US978085A - Rotary motor. - Google Patents

Description

H. F. WBINLAND.

ROTARY MOTOR.

APPLIoATIoN FILED DB0. 2e. 1907.

978,085. Patented Dea-6,1910; i

3 SHEETS-SHEET 1.'

H. F. WEINLAND. ROTARY MOTOR.

APPLIoATIoN FILED DBO. a, 1901.

978,085. Patenteanec. 6, 1910.

a sume-SHEET 2.

H. P. WEINLAND.

ROTARY MOTOR.

PPLIoATIoN FILED 1120.26, 1907.

Patented Dec. 6, 1910.

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'UNITED STATES PATENT OFFICE.

HENRY F. WEINLAND, OF SPRINGFIELD, OHIO, ASSIGNOR TO THE LAGONDA MANU- FACTURING QOMPANY, OIE' SPRINGFIELD, OHIO, A CORPORATION OF OHIO.

i ROTARY MOTOR.

To all 'whom it 'may concern.'

Be it known that I, HENRY F. VVEINLAND, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Rotary Motors, of which the following is a specification, reference being had therein to the accompanying drawings.

f efficiency in operation.

A further object is to so arrange the runner in itsl relation to the casing, as to take up wear and avoid loss of the actuating medium.

With these and other objects in view, myI`4 invention consists of the construction and combination hereinafter described and set forth in the claims.

In the accompanying drawings, Figure 1 is a top plan View of a motor embodying my invention. Fig. 2 is a side elevation of same. Fig. 3 is a sectional plan view of exhaust head on line M M of Fig. 2, looking in the direction ofthe arrows. Fig'. 4 is a sectional plan View of inlet head taken on line O O of Fig. 2, looking in the direction lof the arrows. Fig. 5 is a cross sectional view of inlet head taken on line Y Y of Fig. 4. Fig. 6 is an end View of the runner and case taken on the line N N of Fig. 2, looking in the direction of the arrows, the exhaust head being' removed. Fig. 7 is a cross section through motor on the line Z Z of Fig. 1. Fig. 8 is a detail of paddle holding cage. Fig. 9 is a cross section of same. Figs. 10 and 11 show modifications of the paddle, the paddle being shown within the cage in Fig. 10. Fig. 12 is a cross section through the case showing one inlet and exhaust port, the drawing being broken away showing the conduits leading to said ports.

In the drawings, c represents an exhaust head, an inlet head and c the cylinder of Speccatipn loi Letters Patent.

Application filed December 26, 1907.

Patented Dee. 6, 1910. serial No. 408,005.

a casing forming a chamber in which a runner d is adapted to operate, the arrangement being such that the runner contacts w1th the walls of the chamber on opposite sides thereof, forming oppositely disposed crescent shaped chambers c2 and c3 as particularly shown in Fig. 6.

The chamber in which the runner is placed so as to form the two crescent shaped chambers, may be elliptical in form but I preferably arrange it in what I may term a three circle chamber, that is to say, the inner walls of the chamber are so curved as to give a greater length of surface where the runner contacts with the wall, thus forming a better seal than would be given if the chamber were in the form of a perfect ellipse. On opposite sides of these points of contact, I have arranged inlet ports c* and exhaust ports c5 opening through conduits into the crescent shaped chambers as particularly shown in Figs. 6 and 12. As the inlet and exhaust ports open in opposite sides of the casing and Fig. 6 is a view looking at exhaust side, the inlet ports in this view are shown in dotted lines. The actuating medium is introduced through an opening b1 in the head I), the supply hose coupling being screwed therein or connected in any suitable manner, and the conduits b2 leading from said opening', register at their inner ends with the ports c, the arrangement being particularly shown in Figs. 4t and 5.

In the head a, I have shown conduits a1 having a common outlet a2, the inner ends of said conduits having openings a that register with the exhaust port c5, said head and conduits being particularly shown in Figs. 1 and 3. The heads a and b and the cylinder c are secured together by bolts c.

The runner cl is mounted on a shaft (Z1, having a reduced end (Z2 journaled in a recess of the head b and I preferably use a removable bushing b in said recess to form a bearing for the shaft. The forward end of the shaft extends through and is journaled in an opening in a central hub like portion a* of the head a, and I preferably provide a removable bushing b4 in said opening to form a bearing for the shaft, said bushing having a shoulder' at its inner end to bear against a collar al on the shaft.

The outer end of the shaft I have shown square in form to receive a socket coupling to transmit the power but anysuitable cou@ pling may be employed for this purpose. When the motor is used for driving a drill Y or tube cleaner, the end thrust is severe and i pinch the collar on the shaft.

I have shown the runner with three radially movable paddles da .equally distant from each other, held within recesses in the runner when passing the portions of the wall of the chamber that the runner is in contact with, and adapted as the runner rotates to move outwardly into the crescent shaped chambers to receive the pressure of the actuating medium to rotate the runner, said pressure being admitted through the inlet ports and discharged through the exhaust por-ts hereinbefore described. s

In Fig. 6, I have shown one of the paddles at rest between an inlet port" of one crescent lchamber and the exhaust port of the other, and the runner rotating from right to lef-t, the paddle following it is under pressure at about one-third its stroke, and the paddle preceding it is under pressure at about twothirds its stroke. Now when the iirst named paddle passes the inlet and takes pressure, it closes off the pressure from the preceding paddle, and each paddle successively operates through the oppositely disposed-chambers taking and exhausting the actuating medium in like manner to rotate the runner.

It will be seen that by providing two wor-kingchanabers and a runner with three paddles, I obtain a working distance of two-thirds of a revolution, whereas in a single stage mo-tor taking steam at only one point, the working distance is only about one-half the revolution. This increase of workingY distance in each revolution avoids dead centers, gives greater steadiness of motion and efficiency, and a motor of a given power can be built less in weight and smal-ller in compass than a single stage motor of like power.

rIhev paddles may berseated directly in recesses in the runner but I preferably employ removable cages Zt having slots in which the paddles are seated. Said cages are formedwith oppositely disposed shoulders d5' to hold them within recesses in the runner as particularly shown in Fig. 6. Ordinarily, the paddles will be thrown outwardly by centrifugal force but in the event they should from any cause stick in the slot and become inoperative and allowing the. actuating medium to. waste through the chamber, I have provided the channelsl d opening into the rear of slots behind the paddles admitting the actuating medium to positively force the paddles outwardly, the arrangement being clearly shown in Figs. 8 and 9.

I preferably make the length of the runner slightly less than the length of the chamber in which it operates, and the runner is splined on the shaft as shown at d10 in Fig. 7 tol admit of some longitudinal movement to permit the thrust bearing to take the thrust and give the cylinder rings and paddles clearance to act.

The cylinder rings c7 are recessed in each side of the runner and are intercepted by the paddles or paddle cages when the cages are used. The rings are spring pressed by springs cS in a well known manner to hold the rings against the casing and forni a seal, and I preferably form the cagesV in sections the inner abutting ends of which have a shoulder Z7 so that when the actuating medium forces the sectionsapart to keep the outer ends in contact with the casing, the shoulder di will form a seal to prevent the escape of the actuating medium, and while I have shown the paddles in a single plate or blade, these too may be made in sections and adapted to be pressed apartV as shown in Figs. 10 and 1l, the shoulder als forming a seal in one direction and the oppositely disposed abutting reduced portions' el being necessary when that portion of the pad-` dle having the abutting portions al have moved outwardly, and are operating through the working chambers. These sectional paddles and cages together with the cylinder rings form a complete continuo-us seal between the sides of the runner and the casing. To reduce the bearingsurf'ace. between the runner and the casing, I preferably form the heads a; and Z9- with slight central recesses a5 and b5 as shown in Figs. 5 and 7. Y

Having thus described my invention, I claim: Y p

1. In a rotatable motor such as described, a casing and a runner with radially movable paddles and removable cages thereforV having no radial movement, said cages being made in sections adapted to be forced apart by the actuating medium, the inner ends having abutting shoulders to prevent the escape yof the actuating medium, substantially as described.

2. In' a rotatable motor such as. described, a casing and a runner with radially movable paddles and removable cages for said paddles seated in said runner and having no radial movement, sealing rings 'between the runner and casing intercepted by the cages, said cages being made in sections and adapted to be forced apart by the actuating medium, the inner ends being arranged to. form a seal toL prevent the escape of the: actuating medium, substantially as: described.

8. In a rotatable motor such as described, a casing and a runner with radially movable paddles and removable cages for said paddles seated in said runner and having no radial movement, sealing rings between the runner and casing, intercepted by the cages, said cages and paddles each being made in sections adapted to be forced apart by the actuating medium, the inner ends of each having abutting shoulders to prevent the escape of the actuating medium, substantially as described.

4. In a rotatable motor such as described, a runner, a casing having a chamber therefor with inlet and exhaust ports, a driving shaft rotated by the runner but adapted to move longitudinally therethrough, radially movable paddles and removable cages for said paddles seated in said runner and having no radial movement, sealing rings between the runner and casing intercepted by the ca es, said cages being made in sections and adapted to be forced apart by the actuating medium, the inner ends being arranged to form a seal to prevent the escape of the actuating medium and means to take the end thrust of the shaft, substantially as described.

5. In a rotatable motor such as described, a runner, a casing having a chamber therefor with inlet and exhaust ports, a driving shaft rotated by the runner but adapted to move longitudinally therethrough, radially movable paddles and removable cages for said paddles seated in said runner and having no radial movement, sealing rings between the runner and casing intercepted by the cages, said cages and paddles each being made in sections adapted to be forced apart by the actuating medium, the inner ends of each having abutting shoulders to prevent the escape of the actuating medium, a bearing portion on the casing and a collar fixed on the shaft to take the end thrust, substantially as described.

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

HENRY F. WEINLAND. Witnesses:

M. M. SELLERS, CARL CASKEY.

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