US961315A - Two-stroke cycle-motor. - Google Patents

Description

A. PEUGEOT, T. HUBER & H. DE LOSTALOT..

TWO-STROKE CYCLE MOTOR. APPLIOATIQN FILED PEBJO, 1908.

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A.'PEUGEO' I', T. HUBER & H. DE LOSTALOT. TWO-STROKE CYCLE MOTOR. APPLICATION FILED PEBJO, 1908.

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l TWO-STROKE CYCLE-MOTOR.

Specification of Letters Patent. Patented J 1111;; 14, 1910.

Application filed February 10, 1908. Serial No. 415,144.

To all whom it may concern:

Be it known that we, ABMAND PEUGEOT,

TONY HUBER, and HENRI DE LOSTALOT, citizens of the Republic of France, residing at 56 Rue du Vieux Pont de Sevres, Billancourt, Seine, in the Republic of France, have invented certain new and useful Improvements in Two-Stroke Cycle-Motors, of which the following is a specification.

This invention relates to improvements in, two stroke cycle motors of the kind in which the cylinder is closed by a sliding shutter which allows the connecting rod to be articulated directly to the piston while utilizing the capacity of the cylinder between the piston and the sliding shutter as a compression chamber forthe fresh gas.

One of the improvements consists in arranging on the supports of the sliding closure, interposed between the cylinder and casing two fixed metal bodies which reduce the capacity of the chamber formed between the piston at its bottom position and the said slide. By this means, a better initial com ression of the fresh gases admitted is obtained without supplementary mechanism,

-- edgeof the which insures a more rapid and complete evacuation of the burned gases and at the same time an increase in the volume of fresh gas admitted per stroke.

-Another improvement consists in insuring the preliminary admission of the fresh gases directly into the hollow piston, which is done by means of an inclined passage which conducts the gases through apertures arranged in series in the lateral wall of the tubular prolongation of the piston. By preventing the admission of the gas at the lower iston, the sliding closure can be arranged lmmediately below the piston when in its lowest position. Consequently the capacity of the preliminary compression chamber is further reduced and waste spaces are avoided. Moreover, the; arrangement of this passage is sucn that the fresh gases are directly projected under the upper face of.

the piston, and energetically cool the said piston and render it quite practicable to use aluminium or analogous metal-for the piston.

By these improvements the efiiciency of the motor is appreciably increased. The motor can be further simplifiedby substituting for the rotary joint, which makes a tight passage for the rod through the sliding closure, a plane, sliding joint in which the parts liable to be worn are easily replaceable.

The annexed drawing illustrates the invention, in which Figure 1 is a section of the entire motor. Fig. 2 shows the piston, partly in section and partly in elevation; Fig. 3 is a section of the rotary joint, on the line A A of Fig. 5. Fig. 4c is a sectionof the rotary joint on the line B B of Fig. 5. Fig. 5 is a "plan 'view'of the rotary joint. Fig. 6 is a section of the plane, sliding joint on the line C C of Fig.

Fig. 7 is a plan'of the plane, sliding joint. Figs. 8 and 9 are sections of the supporting plate of the sliding closure, on the lines D and E E of Fig. 10 respectively.

Fig. 10 is a plan of the supporting plate of I the sliding closure.

The supporting plates p and 9 form a kind of flat box in which the sliding plate 3 is movable, which is thus perfectly guided,

the said plates each have a rectangular slot 0 which allows of the movements of the rod B. On the plate p, cast integral there with, two metallic bodies 1' are so arranged as to partly fill the interior of the casing A when the piston A is in its lower position. On the plate f is riveted the casing s which ,incloses the boss t in which oscillates -the rod B. The plate ';0 is thus situated immediately below the lower edge of the piston when in its lowest position, leaving between the two a'very small clearance. The supply of gases entering at 'v is controlled by an automatically opening admission valve u; and is divided passing through two passages m and y, one of which opens obliquely 1nto I the cylinder. The piston isprovided with a projection Z and with ribs 2, which greatly 'facilitatethe cooling thereof. 'The piston wall A has apertures 1 so arranged that at the proper moment they arrive opposite the orifice of the passage y in the cylinder. In the example shown in the drawing, the cylinder is provided with a double casing 2 for the circulation of water for cooling. The action is the same as with the known construction but the results sought for are obtained in a more complete manner. Owing to the reduction of the preliminary com ression chamber, owin to the provision o the bodies 1* and from t e'close arrangement of the sliding closure relatively to the lower. edge of the piston in its lowest position a llt better initial compression is obtained and consequently a better evacuation of the burned gases, and a larger volume of gas admitted per stroke. Moreover the method of "introduction of the fresh gas into the piston insures the energetic cooling of the same and allows of the entirely practical utilization of pistons of aluminium or metal having analogous properties. Finally, the lightness and simplicity of the motor may be increased as has been stated, by using instead of the rotary joint shown in Figs. 1, 3, 4, 5, the plane, sliding joint shown in Figs. 6 and 7.

With this device the connecting rod of rectangular cross-section used bears against both heads of V-shaped surface of two small pieces 4: easily removable and replaceable in case of wear, for which purpose it is sufficient to nnscrew and remove the bolts and screws 5 which hold them. The rod being constantly in contact with these pieces during its movement, the joint, though, of simple construction is very tight. Instead of the flat joint, the cylindrical joint t moving in the cylindrical bearing 8 can be used.

Having now described our invention, what ;we claim as new and desire to secure by Letters Patent is:

In a motor of the character described, the combination with a vertical cylinder, of an apertured piston adapted to divide the same into a compression chamber and an explosion chamber, there being a horizontal admission port leading to the explosion cham' her and an upwardly inclined port leading to, and serving as an inlet and outlet for, the compression chamber, said inclined port being adapted to direct gases entering the compression chamber through the apertures in the piston against the piston on the suc tion stroke of the latter, means whereby said ports communicate and are adapted to transfer gases from the compression chamber to the explosion chamber, a pair of super osed supporting plates at the lower end 0 said cylinder, a pair of filler blocks mounted on the upper supporting plate and projecting into the cylinder, a plate mounted to slide between said supporting plates, a casing fixed to said sliding plate, a boss rotatable in said casing,'and a connecting rod pivoted to the piston and passing through the boss.

In testimony whereof we have aifixed our signatures in presence of two witnesses.

ARMAND PEUGEOT. TONY HUBER. HENRI DE LOSTALQT.

Witnesses:

H. G. Coxn, An'romn LAvoIs.

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