US1851802A - Double acting deep well pump - Google Patents

Description

March 29, 1932. c, BQQNE 1,851,802

DOUBLE ACTING DEEP WELL PUMP Filed Oct. 6. 1951 4 h?- f I 4 55 u Z5 @harledQBoone 2 Z7 I 90' 1 K t M Patented Mn. 29, 1932 UNITED STATES PATENT OFFICE CHARLES G. BOONE, OI TULSA, OKLAHOMA, ASSIGNOR TO MAGIG CIT'Y SPECIALTY M- PANY, OI TULSA, OKLAHOMA, A CORPORATION 01 OKLAHOMA DOUBLE ACTI ENG DEEP WELL PUMP Application filed October 8, 1981. Serial No. 567,268.

This invention relates to double acting pumps and its object is to provide a pump particularly adapted for use in deep wells which may be operated by ressure fluid delivereo. from-the surface 0 the well.

A further object is to provide a pump simpler in construction and one in which the pump cylinder may be any desirable length or size as desired.

Other objects and advantages will become apparent from the description which proceeds.

Referring to the accompanying drawings which are made a art hereof and on which 15 similar reference characters indicate similar parts,

Figure 1 is a sectional view of the pump showlng the motor and pumping cylinder,

Figure 2, a top plan view of the pump as 20 shown in Figure 1,

Figures 3 and 4 are sections on lines 33 and 4-4 respectively, and

Figure 5 is a bottom plan view with the bottom nipple or connection removed.

In the drawings numeral indicates a motor cylinder and 11 a pumping cylinder. The motor cylinder has a piston 12 and the pumping cylinder has a piston 13 operating therein, the pistons being connected by a 60 common piston rod 14.

Suitable cup washers or other washers may be secured on the piston 12 and suitable rings or other sealing means may be applied to the piston 13. The pumping cylinder 11 is secured at-its upper end to a plate 15 and at its lower end to a cap 16. The cylinder may be secured in any suitable way to the plate and cap, one preferred way being by welding. On one side the plate 15 is provided with a plurality of ports 17c and on its other side with similar ports 18 which provide outlet passages from the pumping "cylinder as will presently be described. The cap 16 is also provided with aplurality of ports 19 and 20. Tubes 21 are secured to the cap 16 at one end and to the plate 15 at the other in registry with ports 19 and 17 and similar tubes 22 are secured to the cap and plate in registry with ports and 18. The cap 16 is also provided with a port 23 which enters the lower end of thepumping cylinder 11 beneath the piston 13.

A partition 24 divides the. cap 16 to provide chambers 25 and 26. A plate 27 and a nipple 28 are secured to the lower end of the cup 16 by means of screws or bolts 46 and 47. Inlet valves are positioned within the chambers 25 and 26 and consist of valve seats 29 which are screw threaded into the plate 27. These valve seats carry ball valves 30 held within cages 31 and are held on their seats by means of springs 32. A casing 33 is secured about the tubes and the pumping cylinder and is attached to the cup 16 by welding and is screw threaded about the periphery of the plate 15. The tubes 22 enter at them upper end into the pumping chamber above the piston 13 through a port 34.

The motor cylinder 10 has its lower end secured into a head 35. This head is provided withvalves 36 similar in construction to the valves 30 shown at the inlet to the pumping chamber. A casing 37 is threaded about a portion of the head as shown at -.38. A head 39 is welded or otherwise secured to the top of the casing 37 The top and the casing rovide a chamber 44 about the motor cyhn er 10.

The head 35 is secured to the plate 15 by bolts, holes 48 for this purpose being shown in Figure 3. Pressure fluid from any suitable source is delivered to the motor cylinder through pipes 40 and 42 entering the cylinder above the piston through the port 41 and into the cylinder below the piston to a port 43. An outlet pipe is connected to the head 39. a

In operation motive fluid is supplied to the cylinder 10 through the pipes 40 and 42. On the down stroke pressure fluid enters through pipe 40 and port 41 to the chamber above the piston 12. During the down stroke pipe 42 is open to the exhaust so that fluid below the piston 12 may exhaust through this line. Through mechanism not shown, but well known in this art pressure fluid is switched to enter through pipe 42 and port 43 to the chamber below the piston 12 to operate a return stroke. At this time fluid above the piston 12 exhausts through the line 40.

pumping piston 13 is operated. Upon the down stroke fluid in the chamber beneath the piston 13 is forced out throu h the port 23 and the tubes 21 past the chec valve 36 into the chamber 44, and fluid is drawn in above the piston 13 through the check valve 30 and- 'tubes 22 and port 34. On the upward or return stroke fluid is drawn through check valve 30 into the chamber beneath the iston 13 and fluid above the piston 13 is orced out through the port 34 and past the check valves 36 into chamber 44. When the chamber 44 is filled with fluid, as it will be after a few strokes, the fluid then is passed out through pipe 45 to the point to which it is to be delivered.

0 It will be obvious to those skilled in the art that various changes may be made in my device without departing from the spirit of the invention and therefore I do not limit myself to what is shown in the drawings and described in the specification, but only as indicatcd by the appended claims.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is:

1. A double acting pump having a motor and a pumping cylinder, a piston in each cylinder connected by a common operating piston rod, pumping chambers in the pumping cylinder on opposite sides of the piston in said cylinder, a plurality of longitudinal passages surrounding said pumping cylinder,

some of said passages being connected to one of said pumping chambers and the other passages connected to the other pumping chamber to provide inlets and outlets to the said chambers and an outlet chamber surrounding said motor cylinder in communication with said longitudinal passages, substantially as set forth.

.2. A double acting pump having a motor cylinder and a pumping cylinder with operating and pumping pistons in their respec tive cylinders, said pistons being connected by a common piston rod, a head secured to the pumping cylinder, inlet passages through said head, said passages having check valves mounted therein, said pumping cylinder having pumping chambers ateach side of the piston, longitudinal tubes secured in said head to provide fluid connections for conducting fluid into and out of the said pumping chambers, said passages communicating with an outlet chamber surrounding the motor cylinder, substantially as set forth.

3. A double acting pump of the kind described comprising a motor cylinder and a pumping cylinder positioned in axial alignment with each other, a casing surrounding the motor cylinder and a separate casing surrounding the pumping cylinder, check valves between chambers formed by the said casings and the said cylinders, a head secured on said umping cylinder and the casing surroun 'ng it, tubes secured in said head, some of said tubes communicatin with one end of the pum ing chamber an the other tubes with the ot er end of the pumping chamber to provide fluid inlet and outlet passages to the pumping chambers at each side of the pumpin piston, and means for supplying motive uid to the said motor cylinder for operating the pumping piston, substantially as set forth.

4. A double acting pump comprising a cylinder having a piston movable therein, means for operating said piston, a head secured on said cylinder, a casing surrounding said cylinder secured in said head, check valves in said head, tubes secured in said head, some of said tubes communicating with the cylinder at one side of the piston, other tubes communicating with the cylinder at the other side of the piston, and check valves controlling outlets from said tubes, substantially as set forth.

In witness whereof, I have hereunto set my hand at Tulsa, Oklahoma, this fifteenth day of September, A. D. ninteen hundred and thirty-one.

CHARLES G. BOONE.

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