US746501A - Rotary engine. - Google Patents

Description

' No. 746,501. PATENTED DEC. 8, 1903.

' G. GUYER.

- ROTARY ENGINE. APPLICATION FILED MAY 29, 1903.

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ROTARY ENGINE.

APPLICATION FILED MAY 29., 1903.

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UNITED STATES 1 IPatented December 8, 1903.

PATENT OFFICE.

CLINTON GUYER, OF MUNOY, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO WILLIAM G. CRAWFORD, OF MUN CY, PENNSYLVANIA.

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SPECIFICATION forming part of Letters Patent N 0. 746,501, dated December 8, 1903.

Application k115i ms 29, 1908.

To all whom it may concern/.-

Be it known that I, CLINTON GUYER, a citi-; zen ofthe United States, and a resident of Money, in the county of Lycoming and State of Pennsylvania, have invented a new and. Improved Rotary Eugine, of which the;folf-,= lowing is a full, clear, and exact description.

The object of the invention is to provide a new and improved rotary engine which is, simple and durable in construction andar ranged to utilize the motive agent very economically and expansively to the fullest advantage.

a difierent position.

view of the piston; and Fig.5 is an enlarged sectional perspective View of the abutmentchamber, the abutment, and a part of the piston. f

In the cylinder-heads A and A of the cylinder A is journaled the main shaft B, carrying at oneouter end a pulley O or the like i for transmitting the developed power of the engine to other machinery, 0n the inside of the cylinder-head A isformedor secured a hub A through which extends loosely the main shaft 3, and the end of the hub A terminates a short distancefromthe cylinder-head A and the peripheral face ofr the said hub A is concentricfto the inner surface of the cylinder A, so that the hub forms, with the cylinder, an annular working chamber A as plainly shown in the drawings. In this annular working chamber travel"v one or more piston-heads D and D, preferably two in number, located diametrically opposite each other, as plainly indicated in Fig.- 2, and the said piston-heads D and D connect at one end-with a ring D fitting the Serial No- 159,272. (No model.)

hub A adjacent to the head A, and the other ends of the said piston-heads D and D are integrally connected with a disk D keyed or otherwise secured to the shaft B and extending in the space between the hub A and the cylinder-head A It is understood that the disk D the ring D and the piston-heads D and D form the piston of the engine, the piston-heads D D being pressed on by the motive agent, as hereinafter more fully described, so as to rotate the piston, and with it the shaft B, in the direction of the arrow a. (Indicated in Figs. 2 and From the bottom of the annular working chamber A leads an exhaust E, and into the top of the said working chamber is adapted to swing an abutment F, fulcrumed at F in an abutment-chamber A opening into the annular Working chamber A as plainly indicated in Figs. 2 and 3. The free end of the abutment F normally rests on the peripheral face of the fixed hub A and the said free end of theabntment is adapted to be engaged bythe peripheral cam-surface of the pistonhead D or D, so as to swing the abutment F upward back into the abutment-chamber A whenever the piston head D or. 11) passes the abutment from the rear tothe front side thereof.

Into the top of the abutment-chamber A open ports a and 19, leading from the interior of the casing G of the admissionand cut-0E valvefor the engine, said casing G being connected with a boiler or other suitable source of motive-agent supply, and in the said cas ing is mounted to oscillate a valve Gi having its stem G provided with an arm H, connected by an arm H with the free end of the eccentric-rod I of an eccentric I, secured on the main shaft B. (See Fig. 1.) Now when the engine is in operation then the eccentric I by its rod 1 and arms H and H imparts a rocking motion to the valve G, so as to alternatelyopen and close the ports a. and b to intermittently feed steam or other motive agentinto the abutment-chamber Ai -and from the latter by Way of ports or passages F in fthe said abutment into the working chamber A for the'motive agent to act on the pistonhead D or D as soon as the latter has passed the abutment.

It is understoed that the abutment F fits in between the ring D and the disk D as plainly shown in Figs. 1 and 5, so that the motive agent passing through the ports or passages F readily fills the working chamber A and acts on the corresponding piston-head D or D to turn the piston, and with it the shaft B, in the direction of the arrow at.

In order to prevent leakage of steam at the time a piston-head D or D passes under the abutment F, a packing bar or block J is provided, mounted to slide radiallyin the upper portion of the hub A and this packing-bar J is held normally in an uppermost position by a spring J and is prevented from shifting transversely by a suitable cross-bar J held in a recess in the front face of the hub A. (See Figs. 2 and 3.) Now this packing-bar J engages the inner face of the ring D as well as the under side of the piston-head I) or D as the latter moves along under the abutment F, so that leakage of steam to the rear of the piston-head is prevented at the time a piston-head passes under the abutment.

The operation is as follows: When a piston-head D or D has passed the abutment F, (see Fig. 3,) then the valve G uncovers either of the ports a or b, so that the motive agent.

can now pass from the casing G through the abutment-chamber A and the abutment F into the working chamber A to act on the corresponding piston-head D or D to turn the piston and the shaft in the direction of the arrow (1. As soon as the pistonhead D or D has advanced a desired distance then the valve G closes the corresponding port a or b, so as to shut oi the motive agent from the working chamber, and hence the steam confined in the working chamber now works expansively and finally passes from the working chamber into the exhaust E as soon as the piston-head D or D has passed the said-exhaust. When this takes place, the other piston-head, now at the top, moves past the abutment F, as previously described, and when this takes place the other port I) or a opens,

so that the motive agent is again admitted to the working chamber to act on the second piston-head, and the above-described operation is then repeated.

From the foregoing it will be seen that the steam is out 01f during a desired portion of the stroke of the piston-that is, during its passage from the abutment to the exhaust E- to allow the steam to work expansively. As the steam-pressure is equal on the ring D and the disk D the piston is completely balanoed, and hence the engine runs easily without undue loss of power and without waste of steam. As the engine is composed of comparatively few parts, it is not liable to easily get out of order.

In order to reduce the weight of the engine, the hub A may be formed with openings or a spider-web.

Having thus described my invention, I

claim as new Patent 1. A rotary engine comprising a cylinder having an annular working chamber, a piston mounted to travel in the said annular working chamber and consisting of a ring, a disk and a piston-head connecting the ring with the disk and having a peripheral camface, a swinging abutment mounted to swing into the said annular working chamber and adapted to be engaged by the cam-face of the piston-head, to swing theabutment outward for the passage of the piston-head, and an admission and cut-off valve for intermittently feeding the motive agent to the annular working chamber, as set forth.

and desire to secure by Letters 2. A rotary engine comprising a cylinder having an annular working chamber, a piston mounted to travel in the said annular working chamber and consisting of a ring, a disk and a piston-head connecting the ring with the disk and having a peripheral camface, a swinging abutment mounted to swing into the said annular working chamber and adapted to be engaged by the cam-face of the piston-head, to swing the abutment outward for the passage of the piston-head, and an admission and cut-off valve for intermittently feeding the motive agent to the annular working chamber, by wayof ports in the said abutment, as set forth.

3. A rotary engine comprising a cylinder, a central cylindrical hub secured to one cylinder-head and projecting to within a distance of the other cylinder-head, to form with the cylinder an annular working chamber, a main shaft journaled in the cylinder-heads and extending through the said hub, a piston comprising a ring extending around the hub, a disk extending in the space between the end of the hub and the adjacent cylinder-head, the disk being secured to the said main shaft, and one or more piston-heads, for connecting the said ring with the said disk, the pistonhead traveling in the said working chamber and having a peripheral cam-face, and a pivoted abutment adapted to swing in and out of the said working chamber, between the piston-ring and piston-disk, the free end of the abutment normally resting on the said hub and the piston-head being adapted to be swung outward by the cam-surface of the piston-head, as set forth.

4:. A rotary engine comprising a cylinder, a central cylindrical hub secured to one cylinder-head and projecting to within a distance of the other cylinder-head, to form with the cylinder an ann ular working chamber, a main shaft journaled in the cylinder-heads and extending through the said hub, a piston comprising a ring extending around the hub, a disk extending in the space between the end of the hub and the adjacent cylinder-head, the disk being secured to the said main shaft,

and one or more piston-heads, for connecting and having a peripheral cam-face, a pivoted abutment adapted to swing in and out of the said working chamber, between the pistonring and piston-disk, the free end of the abutment normally resting on the said hub and the piston-head being adapted to be swung outward by the cam-surface of the pistonhead, an admission and cut-01f valve for intermittently feeding the motive agent to the working chamber by way of the said abutment, and means actuating the said valve from the said main shaft, as set forth.

5. A rotary engine comprising a cylinder, a central cylindrical hub secured to one cylinder-head and projecting to within a distance of the other cylinder-head, to form with the cylinder an annular working chamber, a main shaft journaled in the cylinder-heads and extending through the said hub, a piston comprising a ring extending around the hub, a disk extending in the space between the end of the hub and the adjacent cylinder-head, the disk being secured to the said main shaft, and one or more piston-heads, for connecting the said ring with the said disk, the pistonhead traveling in the said working chamberv abutment, to engage the under side of a piston-head at the time the latter swings the abutment outward, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

OLIN TON GUYER.

Witnesses:

FREDERICK G. PETERMAN, W. K. BASTIAN.

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