the rollers and the pistons, passing across the lower part of the cylinders, which have openings for the purpose, as shown at w in Fig. 1.

The fly-wheel a; is arranged outside the 5 case, and the variable ignition device is situated at the other end of the shaft.

General cn8idemt'i0ns.It will be noticed I I rods prevents the inconvenience of oscillating parts, which are always very diflicult to balance.

Third. That the suppression of the intermediate spindle for driving the valves leads also to the suppression of all toothed gear in the motor. 1

Fourth. That the absence of a cranked shaft means a-very great economy in construction by doing away with a part very ex- 2 5 pensive and difficult to make. Moreover, the substitution of a straight shaft, which may be made hollow, allows a considerable reduction in weight, that of a crank-shaft being considerable and its shape requiring very o greatstrength to resist the different stresses to which it is exposed.

Fifth. That the substitution for the connegating-rod for a roller d, running freely on an ellipse '6, allows the automatic regulation in the piston a'of the play which results from wear, which takes place on the top of even the best-fitted connecting-rods and occasions shocks very prejudicial to the proper working of the motor.

I claim- In an engine of the character described, the combination with a plurality of cylinders arranged side by side, pistons therein, a shaft passing through the pistons and slidable within the cylinders, rollers arranged upon the shaft, one within eaohpiston, a drivingshaft and elliptical cams mounted as de: scribed upon the driving-shaft and bearing upon the rollers, two tubes arranged exteriorly of each set of cylinders, an automatic inletvalve closing each tube at its upper end, a piston working in each tube, and rods carrying the pistons and mounted on the shaft which passes through the first-mentioned pistons, a spindle :11 carried by each of the power-pistons, a transverse shaft screwing into each spindle and a roller mounted upon each of said transverse shafts, and running upon a bearing-surface on each elliptical cam in the manner described.

In testimony that I claim the foregoing I have hereunto set my hand this 26th day of November, 1902.

PAUL DANIEL.

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