US2346026A - Deep well pump jack - Google Patents

Description

April 4, 1944. c s 2,346,026

DEEP WELL PUMP JACK Filed May 4, 1943 4 Sheets-Sheet l 7" llllllll E El 1 F l I h InLentor April 1 4 R. A. HENRICKS ,34 2

DEEP WELL PUMP JACK Filed May 4, 1945 4 Sheets-Sheet 2 Inventor Wand Afieranbls WWW m y April 4, 1944. R. A. HENRICKS DEEP WELL PUMP JACK Filed May 4, 1943 4 Sheets-Sheet 5 @mbmd Hen/racks April 4, 1944. R. A. HENRICKS DEEP WELL PUMP JACK Filed May 4, 1943 4 Sheet s-Sheet 4 red/i flerzrzblts Patented Apr. 4, 1944 DEEP WELL PUM'P JACK Raymond A. Hem'lcks, Indianapolis, Iml, assignor of thirty-five per cent to Clay Bush, Indianapolis, Ind.

Application May 4, 1943, Serial No. 485,634

2i Claims.

The present invention relates generally to new and useful improvements in deep well pumps and has for its primary object to provide, in a manner as hereinafter set forth, novel means for hydraulically operating pumps of this type.

Other objects of the invention are to provide a hydraulic actuating means of the aforementioned character for deep well pumps which will be comparatively simple in construction, strong, durable, highly efiicient and reliable in operation. compact, and which may be manufactured and installed at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specifica tion, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is an elevational view of a pump operating unit constructed in accordance with the present invention.

Figure 2 is a view in vertical section through the device.

Figures 3, 4, and are views in horizontal section, taken substantially on the lines 3-3, 44, and 5-5, respectively, of Figure 2.

Figure 6 is a view in vertical section through a portion of the cylinder and the reciprocating sleeve valve therein.

Figure 7 is a detail view in elevation of the sleeve valve.

Figure 8 is a view in vertical section through the sleeve valve.

Figure 9 is an elevational view of the universal joint between the electric motor and the rotary fluid impelling pump which is driven thereby.

Figure 10 is a detail view in elevation of the ball of the universal Joint.

Figure 11 is a view in vertical section through the valve which controls the delivery of the fluid from the rotary impeller to the pump rod operating piston.

Referring now to the drawings in detail, it will be seen that the mbodiment of the invention which has been illustrated comprises a base I which is threadedly mounted on the upper end portion of the well casing 2. The base I is provided with an outlet 3 which communicates with the casing 2.

A vertical cylinder 4 is threadedly mounted on the base I. Mounted on the upper end of the cylinder 4 is an impeller pump 5 of the eccentric rotary piston and vane type. The housing 6 of the pump 5 is threaded into the upper portion of the cylinder 4. A suitable electric motor 1 is mounted on the pump housing 6. Rising from the eccentric piston 8 of the pump 5, which piston is operable in a horizontal plane, is a vertlcal shaft 9. The shaft I0 of the electric motor I is connected to the pump shaft 9 by a universal joint II.

An intake manifold I2 from the discharge side of the pump 5 communicates with the cylinder 4 at vertically spaced points through branches I3 and I4. A fluid exhaust or return manifold I5 to the intake side of the pump 5 communicates with the cylinder 4 at vertically spaced points through branches I6 and H. A sleeve valve I8 is mounted for reciprocation in the cylinder 4. The sleeve valve I8 has formed in its end portions intake ports I9 and 2|] for registry with the intake manifold branches I3 and I4, respectively, and exhaust ports 2| and 22 for registry with the exhaust manifold branches I6 and I1, respectively.

The upper end .portion of the bore of the sleeve valve I8 is reduced, as at 23, in a manner to provide a shoulder 24. Fixed in the lower end portion of the sleeve valve I8 is a bushing 25 providing a shoulder 26. The internally reduced upper end portion 23 of the sleeve valve I8 is slidable on a boss 21 which depends from the pump housing 8. The bushing 25 in the lower end portion of the sleeve valve I8 is slidable on a boss 28 which rises from the base I.

.A reciprocating rod 29 in the cylinder 4 extends slidably through the base I into the casing 2 for connection with the usual sucker rod (not shown) of the well pump. Packings 39 are provided for the rod 29 in the base I. A fluid actuated piston 3| is fixed on the upper end of the rod 29 for reciprocation in the sleeve valve I8. The piston 3| is engageable with the shoulders 24 and 26 for raising and lowering the sleeve valve I8.

The internally reduced upper end portion 23 of the sleeve valve I8 ha formed therein upper and lower circumferential grooves or channels 32. Spring pressed ball vdetents 33 are mounted in the boss 21 for engagement in the grooves or channels 32. The purpose of the detents 33 and the grooves 32 will be presently set forth.

It is thought that the operation of the device will be readily apparent from a consideration of the foregoing. Briefly, the electric motor I is energized for actuating the pump 5. Any suitable switch means may be employed for controlling the motor 1 and said motor may receive current from any desired source. With the sleeve valve I8 in raised position, as seen in Figure 2 of the forced out of the lower groove 32, said balls riding over the land between the grooves and snapping into the upper'grooves in a manner to accelerate the shifting of said sleeve valve. The ball detents 33 also releasably secure the sleeve valve iii in either of its positions. Lowering of the sleeve valve l8 closes the ports i9 and 22 and opens the ports 20 and 2|. Fluid from the pump now enters the cylinder 4 beneath the piston 3| for movingsame upwardly, the fluid above said piston escaping through the port 2| to the return manifold l5. Thus, the well rod connected to the piston rod 29 is raised. As the piston 3| approaches the end of its up-stroke it engages the shoulder 24 and returns the sleeve valv is to its raised position for again opening the ports i3 and 22 and closing the ports 20 and 2|. When this occurs the ball detents 33 snap into the lower groove 32 for accelerating the upward movement of the sleeve valve IS. The foregoing operation is then repeated.

The pump 5 may receive fluid from a suitable supply reservoir. A fluid return line 34 connects the intake manifold l2 to this reservoir. A valve 35 controls communication between the manifold l2 and the fluid line 34 and also regulates the volume of fluid flowing to the cylinder 4. A valve 36 in the exhaust manifold i5 controls the exhaust port 22 for regulating the down-stroke of the piston 3!. A condensation drain plug 31 is provided in, the base I. A cylindrical housing 38 extends between the base and the electric motor and encloses the assembly.

As illustrated to advantage in Figures 9 and of the drawings, the universal joint I I includes a ball 39 having substantially crescent-shaped keys 40 on its upper and lower portions at right angles to each other. The keys 40 ar operable in ways 4| which are provided therefor in the opposed end portions of the shafts 9 and iii. A bleeder pipe 42 connects the upper and lower portions of the cylinder 4. This pipe 42 prevents any fluid that may leak into the upper and lower ends of the cylinder 4 from being trapped. Also, the pipe 42 prevents the sliding sleeve valve i8 from becoming air bound by the formation of a vacuum above or below same.

.It is believed that the many advantages of a pump operating means constructed in accordance with the present invention will be readily understood and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

1. A pump operating means comprising a vertical cylinder, means for mounting said cylinder on a well casing, a rod operable in the cylinder and extending into the well casing, a fluid actuated piston on the rod slidable in the cylinder, a pump mounted on the cylinder, means for actuating said pump, a fluid delivery manifold connecting the discharge side of the pump to the cylinder on opposite sides of the piston, a fluid exhaust manifold connecting the intake side of the pump to the cylinder on opposite sides of the piston, a sleeve valve slidable in the cylinder, abutments in the sleeve valve engageable by the piston for actuating said sleeve valve for alternately connecting the manifolds to the cylinder on opposite sides of the piston, and means for accelerating the movement of the sleeve valve, the last named means-including a boss depending from the pump into the cylinder in spaced, concentric relation thereto, one end portion of the sleeve valve being slidable on the boss, said one end por tion of said sleeve valve having circumferential grooves therein, and spring pressed ball detents in the boss engageable in the grooves.

2. A pump operating means of the character described comprising a base for mounting on a well casing, a vertical cylinder mounted on the base, a pump mounted on the upper end of the cylinder, means for actuating the pump, a rod in the cylinder extending slidably through the base into the well casing for connection with a pump rod, a piston on said rod operable in the cylinder, a manifold connecting the discharge side of the pump to the cylinder on opposite sides of the piston, a manifold connecting the intake side of the pump to the cylinder on opposite sides of the piston, a boss depending from the pump and extending downwardly into the cylinder in spaced, concentric relation thereto, a boss rising from the base and extending into the cylinder in spaced, concentric relation thereto, a sleeve valve slidable between the piston and the cylinder, said sleeve valve having intake and exhaust ports therein on Opposite sides of the piston for communicating alternately with the manifolds, the end portions of the sleeve. valve being slidable on the bosses, shoulders in the sleeve valve engageable by the piston for connecting said sleeve valve thereto for actuation thereby, the upper portion of the sleeve valve having circumferential grooves therein, and spring pressed ball detents in the first named boss engageable in the grooves.

RAYMOND A. HENRICKS.

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