US2395092A - Hydraulic motor - Google Patents

Description

Feb' 19,1946. T, c. BERToGLlo 2,395,092

. v 4 I HYDRAULIC MOTOR Fi1ed-Maroh 12, 1945 INVENTOR.

7g/VY C DEE'rOGL/o,

PatentedFeb. 19, 1946 2,395,092 y HYDRAULIC Moron Tony C. Bertoglio, Lomita,

fourth to Calif.

Calif., assignor of one- Robert W. Anderson, Los Angeles,

Application March 12, 1945, Serial No. 582,333

4 Claims.

as Water therethrough.

erated by water power.

It is a specic object of my invention to provide a motor in combination with a brush in which the brush is rotated by the motor by the passage of Water through the motor and in which the water passing out of the motor is used for washing or scrubbing.

Other objects, features and advantages of my invention will be apparent to those skilled in this particularly as taken from the i accompanying drawing in which:

Fig. 1 is an elevation of the hydraulic motor shown in combination with a brush,

Fig. 2 is a vertical section of the motor taken along line 2-2 of Fig. 1,

Fig. 3 is a plan view of the motor with the cover plate removed taken along line 3-3 of Fig.

, and Y Fig. 4 is a vertical section taken along line 4-4 of Fig. 3.

Referring to the drawing, the hydraulic motor is indicated generally as l and a circular brush is indicated as 2 which is mounted on a shaft 3 of the motor. A water inlet hose or other iiexible order to prevent injury to the article being washed.

The motor is composed of a circular metal casing l0, the upper portion of which is recessed The motor Wheel l 2a, b, spaced intervals around its periphery. Each vane is iixed on a rod I4 Iwhich extends radially in a guide provided in the recessed in the motor wheel. The end of the rod is preferably bent and the bent portion is provided with a spring Iii attached to the bottom of the well. Normally the tension of springs IiA maintain the vanes in a vertical position.

The interior of the casing I0 is provided with a concentric circular vane track indicated as 2li and 2|. The width of the vane track is slightly larger than the width of the vanes in order to permit the vanes to slide in the vane track. The vane track has two depths; that portion of the vane track indicated as 2i) extending in a clockwise direction from the water inlet opening 4c to discharge outlet 4b isV of sulllcient depth to receive the vanes in a vertical position While that portion of the vane track indicated as 2l extending in a counter-'clockwise direction from the water inlet 4a to the discharge outlet 4b has less depth but is of suiiicient depth to receive the vanes in a substantially horizontal position as shown in Fig. 4. Thus as shown more particularly in Fig. 3, vanes Ia and l2b are in a vertical position in the vane track 2li of greater depth while vanes l2c and I2d are in a horizontal position in the vane track 2| of less depth. The point Zia adjacent the water outlet 4b Where the vane track'ZU joins with vane track 2l is preferably inclined so that the step-up is gradual.

vane track 20 are in a vertical position but as they pass the discharge outlet 4b, they are gradually tripped to a horizontal position by traveling on the inclined surface Zia. They then ride in a horizontal position in vane track 2l until they reach the water inlet 4a whereupon the springs pull the vanes to the vertical position as they enter vane track 2B.

The vane track 2l of lesser depth is also provided with several cupped or U-shaped valves 25, which are hinged at one end at 26 and are provided with springs 2 to retain them upward in normal position. These valves are set in depressions in the lower surface of the vane track in such manner that as the vanes travel over them the valves will be forced into their depressions allowing the vanes to pass over them but when the vanes have passed over them, they will return to their normal upward positions. The cupped valves function primarily as seals to prevent the water from passing in a counter-clockwise direction to the discharge outlet. A pair of motor Wheel to a well l5 55 the cupped valves are provided so that when one of the valves is depressed by the passage of a vane thereover, the other will be raised to serve as the sealing medium.

The lower portion of the casing is recessed to receive a conventional thrust bearing 30 and packing 3l. A plate 32 held by screws 33 holds the thrust bearing in place. A cover 34 is provided for enclosing the casing which is fastened to the casing by a number of screws 35. A gasket 36 of suitable packing material is interposed between the casing and cover in order to maintain close and water tight joints. The inner center of the cover is recessed to provide a bearing for the upper end 31 of the shaft 3. A nut 3a is provided on the shaft to affix the thrust bearing against the shoulder of a circular nut 38 provided on the shaft.

In order to provide for a water tight unit and to obtain the maximum efficiency of the water pressure to rotate the motor wheel, various sealing means are used. A sealing disc 38 having a central hole to it over the shaft is provided to cover the motor wheel. The sealing disc may be made of flexible material such as thin metal, plastic, etc. The cover plate is provided with two ridges 34a extending circumferentially on the inner surface of the plate. These ridges abut against the sealing disc. Thus, the sealing disc 34 and the ridges 34a form a seal on the upper part of the motor above the motor wheel. Also, similar ridges l la are provided in the vertical side of the motor wheel which contact the inner casing w-all a adjacent the motor wheel. While I have shown the inner casing wall Ia as an integral part of the casing, it may be desirable to make this wall of flexible material, such as graphite impregnated hard rubber or plastic or other self lubricating metal which may be inserted and fixed in the casing in the position shown for the wall lila. A flexible insert of this type will have sufficient elasticity to exert a pressure against the ridges lla. The ridges Ila acting against the wall Ilia form a tight seal to prevent water pressure from releasing from the vane track through the underside of the motor Wheel to the discharge outlet 4b.

Also, as stated above, the cupped valves serve to prevent water from being discharged in a counter-clockwise direction to the discharge outlet. These valves are preferably made of thin flexible metal covered with leather, rubber or other exible material so that the force of the water pressure will force the sides of the cupped valves against the vertical walls of the vane track, thus insuring a tight seal in the vane track. In this manner, the full force of the water pressure in the space between the cupped valves andthe vane adjacent the water inlet receiving the force of the water pressure such as the vane 12a shown in Fig. 3 is utilized to rotate the motor wheel.

In order to provide for a tight seal between the sides of the vanes and the walls of the vane track, the surfaces of vanes on the sides subjected to the water pressure may likewise be covered with leather, rubber, etc. If desired, the covering may be cupped shaped in the manner shown for the cupped valves so that the sides thereof will press against the walls of the vane track by the water pressure.

It will be noted that as the tated, the radial swing of about 45 degrees, that is each vane rotates about 45 degrees as it passes from the vertical position in vane track to the horizontal position in vane track 2|. Likewise, it returns the 45 degree arc when the vane is returned to the vertical position in vane track 20. A movement of more than 45 degrees is prevented by the bends at the motor wheel is rothe vanes is merely ends of the rods I4 since these abut against the walls of the wells when the vanes are in a vertical position thus preventing further radial movement of the vanes. Obviously, other means may be provided to limit the radial movement of the vanes.

In operation, the flexible connection 4 is connected to the outlet of a service water pipe in any known manner and the water is turned on to desired extent depending upon the speed of rotation of brush desired. The water will ll the space between a raised cupped valve and a vertical vane adjacent clockwise to the inlet opening such as for example, vane |2a. shown in Fig. 3. The water pressure will exert a force against the vane causing motor wheel to rotate in a clockwise direction, bringing another vane beyond the inlet opening into the vane track 20 which in turn receives the force of the water As the vanes pass towards the discharge outlet the water is discharged through the opening 4a and pipe 5. These vanes are then swung in horizontal position and slide in vane track 2l until they reach the opening 4a whereupon they resume their vertical positions to be again impacted with water. Thus, a steady rotation of the motor wheel is obtained which in turn rotates the brush attached to the shaft. As the water issues through pipe 5, it is directed on the brush and thus serves as a detergent liquid after it has spent its force in driving the motor. During the rotation of the motor wheel, the cupped valves 25 are alternately depressed by the passage of the vanes thereover.

It is to be understood that the foregoing description of my invention is merely illustrative thereof and is not to be taken as limiting since many variations thereof may be made without departing from the spirit thereof.

I claim:

1. A hydraulic motor comprising a substantially cylindrical casing having a water inlet opening and a discharge outlet, a motor wheel adapted to rotate concentrically in said casing, radially disposed guides in said motor wheel, a plurality of substantially rectangular vanes mounted on rods, said rods being disposed in said guides and said vanes being disposed adjacent the periphery of said motor wheel, a concentric vane track for said vanes communicating with said water inlet opening and discharge outlet and having a depth between said water inlet opening and said discharge outlet merely sufficient to receive said vanes in vertical position and between said discharge outlet and said water inlet opening merely sufficient to receive said vanes in a horizontal position, means at the ends of said rods to maintain said vanes in a normal vertical position, whereby upon rotation of said motor wheel the vanes alternately slide in the deeper portion of said vane track in vertical position and in the portion of said vane track of less depth in a horizontal position and whereby introduction of water under pressure into said vane track will exert a pressure against vertically disposed vanes thereby rotating said motor wheel, cupped valves in said vane track of less depth, said cupped valves being adapted to open upon contact with said vanes.

2. A hydraulic motor comprising a substantially cylindrical casing having a water inlet opening and a discharge outlet, a motor wheel mounted in said casing adapted to rotate concentrically in said casing, a plurality of substantially rectangular vanes mounted adjacent the periphery of said motor wheel, each vane being adapted to move in an arc, a concentric vane track in said casing adapted to receive said vanes, the depth of said tation of said motor Wheel.

3. A hydraulic motor comprising a substantially cylindrical casing having a water inlet opening and a discharge outlet, a motor wheel mounted in said casing adapted to rotate concentrically in said casing, a plurality of substantially rectangular vanes mounted adjacent the periphery of said motor wheel, each vane being adapted to is in closed position during rotation of said motor wheel.

4. A hydraulic motor comprising a substantially cylindrical casing

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