US1154479A - Rotary valve for gas-engines. - Google Patents

Description

' G. B. BRINEY.

ROTARY-VALVE FOR GAS ENGINES.

APPLICATION FILED MAY 14. 1912.

1,154,479. Patented Sept. 21, 1915.

2 SHEETS-SHEET I.

WITNESSES [NVENTQR I v I Allorney G. B. BRINEY.

ROTARY VALVE FOR GAS ENGINES.

APPLICATION FILED MAY 14, 19l2.

Patented Sept. 21, 1915.

2 SHEETS-SHEET 2 R 0 T m V m GEORGE BURTON BRINEY, 0F GREENFIELD, INDIANA.

ROTARY VALVE FOR GAS-ENGINES.

Specification of Letters Patent.

Patented se t; 21, 1915.

Application filed May 14, 1912. Serial No. 697,231.

To all whom it may concern:

Be it known that I, GEORGE BURTON BRINEY, a citizen of the United States, residing at Greenfield, in the county of Hancock and State of Indiana, have invented new and usefiil Improvements in Rotary Valves for Gas-Engines, of which the following is a specification.

This invention relates to valves for an internal combustion engine, and more specifically to a rotating valve whereby the engine will be improved and simplified by dispensing with all spring actuated valves and tripping mechanism usually employed for controlling the admission and exhaust ports.

The primary object of the present invention is to construct a valve of the character described which is to be used on a fourcycle engine, or a gas engine having its cylinders arranged in pairs, whereby one valve may be used for admitting. the intake into each of the pair's of cylinders andthe other to regulate the exhaust of each of the pairs of cylinders.

A further object of this invention is to construct a valve of the before mentioned type which may be easily and readily attached to or detached from the crank shaft and removed from the engine casing and one whereby the crank shaft and the valve may be lubricated from one predetermined point.

Other objects will appear hereinafter as the description continues.

With the above and other objects in view this invention consists of the novel construction, combination, formation and arrangement of parts as will be hereinafter more fully described, claimed and illustrated in the accompanying drawings, in which Figure 1 is a side elevation of a four-cycle internal combustion engine having portions of the casings broken away to clearly illustrate the connection between the valve shaft and the crank shaft of theengine. Fig. 2 is a vertical transverse section taken through one of the combustion chambers illustrating both the intake and exhaust valves in section and the intake valve shaft and casing in section, and Fig. 3 is a horizontal section taken through the upper end of the cylinders and valve casings.

Referring now more particularly to the drawings, wherein a specific embodiment of my invention is illustrated, the numeral 10 indicates a casing having a pair of cylinders mounted therein, which casing is mounted upon a suitable crank shaft casing 11. Mounted for reciprocation in each of the cylinders is a piston 12 which is connected to and adapted to operate a piston rod 13 which is connected to the crank shaft let in the usual and well known manner.

Mounted on each side ofthe twin cylinder casing 10 are valve casings 15 each having mounted for rotation therein my improved valve 16. These rotating valves 16 are mounted upon the vertically extending shafts 17 which are operated by the crank shaft 14 as will be hereinafter described.

Mounted longitudinally within the crank casing 11 is a pair of parallel shafts 18 one of these shafts having mounted thereon a large gear 19 which meshes with a small gear 20 mounted upon the shaft 14. A smaller gear 21 is mounted adjacent the large gear 19 and is adapted to mesh with a similar gear 22 mounted on the other shaft 18. By these series of gears the shafts 18 will be rotated in unison with the crank shaft-14. Mounted at diflerent intervals on each of the shafts 18 are vertically disposed worm gears 23 which are adapted to mesh with horizontally arranged gear wheels 21 mounted on the lower extremity of each of the vertically extending valve shafts 17.

The before mentioned gearing comprises means whereby the said valves may be rotated but it is to be understood that any preferred means may be used and the same is to be geared to regulate the timing of the intake and exhaust ports in the usual and well known way.

Each of the valves 16 is approximately an inverted cup having the lower end open and its upper end keyed as at 25 to the end of the shaft 17. Each of these valves is also provided with an opening 26 through which the gas is supplied to the cylinders and exhausted therefrom in the usual manner. The valves 16 are also provided with packing rings to eliminate any possible escape of the gases. mounted in each of the valve casings 15 and so arranged that if the valve should become worn or broken for any reasons whatever the cap may be easily removed and the valve removed from the valve stem and a new one inserted in its place. The valve shaft 17 is nate any possible friction upon the valve and this means consists of bushin 28 which mounted within the casing an the upper- A screw-threaded, cap. 27 isend of the shaft 17 is provided with a flange 29 which rests upon the upperend of bushing 28 and a nut 30 is screwed upon the lower extremity of the said shaft which prevents any upward movement of the shaft and also firmly holds the gear 24 in its proper position.

To lubricate the valve and the valve shaft 17 I provide an opening 31 in the upper end of each of the valve casings which communicates with a recess 32 formed around the upper extremity of the said valve which will hold the desired amount of oil and supply the same to the valve and the upperend of each of the valves is provided with a recess to catch the overflow of the oil and direct the same through a vertically extending aperture 33 formed in the valve shaft 17. The oil is supplied to the bushings through the openings 34 which are communicant with the aperture 33, upon lubricating the bushings, the .oil is then directed to the lower extremity of the shaft into the bottom of the crank casing 11.

It is obvious that when the gas is admitted through the intake pipe 35 it is directed to the valve mounted within said pipe and upon the reciprocation of said piston the gases will be admitted into the combustion chamber for explosion at the desired intervals and the gearing being so geared to permit the exhaust gases to exhaust into the atmosphere through the exhaust pipe 36 in the usual way. The piston casing and the valve casing are each provided with water jackets, to insure good cooling to the valves and the pistons in the usual and well known manner. 7

While I have thus shown and described the valve and its operation with considerable exactness, it will be understood that this is only an embodiment of the principles underlying the invention which may be practised or applied in a number of ways without departing from the spirit and scope'of the present invention.

Having thusfully described my invention, what I claim as new and desire to se c'ureby Letters Patent, is

1. In an engine including a working cylinder, a piston reciprocable in the cylinder, a crank shaft operable by the piston and valves respectively controlling the inlet and exhaust of fuel into and from the cylinder, each of said valves including an apertured shaft, a valve head supported by the shaft, means for driving the shaft from said crank shaft, and means coacting with the aperture of each valve shaft for lubricating the valve, its adjuncts and said crank shaft.

2. In an engine including a working cylinder, a piston reciprocable in the cylinder, a crank shaft operable by the piston and valves respectively controlling the inlet and exhaust of fuel into and from the cylinder, each of said valves including an apertured shaft, a valve head supported by the shaft, means for driving the shaft from said crank shaft, means for supporting each Valve shaft to eliminate friction upon the valves, and means coacting with the aperture of each valve shaft for lubricating the valve, its adjuncts and said crank shaft.

3. In an engine including a working cylinder, a piston reciprocable in the cylinder, a crank shaft operable by the piston and valves respectively controlling the inlet and exhaust of fuel into and from the cylinder, each of said valves including an apertured shaft,-a valve head supported by the shaft, means for driving the shaft from said crank shaft, and a casing for each valve having openings formed therein, the upper face of each valve being provided with a recess communicating with respective openings for the lubrication of the valve, its adjuncts and said crank shaft.

4. In an engine including a working cylinder, a piston reciprocable in the cylinder, a crank shaft operable by the piston and valves respectively controlling the inlet and exhaust of fuel into and from the cylinder, each of said valves including a shaft provided with a longitudinally extending aperture, a valve casing formed with apertures communicating with the shaft aperture in forming a coacting means for lubricating the bearings of said shaft, and means con necting sa1d valve shafts and said crank shaft for driving each of, the former from the latter. a

5. In an engine, a working cylinder, a piston reciprocable in the cylinder, a crank shaft operable by the piston, valve casings adjacent the cylinder and in communication therewith, an apertured shaft mounted in each casing, bushings supporting each shaft, an inverted cup valve carried by each shaft to control communications between the casings and the cylinder, an aperture being formed in each casing to communicate with the aperture of the valve shaft in conducting a lubricating agent to each of the bushings and in directing the surplus to said crank shaft, and drive means between each of the valve shafts and said crank shaft.

GEORGE BURTON BRINEY. Witnesses:

OSCAR O. BEVER, ORA MYERS.

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