US1258524A - Internal-combustion engine. - Google Patents

Description

J. F. BERRY.

INTERNAL CGMBUSTION ENGINE.

APPLICATION FILED Nov. 2, I9I5.

1,258,524. Patented Mar. 5, 1918.

2 SHEETS-SHEET 2.

UNITED STATES uRATENT OFFGE.

JOHN FRANKLN BERRY. OE JEW'IS. IGVIA.

INTERNAL-COMBUSTION ENGINE.

Application filed November 2, 1915.

To Zt whom 1f/moy concern:

Be it known that l. 'ionic FnaxnLiN lnnrzr, a citizen of the United States, residing at Lewis, in the county of Cass and State of Iowa, have invented new and useful Improvements in Iiiternal-Coinbustion Engines, of which the following is a specification.

This invention relates to internal combustion engines and has particular reference to the valve mechanism thereof, the object in view being to produce a valve which may constitute either the intake or the exhaust valve, which valve is of tubular construelion and mounted for reeiprocatory movement in parallel relation to but exteriorly of the combustion Chamber of the engine, operating' to periodically open and close the cylinder port leading to or from the combustion chamber of the engine.

A further object. of the invention is to provide valve of the character referred to eu'ibodying a novel wall construction by means of which it is properly lubricated and cooled, the valve being constantly in communication with the crank case.

lV ith the above and other objects in View, the invention consists in the novel construction` combination and ar angement of parts, as herein described, illustrated and claimed.

In the accompanying drawings Figure 1 is a sectional view taken longitudinally and diametrioally of the cylinder and piston and transversely of the crank shaft.

Fig. 2 is a cross section on the line Q-Q of Fig. 1.

Fig. 3 is an enlarged fragmentary longitudinalsection through one of the valves and the adjacent portion of t-he cylinder.

Fig. 4 is a side elevation of the valve.

Referring to the drawings A designates generally the cylinder of an internal cornbustion engine and B the crank case thereof. The cylinder uill being water jacketed as shown at 1 and the cylinder head being also uiter jacketed as indicated at 2.

The crank oase B is provided with the usual supporting lugs 3 and a horizontally extending partition l which divides the crank case into an upper chamber 5 and a lower chamber G the latter constituting the oil chamber, and the partition e being formed with a pocket or sink 7 for each cylinder, the pocket 7 being designed to conspeciicaton of Letters Patent.

liatented Mar. 5, 1918.

serial no. 59,242.

tain oil into which the crank of the respectire cylinder dips for the usual purpose.

8 designates a reciprocatory piston Working in the combustion chamber 9 and coupled hy means of a connecting rod 10 to the crank shaft 11.

Vln carrying out the present invention, the body of the cylii ler which is formed with inlet and exhaust ports 12 and 13, respectively, at diametrically opposite points, is also formed with valve containing cylindrical bores or chambers -rllocatcdexteriorly of the combustion chamber and in parallel relation thereto but out of communication therewith except for the diametrically opposite ports 15 and 1G which are in line with the intake and exhaust ports 12 and 13, respectirely as clearly indicated in Fig. 1.

In each of the valve bores 1li is mounted a reciprocatory tubular valve, 17' designating the intake valve and 1S the exhaust "faire, said Valves being the couiiterpart of nach other. lleoiprocatory motion is imparted to the valves 1T and 18 by means of valve shails 19 and 2O located at opposite sides o the crank shaft 11 and driven thereby through the medium of the gears 21, 22 and 23j said gears being shown as propor tioned to render the engine of the four cycle type, the valve or cam shafts 19 and 20 reyolving at one-half the speed of the crank shaft 11.

Each of the valves 17 and 18 is closed at its outer end by an end wall or head 23 and the inner end thereof is left open as at 211 so that the interior of the tubular valve is in constant communication with the crank case for cooling and lubricating purposes. Adjacent to its outer end each Valve is provided With a passage 25 the length of which is disposed transversely of the tubular valve, the passage 25 being itself formed by a tube 2G extending through the valve and having the opposite extremities thereof united by a fluid tight joint to the opposite side Walls of the valve. rhe valve Wall is also formed with openings 27 shown in the form of perforations of a considerable number extending throughout the major portion of the length and all around the valve Wall, said openings permitting the oily Vapor Within the crank case to pass therethrough and keep the outside surface of the valve Wall and the inner surface of the valve bore perfectly lubricated. ln addition to this the valve body is kept at a uniform temperature corresponding approximately with the' temperature in the crank case thereby pre venting undue expansion olf the valve body and the consequentliability ot the same to bind Within the bore in which it operates 1n order to prevent lealrage around the valve between the ports 12 and 15 and also between the ports 13 and 16, the body or" the cylinder is formed With annular grooves 2S at opposite sides of the line oi said ports and packing rings 29 are seated in said grooves, being held in place therein and encircling and Vcontacting throughout their inner peripheries With the respective Valve body. The valve bores 14, as shown in Fig. l,v :intersect the intake and exhaust ports of the cylinder and the outer end portions ot the valve Werl: across said ports and points of intersection and thereby always have a bearing against the packing rings 29 so as to effectively prevent leakage and loss of compression.

The Valves 17 and 18 are coupled by means of connecting rods 30 to the shafts 19 and 20, said shafts being shown as provided with eccentrics 31 which operate in straps or bearings 32 on the ends ot the rods 30.

It will, of course, be understood. that the shafts 19 and 20 with their eccentrics 31 are set so as to properly time the reciprocatory movements oit the intake and exhaust valves in order that the usual cycles ot operation of the engine may be carried out and the explosive mixture admitted at the 'proper time and the burned gases exhausting at ythe proper time. The construction described does away entirely with the use of puppet Valves and the disadvantages in-r' cident to the use thereoic such as the rapid accumulation of carbon around the valve seats, greatly impairing the efficiency ot the engine; the fvalve openings orports are practically noiseless in their operation as a sliding contact only is obtained, and a maXif mum impulse is obtained by reason of the tact that each charge is confined. directly and only in the combustion chamber and tired when under full compression Where it acts With tull etl'ect directly between the head of the piston and the inside Wall o1 the cylinder head.

laying thus described my invention, 'l claim 1-,-

ln a reeiprocatory internal combustion engine, a cylinder iorined with a cylindrical bore located eXteriorly of the combustion chamber, parallel thereto and intersecting a cylinder port and also in open connnunication With the crank case, in combination with a. tubular z 'eciprocatory valve Working in said bore and in open communication throughout its length with the crank case, and provided with a passage extending transversely through the same and movable into and out ot registry with said cylinder port, the tubular rallye and the bore in Which it Works being both closed atthe upper ends thereof?, said valige being 'formed with lubri- JOHN F ALNKLIN BllBRY.

illituesses (ino. J KUNZE, J. E, HEINBAUGH.

Gopies of this patent may be obtained for five cents each, ay addressing the Commissioner of Patents,

` Washington, D. e."

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