US1067865A - Valve mechanism for internal-combustion engines. - Google Patents

Description

O. T. GLEVE. VALVE MECHANISM FOR INTERNAL COMBUSTION ENGI Nash Patented-July 22, 1913.

lllll Illll APPLIUA'Tl [ON FILED APR. 24, 1912.

WITNESSES ATTORNEY VALVE MECHANISM FOR INTERNAL-COMBUSTION itndrlvns.

Specification of Letters Patent.

Patented July 22,1913.

Application filed April 24, 1912. Serial No. 692,779.

To all whom it may concern Be it known that I, CLARENCE T. C-Lnvn, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented new and useful Improvements in Valve Mechanism for Internal-Combustion Engines, of which the following is a specification.

The present invention relates to improve ments in internal combustion engines, the object of the invention being to provide a simple and efiective valve mechanism for use with such engines.

In the accompanying drawing, Figure 1 is a vertical section of a portion of an internal combustion engine having my improved valve mechanism applied thereto and shown in an upright position, though this position is not necessary; Fig. 2 is a transverse section on the line 2-2 of Fig. 1; Fig. 3 is a side view of'the valve detached.

Referring to the drawing, 1 indicates the cylinder of an internal combustion engine, having a head 2 and a water acket 3. Near said head is formed a conduit 4: leading to tomary,

a cylindrical valve casing 5, in which can rotate a tubular valve '6. Said valve 6 hasformed on its exterior surface a spiral gear Wheel having teeth 7 engaged by a worm 8 on a shaft 9 connected with the crank shaft of the engine, which connection, being cusis not here shown.

gitudinal movement being limited, at the bottom of said valve casingbv a head 11 of a gas tube 12, the lower end of which is connected with a tube 15 for conducting combustible mixture to the internal combustion engine, said head having a flange 13, by which it is secured to the lower end of the valve casing, and the tubular valve being limited at the upper end by the flange of an exhaust outlet tube 14 secured at the upper end of said valve casing. Said tubular valve is separated into an inlet conduit 16 and an outlet conduitl'l' by means of a partition 18,

which is directed obliquely across the tubular valve in a curved or ogee form, and so that the upper end of said partition 18 the lower end b. a distance approximately equal to the height of the end,

, Said tubular valve is not only rotatable but also movable longitudinally in said valve casing, its lonadjacent to said valve, of the conduit 1 which leads through the wall of the internal combustion cylinder. Through the wall of said tubular valve, on opposite sides of said other, and'approximately at the level of said adjacent end of the conduit 4-, areformed inlet and outlet ports 19, 20, the inlet port 19 communicating with the gas tube 12, and the outlet port20 communicating with the outlet tube 14.

\Vith the above construction it will be seen that, when the tubular valve 6 rotates in the direction shown bythe arrow in Fig. 2 the cylinder is being filled with combustible mixture passing through the gas'tube 12 and the inlet port 19. While the tube rotates through about half a revolution the conduit 4 is closed, and during this time 'compression and explosive combustion take the conduit 1 and the waste gases are expelled from the cylinder through the outlet conduit 17.

The valve does not fit tightly at its ends between the flange 13 of the gas tube 12 and the flange of the exhaust outlet 14, but is spaced slightly therefrom, so as to leave a small annular oil chamber 24 at the top of the tubular valve 6, which chamber communicates by means, of a conduit 26 with a lubricating oil supply pipe 27 having a check valve 28 therein. Once in each revolution of the valve it is moved longitudinally in the valve casing by means of a cam 29 formed on the flange of the inlet tube which engages a cam portion 31 of the lower end of the tubular valve and raises the valve The raising of the valve produces three effects. First, by reason of the sliding engagement of the teeth '7 of the valve with the teeth of theworm 8, it causes the valve to rotate more rapidly at the instant of engageinent of said cam 29 and cam portion 31 than at its regular speed, thus permitting a more rapid opening of the valve, and consequently a more rapid passage of gases from the Combustion chamber. Secondly, the longitudinal movement of the valve distriband its casing. Thirdly, the reciprocating motion of the valve 6, in conjunction with partition, but at the same level as one anplace. The port'20 then comes opposite to j utes the lubricating oil between the Valve a short distance, say, one-eighth of an inch.

the action of the check valve, which pre-. vents backward movement of the oil, causes the valve 6 to act as a pump plunger to 'posi-' tively force the oil down between the valve and easing.

The purpose of the gas tube 12 being extended a considerable height above the head 11 is to form an oil Well 34 in which the lower part of the valve can rotate, the level of the, oil in said oil Well being determined by the height of an escape pipe 86 through the valve casing.

The outer surface of the tubular valve 6 is formed with helical conduits 37 for lubrieating oil, which conduct oil to said well.

I claim 1. In combination with a cylinder of an internal combustion engine having a port, a cylindrical valve casing having in a cylindrical side thereof an opening communi eating with said port, one end of said casing valve therein, and means for producing said longitudinal movement automatically with the rotary movement of the valve.

2. In combination with a cylinder of an internal combustion engine having a port,

a cylindrical valve casing having in a cylindrical side thereof an opening communieating with said port, one end of'said casing communicating with a source of supply'of combustible mixture and the other end he ing open to exhaust, a rotary cylindrical into compartments opening at opposite ends valve in said casing formed with an oblique partition dividing the interior of the valve thereof, and having ports in the respective compartments adapted in the rotation of the valve to register alternately with said opening, means for rotating said valve, means at.

the ends ofasaid valve casing for limiting the longitudinal movement of said valve therein, a pipe for conducting lubricating oil to the interior of the valve casing'near' one end thereof, acheck valve in said pipe,

and means for producing said longitudinal movement automatically with the rotary movement of the valve.

3. In combination with a cylinder of an internal combustion engine havinga port, a cylindrical .yalve casing having in a cylindrica'l side thereof an opening communicating with said port, one end of said casing communicating with a. sou'rceof supply of combustible mixture and the other end be into compartments opening at opposite ends thereof, and having ports in the respective compartments adapted in the rotation of the valve to register alternately with said opening, means for rotating said valve, means at the ends-of said valve casing for limiting the longitudinal movement of said valve therein, a pipe for conducting lubricating oil to the interior of the valve casing near one end thereof, a check valve in said pipe, a gas tube within the valve at the other end thereof and forming with said valve casing an oil well, and means for producing said longitudinal movement automatically with the rotary movement of the valve.

4:- In combination with a cylinder of an internal combustion engine having a port, a cylindrical valve casing having in a cylindrical side thereofan opening communicating with said port, one. end of said casing communicating with a source of supply of combustible mixture and the other end being open to eXhaust,-a rotary cylindrical into compartments opening at opposite ends thereof, and having ports in the respective compartments adapted in the rotation of the valve to register alternately with said opening, means t, for rotating said valve, means at the ends of said valve casing for limiting the longitudinal movement of said valve. therein, a pipe for conducting lubricating oil to'the interior of the valve casing near one end thereof, a check valve in said pipe, a gas tube within the valve at the other end thereof and-forming with said valve casing an'oil Well, said casing having an 7 overflow opening therethrough to limit the height of the lubricating oil in said well, and means for producing said longitudinal movement automatically with the rotary movement of the valve.

5, In combination with .a cylinder of an internal combustion engine having a port, a cylindrical valve casing having in a cylindrical side thereof an opening communicating with said port, one end of'said casing communicating with a source of supply of combustible mixture and the other end being open to exhaust, a rotary cylindrical valve in said casing formed with an oblique partition dividing'the interior of the valve into compartments opening at opposite ends thereof, and having ports in the respective compartments adapted in the rotation ofv the valve to register alternately with said opening, means for rotating said valve, means at the ends of said valve casing for limiting the longitudinal movement of said valve therein, a pipe for conducting lubricating oil the interior of the valve casing near In testimony whereof l have hereunto set one end thereof, a check valve in said pipe,' my hand in the presence of two subscribing the outer surface of the tubular valve being Witnesses.

formed with conduits for lubricating oil, CLARENCE CLEVE. 5 and means for producing said longitudinal Witnesses;

movement automatically with the rotary N.-B.KEAT1NG,

movement of the valve. FRANCIS M. WRIGHT

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