US2339990A

US2339990A - Hydraulic water pump

Info

Publication number: US2339990A
Application number: US403287A
Authority: US
Inventors: Ernest W Gutsch
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-07-21
Filing date: 1941-07-21
Publication date: 1944-01-25
Anticipated expiration: 1961-01-25

Description

Jan. 25, 1944. w GUTSCH 2,339,990

HYDRAULIC WATER PUMP Filed July 21, 1941 57 i p 52 57 EML, 52 55 5| 3 3 5| 0 g 5 59 g 50 K 56 52 :j I 5| 6O J A 6T6 E. J

I 4 P F r 4 if 40 I FIG. I.

Patented Jan. 25, 1944 UNITED STATES PATENT OFFICE HYDRAULIC WATER. PUMP Ernest W. Gutsch, Viroqua, Wis. Application July 2 1, 1941, Serial No. 403,287

2 Claims.

My invention relates to an improvement in an hydraulically operated deep well pump wherein it is desired to use liquid under pressure in the operation of the pump.

It is an object of the present invention to provide a double acting deep well pump which is hydraulically operated. The principle of transmitting pressure and the multiplication of force through liquid is the principal basic function of the present invention. The transmission of vpressure through a liquid is very clearly given in the Blaise Pascal principle which states as follows: An increase of pressure on any part of a confined liquid causes an equal increase tln'oughout the liquid." By employing the Pascal principle, the present invention provides a means of operating a deep well pump by using liquid under pressure.

It is a purpose of the present invention to provide a double acting deep well pump having a double acting piston, the double acting piston being operated by pressure transmitted through liquid by means of conduit lines from a pressure plunger. The kinetic energy, which is imparted to the pressure plunger, is changed into potential energy when transmitted to the liquid through conduit lines leading to the double actarea of the double acting piston, the pressure is transmitted from the liquid to the head of the piston as kinetic energy. Through such a construction I have provided a means of operating a large piston by pressure applied to a small piston with the pressure being transmitted through liquid.

It is an object of my invention to provide a double acting deep well pump which may pump liquid at any desired depth whether it be water, oil, or the like. The pump which I have illustrated is so constructed that the liquid pumped to and from the pump cylinders will not interfere with the confined liquid used to transmit pressure to the double acting piston from the small pressure plunger.

It is a further object of my invention to provide a pair of valves located within the double acting piston which are in reality the key to the present invention. Without the valves, the liquid would pass on through the double acting piston without performing any work.

With the valves of the double piston in position, two distinct pressure areas are created within the pump cylinder. The area between the heads of the double piston communicates only with the pressure created in the pressure pump. The outside areas of the double piston communicate with the atmospheric pressure by way of an open discharge valve in the pressure pump or by way of the port below the pump cylinder reaching into the liquid.

It is a further feature of. my invention to proing piston. When the pressure enters the inner v vide a double acting piston having two working surfaces and a clearance space interposed between the two working surfaces. Within the clearance space, I provide a pair of working valves which are held in place by a spring or some other means to keep the valves in alignment with respect to one another. With the valves of the double piston in positio the transmitted pressure in the inner area of the double piston is multiplied .by, the large inner area of the clearance space of the double piston.

In the drawing forming a part of my specification:

Figure 1 is a cross-sectional view. centrally through my double acting pump.

Figure 2 is a crosssectional view taken on the line 2-2 of Figure 1.

Figure 3 is an enlarged view of the upper portion of my double acting pump.

Figure 4 is a cross-sectional view on the line 4-4 of Figure 1. 1

In Figure l of the drawing, I disclose a double acting hydraulic deep well pressure pump having the same operation as the single acting hydraulic pump. In the double acting type there occurs simultaneously a suction and discharge action of liquid with each stroke. In this case the cylinder has to be completely immersed in a liq: uid. Reference is made to Figure 4 of the drawing, which best illustrates a double acting pump. The pump D is provided with a pump cylinder E which is enclosed in a casing F. A piston 35 is slidably mounted within the pump chamber E and the piston is constructed with a top head 36 and a lower head 37. Bolt means 39 secure the heads 36 and 37 in a firm relationship, thus forming a clearance space 40 within the piston 35. A hollow rod 4| extends through the head 36 into the clearance space 40. A second hollow rod 42 extends through the head 31 into the clearance space likewise, thereby providing two ports adjacent the clearance space; A valve 43 rides within the hollow rod 4| and a similar valve 44 rides within the hollow tube 42. A spring 45 is interposed between the valves 43 and 44 which serves the purpose of keeping the valves in place and in alignment. The hollow rod 4| telescopes in and out of a cylindrical extension which projects a short distance into the passageway 15, and similarly, the hollow rod 42 telescopes in and out of a second cylindrical extension 41. The operation and the action of the rods telescoping in and out of their respective cylindrical extensions will later be described.

The uppermost part of the pump unit D is so constructed as to provide a pressure chamber 49. A plunger 50 is slidably mounted within the pressure chamber 49 and is operated in an upward and downward movement by means of a plunger rod 5|. The plunger rod 5| is slidably mounted and surrounded by stufling boxes 52, to'prevent the two

valves

55 and 55 will later be fully ex-- plained. Connected to the lower part of the pump chamber E, I have provided a pair of check valves and a passing of liquids to and from the pump chamber E. Leading from the pump chamber E is a conduit 53 which leads from the pump chamber to the discharge spout 64.

As previously explained, the pump chamber E is entirely immersed in liquid, thus enabling liquid to enter either one of two ports in order that a double pumping action may take place. The second inlet port 65 leads to a chamber 56. A valve 61 controls the passage of liquid from the chamber 66 into a second chamber 69. A passageway I is constructed leading from the second chamber 59 into the pump chamber E. Therefore, I provide a means of allowing liquid to enter the pump chamber above the piston 35 as well as below the piston.

In operation, at the beginning of the downstroke of the plunger 50 within the pressure chamber 49, valve 56 is pressed against the seat ll while liquid under pressure enters the channel 54 and forces the plunger 59 upward, pushing valve 55 from its seat 12 so that valve 55 is open for the discharge of liquid from conduit 63. Valve 43 is pushed away from its seat compressing the spring 45 and forcing valve 44 firmly against the hollow rod 42, thus shutting off any chance of liquid escaping from the clearance space 40. Therefore, the liquid under pressure from the pressure chamber 49 is forced through the pascage port 62 which controls thethe piston 35 to move upwardly, forcing the liquid above the piston out through the valve I4 up through a small passageway 14' into thepassageway 15. The liquid continues to pass on -up through the passageway 15, past the valve 55, and out through the discharge spout 64. At the same time, while liquid is being discharged above the piston, a sucking action takes place below the piston, causing liquid to passthrough the check valve 62' past the cage port 52,'intothe lower part of the pump chamber E. At the end sageway 15 to the cylindrical extension and from there through the hollow rod 4| into the clearance space 40, forcing the piston 35 to move in a downward direction, causing the hollow rod 4| to telescope out of the cylindrical extension 45. Upon the movement of the piston 35 in a downward direction, the hollow rod 42 telescopes into the cylindrical extension 41. Simultaneously, piston 35, integral with the hollow rods 4| and 42 in the cylinder, draws liquid into the chamber 65, through port 61 in the second chamber 59, and on through port 10 into the pump chamber E. At the same time, while the piston 35 is moving downwardly, it discharges liquid from the pump chamber E through the cage port 52, past the check valve 52" on up through the conduit 53, past the valve 55 and on out through the discharge spout 64. As soon as the pressure is released, valve 55 returns to-its seat 12, as does valve 43 in thepiston 35. Both the plunger 59 and the piston 35 are now at their lowermost positions.

At the return stroke, valve 55 is pressed tightly against its seat 12, while valve 55 is forced away from its seat 1| by the pressure passing through channel 53 and acting against the plunger 5|, causing the spring 59 to compress. Liquid is forced down through extension 41, through the the valve 44 to open. As the valve 44 is forced open, the spring 45 is compressed, thus pushing the valve 43 tightly against its seat. Upon such an operation, the liquid transmits pressure to the piston 35 from the pressure applied to the plunger the conduit 63, into the.

hollow rod 42, causing of the stroke, both valves 55 and 44 return to their original positions.

It will be noted that the applied pressure, which is transmitted to the clearance space of the pistons, is multiplied by the projected area of the clearance space. The applied pressure transmitted and multiplied is transmitted to the head of the pistons to be absorbed by the required force to draw and expel liquid to and from the pump cylinder. By such a construction that I have provided, liquid can be pumped from any desirable depth without any great effort.

In accordance with the patent statutes, I have described the principles of construction and operation of my pressure pump; and while I have endeavored to set forth the best embodiments thereof, I desire to have it understood that this is only illustrative of a means of carrying out my invention, and that obvious changes may be made within the scope of the following claims without departing from the spirit of my invention.

. I claim:

1. A deep well pump comprising a primary pressure pump unit at the top of the well, a water lift unit embedded in the well at the lower end thereof,passageways between said primary pressure pump unit and said water lift unit, a volume of water maintained in and filling the area of the passageways between said primary pressure pump unit and said water lift unit, a hollow piston in said water lift unit, means for directing the liquid pressure from said primary pressure pump unit to the chamber'in said hollow piston to reciprocate said piston in the pump unit to force water out of the well, a water outlet passageway, and a pair of check valves leading to said water outlet passageway adapted to open and close in accordance with the reciprocation of said piston in said pump unit, one of said check valves opening when the pressure is in one direction in said piston of said pump unit, while the other check valve closes, and vice versa when the pressure is in the other direction against the piston of said pump unit.

2. A deep well pump including a primary pressure pump unit, a water lift piston and cylinder unit embedded in the well, passageways leading from either side of the piston in said pressure unit to either side of the piston in said water lift unit, a water outlet passageway, and a pair of check valves interposed in said water outlet passageway leading from said pressure unit, whereby when said pressure unit piston is operated in one direction, pressure is directed against one of said check valves to open the same and pressure is also directed against one side of the piston in the water lift unit to force water out of the well,

. and when said pressure unit is operated in the other direction the other check valve is opened while the first check-valve is closed, and pressure is directed to the other side of the piston in the water lift unit to raise water out of the well.

ERNEST W. GU'I'SCH.