US2012839A - Motor - Google Patents

Description

Aug. 27, 1935. J. w. TURNER MOTOR 2 Sheets-Sheet 1 v Filed April 19, 19:52

*villini I lili!! Aug.`27, 1935. J. w. TURNER MOTOR Filed April 19, 1952 2 Sheets-Sheet 2l Patented Aug. 27, 1935 UNITED STATI-:s PATENT oFFlcE John W. Turner, Houston, Tex.

Application April 19, 1932, Serial No. 606,083

This invention relates to a motor. An object of the invention isto provide a motor to be used for operating a deep well pump andy operable by pressure fluid.

Another object of the invention is to provide a motor .of the character `described specially designed for use in deep wells and adapted to be connected to the travelling valve of a pump and constructed to utilize an operating fluid under pressure to reciprocate said traveling valve whereby the well fluid may be pumped from the well.

A further object of the invention resides in the provision oi"4 pump operating mechanism connected to the traveling valve of the pump through which the operating iiuid is utilized to reciprocate said valve and by means of which said operating fluid is discharged into the fluid being pumped and returned with said iiuid to the ground surface.

With the above and other objects in view the invention vhas particular relation to certain novel features of construction, operation and arrangement of parts, an example of which is given in this specication and illustrated in the accompanying drawings, wherein:

Figure 1 shows a vertical sectional view of the motor as connected to a pump.

Figure 2 shows an enlarged vertical sectional view of the upper end thereof, with the parts in positionfor beginning the upstroke.

'I Figure 3 shows a cross sectional view taken on the line 3 3 of Figure 2;

. stroke.

Figure 5 shows an enlarged vertical sectional4 view of an intermediate section of the pump connected to the motor, and

Figure 6 shows an enlarged vertical sectional view of the lower end thereof.

Referring now more particularly to the drawings, wherein like numerals of reference designate similar parts in each of the gures, the

'numeral I designates the lworking barrel of a pump at the lower end of which there is the conventional upwardly opening standing Vvalve 2. Within the working barrel there is the upwardly opening traveling valve 3 which is attached to the lower end of the pump rod 4. The

working barrel has atransverse partition 5 above the traveling valve provided with a stufling box G through which the 'rod 4 works.V Within the working barrel I above the partition 5 there is a hollow plunger l to which the upper end of the s claims. (cl. 121-164) Ypump rod 4 isl connected and which is provided with the lower end ports 8, 8. This plunger 'I rits closely within the working barrel I and its closed upper end carries a suitable stuiling box 9. Connected to the upper end of the working .5 barrel I there is a cylinder I0 and anchored to the' lower end of this cylinder there is an end plate II forming the upper end of the working barrel and provided with the ports I2. Within the cylinder Ill there is a piston valve I3 and a l0 tubular piston rod I4 is attached to the lower end 'of the valve I3 and works through a central opening in the end plate II and is fitted also through stuiiing box 9 and has its lower end open. The rod I 4 has the external upper and lower abut- 15 ments I5, I 6, the former being located beneath the end plate I I and spaced the required distance from the piston valve I3 and the other being located beneath the stuffing box 9.

The cylinder I0 has an external rib Il there- 20 on, arranged intermediate its ends, and a tubular nipple I8 is arranged over the upper end of the cylinder and is spaced therefrom and has its lower end attached to the rib Il. 'Ihe upper end e of the nipple I8 is reduced and the lower end of 25 'the port 20. The cylinder I0 has the discharge port 23 beneath the rib Il andthe piston valve 35 I3 has the axial channel 24 which extendson clown through the rod I4 and which has the up y per and lower laterally turned branches 25, 25N K The,Iv upper end of the cylinder I0 is closed inany suitable manner as by means of an end plate 2l.

Spaced beneath the channel 22 the valve I3 has another external annular channel 29 and leading downwardly from this channel through the valve I3 there is a duct 30. The piston valve I3 is also provided with an annular external channel 3 I which is spaced beneath the channel 29.

The branches 25, 26 are connected into the respective channels 22, 3| and these channelsare arranged to communicate alternately with the ports 20, 23.

The operation of the mechanism is as follows:- Assuming that the traveling valve 3 is in its lower position as indicated by Figure 2 with the valve" I3 also in its lower position against the plate II, in this position the inlet port 20 will register with the channel 22 and the pressure iiuid exerted downwardly through the string I9 will pass downwardly through the channel 24 and on down through the hollow plunger 1 and ports 8 into the pressure chamber 3I and the pressure willbe built up in said chamber which will operate against the upper end of the plunger-1 and elevate said plunger as well as the traveling valve 3, and the fluid in the working barrel above the plunger 1 will be discharged out through a port I2 and through the duct 33 and channel 29 and out through the discharge port 23, and the iluid in 'the working barrel above the traveling valve will be discharged out through the ports 32 into the space 33 between the working barrel and the outer casing or pipe 34 and will pass on up during succeeding strokes of the pump and will be discharged at the ground surface. The plunger 1 will move -on up under the influence yof said pressure until a greater diameter than that of the branch 25 to permit the pressure fluid to continue to enter through the branch 25 until the plunger 1 has moved to said extreme upper position. Thereupon the channel 3l will register with the discharge port 23 and the channel 29 will come into alignment with the lower inlet port 2| as shown in Figure 4 and the pressure fluid will pass inwardly through the inlet port 2I and will pass thence through the duct 30 and through the ports I2 and will operate against the upper end of the plunger 1 and will force the same downwardly, the fluid in the pressure chamber 3|, escaping out through the port 23. .Upon the corresponding downward movement of the traveling valve 3, the

standing valve 2 will be closed and the fluid above it will pass on up above the traveling valve. Upon the downward movement of the plunger I1, its upper endwill strike the lower stop I6 on the rod I4 and will force said rod downwardly moving the piston valve I3 downwardly with it to carry the channel 29 out of registration with the inlet port 2I and the momentum of the downwardly moving plunger 1 and traveling valve 3 carried thereby will be eiective to cause the continued downward movement of thepiston valve I3 until the channel 22 is brought again into alignment with the inlet port 20 and the channels 29 and 3I are carried out of registration with the inlet port 2l and the exhaust port 23, respectively as shown in Figure 2. The exhaust port 23 hasv a greater diameter than the branch 26 to permit the continued escape of pressure fluid from the pressure chamber 3I duringthe final downward movement of the plunger 1 and the traveling valve 3 carried thereby and thereupon pressure will begin to build up again in the pressure chamber 3| and the upstroke of the traveling valve 3 will again occur as before.

The exhaust fluid will pass out through the exhaust port 23 and into the iluidbeing pumped out. The operating uid will preferably be clean oil although any other suitable fluid may be used for the purpose.

A portion of the operating fluid Vmay pass through the channel 35 which leads through the piston valve I3 from the channel 24 and this fluid passing through the channel 35 will be discharged -against the wall of the cylinder I and will keep the same lubricated and washed free of grit and the like that might otherwise collect thereon.

The drawings and description disclose what ls now vconsidered to be a preferred form of the invention by wayv of illustration only, while the broad principle of the invention will be dened by the appended claims.

What l claim is: l

1. A motor for operating a pump in a well bore and adapted to be actuated by an operating fluid, said motor comprising 'a cylinder and having an inlet for said fluid, a barrel attached to the lower end of the cylinder and having a pressure chamber therein, a piston valve in the cylinder, a hollow plunger in said chamber having an outlet port at its lower end leading into said chamber, a tubular valve rod connected to the piston valve and. extending into said plunger, means closing the upper end of the plunger and including a stufng box around said rod whereby the plunger is mounted to slide on said rod, said cylinder and piston valve having passageways for the operating fluid one of which leads from said inlet through said rod into said pressure chamber be- `1 and adapted to be actuated by an operating fluid,

said motor comprising a cylinder, a barrel attached to the lower end of the cylinder and having a pressure chamber therein, a piston valve in the cylinder, a hollow plunger in said chamber having an outlet port at its lower end leading into said chamber, a tubular valve rod connected to the piston valve and extending into said plunger, means closing the upper end of the plunger and including a stuffing box around said rod whereby the plunger is mounted to slide on said rod, said cylinder and piston valve having passageways for the operating uid one of which leads from a source of fluid pressure through said rod into said press e chamber beneath the plunger and the other of which leads from said pressurechamber above the plunger through the .piston valve to a point outside of the motor when the valve is in one position and one of which leads fromthe pressure chamber beneath the plunger through said rod to'a point outside of the motor and another of which leads from said source, through the piston valve, into said pressure chamber above `the plunger when the valve is in another position, and operative connections between the plunger and rod through which said valve may be shifted from one to the other of said positions.

3. A motor for operating a pump in a well bore and adapted to be actuated by an operating fluid, said motor having an inlet for an operating iluid and comprising a cylinder, a barrel attached to 'the lower end of the cylinder and having a pres other of which leads through the piston valve from said pressure chamber above the plunger to a point outside of the motor when the valve is in one position and one of which leads from the pressure chamber beneath the plunger through said plunger, rod and valve to a point outside of the motor and another of which leads from said inlet into said pressure chamber above the plunger when the valve is in another position, operative connections between said rod and plunger whereby the valve may be shifted from one to the other of said positions and means for connecting said plunger to the pump to bel 5

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