US309693A - Rotary engine - Google Patents

Description

(No Model.) 2 Sheets-Slieet 1.

H. OLIMER.

ROTARY ENGINE. 7

N0. 309,693. Patented Dec. 23, 1884.

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flttorney (No Model.) H GLIMER 2 SheetsSheet 2.

ROTARY ENGINE.

Patented Dec. 23, 1884,

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HENRY GLIMER, OF MUSOATINE, IO\VA.

ROTARY ENGENE.

SPECIFICATION forming part of Letters Patent No. 309,693, dated December 23,188t.

Application tiled June 16, 1884, (No model.)

'[0 CL whom it may concern:

Be it known that I, HENRY CLIMER, a citizen of the United States, residing at Muscatine, in the county of Muscatine and State of Iowa, have invented certain new and useful Improvements in Rotary Engines; 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 appertains to make and use the same.

My invention relates to certain improvements in that class of rotary engines in which the hub or rotating piston is concentric with the cylinder or casing in which it rotates; and it consists in a certain novel construct-ion and arrangement of the various parts, all of which I will now proceed to point out and describe, reference being had to the accompanying drawings, in which- Figure 1 is a transverse vertical section taken on line 00 a: of Fig. 2. Fig. 2 is a longitudinal vertical section taken through the center of the shaft, and showing one set of piston-heads in elevation. Fig. 3 is a perspective of the inner face of the upper section of the cylinder; Fig. 4:, a perspective of the inner face of the lower section of the cylinder; Fig. 5, an elevation of the rotary piston, and Fig. 6 a detail showing the adjustable jo urnalbearin Referring to said drawings, A is the steam chest; 13, the steam cylinder or casing, made in two sections bolted or otherwise secured together, and provided on its interior face with two cam-abutinents, O 0, parallel to each other and extending slightly over one-half way, or thereabout, around said steam-cylinder, said abutments being of the same length and width.

D D are induction-ports located at one end of the eam-abutments G 0, said ports D D opening into the steam channels or chambers D 1), formed between the ends of the camabutments O C by the interior face of the stean1-cylinder and the rotary piston or hub G, as hereinafter described.

E E are exhaust-ports.

The cylinder is also provided with grooves a, in which are fitted gibs or packing-rings a, made of metal or any of the materials commonly used therefor. These packing-rings are adjustable from the outside of the cylinder by set-screws a; or suitable springs can be used instead of set-serews, if desired.

\Vithin the cylinder B, and concentric with said cylinder, is the rotary piston or hub G, mounted on the shaft 1), the journals of which shalt pass through stuffing-boxes b in the cyl inder-heads, as shown in Fig. 2, and are journaled in the adjustable j ournal-bearings c, composed of the bearing-block 0, having bolts d, which secure it firmly in position when adjusted, said bolts working in the slots (1 in the frame, and the set-screws d and d", for adjusting the bearing laterally and vertically. By this arrangement of the adjustable bearings the rotary piston can be adjusted with the greatest nicety and exactness in relation to the cam-abutments.

The rotary piston G is formed with three annular flanges, c c and 6, one at each end and the third in the middle of the piston. Each flange has grooves g, in which the packingrings a fit and form a perfectly steam-tight joint. The middle flange, 0, divides the rotary piston into two parts, forming two chambers or channels, F F, on the periphery of the piston, into which the cam-abutments G 0 enter, as shown in Fig. 2, the cam-abutments and face of the piston fitting snugly together, while the steam channels or chambers D D are formed between the ends of the camabutments by the inner face of the cylinder, the face of rotary piston, and the annular flanges.

The rotary piston is provided with radial steam heads or wings H H, which slide in and out in rectangular slots f in said rotary piston. The slots fare formed partially in the flanges c c and 0', so that the steanrheads form perfectly steamtight joints, and pack themselves within the sides of the rotary piston, and do not bear against the sides or heads of the cylinder, as is the case in most rotary engines. he steanrheads are forced outward against the interior face of the cylinder by centrifugal force, and by any suitable springs, 51 g, which pass entirely through holes in the shaft Z) and bear against the shanks h h of said steam-heads. The action of the camsteam-heads forces it in and drives the other nary manner, so arranged that one valve is and live steam enters said channel, live abutments on the outer edge of one of the out independent of the springs. Said steamheads are thus kept in yielding contact with the inner face of the cylinder, and when beyond the cam-abutments form heads, against which the steam exerts its pressure, and thereby revolves the piston.

I do not mean to confine myself to the use of four steam-heads, as shown in the drawin gs, but can use a greater number, if desired. This will depend largely upon the size of the cylinder.

Between the abutments and the rotary piston a tight joint can be made, to prevent any backpressure of the steam, by suitable packing, I I, operated by springs t i, or in any suitable manner, and preferably located just abovethe induction-ports.

Admission of steam to the steam-chambers is controlled by suitable valves, K K, located in the steam-chest and operated in the ordiadmitting steam to one steam chamber or channel while the other is closed, and vice versa. The steam-heads are arranged so that the steam is not admitted to the steam-chaml bers until the piston-heads have passed the l induction-ports and reached the full size of] the steam-chamber, as shown in Fig. 1. The live steam then operates against a piston-head, H, in one chamber or channel, F, for about one-quarter of the revolution, until it reaches the point shown in dotted lines, Fig. 1, when it.is cut off and the steam allowed to act by expansion for the rest of the half-revolution. As live steam is cut off from the channel F, the valve of the other channel, F, is opened steam thus being admitted to one stean'l-channel while it is out off from the other, and acting by expansion, and vice versa.

The valves may be arranged to out off at less than a quarter of the revolution, thus securing greater expansion and economy of steam.

WVhen the steam-heads pass the point I, the exhaust is effected through the ports E E, and while said steam-heads are passing the abutments O 0 there is no pressure upon the same, the packing at I I thoroughly preventing any back-pressure, the steam thus acting entirely in the direction of the revolution of l the piston.

The articular advanta es of in en ine P b y a;

over most rotary engines are that the steam channels or chambers are formed entirely within the rotary piston, the sides of said channels being the annular flanges on the piston. The steam-heads form a perfectly steam-tight joint by hearing against said annular flanges. The only friction is from the packing-rings bearing against the annular flanges and the construction and arrangement of the various parts so that steam can be used expansively, thus securing the greater economy of such practice.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent In-a rotary engine, a cylinder provided with cam-abutments G 0, suitable grooves and packing-rings, a, and induction and exhaust ports located at the ends of the cam-abutments, in combination with a concentric rotary piston provided with annular flanges c e c, dividing the periphery of said rotary piston into two channels, radial slots f in said rotary piston, and flanges and steamheads H sliding in said slots, and forming withthe annular flanges a steam-tight joint, all arranged and operating as and for the purpose shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY OLIMER.

IVitnesses:

F. O. lVIOCLEARY, H. HoLLERrrn.

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