US1018737A

US1018737A - Rotary engine.

Info

Publication number: US1018737A
Application number: US66990812A
Authority: US
Inventors: William Thomas Bennett
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-01-06
Filing date: 1912-01-06
Publication date: 1912-02-27
Anticipated expiration: 1929-02-27

Description

W. T. BENNETT.

ROTARY ENGINE.

APPLICATION FILED JAN. 21, 1911v RENEWED JAN. 6, 1912.

Patented Feb. 27, 1912.

L T E B H 3 S T E E H S 2 0 a M. Q W7 R m M V I w PLANOGRAPl-l (10., WASHINGTON, D. c.

W. T. BENNETT.

ROTARY ENGINE.

APPLICATION FILED JAN.21,1911. RENEWED JAN. 6, 1912.

1,018 737. Patented Feb. 27, 1912.

2 SHEETS-SHEET 2. .7;

3 D.'HI D UNITE SAES PATENT OFFICE.

. ROTARY ENGINE.

Application filed January 21, 1911, Serial No. 603,912. Renewed January 6, 1912.

I Specification of Letters Patent.

Patented Feb. 2'7, 1912.

Serial No. 669,908.

To all whom it may concern:

Be it known that I, WILLIAM THOMAS I BENNETT, of the town of Sunderland, in the county of Ontario, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Rotary Steam- Engines, of which the following is the specification.

My invention relates to improvements in rotary steam engines and the object of the invention is to devise a rotary engine in which practically all friction will be eliminated in the cylinder and pistons in their rotations and in which all the working parts are steam packed and consequently prevent leakage of steam and it consists essentially of a cylinder provided with heads at each end thereof rotatably mounted in suitable bearings, a hollow shaft extending eccentrically through the bearings and through 'the cylinder and having steam ports therein located within the cylinder, a rotor mounted on the eccentric hollow shaft and provided with steam passages extending from the hollow shaft on which the rotor is mounted to the outer periphery of the rotor, a cylinder valve located within the hollow shaft and provided with steam ports designed to be brought to register with the steam ports of the shaft, winged pistons held at one end within the rotor and at the opposlte end in the wall of the cylinder and an exhaust valve located in one of the heads of the cylinder and means for operating the exhaust and inlet valves in unison when it is desired to reverse the engine, the parts being arranged and constructed in detail as hereinafter more particularly described by the following specification.

Figure 1 is a general perspective view of my engine partially broken away and in section. Fig. 2, is a longitudinal section through the engine. Fig. 3, is a cross section through the engine cylinder and rotor. Fig. 4, is a similar view to Fig. 8 showing the wing pistons in the position adjacent to the point of the inlet and exhaust. Fig. 5, is a cross sectional View on line 0c3 Fig. 2. Fig. 6, is a perspective detail of the movable member of the exhaust valve looking from the opposite side to that shown in Fig. 5.

I Fig. 7, is a perspective detail of the stationary member of the exhaust valve. Fig. 8, is a perspective detail of the cylindrical inlet valve. Fig. 9 is a view of the disk J".

In the drawings like letters of reference indicate corresponding parts in each figure.

A is the base plate of the engine provided with standards A and A The standard A is provided with an inwardly extending stud A having a longitudinal bore A ex tending eccentrically therethrough.

B is a cylinder provided with heads B and B suitably secured to the cylinder B.

C is the main driving shaft extending through the bearing standard A The head B of the cylinder B is rotatably mounted on the stud A and the head B is mounted on the driving shaft C and keyed or otherwise suitably secured thereto. The head B is provided wit-h a recess B in which is held a bushing B also provided with an eccentric bore B axially opposite the bore A of the stud A D is a hollow shaft extending through the bores A and A at each end and through the cylinder casing. The hollow shaft D is provided with ports D and D E is the rotor mounted upon the hollow shaft D and provided with steam passages E and E E and E (the steam passages E and E being particularly shown by dotted lines in Fig. 3) extending from the surface of the hollow shaft D to the outer periphery of the rotor E. The passages are preferably curved in form as shown so that the force of the steam admission will serve to aid in driving the engine.

F and F are wing pistons held at one end in the slots H in the rocking members H held within cylindrical recesses E formed in the rotor E. The opposite end of the wing pistons are provided with cylindrical cesses B formed in the cylinder B.

I is the inlet valve which is of cylindrical form and having a closed end I and ports I and I The outer end of the inlet valve I is provided with openings Itand I and stem I extending centrally through the outer end of the hollow shaft D and the bore A of the stud A The outer end of portions F fitting within cylindrical rethe hollow shaft D is provided with a T- pipe D for the admission of steam into the engine. The arm D of the pipe D is provided with a cap or bushing D through which the end of the stem I extends. The head B is provided with a recess B having a supplemental central recess B J is a stationary member of the exhaust valve comprising the annular portion J having segmental flanges J 2 and J 3 extending therefrom and forming peripheral ports J and J The opposite face of the annular portion J is provided with an annular flange forming a sleeve J 6 having a supplemental annular flange J 7 extending around the internal periphery of the flange J G at its outer end. As will be seen from Fig. 2 the portions J J 2 and J 3 fit within the recess B and the portions J G and J T within the recess B K is the movable member of the exhaust valve comprising a central hub K and wings K and K K is an arc-shaped slot formed in a hub K. The wing K is provided with an areshaped rib K having a central tooth-like projection K as will be seen particularly on referring to Fig. '5.

The member K fits within the flanges J 2 and J of the member J and is rotatable therein so as to close either the port J 4 or the port J L is the inlet and exhaust valve operating lever (see Fig. 1) secured at its lower end to the rocking rod L extending through stud A to the exhaust passage 2.

L is a fork secured to the inner end of the rod L. The fork L extends down through the passage 2 into the recess formed by the flange K and engages with the tooth-like projections K.

3 is a passage leading from the passage 2 into a hollow bearing cap L" provided with openings L communicating with the atmosphere.

To operate the inlet valve I provide an arm M secured to the stem I. The arm M is provided with a link M connecting the arm with the operating lever L.

J is a disk suitably secured to the stationary member J of the exhaust valve. The disk J is provided with ports J and J 9 communicating between the ports J 4 and J and the interior of the cylinder.

Having described the principal parts involved in my invention I will briefly describe the operation of the same.

Steam is admitted through the pipe D into the hollow shaft D and passes through the openings I and I into the valve I. The steam passes from the valve I through the ports I and D and through the passages E and E into the cylinder. The steam expanding in the space behind the piston F serves (see Fig. 4) to rotate the rotor and the casing, the casing revolving concentrically around the hollow shaft D and rotor eccentrically to the shaft D. As the piston F passes the port J 9 the steam exhausts through the port J the port J and passes behind the wing K through the arc-shaped slot K to the passage way 2 leading into the passage-way 3 passing through the stud A to the atmosphere.

It will be noticed on referring to Figs. 3 and 4 that the member H has a rocking motion within the cylindrical bore E of the rotor so as to compensate for the change in relation between the rotor and the cylinder as they revolve.

When it is desired to reverse the engine all that it is necessary to do is to throw the lever L over so that the ports I and D register and are in communication with the passage-ways E and E as the rotor revolves around the hollow shaft. Simultaneously with this adjustment the exhaust valve is thrown into the reverse position by means of the rod L and the fork L engaging the tooth like projection K thereby rocking the valve member K and thereby opening the port J 4 and closing the port J The exhaust steam will then pass through the port J 8 of the disk 17 and the port J to the atmosphere.

From this description it will be seen that I have devised an engine which will practically eliminate all friction between the rotor and the casing as in my device both the rotor and the casing revolve and thereby prevent any such friction taking place. It will also be seen that all the parts are steam packed and thereby preventing any leakage of steam.

l/Vhat I claim as my invention is:

1. In a rotary engine, the combination with the cylinder provided with suitable heads rotatably mounted on suitable bearings and a driving shaft connected to one of the heads, of a shaft extending eccentrically through the cylinder, a rotor loosely mounted upon the eccentric shaft, wing pistons, slotted drum members held within the rotor and designed to receive the inner ends of the wing pistons and a hinged connection between the outer end of the winged pistons and the wall of the cylinder, as and for the purpose specified.

2. In a rotary engine, the combination with the cylindrical casing having cylindrical recesses in the periphery thereof provided with suitable heads mounted on suitable bearings, of a shaft extending eccentrically through the bearings of the cylinder, a rotor loosely mounted thereon having cylindrical recesses extending through the periphery thereof, slotted rocking members fitting within the recesses, wing pistons held within the slots of the rocking members and provided with cylindrical outer ends fitting correspondingly formed re cesses in the wall of the cylinder, and means for admitting steam toand exhausting steam from the cylinder, as and for the purpose specified.

3. In a rotary engine, the combination with the cylindrical casing mounted on suitable bearings having suitable exhaust ports, of a hollow shaft extending eccentrically through the bearings and through the cylinder and having a closed inner end and steam ports extending through the periphery thereof, a cylindrical valve fitting Within the hollow shaft and provided with ports designed to be brought to register with the ports of the hollow shaft, a rotor mounted upon the eccentric shaft and having steam passages extending substantially radially from the surface of the hollow shaft to the periphery of the rotor, and wing pistons connected to the rotor and to the wall of cylinder, as and for the purpose specified.

4. In a rotary engine, the combination with the cylinder mounted on suitable bearings and provided with exhaust ports, of a hollow shaft extending through the bearings and through the cylinder and provided with ports in the periphery thereof, a cylindrical valve fitting within the hollow shaft and provided with a closed inner end and ports registering with the ports of the hollow shaft, a stem ext-ending from the cylindrical valve through the end of the hollow shaft, an operating lever therefor, a steam pipe connected to the hollow shaft, a rotor mounted on the hollow shaft and provided with substantially radial passages extending from the surfaces of the hollow shaft to the outer periphery of the rotor, as and for the purpose specified.

In a device of the class described, the combination with the cylinder having a recessed head, a bearing for the cylinder hav ing an exhaust passage therein, a stationary disk member supported within the recess of the head and provided with ports communicating with the exhaust passage in the cylinder bearing and a rocking disk member co-acting with the stationary disk member to open and close the ports, as and for the purpose specified.

6. In a device of the class described, the combination with the engine cylinder supported upon suitable bearings and provided with a recessed head at one end, a disk fitting into the recess of the head and provided with ports communicating with the engine cylinder at each side, a stationary disk fitting within the recess at the back of the aforesaid disk and provided with segmental flanges forming ports registering with the aforesaid ports communicating with the cylrecess to the cylinder, a

inder, a rocking member fitting within the segmental flanges and designed to open and close the ports formed by the flanges, and means for rocking the member, as and for the purpose specified.

7. In a device of the class describechthe combination with the cylinder provided with a recessed head, a bearing stud provided with exhaust passages extending longitudinally therethrough, a partition formed in the head between the recess and the cylinder and having exhaust ports communicating between the recess and the cylinder, a segmental winged rocking member designed to open and close the ports and means for rocking the same so as to bring either one port or the other into communication with the exhaust passage, as and for the purpose specified.

8. In a device of the class described, the combination with the cylinder having a recessed head provided with a partition extending between the recess and the cylinder and having exhaust ports leading from the stud bearing for the cylinder having an exhaust passage communicating with the recess formed in the head, an annular disk member having segmental peripheral flanges forming ports registering with the ports of the partition, a rocking member provided with upper and lower segmental wing portions fitting within the segmental flanges of the annular disk member, the lower wing portion being provided with a peripheral flange having a tooth-like inwardly extending projection, a rocking rod extending through the bearing of the cylinder provided at one end with a fork engaging the tooth-like projection and at the other end with an operating lever, as and for the purpose specified.

9. In a device of the class described, the combination with the cylinder provided with a suitable recessed head, of a stud bearing upon which the recessed head is mounted, a longitudinal exhaust passage communicating with the recess in the head, a stationary annular disk member secured to the stud and provided with segmental flanges forming peripheral ports, a stationary partition connected to such member and provided with ports communicating with the cylinder and registering with the said peripheral ports, a rocking member journaled on the stud and provided with segmental flange members extending between the partition and the annular disk so as to alternately open and close the ports, and means for rocking the disk as and for the purpose specified.

10. In a rotary engine, a cylinder provided with suitable heads, a bearing standard provided with a stud extending through from one of the heads of the cylinder, a

bushing located in a recess formed in the other head of the cylinder, a shaft extending eccentrieally through the stud, the cylinder and the bushing, a rotor mounted on 5 the shaft, wings connected at one end to the rotor and at the other end to the Wall of the cylinder, and means for admitting and exhausting steam from the cylinder as and for the purpose specified.

WM. THOMAS BENNETT.

Witnesses G. C. BEALL, JOHN L. GORDON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D; 0.?