US1277626A - Gas-turbine. - Google Patents

Description

R. MILKE.

GAS TURBINE.

' APPLICATION man FEB. 20, um.

7 31 mm oz M45766 Patented Sept. 3, 1918.

2 SHEETS-SHEET l R. MILKE.

GAS TURBINE.

APPLICATION FILED FEB. 20, 1911.

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Patented Sept. 3, 1918.

2 SHEETS-SHEET 2- TED STATES GAS-TURBINE.

' 1 all whom it may concern Be it known that I, 'REINHOLD MILKE, a citizen of the United States, residing at San Francisco, in the county of San Francisco, State of California, have invented certain new and useful Improvements in Gas-Turbines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap'pertains to make and use the same. I

This invention relates to internal combustion engines and has special reference to a gas turbine. Y

, One important object of the invention is to provide an improved simplified general construction of a device of this character.

A second important object of the invention is to provide an improved-means for controlling the flow of a combustible mix ture to an explosion chamber used in connection with a-device of'this character.

. A third important object of the invention is the provlsion of an'improved form of feeding valve for use between the storage chamber for the compressed mixture and the explosion chamber in a device of this description. v

With the above and other objects in view, as will be hereinafter apparent the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawing and specifically claimed.

In the accompanyin drawing, like characters of reference indicate like parts in the several views, and

Figure 1 1s a vertlcal median section through this invention. c

Fig. 2 is a section on the line 22 of Fig. 1.

Fig. 3 is a section on the line 33 of Fig. 1.

Fig. 4 is anenlarged detail section on the line 44 of Fig. 1.

Fig. 5 is an enlarged detail section on the line 55 of Fig. 1.

Fig. 6 is an elevation of the left hand end p0rti0n7of the structure shown in Fig. 1.

Fig. looking to the left.

Fig. 8 is a section on line 88 of Fig. 2, lookin to the left.

In t e embodiment of the invention herein illustrated there has been provided a casing is a section on line 7.7 ofFig. 1,

Specification of Letters Patent.

Patented Sept. 3, 1918 Application filed February 20,1917. Serial No. 149,878. i

10 and on this casing 10 are located radially arranged cylinders 11, there being preferably four of these cylinders. These cy1inders form compression cylinders and in each of the cylinders is a piston 12 which reciprocates in the cylinders and alternately covers and uncovers an intake port 13.

J onrnaled in the casing 10 is a drive shaft 14 and fixed upon this drive shaft is a cam 15 preferably elliptical in contour and having a T-shaped slot 16in its peripheral edge. In the broad portion of the slot 16 are located the heads 17 of piston rods'18, the stems of the rods passing out of the slot through the narrow portion of the same.

These heads 17 are bearings 18 so that the heads may move freely in the slot 16.

Each of the cylinders 11 is provided in its headwith a chamber 19 which communicates with the body of the cylinder through a port20 controlled by a pocket valve 21 tive stem 22. Now it will be noted thatby;

means of the adjustment of the cap 24 the attention of the respective spring 25.may be varied at will so as to exerta greater or less degree of pressure on the endof the stem 22 preferably circular V in contour and are provlded with suitable ball and thus hold the valve 21 in position with a greater or less force. In the operation of this part of the device it will be observed that as the shaft 14 ro-' 'tates the cam 15 will also rotate and this will effect reciprocation of the pistons 12. As these pistons move inward the valve 21will close, the port 20 and .a partial vacuum will be forced in each of the cylinders 11. As soon as the respective piston uncovers the port 13, this port bein connected to a suitable carbureter, (not hown) the explosive mixture will rush in through the port and fill the cylinder. The piston 12 in each cyl cei-ving chamber 26 for the compressed mixture and this chamber communicates with the several chamber s19'through ports 27 so that as the successive charges are received in the chambers 19 these compressed charges I will pass out of the chambers 26 through the ports 27 and into the receivin chamber 26.

' Inthe casingis a turbine w eel compartm'ent 28 wherein is located a turbine wheel 29 which is fixed on the shaft 14 and is provided with peripheral blades 30. Between a the chamber 26 and th'ecompartment 28 are located a series of pairs of valve casings. 31

each of which communicate through a port 32, opening into the side of the casing, with the chamber 26. Leading :Erom the end of each of the casings 31 is a port. 33 which communicates with a small chamber 34, each chamber 34 forming a combustion chamber for two of the casings 31. Leading from the ,chamber 34 is a nozzle 35 which delivers the gases of combustion to' the blades 30 as clearly seen in Fig. 1. Revolubly mounted concentric of the axis of each of the casings 31 is a prismatic valve 36, the shaft of the valve extending through v of the respective casing 31.

Slidable radially of'each casing 36 is an abutment 39 which moves inguides 40, bein constantly pressed inward by means '0 springs 41." The inner edges of these abutments 39 contact continuously with the valves 36 so that'they form a cut-off for the chamber within the casing 31, dividing the chamber into two parts. The outlet ports 33 of the casings 31 are located immediately adjacent the abutments 39 at the sides thereof toward which. the valve moves in normal rotation. The said abutments thus serve to clear the successive valve spaces of theirv fuel vapor contents forcing the fuel vapor into the combustion chambers by ,closing off the valve spaces as the valves rotate, and preventing passage of the exploded Vapor back into the valve casing, whereby the whole force of the explosions is exerted through the-flared months 35. Fig. 7 shows more clearly the relation of the parts 31 and abutments 39, and it is noted that the explosions are timed to occur prior to and adjacent the time of movement of the peripheral extremities of the valves 36 past the abutments.

N ow it will be seen that the. action of the valve is such as to feed the compressed mixture from the chamber 26 into the explosion chambers 34 in a continuous succession of small volumes and it will be obvious that able exhaust pipe 46.

In order to guide the pistons 12 extensions 47 are formed on these pistons and these extensions work between a guide 48 on the walls of the cylinders.

There has thus been provided a simple an exhaust chamber 45 provided with a suitand efiicient device of the kind described and for the purpose specified.

It is obvious that many minor changes may bemade in the form and construction of the invention without departing from the .material principles thereof. It is.n.0t therefore desired to confine the invention to the exact form herein shown and-described but. it is wished to include all such as properly come within the scope of the claims.

Having thus described the invention, what is claimed as new, is I 1. In a gas turbine, a cylindrical valve casing provided with means at spaced points for communication to a compression chamber and an explosion chamber respectively,

a prismatic valve rotatably mounted within said casing and having the side edges of the prism in contactwith the wall of said casmg, a sliding abutment movable transversely of the casing and having its inner edge constantly in contact with the side of the valve, and means to rotate the valve.

. 2. In a gas turbine, a cylindrical valve casing provided with an inlet at one side and an outlet at one end, a prismatic valve rotatably mounted axially of the casing and having its side edges in contact with the inner surface of the casing, means to rotate said valve, and a sliding abutment positioned opposite the inlet and movable radially' toward and from-the center of the casing, the inner edge of said abutment being constantly in contact with the prismatic valve.

3. In a gas turbine, a compressor cylinder, a chamber for compressed fluid wherewith said cylinder communicates, an explosion, chamber having adelivery nozzle, a turbine" wheel having peripheral blades against Which the nozzle delivers the gases from the explosion chamber, a cylindrical valve casing provided with an. inletat one side communicating with the first chamber and having an outlet at one end communicating with the explosion chamber, a prismatic fromthe turbine Wheel and connected to the valve to rotate said valve, and a sliding abutment positioned opposite the inlet and movable radially toward and from the center of the casing, the inner edge of said abutment being constantly in contact with 10 the prismatic Valve.

In testimony whereof, I afiix my slgnature, in the presence of two Witnesses.

REINI-IOLD MILKE.

Witnesses:

WILLIAM MCCONALOGUE, HARRY A. WEBB.

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