US919496A - Rotary engine. - Google Patents

Description

E. B. TRESCHER. ROTARY ENGINE.

APPLICATION FILED APR.16, 1908. 91 9,496.

2 SEBIETSw-BHEET 1.

Patented Apr. 27,1909.

E. B. TRESCHBR.

ROTARY ENGINE.

l APPLICATION FILED APR. 16, 1908`. Apr' vEMIL B. TRESOHE R, OF BOSTON, MASSAOllUSIITlS.

ROTARY ENG-INE Specification of Letters Patent.

Patented April 27', 1909.

Application filed April 16, 1908. Serial No. 427,374.

To all whom it may concern:

Be it known that l, EMIL B. TRESCHER, a citizen of the German Empire, residing at lBoston, in the county of Suffolk and State olz Massachusetts, have invented certain new and useful Improvements in Rotary Engines, of which the following is aspeciiication.

This invention relates to steam engines, and more particularly to rotary engines, and has 'for its lobject to provide an engine o'l this type which will be relatively simple in arrangement and structure, and which will do away with the elaborate and complicated valve mechanism, packing therein, etc.

A further ,object oi' this invention is to provide anengine of the above described character including a plurality of paddles or impact members `o'l' foldable sections arranged to lie normally in a closed position, but which are adapted to open consecutively upon admission of steam or fluid to the engine cylinder.

Other objects and advantages will be apparent from the following description and it will be understood that changes in the s pecii ic structure shown and described may be made within the scope of the claims without departingfrom the spirit of the invention.

In the drawings forming a portion of this speciiication, and in which like numerals et' reference indicate similar parts in the several views, Figure 1 is a side elevational view et the present invention, Fig. 2 is a vertical sectional view on the line 2 2 of Fig. 1, Fig. 3 is a sectional view on the line S-3 of Fig. 2, Fig. 4 is a diagrammatic iigure oi' a portion ol" the stationary cylinder showing the cam grooves and the steam impact paddles, Fig. 5 is a detail sectional view oi the revoluble wheel on the line 5 5 of Fig. 3, Fig. 6 is a horizontal sectional view on the line 6*-6 of Fig. 5.

Referring now more particularly to the drawings, there is shown a rotary engine comprising a stationary metallic casing 10 provided at each side with a circular flanged portion 11, as shown. vided with a suitable supporting base 12 bolted to the casing as shown at 13. At each side, the casing is provided with a vertically disposed arm 14 each being provided at its center with a bearing 15. The bearings 15 thus sup ort a revoluble shai't 16 provided with a p urality of radial spokes 17. The spokes 17 have their outer portions directed to the inner face oi the casing 10 and are located between planes of the iianges 11, as i each other,

The casing 10 is proshown. rThe spokes 17 thus receive a rovoluble metallic body 1S provided with a bottom wall 19 and spaced side walls 2i). The side walls 20 are thus disposed inwardly oilI the i'ianges 11 ol' the casing, and the bottom wall 15) is thus arranged in spaced relation to the casing l'or a purpose to be hereina'i'ter described.

ylhe casing 1() upon its inner l'ace is provided with cam grooves 2l and 22 respectively arranged in parallel relation circumi'erentially oi' the casing, and these grooves are in communication with angularly disposed cam grooves 23 and 24.- respectively at cach of their ends. Ii'he cam grooves 23 and 24 are also in communication with a single groove 25, as shown. .Each spoke 17 is provided with a steam impact paddle 26 comprising two members 27 and 2S respectively hinged to each spoke as shown at 29. ihe members 27 and 2S are located within the metallic body 1,8, and are thus arranged to close portions ol' this body when said paddles are in their open position. its outer end each paddle is provided with a pin 3l), and these pins are arranged [or movement in the cam grooves just described. The casing is provided at one side with a steam. supply pipe 31, and at the other side the cylinder is provided with an exhaust pipe 3L. lt will thus be seen that steam or similar iluid may enter the inlet 51, and is discharged within the casing and revoluble body 1S, and passes the paddles which are only partly open, and strikes other paddles in their open position until it reaches one entirely closing the interior ol the revolving body, thus setting up motion which revolves said body, moving the paddles around until the steam is discharged at the pipe 32 where it may be dew livered to a suitable condenser. It will thus be seen that the construction is such that when the revoluble body is in motion, the pins 30 carried by the members 27 and 2S respectively oi' the paddles will tend to close said paddles when they are engaged with the groove 25, and upon entrance oi the pins in the passages 23 and 24, it is obvious that the paddle members will partly open, and al'ter said pins have traveled or reached the parallel grooves 21 and 22 it will be apparent that said paddle members are in an open position. The stationary casing, adjacent to the inlet 31 is provided with dei'lector plates 31a arranged in spaced relation to as shown, to permit the hinged tween the flanges of the casing, said spokes l wings to pass therebetween in their travel. Similar deiiector plates 32a are carried by the casing adjacent to the exhaust 32.

What is claimed is:

l. In a rotary engine, the combination with a stationary cylindrical casing having cam grooves in its inner curved face, of a power shaft located concentrically with the casing, a revoluble hollow body carried by the shaft, 'for rotation therewith, said body being located within the inclosure of the casing, and having an open Jface directed toward the inner curved surface ot the casing, said casing having spaced inlet and exhaust ports, a pair of transversely spaced deflector plates carried by the casing adjacent to'each of the ports, said deilector plates being located between the ports, a plurality of radial s okes carried by the hollow member therewit in, a pair of steam impact paddles hinged upon the spokes for movement to lie at times in position for passage between the deflector plates, and at times in position to extend transversely of the hollow body, and pins carried by the blade and engaged in the cam grooves, said grooves being arranged tor movement of the pins to bring the blades into parallel relation when passing the deflector plates and to bring the blades into oppositely extending position when at other portions oic the casing.

2. ln a rotary engine, the combination with a stationary cylindrical casing including circular flange portions at Aeach side, of a vertically extending arm connected with the casing, and extending diametrically thereover at each side of the casing, a hollow shalt journaled in the arm concentrically of the casing, radial spokes connected with the power shaft, a cylindrical body connected with the spokes for rotation therewith, said body including a bottom wall and spaced vertically extending side walls, said side walls extending at their outerportions bel .Witnessesz l including portions lying between the side l walls of the body, a pair of impact paddles pivoted to the last named portion of each spoke, said paddles lying within the revoluble body, and means for moving the paddles upon their pivots7 said casing having steam inlet and exhaust ports.

3. In a rotary engine, the combination circular iiange portions at each side, of a vertically extending arm connected with the casing, and extending diametrically thereoi` at each side of the casing, a hollow shaft `iournaled in the arm concentrically of the casing, radial spokes connected with the hollow shaft, a cylindrical body connected with the spokes for rotation therewith, said body including a bottom wall, and spaced vertically extending side walls, said side walls extending at their outer portions between the flanges of the casing, said spokes including portions lying between the side walls oi' the body, a pair of impact paddles pivoted to the last named portion of each spoke, said paddles lying within the revoluble body, means tor moving the paddles upon their pivots, said casing having cam grooves in its inner curved face', and having also spaced inlet and exhaust ports, a pair of transversely extending spaced deflector plates carried by the casing adjacent to and inwardly of the ports, and pins carried by the steam impact paddles and engaged in the cam grooves, said grooves being arranged for movement oin the pins to bring the paddles into parallel relation at times for passage between the deilector plates, and at times into oppositely extending position to receive the impact of steam thereagainst.

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

EMIL B. TRESCHER.

l EvEREr'r N. Comas,

ELMER L. BRIGGS.

with a stationary cylindrical casing including

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