US1066168A - Explosion-engine. - Google Patents

Description

Patented July 1, 1913.

La w C. I/wfz/car/L/D CDLUMBI PLANDGRAPH CO. WASHINGTON, D. C.

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LOUISC. VANDERLIP, 0F ELKI-IART, INDIANA.

EXPLOSION-ENGINE.

Speccation of Letters Patent.

ratenteaJu1y1,1913;

Application filed April 21, 1910. Serial No. 556,834.

To all whom t may concern:

Be it known that I, Louis C. VANDERLIP, a citizen of the United States of America, residing at Elkhart, in the county of Elkhart Vand State of Indiana, have invented certain new and useful Improvements in Explosion-Engines, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to explosion engines of the two-cycle type, and Consists in the peculiar construction and arrangement of parts as will be more fully hereinafter described and pointed out inthe claims.

vIn the drawings Figure l is a longitudin al section through an engine embodying my invention; Fig. 2 is a section on line X-X, Fig. l; and Fig. 3 is a section on line Y-Y, Fig. 1.

A is a stationary cylinder provided with two bores, B and C, the bore B being greater in cross-sectional area than the bore C.

D is a reciprocatory cylinder fitted within lthe latter bore, and E is a cylindrical projection upon the cover F positioned within the reciprocatory cylinder and forming a stationary piston. An annular chamber G is formed between the wall of the bore B and the cylindrical projection E, and the length of the latter is slightly less than the depth of the bore B, thereby forming an annular opening I-I serving as a means ofy communication between the chamber G and the interior of the reciprocatory cylinder, as will be more fully hereinafter described. The inlet connection I for the explosive mixture opens into an annular chamber J which is in constant communication with the chamber G by means of ports or passages K.

L are inlet ports or passages formed in the wall of the reciprocatory cylinder adjacent the upper end thereof and adapted to uncover the .annular opening I-I at or near the end of the down stroke of the cylinder E, thereby establishing communication between the interior of the reciprocatory cylinder and the chamber G. The exhaust ports M for the cylinder E are formed in the latter at the lower end thereof and are so positioned as to commence to register with passages N communicating with the annular chamber O slightly before the ports L begin to open the annular opening H.

P is the outlet or exhaust openingk forthe annular chamber O.

The upper end Vof the reciprocatory cylinder terminates in an annular imperforate flange Q forming an auxiliary piston reciprocating within the chamber G and serving as a means for drawing the explosive mixture into and compressing the same in the chamber G.

R is a check valve controlling the inlet connection I, and S are apertures formed in the wall of the cylinder A above the highest point of travel of the auxiliary piston, permitting the free ingress and egress of air to and from that portion of the chamber G above 'the auxiliary piston.

T represents a water, jacket within the stationary piston, and U a water jacketsurrounding the bore C. In order to obtain a better cooling of the engine, the water jackets are connected together, and the inlet V for the Water opens into the jacket U and the outlet W leads from the other jacket.

The connection between the two water jack- The cylindrical projection E iscentrallyVV bored for the greater portion of its len h,

and X is a seat for the usual spark p ug positioned within the'bore at the lower end thereof.

In operation, upon the upstroke of the reciprocatory cylinder, the explosive mixture therein is compressed against the stationary piston E and explosive mixture is drawn into the chamber G by the auxiliary piston.

,The charge within the cylinder D is then the ports M commence to register With the ports N, the ports L uncover the annular opening H, thereby establishing communication between the interior of the cylinder D and the chamber G, and permitting the explosive mixture compressed With-in the latter chamber to fill the interior of the reciprocatory piston. The gases therein are compressed and the cycle again completed.

By positioning the inlet and exhaust ports respectively at opposite ends of the cylinder, a better scavenging of the burnt gases is obt-ained, and commingling of the incoming combustible mixture With the outgoing burnt gases is eectively prevented. Also the arrangement of the Water aclets is such that the reciprocatory cylinder is at all times in contact for substantially its entire length With the Walls of the Water jackets.

What I claim as my invention is:

l. In an explosion engine, the combination with a casing having bores of different diameters, the larger -being positioned above the smaller, a reciprocatory cylinder forming the explosion chamber arranged Within the smaller bore and having an integral annular enlargement at its upper end tting Within the larger bore, a stationary piston projecting Within the latter bore and fitting the reciprocatory cylinder, an inlet comj municating with the larger lbore beyond the inward limit of travel of the annular en-lI largement, said cylinder having exhaustand i inlet passages adjacent the base and the upper end respectively thereof, the inlet passage forming a direct communication bel tween the larger bore and the interior ot the I i cylinder at a predetermined point in the a travel of the latter, and the exhaust passage being positioned to open slightly in advance of the opening of the inlet passage.

tion with a casing having bores of different diameters, a stationary pist-on projecting Within the larger bore and of lesser diameter than the smaller bore, providing a chamber between the Walls of the larger bore andthe stationary piston, an inlet for said chamber, a reciprocatory cylindrical member fitted Within the smaller bore Within which the stationary piston is fitted, said cylindrical member having an annular enlargement at its outer end arranged with said chamber and fitting the larger bore, said enlargement serving to compress the gases in said chamber, the inner Walls of said reciprocatory cylinder serving as the Walls of the explosion chamber, said cylinder having exhaust and inlet ports, the inlet port establishing communication between said chamber and the interior of said cylindrical member at a predetermined point in the travel of the latter.

3. In an explosion engine, the co-mbination with a casing having bores of different diameters, a stationary piston projecting Within the larger bore and of lesser diameter than the smaller bore, providing a chamber betWeen'the Walls of the larger bore and the sta-tionary piston, an inlet for said chamber, a reciprocatory cylindrical member fitted Within the smaller bore Within which the stationary piston is fitted, said cylindrical member having an annular enlargement at its outer end arranged with said chamber and fitting the larger bore, said enlargement serving to compress the gases in said chamber, the inner Walls of said reciprocatory cylinder serving as the Walls of the explosion chamber, said cylinder having exhaust and inlet passages respectively adjacent the base of the explosion chamber and the outer end of said reciprocatory cylinder, the inlet passage establishing communication between said chamber and the interior of said cylinder at a predetermined point in the travel of the latter.

l. In an explosion engine, the combination with a casing having bores of different diameters, a stationary piston projecting centrally Within the larger bore of slightly lesser diameter than the smaller bore and in length slightly less than the larger bore, whereby a chamber intermediate the Walls of the larger bore and said projection is provided, and providing an opening intermediate the inner end of said projection and the smaller bore, between the latter and said chamber, an inlet for said chamber, and a reciprocatory cylindrical member fitted Within the smaller bore and Within Which said stationary pist-on is fitted, said cylindrical member having an annular enlargement at its outer end arranged Within the chamber and fitting the larger bore, said enlargement serving to compress the gases in said chamber, the inner Walls of said reciprocatory cyl- 2. In an explosion engine, the combinainder serving as the Walls of the explosion chamber, and said cylinder having an exhaust passage positioned adjacent the base of the explosion chamber and having an inlet at its outer end adapted at a predetermined point in the travel of said cylinder to register With said opening, establishing communication bet-Ween said chamber and the interior of said cylinder.

5. In an explosion engine, the combination With a casing of a reciprocatory cylindrical member fitted therein and provided adjacent 'its outer end With an' annular projection, a stationary piston carried by the casing and fitting Within the cylindrical member, said stationary piston being constraicted and so arranged in relation to said casing as to provide a chamber between said projection and the inner Walls of the casing Within Which said annular projection is positioned, and an inlet for said chamber, there being-a head at the inner end of said chamber against Which the gases therein are lcompressed by said annular projection upon the inward movement of said cylindrical mem- In testimony whereof I aIiX my signature ber, the latter having inlet and exhaust pasin presence of two witnesses.

saves, the inlet passaofe being positioned to estbablish communicatim between said cham- LOUIS C VANDERLIP ber and the interior of said cylindrical mem- Witnesses: ber at a predetermined point in the outward GUY E. NOLAN, movement of said cylindrical member. WILL D. SOPER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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