US1055531A - Disk valve. - Google Patents

Description

0.3. HENRY 6; L; E. BRANNING.

DISK VALVE.

APPLICATION FILED JUNE 27 1912.

g gl Patented Mar.11,1913.

3 MEETS-SHEET 1.

C. F. HENRY & L. E. BRANNING.

DISK VALVE- APPLICATION FILED JUNE 27,1912.

j g g ggl D Patented Mar. 11, 1913.

3SHEETSSHEET 2.

O F. HENRY & L. B. BRANNING.

DISK VALVE,

APPLIOATIONI'ILED 1112111211912.

j ggg ggl Patented. Mali 11, 1913.

3SHEETS-SHBET 3.

onijrnn s reens PATENT CHARLES FREMQNT HENRY AND LUCIAN EMMERY BRANNING, OF BGRV ISLAND,

ALBERTA, CANADA.

DISK VALVE.

Specification of Letters Patent.

Patented Mar. l i 933.

Application filed June 27, 1912. Serial No. 706,302.

cable to steam. and other such engines and the object of the invention is to do away with the various slide and rocker valves, valve gears and eccentrics now in common use on engines and substitute therefor a re- ,volving valve whose motion is continuous,

thus causing no jerks or jars, and supplying ''one which may be run at a. very high rate of speed without danger of displacement of the valve or injury to it.

A further object of the invention is to provide a steam tight valve which can be easily operated to reverse the engine and one in which the operator can regulate the lead and cushion of the stroke withoutresetting the valve or removing the steam chest cover.

Referring now to the drawings-Figure 1 represents a side elevation of the device. Fig. 2 a plan view of the same. Fig. 3' is an enlarged horizontal sectional view through the cylinder and the adjoining parts, the section being taken in the plane denoted by the line X-X Fig. 1. Fig. 4 is an enlarged vertical sectional View through the device the section being taken in the plane denoted by the line Y-Y Fig. 1. Fig.' 5 is a rear view of the plate and rotary valve as they appear when detached from the cylinder. Fig. 6 e perspective view of the valve. Fig. 7 is a side elevation of the disk detached. Fig. 8 is a side elevetionof the cylinder wall showing the location of the port holes therein.

in the drawings like characters of reference indicate corresponding parts in each figure. 1 represents a suitable base plate supporting an engine cylinder 2 and a set or" been ing blocks 3 and 4, in turn carrying a cross shaft 5. The shaft is supplied with a wheel 6 and :1 bevel gear 7 the wheel b'eing supplied with an eccentric pin 8.

i 9 is e. crank connecting the pin 8 with a piston rod 10 secured to a piston 11 which operates in. the cylinder. Adjoining the side of the cylinder is formed a steam chember 12 bounded by the wall 2 of the cylin .T he interior of the shaft is threaded to receive an adjgusting screw .20 which bears against the wall 2 of the cylinder. A lock nut 21 is supplied on the screw whereby it can be fastened in any set position.

22 is a bevel gear fixed. on the outer end of the shaft 19 and of the same size as the bevel gear 7 already referred to. 23 is a counter shaft mounted in suitable brackets 24 and carrying smaller bevel wheels 25 and 26 which mesh continuously with the beveled gears T and 22 already referred to.

The inner end of the shaft 19 rides in a pocket 19 formed in the wall 2 of the cylinder, and if desired ball bearings can be placed at this point to insure that the shaft will rotate freely.

The disk vslve 18 is supplied with elongated port holes 27 and 28, the port hole 27 passing directly through the valve from side to side, iviule the port hole 28 passes from,

the inner face of the valve. to the circumference thereof, the opening at the circumference being kept over toward the inner face of said valve.

The inner face of the plate 17 is hollowed,

out to provide a chamber at :29 which is inclosed by the face of the valve ands pertition 30 which is fitted within the steziin chamber and is rounded out centrally to receive the disk which rotates partially Expansion rings 31 are placed.

within it. around the circumference of the disk wher. it engages with the partition. It is here pointed out that-the port hole 27 connects with the chamber 29 while the port hole 28 eiiters the steam chamber 12, having no connection whatever with the chamber 29.'

32 is the live steam feed pipe which admits steam to the engine; Thispipe is connected directly through an opening 33 snpplied in the top of the partition with the chamber 29. I

34- is a reversing disk centered on the inner end of the shaft 19 adjoining ironiediately between the inner face or the valve 18 and the side 2 of the cylinder. The disk sin-.13

lever, setthe disk in any desired position.

In order to understand the operation of the device we will'now describe it, assuming at the outset that the lever lOzis in the up right position and that the disk 34: is in the position as indicated in the'drawing with the port holes and as above and below the center or as best shown in Fig. 7. iissuming further that-the engine is at what might be termed'rear center, and that the valve 18 is set on the shaft sotha-t the intake port is 'directly'opposite'the port"37 in'the wall 2 although it is to be remembered that the disk intervenes between these points. Upon the operator turning the engine off center the valve will turn slightly as it is forced to ro-.

tats on acount of the beveled gears. Steam is next turned on and the operator moves the lever forward or backward to either of its extreme positions. The port hole 2'? of the valve gradually becomes connected with the opening 37 in the cylinder wall through one or other of the ports 35 and 36 in the dish (depending upon the direction it is turned by the lever). This allows steam toenter the cylinder at-the rear end, consequently, the piston is driven to. the front end. Asthis motion takes place the valve 18 is also rotated half way around so that the opening 27 is connected withsthe opening 38 through either one or, other of the openings 35 and 35 in the disk. 7 This admits steam to the front end of the cylinder.; Simultane' ously the exhaust port 28 becomes connected with the entrance opening in the cylinder which is at the opposite end to that taking steam. ll hen the reverse disk 34-. stands in the extreme positions a large quantity of steam is admitted to the cylinder and there is then but little lead and cushion to the stroke. Shifting: the reverse disk from either of the extreme positions to the cent-ral' posit-ion admits a smaller amount of steam to the cylinder and consequently increases the lead and cushion of the stroke. Should the attendant wish to reverse his engine when the lever is over toward the extreme left position he shifts it over past the central posh tion toward the extreme right position whicl'i roclts the disk 54- on the shaft 19 and throws the port 36 of the disk 34. into registration with the intake ports 27 and 37 to admit steam behind the piston 11, and if the lever should stand in the extremeright position he can reverse it by simply forcing the lever to the extreme left position, which throws theport 36 into registration with the port 38 t6 admit steam therethrough to the front of the piston ll. The set screw 20 allows one to adjust the pressure of the valve 18 against the face of the reversing disk.

What we claim as our invention is 1. The combination with a cylinder having suitable inlet and outlet ports therein, and a reciprocating piston within the cylinder, of a steam chamber to the side of the cylindcrand communicating with the same through the ports aforesaid, a partition within the chamber bearing against the outer wall thereof, said wall being cut awayto form a second chamber between the partition and the wall, a supply pipe communicating: with the second chamber, and an eX- g haust pipe with the first chamber, a rotatably mounted disk valve entering both chambers and passing through the partition, said valve being supplied with inlet and exhaust ports,

one of said ports passing completely through 9D the valve from face to face and communicating with the second chamber, and the other of said ports passing from the inner face of the valve to the circumference thereof, at,

which point it opens to the first chamber, a

shift-able disk interposed between the inner face of the valve and the cylinder, said disk being supplied with openings designed in the rotation of the valve to connect the ports in the valve with those in the cylinder, means for rotating the valve one revolution for each reciprocation of the piston, and a lever connected through a suitable link with the disk, as and for the purpose specified.

2. The combination with a cylinder having suitable inlet and, outlet ports therein, and reciprocating piston-within the cylinder, of a steam chamber located to the side of the cylinder and communicating with the interior thereof through the ports aforesa1d,-110

a partition passing across the chamber and bearing against the outer wall thereof, which wall has its inner face cut away to form a second chambe between the wall and the partitioman inlet pipe communicating with s15 the second chamber, an exhaust pipecommunicating with the outlet chamber, a rotatable shaft passing across the chambers and mounted in the side of the cylinder and the aforesaid wall of the chamber, a disk valve fixed on the shaft and entering both chambers, which valve passes through the partition which is cut away to receive \it and make a steam tight joint with the circumference thereof, and is further supplied with inlet and exhaust ports, the inlet port passing from the inner face thereof to the outer, at which point it communicates. with the second chamber, and the exhaust port-passing from the inner face thereof to the circumference, at which point it communicates through a suitable rod with the disk, as and 10 with the first chamber, a disk centered on for the purpose specified.

the shaft and interposed between the valve Signed at Bow Island this ninth day of and the cylinder, said disk being supplied December 1911.

.1 with openings designed to connect the valve CHARLES FREMONT HENRY.

ports with those of the cylinder in the rota- LU (HAN EMMERY BRANNING. tion of the valve, means for rotating the t In the presence of shaft one revolution for each reciprocation C. H. BELL,

of the piston, and a pivoted lever connected E. C. LUDTKE.

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