US925318A - Motor. - Google Patents

Description

G. ENRIETTI. MOTOR.

APPLICATION FILED JAN. 29, 1907. 925,31 8.

Patented June 15,;1909.'

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ie it known that l, CAnLolCNnrnr'rr, a uibject ot the King orc ltaly, residing at 33 Yrial/.ica della Borsa., Naples, in the Kingdom ci' italy, industrial, have invented certain new and nselul improvements in Motors ot the rile-s lype` olf .vhich the lollowing is a s!iccil'iriation. i

This invention has reference to eight cylinder internal combustion engines.

The object of the invention is to provide an engine of t` type which will present the maximum of lightness and power in a mininrein oi spr while the hereinafter described l rrangement oi transmission members under -..ie invention lends itself to uniformity of movement with reduction in. weight of the ily-wheel, or even its complete elimination.

To these ends the invention consists in the f novel and innproved constructions which l will now proceed to describe and claim.

lhe motor may have the main shaft arranged at the center' ot the group of clyinders or below the same as may be seen from the accompanying drawings, :in which Figure l represents a vertical diagrammatic section of the motor with the main shal't at the center ot the group of cylinders. F 2 is a diagrammatic view of Fig. l in elevation. Fig. 3 is a view of the motor in elevation, a part of which is in vertical section and shows the constructional details. l ll is a sectional plan view of the motor taken at various heights in order to show the constructional details.

Referring to the construction illustrated in Figs. l to e, the cylinders A A', a, a are arranged one opposite to the other in the same plane. Further cylinders A2, A3 (Fig. shown) are also arranged one Iopposite to tire other in the samemanner as the aforesaid group orn tour cylinders. The two groups of 'our cylinders are then arranged in two parallel planes so as to form a pc lectly balanced and compact group ot eight cylinders. The pistons C of eachpair el op positely arranged cylinders are connected together' by common connecting rods l to which are connected intermediate transmission members N, M which transmit the :movement of said connecting rods F to a longitudinal shaft F, journaled in the casing and to which is connected a lever E through which the power is transmitted from said,

longitudinal shaft to a lever or cross-beam D c 'l r r mounted on a crane: r ot the main shait Specification of Letters Patent.

application filed January 29, 1907.

Patented .Tune 1.5, 1909.

Serial No. 354,776.

which in this case is arranged centrally ol the group ol cylinders. rl`he crank G is sufficient for all the eight cylinders and the explosions take place two by two at every half revolution. Valves O are provided for the cylinders c a and valv es l? for the oppositely arranged cylinders A A/ (Figs. l, 2 and 3). These valves are actuatedby any suitable means and it will be understood that any suitable valve system might be employed.

ln the construction describedl the cylinders being oppositely arranged in pairs, guides are dispensed with as the pistons mutually guide each other. The pistons may be made very thin and ol' light construction, in iact only ol' the thickness required to allow l'or the necessary packing. The cylinders may be considerably shortened to still lessen the total weight ol' the engine to obtain the lull advantage ol' lightness and compactness, while all the parts are compactly grouped and disposed to completely and perl'ectly utilize the available space, the engine taking the least room possible, thereby resulting in eXtreme simplicity, lightness, and accessibility of the parts.

The type with the crank sha'l't situated at the center ol' the apparatus (which arrangement may have rotary cylinders with a iixed shalt) may be employed l or automobiles, and l'or all nautical, aeronautical and industrial uses and `for any other application.

The cylinders may have radiating surfaces l'or air cooling as shown in Fig. 2.

l. An internal combustion engine comprising eight compactly grouped single-acting cylinders oppositely arranged in pairs, and a single crank sha'l't therel'or disposed between and centrally ol said cylinders the different pairs ol' cylinders being placed in parallel planes and the pistons ol' each pair being rigidly connected by means ol' single piston rods, to which are connected transmission members whereby the movements o'll said piston rods are transmitted to the main shaft.

2. An internal combustion engine comprising eight compactly grouped single-acting cylinders oppositely arranged in pairs,

ments oli' said piston rods are transmitted shal't which is arranged centrally of the group of cylinders.

3. An improved explosive engine having eight eompaetly grouped single-acting oylinders opposed two by two to one another on the same aXis and placed one above another with parallel axes, pistons for each pair, pivotally united. transmission members rigidly connecting the pistons of each pair, means pivoted to members at one end, a

to a beam carried by a crank on the main l Cross beam at the other end connecting the four cylinders in one plane and mounted for oscillation, a main shaft, twooranks thereon and a similar connection between one of said cranks and the pistons of the other cylinders.

In testimony whereof I aflix my signature in presence of two witnesses.

CARLO ENRIETTI.

l/Vitnesses:

G. SWANCUI, A. Roser,

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