US767207A - Rotary motor. - Google Patents

Description

No, 767,20*?.V BATENTBD AUG. 9, 1901:..V

` M. M. GONGBB..

- ROTARY MOTOR. Alf'PLVIoA'rIoN IILED sum1. 1903.

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NO MODEL.

. ATTORNEYS UNITED STATES Patented August 9, 1904.

ATBNT OFFICE..

ROTARY MOTOR.

SPECIFICATION forming part of Letters Patent No. 767,207, dated August 9, 1904.

l Application filed September l, 1903. Serial No. 171,481. (No model.)

To L7/Z whom, t may concern.'

Be it known that I, MILTON MARSHALL OoN- GER, a citizen of the United States, and a resident of Linneus, in the county of Linn and State of Missouri, have invented a new and Improved Rotary Motor, of which the following is a full, clear, and exact description.

The object of the invention is to provide a rotary motor of an improved type characterized by increased efciency and avery simple construction requiring a minimum amount of attention.

My improved motor embodies a rotary piston provided with valves or wings which are pressed outward by the steam and during a portion of their travel act against inclined surfaces on the case, giving a turbine action, the outward thrust against the inclines serving by the force of reaction to move the piston forward. The direct action of the motive agent is also utilized effectively against the pistonvalves, and when the valves reach the point of farthest projection beyond the periphery of the body of the piston steam is admitted to their outer faces to balance the pressure and reduce to a minimum the work required to be done by the motive agent in the forcing of the said valves inward.

The invention will be more particularly described hereinafter and then dened in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specication, in which similar characters Ofreference indicate corresponding parts in both the figures.

Figure l represents a vertical section of a motor embodying my invention, the section being taken on the line l l of Fig. 2; and Fig.

and partitioned,forming the central live-steam chamber D and exhaust-chambers E E at the sides of and also extending below the livesteam compartment. The inlet Z or supplypipe leads to the chamber D and the outlet e leads from the exhaust-chamber at the bottom of the engine. The chamber D terminates just below the horizontal center of the case and inlet-ports Dl lead therefrom at opposite sides to the working chamber O", said inletports being provided with the abutment-valves F F. The exhaust-chambers E E communicate with the working chamber O4 by a suitable number of exhaust-ports e e2 at each side adjacent to the abutment-valves F F. The interior of the casing is oblong and the piston is in general triangular in shape, having three curved sides, the wings or valves A' A2 A3 being located at the angles. With the valves A A2 A3 thus disposed at one hundred and twenty degrees from each other and the abutment-valves at diametrically Opposite points in the casing the working chamber O2 will at no time be exposed wholly to exhaust conditions. The interior surface of the casing, it will be observed, is composed of diiferent curves, there being short curves o c' at the sides adjacent to the abutmentvalves F F and extending to points l0, from which points to the opposite inlet-port the surface o2 02 is in the form of a longer curve eccentric to the iirst-named curves and which when a side ofthe piston is opposite forms with the latter a crescent-shaped space in to and across which the vvalves A A2 A3 are successively projected. In the curved surfaces o o/ depressions o3 are produced, forming steam-channels.

The valves or wings A A2 A3 are hollowed out at one side, as at c, to form steam-chambers between the same and the walls of the pockets o, in which said valves are iitted, and leading to said steam-spaces from the working chamber O2 are channels or ports b'. The abutment-valves F F are similarly made hollow, as at ff, and the faces or front surfaces.

of the abutment-valves are concaved to a conformity with the curved `front faces of the valves A A2 A2.

The motor having been started by moving the piston yto bring a Valve thereof suiiiciently past an abutment-valve to admit steam-as,

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for instance, just beyond the position of thc valve at the left of Fig'. lvstcani will be admitted from the back of the abutment-valve and act to turn the piston A in the direction of the arrow. Then the valve has p assed the point l0, the valve will be thrust outward against the curved surface c2 bythe steam beneath the valve, and from the point lO to about the point l5 the said valve acts against the curve ci as an inclined plane, the reaction tending to move the piston around. Until the point 15' or thereabout is reached it will be observed the valve contacts by its rear outer corner a, so that no live steam is admitted to its outer face. IVben, however, the point l5 is passed, the reverse condition takes place in order that the thrust outward against the outward incline may not be neutralized by the inward incline from the point l5 to the next abutmen t-valve, F. Thus after each valve A A A3 has passed the point l5 its forward edge a? will be in contact with the curved surface ci, as is seen by the position of the valve Az at the right of Fig. 1, whereby live steam is admitted to the outer face of the valve to balance the pressure beneath and permit the valve to move inward without the material expenditure of energy. It will therefore be seen that the steam acts directly against the wings or valves and indirectly by reaction or turbine effect due to the thrust of the valves against the inclined planes from the points l0 to 15. It will also be clear that the abutments are subject only to the outward pressure of the steam or other motive agent behind them when being' forced outward, while when being pressed inward the live steam acts on the outer faces of said valves to balance the pressure thereon, as will appear from a comparison of the relative positions of the said abutmentvalves. Furthermore, by my form of casing and piston and the special arrangement of wings and abutment-valves the motive agent will be used expansively during a large portion of the travel of the piston. rIhus, taking the positions of wing A and abutment F, (at the left of Fig. 1,) steam is about to be adn'iitted through the said abutment; but it will be cut off before the wing A reaches the point 15, and in the further travel of the said wing to the next exhaust-port a the wing will be under the influence of the expansive action of the steam. During the movement of the wing' A under the expansive action of the steam the abutment F will be moved to the inner position bythe opposed curved side of the piston.

Having thus described my invention, I claim as new and desire to secure by Letters Patent4 1. In a rotary motor acasing havinga working chamber and valve-controlled inlet-ports and suitable exhaust-ports, the surface of the chamber presenting curves adjacent to the inlet-ports, and longer curves beyond and adjacent to the first-named curves and presenting outward and inward inclines, and a rotary piston having sliding valves, the said valves being subject at their backs to the action of the live steam, to force them outward against the mentioned outward inclines of the casing whereby to tend to force the piston forward, the smaller curved surfaces of the casing having channels therein.

2. In a rotary motor, the combination of a casing having valve-controlled inlets, and a rotary piston having a plurality of sides which form with the casing, a series of steam-spaces, the said piston having movable wings or valves adapted to be projected into said spaces, and

the sides of the piston serving to act on the valves of the inlets and cut off the steam during a portion of the travel of the Wings. the front faces of the valves of the piston being curved to correspond With the curved outer faces of the inlet-valves.

3. In a rotary motor, a casing having an oblong working chamber formed with inletports controlled by opposite abutment-valves and with exhaust-ports, and a rotary piston of general triangular shape having Wings or valves at the ang'les, the valves being movable in inward and outward directions and subject at the backs thereof to the action of the motive agent in the Working chamber.

4L. In a rotary motor, a casing having' a working chamber, and valve-controlled inletports and suitable exhaust-ports, the surface of the chamber presenting curves adjacent to the inlet-ports, and longer curves beyond and eccentric to the first-named curves, and a rotary piston of general triangular shape having sliding valves located at the angles of the piston; and subject at their backs to the action of the motive agent in the Working chamber.

5. In a rotary motor, a casing having a working chamber and'valve-controlled inletports and suitable exhaust-ports, the surface of the chamber presenting curves adjacent to the inlet-ports, and longer curves beyond and eccentric to the first-named curves, and a rotary piston having sliding Valves subject at their backs to the action of the motive agent in the working chamber; the piston be ing of general triangular shape and the valves thereof being arranged at the angles.

6. In a rotary motor, a casing having a working chamber and valve-controlled inletports and suitable exhaust-ports, the surface of the chamber presenting curves adjacent to the inlet-ports, and longer curves beyond and eccentric to the first-named curves, and a rotary piston. having sliding valves subject at their backs to the action of the motive agent in the Working chamber; the firstnamed curves of the casing having channels therein.

7. In a rotary motor, a casing having a working chamber and inner and outer Walls forming a steam-space outside the working chamber, said outer space being divided into TO the periphery and movable in inward and outward directions to follow the surface of the working chamber.

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

MILTON MARSHALL CONGER. i

Witnesses:

S. W. FURNAs, GEORGE W. WRIGHT.

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