US1547016A - Rotary valve - Google Patents

Description

July 2l, 1925.

C. J. IBERTHEL ROTARY VALVE Fired 'March 1v. 1922 2 Sheets-Sheet l l A TTORNE Y.

July 21, 1925. l

'C. J. BERTHEL ROTARY VALVE' Filed March 17. 1922 2 Sheets-Sheet 2 j A9l a /7/ l i f@I l ATTORNEY.

' Patented `luly 21, 1925..

UNrrED .t'IUVrES4 PATENT, OFFICE.

l marais CHARLES J'. BERTHFL, 0F CANTON, OHIO.

ROTARY VALVE.

` Application filed March 17, 1922. Serial No. 544,503.

To all whom t may conce/rfa:

Be it known that l, GHARLEs J. BERTHEL,

a citizen of the United States, residing at Canton, in the county of Stark and State of Qhio, have invented `certain new and useful Improvements in Rotary Valves, of which the following is a specification.

This invention relates to internal combustion motors, and has forv one of its objects to provide `a device of this character of improvedl construction and increased simplic ity, and eiliciency.

Another object of the invention is to pro vide `a device of this character including a combined cylinder and valve which may be inserted or removed without disturbing the piston and other parts.

Another object of the invention is to pro` vide a device of this character constructed without spring controlledvalves, and therefore operates practically noiseless.

With these and other objects in view the invention consists in certain novel fea-tures of construction as hereinafter shown and i described `and then specifically pointed out- Fig. 5 is a vertical section of the combined cylinder and reciprocating valve in section on the line 5 5 of Figure 3, looking in the u direction of the arrow above the ligure, and

Fig. 6 is asimilar viewlooking in the direction of the arrow below the Fig. 3.

Fig. 7 is an enlarged sectional detail illustrating the Vmanner of supplying the lubricant to the moving parts.

rlhe improved motor comprises an enclosing shell or casing 10 having an encircling cooling water space or chamber 11, and extended at one end to form the crank case, a portion of which is shown at 12, and with an annular seat 13 at the upper end. AA

head member, represented as a whole at 14, bears upon the upper end of the shell and nels 18 over the seat 13, thus forming a closureto the seat.

The head memberrlvcontains the usual spark plug represented conventionally at 15.M

Disposed within the shell Vand fittingthe `same gas ti glit, is a combined rotative valve vand piston 16, extending'attheuppereiid into a cavity within thehead member 1/1 and with an encircling rib 17 engagingfilil the channel 13. By this means the member A16 is rotatively suspended `within thelshell 10, and may be removed therefrom rljfdes posited therein when the head Ymembenlfl" ism Formed in theinner wall of member'l and at diainetrically opposite point "are guide channels, each consisting of ap 18 extending in parallel relation toftl gitudinal axis of the member 16 an amper?" tion 19 directed obliquely to the longitudinal airis ofthe member 16.

- The upper ends of the longitudinally directed portions 18 of the guide" channels valve, to enable the piston and its rollers to be inserted and removed. i "f The piston of the improved motor is1rep resented as a whole at 20 and includes wan open through the upper end of th'e cylinlder'' intermediate transverse partition" ioiffdiae' phragm 21 whereby an explosionfchamber 22 is produced and with bearings 23"forlthe connecting rod of the motor.

Mounted on the piston near its'ppeir end y 2/1 operating constantly in the Aguid 19. The intake for the explosive"gasA is located at diametrically opposite pointslarerollers* at near the upper part of?the""sliell10,V while the exhaust port 26 is locatedfi'ntermediate the shell, preferably*diametrically opposite to the intake port 25`f'ff" The combined valve and Icylinder `rnfeinber 23 is provided with an intake `port"` 2f7 and an exhaust 28 at different pointscircumfeny entially and likewise at *diiierenupoiiits longitudinally of the member V116', stlliat when the member 16 is disposed lin"`oi`i"efpo`si tion the intake port 26 offtheshell110` willm register with the intake port12moffthe valve member, and when the nfi'eiiiber 1]6 ismdisposed iii another position f'tlieVen-hauzst port 28 of the valve member will registerwith the exhaust port 26 of `th`e"slie`l`l. fl The guide channels 18-19 are so arranged and proportioned, that when the piston is at the upper enol of its stroke, or located as shown in F ig. 1, the rollers 24 will be in the upper or longitudinally directed portions 18 of the guide channels and will dispose the port 27 in registering relation to the intake port 25 and likewise' dispose the discharge port 28 of the member 16 spaced from the efhaust port 26 or with the exhaust cut o By this arrangement while the piston is moving through the first part of its up or compression stroke the rollers 24 travel in the short oblique portions 19 of the guide.

vchannels and quickly rotate the valve 16 and cut ofil the intake 25 and the exhaust 26.

During the remainder of the compression. stroke the rollers 24 travel in the longitudinal portions 18 of the guide channels and,l hold both parts closed to enable the piston to produce. the requisite compression of the gas in the cylinder. At the first part of the down or power stroke the ex plosion occurs, and the rollers 24 traveling in the horizontal portion 18 of the guide channels hold the sleeve valve stationary with the intake and exhaust both cut off.

-During this. portion of the stroke the expansion occurs and the piston is forced downwardly.

then the rollers 24 reach the inclined or oblique portions 1 9` of the guidev channels, thesleeve valve is suddenly rotated to register the exhaust ports 26-28- and 28', during the time the rollers are in the oblique portions of the channels, and at` the same time.

open the intake to permit a fresh charge of gas to enter the cylinder. The period of timeduring which the exhaust is open is so short and the oscillation of the valve so rapid, that the inflow of fresh gas does not. affect the action. At the first. part. of the return stroke, or while the rollers24are passing upwardly through the oblique portions 19 of the guide channels, the intake and exhaust are closed; and the'continued movement of the piston again compresses the gas and the explosion takes place at theend of the compression stroke, and the operation is repeated.

The piston 2O isprovided with the usual packing rings 29, as shown.

Formedthrough the head member 14 is an oil duct 3() leading to the upper face of the rib 1 7to convey the lubricant to themember 16 and with a branch duct 3() communieating with anl opening at the upper end of the channels 18, to convey the lubricant to the piston and the valve.4 Each side of the motor may. be provided with a set of the oil ducts, if required.

The improved device is simple in construction, can be inexpensively manufactured and of any size required, andgcontaining few parts, and all the moving parts can be machined at small expense to render the joints gas tight.

The preferred embodiment of the invention is disclosed in the drawings and set forth in the speciiication, but it will be understood that modifications within the scope of the. claimed invention may be made in the construction without departing from the principle of the. invention or sacrificing any of its advantages.

Having thus described the invention what isclaimed as new is 1. In an internal'y combustion motor, a cylindrical shell having. intake and exhaust ports spaced longitudinally .of the shell a distance. equal to the stroke of the` piston, a cylindrical valye mounted ifor oscillation within the shell and having ports. which register respectively with said intake and exhaust. ports when the valve is in one position, said. valve having inwardly opening guide channels with the major portion of each channel extending longitudinally of the valve and communicating minor portions extending obliquely to the major portions, a piston within the valve and movable longitudinally of the shell and itsvalve and held from turning therein, and with a port registerable with the exhaust portv when the piston. is in its lower position, and projections carried by the piston and constantly engaging in the guide channels, whereby the movement of the piston operates to hold the valve from oscillation during. the major part of its stroke and rotates it during the minor part. of its stroke.

2. In an internal combustion motor, a cylindrical shell having intake and exhaust ports spaced longitudinally of the shell a .distance equal to thestroke of. the piston, a cylindrical valve. mounted for oscillation within the. shell and having ports which register respectively with said intake and exhaust ports when the .valve is in one position,

a piston within the valve and movable longitudinallyof the shell audits valve and held from turning therein and with a port registerable with the exhaust port when the piston is in its lower. position, and means operative by the movement of the piston for oscillating the valveinone direction at the commencement ofthe compression stroke to hold` the intake and exhaust poorts closed during the compression stroke and the major portion of the power stroke andoscillating the valve in the other direction as the piston approaches the terminal of the power stroke,

to rapidly open and close the intake and exhaust ports.

Intestimony whereof, I atlix my signaturev h creto.

CHARLES J. BERTHEL.

Images