EP4219943A1 - Pompe à piston - Google Patents

Pompe à piston Download PDF

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Publication number
EP4219943A1
EP4219943A1 EP23153927.1A EP23153927A EP4219943A1 EP 4219943 A1 EP4219943 A1 EP 4219943A1 EP 23153927 A EP23153927 A EP 23153927A EP 4219943 A1 EP4219943 A1 EP 4219943A1
Authority
EP
European Patent Office
Prior art keywords
piston
hollow cylinder
cylinder
hollow
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23153927.1A
Other languages
German (de)
English (en)
Inventor
Eduard J. Alesi
Giuseppe Pellegrino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ieg Technologie GmbH
Hydrogea Srl
Original Assignee
Ieg Technologie GmbH
Hydrogea Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ieg Technologie GmbH, Hydrogea Srl filed Critical Ieg Technologie GmbH
Publication of EP4219943A1 publication Critical patent/EP4219943A1/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
    • F04B9/105—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/144—Adaptation of piston-rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/1095—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers having two or more pumping chambers in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
    • F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
    • F04B9/113—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting liquid motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/125—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting elastic-fluid motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
    • F04B9/1295—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers having two or more pumping chambers in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
    • F04B9/131—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members
    • F04B9/133—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by a double-acting elastic-fluid motor

Definitions

  • the invention relates to a piston pump.
  • Piston pumps of this type are generally used for pumping a transport fluid, with the transport fluid being formed in particular from water.
  • Such piston pumps can generally be used for pumping water.
  • Another application is the use in groundwater circulation systems. In such systems, groundwater may be pumped from earthen zone layers and then fed to purification systems which may be located above ground. It is also possible to return the cleaned groundwater to the ground.
  • a pressure-suction cylinder pump consisting of a piston tube, a cylinder tube and a jacket tube.
  • three tubes are arranged concentrically to one another, with the piston tube being kept at a distance from the cylinder tube via a piston tube seal and a piston seal, and the cylinder tube being centrally spaced from the jacket tube by packers.
  • a plurality of pressure flow passage openings are provided on the circumference of the piston tube, and a flap valve is attached to the end face of the piston pipe, or a plurality of flap valves are attached to the circumference of the piston pipe.
  • a flap valve is attached to the cylinder tube and several flap valves are attached to the circumference.
  • the invention is based on the object of providing a piston pump which, with a simple structure, has a high level of functionality.
  • the invention relates to a piston pump with a hollow cylinder forming a piston housing and a piston which can be displaced in the axial direction in the hollow cylinder.
  • the piston has a piston hollow cylinder which has an outlet opening on an upper side and which has a first mechanical locking element on its lower end.
  • the hollow cylinder has a base with a second mechanical blocking element integrated therein, via which a transport fluid can be introduced into a pressure chamber of the hollow cylinder or discharged from it.
  • the first mechanical blocking element is adjacent to the pressure chamber.
  • a pneumatic or hydraulic drive is provided, by means of which opening and closing movements can be specified in order to convey the transport fluid through the hollow piston cylinder.
  • the piston pump according to the invention can be used flexibly for pumping different transport fluids, which in principle can also be formed by gases.
  • the piston pump according to the invention is advantageously used for pumping liquids, which can have different viscosities.
  • the piston pump according to the invention is used particularly advantageously for pumping water.
  • the piston pump can be used to pump groundwater, in which case the piston pump can be part of a groundwater circulation system that can be used to clean groundwater.
  • An essential advantage of the piston pump according to the invention is that the pumping processes can take place without generating large pressure differences. This can reduce precipitation when used in groundwater circulation systems.
  • the piston pump only has a hollow cylinder forming a piston housing and a piston in the form of a hollow piston cylinder that can be displaced in the axial direction and has an outlet opening on the top for introducing or discharging transport fluid and a first mechanical blocking element on the lower edge.
  • a second mechanical locking element is located in the bottom of the hollow cylinder.
  • the opening and closing movements are given by the pneumatic or hydraulic drive, the operation of which is advantageously controlled by a control unit.
  • the operation of the piston pump can be specified and controlled flexibly.
  • the operation of the piston pump is reversible, in that, depending on the operating mode, which is specified with the control unit, transport fluid is conveyed up or down in the hollow piston cylinder.
  • groundwater When used in a groundwater circulation system, groundwater can thus be conveyed upwards from a groundwater reservoir via the hollow piston cylinder in order to purify it. Cleaned groundwater can also be returned to the groundwater reservoir.
  • the functioning of the piston pump according to the invention is generally such that working fluid of the pneumatic or hydraulic drive can be supplied to different chambers of the mechanical unit of the piston pump, whereby pressure differences are generated within different chambers, which lead to opening or closing movements of the mechanical blocking elements, whereby the Pumping processes can be specified exactly.
  • the hollow cylinder is divided by a partition into an upper and lower space, with a working fluid of the pneumatic or hydraulic drive being able to be introduced only in the upper space.
  • the working fluid consists of compressed air. If a hydraulic drive is provided, the working fluid is a hydraulic fluid.
  • the piston pump is also advantageously designed in such a way that the piston has two piston plungers which are fastened on the outside of the hollow piston cylinder and adjoin the inner wall of the hollow cylinder and can be displaced with respect to it.
  • An upper piston piston is advantageous, which is arranged in the upper spatial area of the hollow cylinder, as a result of which it is divided into an upper and lower working chamber.
  • An inlet for the working chamber is provided in the wall of the hollow cylinder both in the area of the upper working chamber and in the area of the lower working chamber.
  • the mechanical blocking elements are advantageously designed in the form of flaps.
  • movably mounted balls can also be provided as mechanical blocking elements.
  • a lower piston plunger is also advantageously arranged in the lower spatial area of the hollow cylinder and divides it into the pressure chamber and another chamber.
  • the lower piston plunger is arranged at the lower edge of the piston hollow cylinder.
  • openings are provided above the lower piston ram in the wall of the hollow piston cylinder, which connect the chamber to the interior of the hollow piston cylinder.
  • the pressure chamber is coupled via a second mechanical blocking element to a reservoir with transport fluid, in particular to groundwater in a ground area.
  • pumping processes can be controlled in such a way that transport fluid, such as water, in particular groundwater, is fed to the pressure chamber and then conveyed upwards via the piston hollow cylinder and is discharged via the upper opening of the piston hollow cylinder, for example to clean the groundwater in cleaning systems arranged above ground.
  • transport fluid such as water, in particular groundwater
  • a reverse pumping process can also be implemented, in which the transport fluid is introduced into the hollow piston cylinder via the upper opening of the hollow cylinder, fed to the pressure chamber and discharged from there when the second mechanical blocking element is open.
  • the further chamber can be used as an intermediate store, transport fluid being supplied to or discharged from this further chamber via the openings in the wall.
  • the partition runs in a plane oriented perpendicular to the longitudinal axis of the hollow cylinder.
  • the partition wall has a central bore in which the hollow piston cylinder is guided in a displaceable manner.
  • This seal decouples the lower and upper spatial area of the hollow cylinder in a gas-tight and liquid-tight manner.
  • the boundary surfaces between the piston plungers and the inner wall of the hollow cylinder are also advantageously sealed.
  • the working chambers with the upper piston piston and the pressure chamber and the further chamber with the lower piston piston are thus also decoupled in a gas-tight and liquid-tight manner.
  • a pumping process with a trigger phase is advantageously initiated, in which working fluid is introduced into the lower working chamber.
  • the piston hollow cylinder rises and a negative pressure is generated in the pressure chamber, as a result of which the second mechanical blocking element in the bottom of the hollow cylinder is opened and transport fluid flows into it.
  • the second mechanical blocking element is closed and the first mechanical blocking element in the hollow piston cylinder is opened.
  • Got through the open first mechanical blocking element Transport fluid into the openings in the wall of the piston hollow cylinder into the further chamber.
  • the hollow piston cylinder is moved upwards by introducing working fluid into the lower working chamber, the first mechanical locking element on the hollow piston cylinder being closed.
  • the pressure in the further chamber is increased by the upward movement of the piston hollow cylinder.
  • Transport liquid flows into the hollow piston cylinder via the openings in the wall of the hollow piston cylinder and is conveyed upwards in the latter in the direction of the opening on the upper side of the hollow piston cylinder.
  • transport fluid is pumped upwards over the hollow piston cylinder and discharged through its upper opening.
  • the pressure in the pressure chamber is reduced by the upward movement of the piston hollow cylinder, whereby the second mechanical blocking element in the bottom of the hollow cylinder is opened, so that transport fluid flows into the pressure chamber via the opened second mechanical blocking element.
  • FIG. 1 shows a block diagram of the piston pump 1 according to the invention.
  • the piston pump 1 has a mechanical unit 2 and an associated pneumatic drive 3 .
  • a hydraulic drive can be provided instead of a pneumatic drive.
  • the pneumatic drive is controlled with a control unit 4, which can be formed by a microprocessor system, a PLC control or the like.
  • the pneumatic drive can be a pneumatic cylinder with a ram that can be moved therein and that is driven by a mechanical drive.
  • the hydraulic drive can have a hydraulic cylinder whose movable ram is driven by a mechanical drive.
  • the mechanical drive can have a connecting rod, which in particular can also be moved with an electric motor.
  • the illustrated mechanical units 2 of the piston pump 1 has a piston housing in the form of a hollow cylinder 5 which is closed off on the underside with a bottom 6 and on the top with a cover 7 .
  • a piston with a piston hollow cylinder 8 is guided in the hollow cylinder 5 .
  • the piston hollow cylinder 8 runs in the axial direction of the hollow cylinder 5 , the longitudinal axis of the piston hollow cylinder 8 coinciding with the longitudinal axis of the hollow cylinder 5 .
  • the upper end of the piston hollow cylinder 8 projects beyond the top of the hollow cylinder 5 .
  • the piston hollow cylinder 8 is mounted in the hollow cylinder 5 so that it can be displaced in the axial direction.
  • the piston hollow cylinder 8 is mounted in a hole in the cover 7 of the hollow cylinder 5 .
  • the boundary surface between the hollow piston cylinder 8 and the edge of the bore is sealed in a gas-tight and liquid-tight manner.
  • the upper side of the hollow piston cylinder 8 is open and forms an outlet opening 9, via which a transport fluid to be conveyed can be discharged from the hollow piston cylinder 8 or introduced into it.
  • the transport fluid is in the Figures 2 to 5 marked with B.
  • the underside of the hollow piston cylinder 8 is closed by means of a first mechanical blocking element in the form of a flap 11 . This can be switched between an open position ( figure 4 ) and a closed position ( figures 2 , 3 , 5 ) can be moved.
  • a second mechanical blocking element in the form of a flap 11.
  • This flap 11 can also be switched between an open position ( figures 2 , 3 , 5 ) and a closed position ( figure 4 ) can be moved.
  • the interior of the hollow cylinder 5 is divided by a partition 12 into an upper and lower spatial area.
  • the partition 12 is oriented in a plane perpendicular to the longitudinal axis of the hollow cylinder 5 and is attached to the inner wall of the hollow cylinder 5 .
  • the partition wall 12 has a central bore in which the hollow piston cylinder 8 is slidably mounted. The boundary surface between the hollow piston cylinder 8 and the edge of the bore is sealed in a gas-tight and liquid-tight manner.
  • the piston also has two identically designed piston plungers 13, 14 which are fastened in the outer wall of the piston hollow cylinder 8 and can therefore be displaced with it.
  • Both piston plungers 13 , 14 are designed in the shape of circular disks and each extend in a plane oriented perpendicularly to the longitudinal axes of the hollow piston cylinder 8 .
  • the outer edge surfaces of the piston plungers 13, 14 lie tightly against the inner wall of the hollow cylinder 5 and form gas-tight and liquid-tight sealed boundary surfaces with it.
  • the upper piston ram 13 divides the upper spatial area of the hollow cylinder 5 into an upper working chamber 15 and a lower working chamber 16.
  • the sizes of the working chambers 15, 16 vary according to the positions of the upper piston ram 13.
  • the upper working chamber 15 has a first inlet 17 in the Wall of the hollow cylinder 5 on.
  • the lower working chamber has a second inlet 18 in the wall of the hollow cylinder 5 .
  • a working fluid A can be supplied to or discharged from the respective working chamber 15, 16 by the pneumatic drive via the inlets 17, 18.
  • the working fluid A consists of compressed air.
  • the working fluid A is a hydraulic fluid.
  • the lower piston plunger 14 is located at the lower edge of the piston hollow cylinder 8 and divides the lower spatial area of the hollow cylinder 5 into a pressure chamber 19 and a further chamber 20 arranged above the pressure chamber 19.
  • the sizes of the pressure chamber 19 and the further chamber 20 vary according to the position of the lower plunger 14.
  • Openings 21 are worked into the wall of the hollow piston cylinder 8 just above the lower piston plunger 14 , which establish a connection between the further chamber 20 and the interior of the hollow piston cylinder 8 .
  • FIG 2 shows a first phase of the pumping process, which forms a trigger phase. Before the start of the trigger phase, the flaps 10, 11 are still closed.
  • the trigger phase is initiated by introducing working fluid A into the lower working chamber 16 by means of the pneumatic drive via the inlet 18 .
  • a reversal phase ( figure 3 ) initiated.
  • working fluid A is discharged from the lower working chamber 16 by means of the pneumatic drive and working fluid A is fed to the upper working chamber 15, as indicated by the arrow II in figure 3 illustrated.
  • figure 4 shows the subsequent phase.
  • the upper working chamber 15 is now filled with working fluid A
  • the hollow piston cylinder 8 with the piston plunger 13, 14 moves downwards. This downward movement increases the pressure in the pressure chamber 19 into which the transport fluid B has flowed. This closes the flap 11 in the bottom 6 of the hollow cylinder 5.
  • the flap 10 opens at the lower edge of the hollow piston cylinder 8 due to the overpressure in the pressure chamber 19.
  • Transport fluid flows through the opened flap 10 into the hollow piston cylinder 8 and through the openings 21 in the wall of the hollow piston cylinder 8 into the further chamber 20.
  • the further chamber 20 is completely filled with transport fluid B as shown in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP23153927.1A 2022-02-01 2023-01-30 Pompe à piston Pending EP4219943A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202022100566.4U DE202022100566U1 (de) 2022-02-01 2022-02-01 Kolbenpumpe

Publications (1)

Publication Number Publication Date
EP4219943A1 true EP4219943A1 (fr) 2023-08-02

Family

ID=85150414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23153927.1A Pending EP4219943A1 (fr) 2022-02-01 2023-01-30 Pompe à piston

Country Status (2)

Country Link
EP (1) EP4219943A1 (fr)
DE (1) DE202022100566U1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1887886A (en) * 1931-10-24 1932-11-15 T H P Duncan Deep well pump
GB2100362A (en) * 1981-06-11 1982-12-22 Macleod Donald Ian Guy Submersible hydraulic bore and pressure or negative pressure is well pump
EP0118497B1 (fr) * 1982-09-09 1988-08-24 MACLEOD, Donald Ian Guy Pompe de forage et de puits a actionnement hydraulique
DE102011100712B4 (de) 2011-05-06 2012-09-20 IEG - Industrie-Engineering Gesellschaft mit beschränkter Haftung Die Erfindung betrifft eine Anordnung von Klappventilen 12 in koaxial gelagerten Rohren 15;16;17 zur Erzeugung von Druck- und Saugräumen 10;11 in den Endabschnitten eines linear geführten Fluid-Pumpenzylinders.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1568447A (en) 1924-12-10 1926-01-05 Valoris L Forsyth Deep-well pump
US2747511A (en) 1952-11-25 1956-05-29 Phillips Petroleum Co Deep well pump
DE1692103U (de) 1954-03-08 1955-01-27 Pleiger Maschf Paul Foerderpumpe fuer stroemende medien.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1887886A (en) * 1931-10-24 1932-11-15 T H P Duncan Deep well pump
GB2100362A (en) * 1981-06-11 1982-12-22 Macleod Donald Ian Guy Submersible hydraulic bore and pressure or negative pressure is well pump
EP0118497B1 (fr) * 1982-09-09 1988-08-24 MACLEOD, Donald Ian Guy Pompe de forage et de puits a actionnement hydraulique
DE102011100712B4 (de) 2011-05-06 2012-09-20 IEG - Industrie-Engineering Gesellschaft mit beschränkter Haftung Die Erfindung betrifft eine Anordnung von Klappventilen 12 in koaxial gelagerten Rohren 15;16;17 zur Erzeugung von Druck- und Saugräumen 10;11 in den Endabschnitten eines linear geführten Fluid-Pumpenzylinders.

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Publication number Publication date
DE202022100566U1 (de) 2023-05-03

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