US964754A - Rotary engine. - Google Patents

Description

E. P. GHADER & V. ANDERSON. ROTARY ENGINE.

. APPLICATION FILED AUG.23, 1909. 964,754. Patented July 19, 1910.

3 SHEETS-SHEET 1.

EE L 0570l0959 Emil F. Chagief Y1'11ce11t Anderson E. F. GHADER & V. ANDERSON. ROTARY ENGINE.

APPLIOATION FILED AUG.23,1909.

- Patented Ju1y19,1910.

3 SHEETSSHEET 2 E. F. GHADER & V. ANDERSON.

ROTARY ENGINE.

APPLICATION nun AUG.23. 1909.

Patented July 19,1910.

3 SHEETEr-SHEET 3 ammbo m.

Emil F.Chuder Vincent Anderson exto t/ma S.

1H: NpRRIs PETERS co, wnsmucmn u c A PTN EIVIIL F. CHADER, OF PEARL RIVER, AND VINCENT ANDERSON, 0F ARLINGTON, NEW YORK.

ROTARY ENGINE.

coarse.

Specification of Letters Patent.

Patented July 19, 1914).

Application filed. August 23, 1909. Serial No. 514,235.

To all whom it may concern:

lie it known that we, EMU. F. CHADER and Vine-uni Annnason, citizens of the United States, residing, respectively, at Pearl River, county of Rockland, and Arlington, in the county of Dutchess, State of New York, have invented certain new and useful Improvements in Rotary Engines; and We 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.

This invention relates to engines and has special reference to an engine of the rotary type.

One object of the invent-ion is to improve the general construction of engines of this character.

Another object of the invention is to provide a novel form of reversing valve for engines of this character.

A third object of the invention is to provide a novel construction of engine which may be used as either a simple two cylinder engine or a compound engine.

A fourth object of the invention is to provide a novel form of intercepting valve between the two cylinders, the valve being arranged to convert the engine from a simple to a compound engine or from a compound to a simple engine at pleasure.

\Vith the above and other objects in view the invention consists in general of a casing wherein are mounted certain rotary members, together with novel reversing and intercepting valves.

The invention further consists in certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings, and specifically set forth in the claims.

In the accompanying drawings, like characters of reference indicate like parts in the several views, and :-Figure 1 is a section through the preferred form of this invention, the section being taken on the longitudinal median plane thereof. Fig. 2 is a top plan view of the form shown in Fig. 1. Fig. 8 is a section similar to Fig. 1 of another form of the invention. Fig. 1 is a perspective view of one of the piston members. F ig. 5 is a horizontal section on the center lines of the cylinders shown in Fig. 3. Fig. 6 is an enlarged detail view of the valve used with this invention, as a reversing valve. Fig. 7 is a perspective view of a modified form of piston.

The body of this invention consists of a central portion 10 provided with heads 11 and 12 which are secured to the body by means of bolts 13. This body is provided with a base 1% for the purpose of mounting the same on a suitable foundation. Within the body 10 is formed a central chamber 15 and in the preferred form of the invention there is provided a lateral chamber 16 on one side of the chamber 15 and a second lateral chamber 17 on the opposite side thereof. In cross section these chambers are sub stantially in the form of intersecting circles as can clearly be seen by reference to Fig. 1. Upon the heads 11 and 12 are formed bosses 18 and 19 respectively, these bosses being centrally disposed with reference to the chamber 15 when the heads are in position. Through the bosses 1S and 19 passes a shaft 20 whereon is keyed a disk 21 preferably termed the abutment disk. Suitably spaced around this disk are recesses 22 which have narrow peripheral openings and widened interior portions as disclosed in F 1. Other bosses 23 are formed on the heads .11 and on the heads 12 are still further bosses 24.

Through the bosses 23 and 241-v pass shafts 25, said bosses being centrally located with reference to the chambers 16 and 17 Upon one of the shafts 25 is securely keyed a rotating member 26 while upon the other shaft is similarly fixed a rotating member 27. Each of these cylinders is provided with dovetailed slots 28 and in these slots are held piston members 29. These piston members are equal in number to the recesses 22 and are similarly spaced. The rotating members 26 and 27 are cylindrical in form and equal in diameter to the member 22 while the chambers 16 and 17 are larger than the chamber 15 so that room is made for the projecting piston members 29. Furthermore, as the members 21, 26 and 27 revolve the members 29 enter the slots 22.

Formed upon the upper side of the body 10 are bosses 31 and 32 which communicate respectively with the chambers 16 and 17 by means of steam passages 38. The upper ends of these steam passages are provided with enlarged portions 3 1 wherein fit branches 35 and 36 of steam pipes 37 and 38 respectively. The lower portion of the body 10 is provided with a large centrally disposed boss 39 having a slot 40 therethrough and passages 41 and 42 lead to this slot from the respective chambers 16 and 17.

Slidable within the slotted portion 40 is a valve 43 provided with a D-shaped recess 44 from which extends an opening 45, the recess being on the upper side of the valve and the opening 45 extending through the lower side thereof. This valve 43 is also provided with a through opening 46 which extends from the top to the bottom side. The centers of the openings 44 and 46 are spaced apart to correspond in distance to the centers of the passages 41 and 42 where they open into the slot 40. Through the lower part of the boss extend openings 47 and 48 corresponding in position respectively to the openings 41 and 42.

In order to move this valve 43 to and fro in the slot 40 there is provided a laterally projecting lug 49 having a threaded aperture therein, and in this threaded aperture is a screw 50 which is supported in a suitable bearing 51 formed on the body. The outer end of the screw 50 is provided with a worm wheel 51 wherewith meshes a worm 52 carried on a shaft 53 supported in bearings 54 formed on the body, and this shaft is fiovided with a suitable hand wheel 55.

hen this hand wheel is rotated the worm causes the worm wheel and screw 50 to turn and consequently moves the valve 43 within the slot 40. The reversing valve comprises a hollow cylindrical body 56 provided with steam passages 57 and 58 which are connected to the pipes 37 and 38 respectively. This body is furthermore provided with an inlet port 59 and oppositely disposed outlet ports 60 and 61 adjacent the passages 57 and 58 respectively. An inlet or steam pipe 62 is connected to the valve body, being screwed in the port 59 and outlet pipes 63 and 64 are screwed into the outlet ports 60 and 61 respectively. WVithin the casing 56 is a rotary valve 65 having an annular passage 66 therearound and from this annular passage extends a steam passage 67. The valve is also provided with an angular exhaust passage 68 which is adapted to be brought into communication with the ports 61 and 60 according as the valve is turned to the position shown or to a position diametrically opposite. In order to hold the valve in the casing there is provided a cover plate 69 which is held to the casing by means of suitable bolts 70 and which extend over the rotary portion of the valve. This cover plate 69 is perforated centrally and the valve is provided with a stem 71 adapted to receive a suitable valve handle or wheel as may be desired.

The pipe 37 leads around the body 10 and is secured to the boss 39 so that it communicates with the passage 48 while the pipe 38 in like manner leads around the body and is secured to communicate with the passage 47.

In order to cause the members 21, 26 and 27 to rotate in unison the shafts 20 and 25 have secured thereto gear wheels 72 which mesh together so that as one of the shafts rotates the others will be compelled to rotate in unison therewith.

In the operation of this form of the device let it be supposed that the parts are in the position indicated in Fig. 1. Steam will then enter through the pipe 62 and pass by means of the annular passage, through the steam passage 67 into the pipe 37. The incoming steam will fill the space in the chamber 16 between the piston member 29 and the abutment member 21 and will force the piston member around in the direction indicated by the arrow at the top of said mem her, the abutment member meanwhile turning as indicated by the arrow at the top of that member by reason of the meshing of the gears 72. As this action proceeds the other member 29 enters one of the recesses 22 and is thus permitted to pass the abutment member 21. Just as the members assume the position shown on the right hand of Fig. 1 the entering steam strikes in the recess 22 and moves around said recess and violently impinges upon the member 29 thus forming a species of impulse action.

After the member 29 has passed around the cylinder 16 sufi iciently far the passage 41 will be opened and the steam between the two members 29 will be allow-ed to escape through that passage. After passing through the passage 41 it enters the D-shaped recess 44 of the valve 43 and passes upward into the passage 42. From thence it passes into the opening or chamber 17 and strikes the member 29, the member 21 still acting as an abutment. After the member 29 of the rotor 27 has revolved sufliciently to open the passage 33 the steam will escape through that passage into the pipe 38 and from there will pass into the exhaust passage 68 from whence it passes out through the exhaust port 61 into the exhaust pipe 64. From here it may be led to the atmosphere or to a suitable condenser or feed water heater. Now, if the valve 65 be rotated 180 degrees the passage 68 will be brought into communication with the pipe 37 while the passage 67 will be brought into communication with the pipe 38. IVhen this takes place the steam flows downward through the passage 33 and causes the rotator 27 to revolve in a direction opposite to the arrow marked thereon and consequently reverses the entire cycle of operations just described.

hen it is desired to use the engine as a single expansion engine the hand wheel 55 is turned until the ports 46 and 45 are brought to register respectively with the ports 4.7 and 48. If the desired direction be that of the arrows shown the reversing valve at the upper part of Fig. 1 is left in the position there shown. This will cause a portion of the steam to pass downward through the pipe section 35 and actuate the rotor 27 as previously described. The remainder of the steam will pass around the pipe 37 through the opening a8, port -15, passage 12 and into the chamber 17 where it will cause the rotor 27 to rotate in the direction of the arrow. The exhaust steam from the chamber 16 will pass out through the port 4-1, passage 46, passage 47 and into the pipe 38 while the exhaust steam from the chamber 17 will pass out through the passage 33, pipe section 36 and into the pipe 38 from whence the steam will pass out through the exhaust pipe 64 as previously described. It will be obvious that if the valve (35 be rotated as before mentioned, 180 degrees, the engine will be reversed and will act as a single expansion engine moving in the direction opposite the arrows, if the valve 43 is left in the position just described.

In the modified form of rotor shown in Fig. 7 the rotor 27 is'disclosed as having four members 29 and these members are set diametrically opposite in pairs, one pair being at right angles to the other. Between these pairs is an annular rib 73 which is intended to move in an annular recess formed in the abutment member so that the construction is substantially that of a double engine, the advantage being that four impulses are received for each revolution instead of two.

In the modified form of the invention shown in Figs. 3 and 5 there is provided a casing 74: having a chamber 7 5 for the abutment member and a chamber 76 for the rotor. This casing 74 is provided with heads 77 and 78 which are secured by means of bolts 79 in a similar manner to the other form of the invention. These heads 77 and 78 are provided with bosses 80 which are bushed as at 81 to receive shafts S9 and 83. On the shaft 83 is mounted an abutment member 8& while on the shaft 82 is mounted a rotor 85 provided with the usual piston members 86. The abutment member 84: has the recesses 87 shown in the other form and on top of the casing 74 is a boss 88 provided with an exhaust passage whereto is connected the end of an exhaust pipe 90 the opposite end of which is connected to the exhaust of a valve 91 of the same form as the reversing valve shown in the other form of the invention. A boss 92 is provided on the bottom of the invention and this boss has an inlet or steam passage 93 formed therein which communicates with the valve 91 by means of a pipe 9 1. The pipes 90 and 94: communicate respectively with openings 95 and 96 in the valve and these openings cor respond to the openings 57 and 58 of the valve previously described. Exhaust pipes 97 and 98 are connected to this valve as is also an inlet pipe 99. By means of this construction either the pipe '90 or the pipe 9ft: may be constituted the inlet pipe and when the pipe 90 is used as an inlet the rotor will revolve in the direction of the arrow at the top thereof while when the pipe 94 is used as the inlet the rotor will revolve in the opposite direction.

For the purpose of lubricating the invention suitable oil cups 100 may be used wherever deemed necessary.

It will be noted that the form shown in Figs. 3 and 4:, having as it does but one rotor, is not intended to be used as a compound engine and therefore the intercepting valve shown at the bottom of Figs. 1 and 2 is omitted from this form.

There has thus been provided a simple and efficient device of the kind described and for the purpose specified.

It is obvious that minor changes may be made in the form and construction of this invention without departing from the material principles thereof. It is not 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 appended claims.

Having thus described the invention, what is claimed as new, is 1- 1. In a rotary engine, a casing provided with a central chamber and a pair of lateral intersecting chambers all segmento-cylindrical in form, said casing having passages leading thereinto at the several intersections of said chambers, a rotary abutment in the central chamber, a rotor in each of the lateral chambers, a reversing valve communicating with two of the passages, an intercepting valve communicating with the other passages and the reversing valve, and means to actuate said valve.

2. In a rotary engine, a casing provided with a central chamber and a pair of lateral communicating chambers all segmento-cylindrical in form, said casing having a pair of passages communicating respectively with said lateral chambers, said casing further having a second pair of passages communicating respectively with said lateral chamhere, said last mentioned passages opening into a valve chamber provided with ports opposite said passages, pipes each connected to the first mentioned passage to one of said chambers and to the port opposite the second mentioned passage to the other chamber, and a valve in the valve chamber arranged to connect the second pair of passages in one position and to connect the ports to their respective passages in another position.

3. In a rotary engine, a casing provided with a central chamber and a pair of lateral communicating chambers all segmento-cylindrical in form, said casing having a pair of passages communicating respectively with said lateral chambers, said casing further having a second pair of passages communicating respectively with said lateral chambers, said last mentioned passages opening into a valve chamber provided with ports opposite said passages, pipes each connected to the first mentioned passage to one of said chambers and to the port opposite the second mentioned passage to the other chamber, a valve in the valve chamber arranged to connect the second pair of passages in one posi tion and to connect the ports to their respective passages in another position and a reversing valve in communication with said pipes.

4:. In a device of the kind described, a reversing valve comprising a casing having a cylindrical chamber therein and a diaphragm across one end having a pair of ports opening therethrough, said casing having other oppositely disposed exhaust ports leading from said chamber and an inlet port spaced longitudinally of the casing from the last mentioned port, and a ro-- EMIL F. CHADER. VINCENT ANDERSON.

Witnesses:

LOTTIE C. HALL, V. EGLING HALL.

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