US2262264A

US2262264A - Internal combustion engine

Info

Publication number: US2262264A
Application number: US283606A
Authority: US
Inventors: Amos I Addison; Howard B Cheshire; Leroy E Caveriy
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-07-10
Filing date: 1939-07-10
Publication date: 1941-11-11
Anticipated expiration: 1958-11-11

Description

NOV- 11, 1941 A. l. ADDISON E-rAL 2,252,264

INTERNAL COMIBUSTION ENGINE Filed July 10, 1959 2 Sheets-Sheet 1 I N VE N T0195.

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/T TOR/VEX A. l. ADDISON ETAL 2,262,264

INTERNAL COMBUSTION ENGINE Filed July 10, 1959 Nov. 11, 1941.

2 'sheets-Shen 2 IN VE /V TORS.

' Patented Nev. 11,1941 y UNITED STATE s PATENT I OFFICE rivrEaNsLcoMnUsrIoN ENGINE A'mol I. Addison, Long Beach, Howard B.

Cheshire Long Beach, Calif.

, Wilmington,

and Leroy E. Caveriy,

Application July 10, 1939, Serial No. 283,606 Claims. (CL 12351) posed pistons in air cylinders arranged immediately adjacent the power cylinder.

" Another object of our invention is to provide a novel and e'ective means of reciprocating the opposed pistons in the air cylinders from the pivotally mounted arms, said arms being actuated by the power pistons.

Still another object of our invention is to provide a novel 'scavenging means for each power cylinder, consisting of pairs o1' air cylinders, each pair o! cylinders having a common compression chamber.

A feature of our invention resides in the novell means whereby the volume of the air compression chamber may be easily and effectively altered to change-the pressure of the compressed air to suit various operating conditions of the engine. l

Other objects, advantages and features of invention may appear from the accompanying drawings, the subjoined detailed description, and

the appended claims.

In the drawings:

gine.

Figure 2 is a sectional view taken on line 2-2 o! Figure 1.

Referring more particularly tothe drawings,

. Figure 1 is a vertical,I sectional view o! our enour engine comprises a `frame I, in which a crank shaft 2 is journaled. The crank shaft is provided with a separate throw for each piston in the engine, and we have here disclosed a single cylinder with two pistons and, therefore, the crank shaft is'provided with two throws. A cylinder 3 is iixedly mounted in the Vupper part of the frame I`, and is arranged substantially as shown. A pair of pistons l, i are mounted in the cylinder 3 and these pistons move simultaneously in the cylinder-that is, they are of the usual opposed A pair oi rocker arms S, l are pivotaily journaledinthe frame I, theupper ends of the arms beingconnectedtothepistonslandibymeans ot the connecting

rods

3, 3 respectively. The iowerendsoitherockerarmsand'l areconnected to the throws of the crankshaft 2 through the pitmans III and II, respectively. The cylinder 3 may be e. separate part or it may` be integrally cast with the frame I or the cylinder assembly. We have here shown the cylinder 3 as separate from the water jacket I2.

Our engine is here shown as the Diesel type.

Howeven an ignition type of engine may also be used and include substantially the same construction. For the Diesel type. the usual injection nozzle I3 extends into the cylinder 3 between the pistons l and 5. The usual pressure pump Il compresses the fuel for the purpose of injecting this fuel into the cylinder on the compression stroke, all of which is usual and weilknown. For the purpose of scavenging the cylinder 3, we -provide an opposed piston air compressor adjacent the cylinder 3. In placing the compressor close to the cylinder with consequent short circuits, a greater eiliciency is obtained ldueto the fact that the heat of compression oi the air is conserved. Furthermore. in so positioning the compressor, the drive for the pistons is very effective, and also simple and compact, as will` be subsequently described.

The compresser I5 consists of a pair of cylinders I6 and I1. These cylinders may be integrally cast with the water jacket I2, or may be separate and attached thereto, and are arranged immediately adjacent the cylinder 3. The cylinders I6 and I1 are in the same vertical plane as the rocker arms i and 1, and are inclined at an angle, as shown in Figure 1. The'pistons I8 and I9 are mounted in the cylinders Il and I1 respectively, and these pistons are reciprocated through links 20 and 2I`, which are pivotally attached to said pistons and to the rocker arms 6 and 1, as shown in Figure 1. The links 20 and 2I are connected to' the arms 6 and 1 below the pivot point oi said arms, thereby causing the pistons I8 and I9 to move upwardly on the compression stroke, as the pistons 4 and 5 are moving outwardly on the power stroke. The cylinders I6 and I1 are provided with a common oompression chamber 22, which is immediately adjacent the cylinder 3, and the dividing wall oi' this compression chamber may consist of a part of the wall oi the water jacket I2. scavenging ports 23 and 24 extend from the compression under pressure into the cylinder 3, thus clearing this' cylinder of the burnt gases. Within the compression chamber 22 there is an unobstructed space around the mouth portions ci the ports 2l and 2l, allowing the compression-heated air to pass directly through them without reduction in temperature. l

If it is the desire to raise the compression in the compresser, blocks 25 can be placed in the compression chamber 22, and these blocks are held in position by the bolt 26. The blocks reduce the volumetric capacity of the compression chamber and thus the compression is increased.l

is preferably of the type having a fabric or me' tallic nlter pad,l which is usual and well-known.

Having described our invention, we claim:

1. Incombination with an engine, including a frame, a-cylinder, a pair of opposed pistonsin the cylinder. a pair of rocker arms journaled in the frame. and drive means extending from the pistons to the rocker arms, of lan opposed piston air compresser arranged immediately adiacent the power cylinder. said compresser comprising a pair of cylinders, a piston in each cylinder, and a driving link extending from each piston to a rocken arm, whereby said pistonsl are recipro cated, said air compresser having a compression chamber common to both o! said cylinders, and compression pressure adjusting blocks removably mounted in the compression chamber'.

2. In combination with an engine, including a frame, a horizontal power cylinder, a pair of opposed pistons in the cylinder, a pair of rocker arms iournaled in the frame, and drive means extending from' the pistons tothe rocker' arms. ofan opposed piston air compresser arranged immediately adjacent the power cylinder, said rectly through said water jacket into the power cylinder, and a driving link connecting each of the. 4pisirins in the air compresser to a rocker arm, whereby the pistons in the compresser are reciprocated.

3. In. combination with an engine, includinga frame. a horizontal power cylinder, a pair of opposed pistons in the cylinder, a pair of rockerv arms icurnaied in the frame, and drive means extending from the pistons to the rocker arms, of an opposed piston air compresser arranged immediately adjacent the power cylinder, said compresser being integrally formed with the water jacket of the power cylinder, said com -rocker arm, whereby the pistons in the compresser are reciprocated, and compression pressure adjusting blocks removably mounted in the compression chamber.

4. In an-engine, a frame, a power cylinder mounted on said frame, a pair or opposed plstons in said cylinder, an opposed'piston air compressor having a compression chamber in controlled communication with the cylinders oi* said opposed pistons, said compression chamber havingl adjusting blocks therein to vary its capacity, and air compression means operated by the engine to produce in said air compression chamber the air pressures required :or scavenging and ignition purposes.

5. In an engine. a frame. a power cylindermounted on said frame, a pair o! opposed piaf tons in said cylinder, an opposed piston air com'- pressor having a compression chamber in controlledl communication with cylinders of said opposed pistons, said compression chamber havina adjusting blocks therein to vary its capacity,

compresser i being integrally formed with the power cylinder, a piston in each cylinder, a com pression chamber common to both cylinders, a

' portion o! the'wall o! said compression chamber l being formed by said water Jacket said air com'- presser having a pair of scavenging DOrts extending from the common compression chamber diand air compression means operated by the eiigine to produce in said air compression chamber the air pressures required :or scavenging and ignition purposes. there a compression block in` each of opposite end portions oi said chamber, and a threaded bolt connecting said blocks for adjustingV them toward and away from eachother. t AMOS I. ADDISON.

HOWARDB. CHESHIRE. LEROY E. CAVERLY.