EP1200738B1 - Pumpenanordnung zum pumpen einer flüssigkeit aus einem tank oder behälter - Google Patents

Pumpenanordnung zum pumpen einer flüssigkeit aus einem tank oder behälter Download PDF

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Publication number
EP1200738B1
EP1200738B1 EP00938577A EP00938577A EP1200738B1 EP 1200738 B1 EP1200738 B1 EP 1200738B1 EP 00938577 A EP00938577 A EP 00938577A EP 00938577 A EP00938577 A EP 00938577A EP 1200738 B1 EP1200738 B1 EP 1200738B1
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EP
European Patent Office
Prior art keywords
pump
pumping
driving shaft
auxiliary
tank
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.)
Expired - Lifetime
Application number
EP00938577A
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English (en)
French (fr)
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EP1200738A1 (de
Inventor
Lau Halkjaer
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.)
Svanehoj Danmark A/S
Original Assignee
Hamworthy Svanehoj AS
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.)
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Application filed by Hamworthy Svanehoj AS filed Critical Hamworthy Svanehoj AS
Publication of EP1200738A1 publication Critical patent/EP1200738A1/de
Application granted granted Critical
Publication of EP1200738B1 publication Critical patent/EP1200738B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • F04B23/103—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type being a radial piston pump
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/14—Combinations of two or more pumps the pumps being of different types at least one pump being of the non-positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D31/00—Pumping liquids and elastic fluids at the same time

Definitions

  • the present invention relates to a pumping arrangement for pumping a liquid product from a tank or container.
  • FR 548,486 discloses a pumping arrangement comprising a centrifugal pump and a piston pump, which pumps are driven by a common driving shaft.
  • the piston pump is active during the first part of a pumping operation for sucking liquid to a level above the centrifugal pump. Thereafter, the piston pump is inactivated, and the centrifugal pump becomes active.
  • the driving shaft constantly drives both of the pumps.
  • WO 97 27403 discloses ah unloading pump arrangement positioned in a well of a cargo tank.
  • This pump arrangement comprises a main pump, which is a centrifugal pump, and an auxiliary pump in the form of a conical sleeve.
  • the sleeve-like auxiliary pump extends downwardly from and is driven by the impeller of the main pump. Also in this case the auxiliary pump is driven also when the main pump is operating and vice versa.
  • the present invention provides a pumping arrangement, which is able to pump liquid from a container or tank and to empty it almost completely, and which may be made and/or operated more simple and economical than the known pumping arrangements discussed above.
  • the present invention provides a pumping arrangement for pumping a liquid product from a tank or container and comprising a rotary, high capacity main pump to be submerged in the product, a rotary driving motor for driving the rotary main pump via a driving shaft, an auxiliary positive pump for pumping a residual amount of said liquid product from the tank or container, and means for selectively drivingly connecting the auxiliary pump to the driving shaft of the main pump.
  • the auxiliary pump may be connected to the driving shaft only when the auxiliary pump is needed. This is possible because operation of the high capacity main pump and of the auxiliary pump is not required at the same time.
  • the main pump may be any high capacity rotary pump. In the preferred embodiment, however, the main pump is a centrifugal pump, but may, for example, also be a gear pump.
  • the auxiliary pump may be any pump, which able to efficiently pump a mixture of liquid and gas. However, preferably the auxiliary pump is a piston pump, but may, alternatively, be any other positive pump.
  • the common driving motor may be a pneumatic or hydraulic motor, which may be submerged in or positioned above the upper level of the liquid product being pumped.
  • the driving motor is an electric motor.
  • Such motor may be submerged, but is preferably arranged above the liquid level in the tank or container.
  • the auxiliary pump need not be submerged in the liquid product, but may be positioned above the upper liquid level provided that the height, in which the auxiliary pump is positioned above the bottom of the tank or container or above the inlet end of the suction tube of the pump, is sufficiently small to allow the pump to efficiently pump a liquid product from the bottom of the tank. It is preferred, however, that the auxiliary pump is adapted to be submerged in the liquid product to be pumped.
  • the means for interconnecting the auxiliary pump to the driving shaft of the main pump may be of any kind, such as mechanical and/or electrical.
  • the means for bringing the driving shaft into and out of driving engagement with the pump may be operated mechanically or electrically by an operator, or they may be operated automatically, for example by a level detector generating an activating signal when the liquid level has reached a predetermined low value.
  • the main pump may be disengaged from the driving motor when the auxiliary pump is drivingly interconnected with the driving shaft.
  • the main pump and the auxiliary pump may be operating at the same time.
  • the means for interconnecting the auxiliary pump to the driving shaft of the main pump may be activated by reversing the direction of rotation of the driving shaft. In this case the impeller of the main pump will rotate, but not be active.
  • the pumping arrangement may comprise a device for driving the auxiliary pump.
  • This device may be adapted to automatically become disengaged from the driving shaft when this shaft is being rotated in one direction to drive the main pump, and to become engaged with the driving shaft when the direction of rotation is reversed.
  • the auxiliary pump is activated while the main pump is idling.
  • the interconnecting means may comprise an annular member arranged loosely around the driving shaft and means for selectively locking the annular member to the driving shaft.
  • the locking means may be activated manually or automatically as mentioned above.
  • the outer peripheral surface of the annular member may define an eccentric or a cam surface for reciprocatingly driving a piston of the auxiliary pump.
  • the automatic activation of the locking means is obtained by means of a ratchet device.
  • the locking means may be activated automatically by reversing the rotational direction of the driving motor or the driving shaft.
  • the pumping arrangement may comprise ratchet teeth formed on an annular end surface part of the annular member and at least one pawl member arranged axially opposite to the ratchet teeth and being connected to the driving shaft so as to rotate together therewith.
  • the pawl members may be of any known type.
  • at least one pawl member may be a pin-like member extending from and movably arranged in an axial bore, the pin-like member being biased into engagement with the ratchet teeth.
  • the auxiliary pump may be of any conventional type, whether single or double acting.
  • each piston of the auxiliary piston pump has a peripheral outer seal dividing the cylinder space into smaller and a larger volume pumping chambers, the larger volume pumping chamber having inlet and outlet valves associated therewith, and the outlet valve communicating permanently with the smaller volume pumping chamber, whereby the smaller volume pumping chamber may function as a buffer chamber.
  • the discharge flow from a pump of this type is less pulsating than when a conventional piston pump is used.
  • Fig 1 shows a pumping system or pumping arrangement of the known type used as a cargo pump for pumping a liquid product 10, such as petroleum products or liquid chemicals from a tank or container 11 in a tanker, a barge or another vessel.
  • the pumping system comprises a centrifugal pump 12 submerged in the liquid 10.
  • the pump 12 has an inlet opening 13, which is positioned in a depression 14 formed in the bottom of the tank or container 11.
  • a discharge or outlet tube 15 extends upwardly from the centrifugal pump to a flanged end 16 outside the tank 11.
  • the centrifugal pump 12 is driven by an electric motor 17, which is positioned outside the tank 11, and which is drivingly connected to the impeller of the pump 12 by means of a driving shaft extending trough a vertically arranged cylindrical, oil-filled housing 18.
  • the whole pumping system forms a unit, which is mounted on a cover or lid 20.
  • the cover 20 is detachably connected to a collar 21 defining a well opening in the top wall of the tank 11. This means that the whole pumping unit may be removed from the tank 11 by releasing the cover 20 from the collar 21.
  • the centrifugal pump 12 is not able to empty the tank 11 completely. Therefore, in order to comply with international regulations regarding the amount left in the cargo tank when the tank is flushed or cleaned the conventional pumping system described may further be provided with a stripping facility requiring supply of compressed air or nitrogen. As another possibility, the system may include a separate stripping pump, which may be a double-acting, submerged piston pump (not shown). The outlet of the stripping pump may then be connected to an outlet or stripping conduit shown in Fig. 1.
  • Figs 2 and 3 illustrate how the pumping system shown in Fig. 1 can be modified so as to form an embodiment of the pumping arrangement according to the invention.
  • Fig. 2 shows the centrifugal pump 12 having an impeller 23, which is fastened to the lower end of the driving shaft 24, the other end of the shaft being connected to the electric motor 17.
  • the shaft 24 is mounted rotatably within the housing 18 by means of ball bearings 25 and may be divided into separable sections, which are interconnected by a spline connection 26.
  • the inner space of the cylindrical housing 18 is oil-filled, and an air-filled space 27 is defined around the driving shaft 24 and between an upper sealed oil-filled space and a lower sealed space.
  • the space 27 is connected to the purging conduits 19. A possible leakage may be detected by blowing compressed air through the space 27 via the conduits 19.
  • the pumping arrangement shown in Figs. 2 and 3 comprises a piston pump 29 having a frame 30 which is connected to the outer side of the housing 18 by bolts or similar releasable fastening means.
  • the frame 30 defines a pump cylinder 31 in which a piston 32 may reciprocate.
  • the piston 32 is driven by an annular driving member 33, which is positioned around a section of the driving shaft 24 so as to be rotatable in relation thereto.
  • the outer peripheral surface of the driving member 33 is cylindrical. However, the axis of the peripheral surface is offset in relation to the axis of the driving shaft 24 so as to define an eccentric.
  • the outer peripheral surface of the driving member 33 co-operates with a surrounding bearing ring 34, which is connected to the piston by means of a piston rod 35 comprising a movable link 36.
  • the link 36 is arranged within a space 37, which is interconnected with the oil-filled space within the cylindrical housing 18, and the piston rod 35 extends out from the space 37 through a bore including annular seals.
  • this bore comprises an air-filled space 38, which may be connected with purging conduits 39 performing a function similar to that of the purging conduits 19 and the space 27 mentioned above.
  • An annular connecting member 40 is arranged around the driving shaft 24 and is connected thereto by means of a key 41.
  • the connecting member has a number of axial bores opening into the lower end surface of the connecting member 40, and each of these bores receives a connecting pin 42 with a sliding fit.
  • the pins 42 are biased by gravity and possibly also by spring means positioned within the pin receiving bores towards an extended position in which the outer free ends of the pins are engaging with the adjacent upper end surface of the annular driving member 33.
  • This end surface has an annular arrangement of ratchet teeth 43 formed thereon for co-operation with the connecting pins 42.
  • the ratchet teeth are shaped such that the driving shaft 24 may rotate freely in relation to the driving member 33 in the usual rotational direction during operation of the centrifugal pump 12 while the driving shaft 24 is drivingly interconnected with the annular driving member 33 by the ratchet device 42, 43 when the shaft is rotated in the opposite direction.
  • the pins 42 could be replaced by other types of pawl members movably mounted on the driving member 33.
  • the piston pump 29 has a suction tube or an inlet tube 44 having its free end positioned in the depression 14 and an outlet tube 45.
  • the pump 29 is a kind of double-acting pump having two cylinder chambers, namely a pumping chamber 46 and an auxiliary chamber or buffer chamber 47.
  • the pumping chamber 46 is connected to the inlet tube 44 via a suction valve or inlet valve 48 and to the outlet tube 45 via a pressure valve or outlet valve 48.
  • the auxiliary chamber or buffer chamber 47 is permanently connected to the outlet tube 45 via a passage 50. Because the auxiliary chamber 47 is increasing in volume when the volume of the pumping chamber is decreasing and vice versa the chamber 47 may serve as a buffer chamber reducing the pressure pulse height of the pumped fluid flow.
  • the pumping arrangement or system described above with reference, to Figs. 2 and 3 operates as follows:
  • the electric motor 17 is started so as to operate the centrifugal pump 12 in the usual manner, whereby almost all the liquid 10 is pumped out of the tank 11.
  • the centrifugal pump 12 is operative the piston pump 29 is inoperative, because the driving shaft 24 is rotating in such a direction that the connecting pins 42 are not in driving engagement with the ratchet teeth 43.
  • the operator may reverse the rotational direction of the motor 17 and of the driving shaft 24.
  • the main pump need not be a centrifugal pump, but may be any other type of high capacity pump.
  • the piston pump may be replaced by any other type of positive pump, and the ratchet device used for coupling the auxiliary pump 29 to the driving shaft 24 may be replaced by any other mechanical and/or electrical coupling means which may be activated manually or automatically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Claims (23)

  1. Verfahren zum Pumpen eines flüssigen Produkts (10) aus einem Tank oder Behälter (11) mittels einer rotierenden Hochleistungs-Hauptpumpe (12) und einer Hilfsansaugpumpe (29), wobei das Verfahren umfaßt:
    Eintauchen der Hauptpumpe (12) in das Produkt,
    Antreiben der rotierenden Hauptpumpe über eine Antriebswelle (24) mittels eines Rotationsantriebsmotors (17), um nahezu das gesamte flüssige Produkt aus dem Tank oder Behälter (11) zu pumpen, während die Hilfspumpe inaktiv ist, und
    Pumpen einer Restmenge des flüssigen Produkts aus dem Tank oder Behälter mit Hilfe der Hilfspumpe (29) durch Aktivieren von Verbindungsmitteln (42, 43) zur wahlweisen antriebsmäßigen Verbindung der Hilfspumpe (29) mit der Antriebswelle (24) der Hauptpumpe (12).
  2. Verfahren nach Anspruch 1, bei welchem die Hauptpumpe eine Zentrifugalpumpe (12) oder eine Getriebepumpe ist.
  3. Verfahren nach Anspruch 1 oder 2, bei welchem die Hilfspumpe eine Kolbenpumpe (29) oder andere Ansaugpumpe ist.
  4. Verfahren nach einem der Ansprüche 1 bis 3, bei welchem der Antriebsmotor ein Elektromotor (17) ist, der oberhalb des Flüssigkeitsniveaus in dem Tank oder Behälter (11) angeordnet ist.
  5. Verfahren nach einem der Ansprüche 1 bis 4, bei welchem die Hilfspumpe (29) in das flüssige Produkt (10) eingetaucht ist.
  6. Verfahren nach einem der Ansprüche 1 bis 5, bei welchem das Verbindungsmittel zum Verbinden der Hilfspumpe (29) mit der Antriebswelle (24) der Hauptpumpe (12) aktiviert wird durch Umkehren der Richtung der Drehung der Antriebswelle.
  7. Verfahren nach einem der Ansprüche 1 bis 6, bei welchem die Antriebsmittel ein ringförmiges Teil (33) umfassen, das lose um die Antriebswelle (24) angeordnet ist, sowie Mittel (42, 43) zum wahlweisen Verriegeln des ringförmigen Teils an der Antriebswelle.
  8. Verfahren nach Anspruch 7, bei welchem die äußere Umfangsoberfläche des ringförmigen Teils (33) einen Exzenter oder eine Kurvenfläche definiert, mit deren Hilfe ein Kolben (32) der Hilfspumpe (29) hin und her angetrieben wird.
  9. Verfahren nach Anspruch 7 oder 8, bei welchem die Verriegelungsmittel eine Sperr- bzw. Schaltvorrichtung (42, 43) umfassen.
  10. Verfahren nach Anspruch 9, bei welchem Schaltzähne (43) auf einem ringförmigen Endoberflächenteil des ringförmigen Teils (33) ausgebildet sind und wenigstens ein Sperrelement (32), axial den Schaltzähnen gegenüberliegend angeordnet und mit der Antriebswelle verbunden ist, um mit dieser zusammen zu drehen.
  11. Verfahren nach Anspruch 10, bei welchem wenigstens ein Sperrelement ein stiftartiges Element (42) ist, das sich von einer axialen Bohrung erstreckt und darin beweglich ist, wobei das stiftartige Element in Eingriff mit den Schaltzähnen (43) vorgespannt ist.
  12. Verfahren nach einem der Ansprüche 3-11, bei welchem jeder Zylinderraum der Hilfskolbenpumpe (29) durch eine umfangsmäßige Außendichtung des Kolbens (32) unterteilt ist in Pumpenkammern (47, 46) kleineren und größeren Volumens, wobei die Pumpenkammer (46) größeren Volumens damit in Verbindung stehende Einlaß- und Auslaßventile (48, 49) hat und das Auslaßventil permanent mit der Pumpenkammer kleineren Volumens kommuniziert, wobei die Pumpenkammer kleineren Volumens als Pufferkammer wirken kann.
  13. Pumpenanordnung zum Pumpen eines flüssigen Produkts (10) aus einem Tank oder Behälter (11) und umfassend:
    eine rotierende Hochleistungs-Hauptpumpe (12), die in das Produkt eingetaucht werden kann.
    einen Rotationsantriebsmotor (17) zum Antreiben der rotierenden Hauptpumpe über eine Antriebswelle (24), eine Hilfsansaugpumpe (29) zum Pumpen einer Restmenge des flüssigen Produkts aus dem Tank oder Behälter, und
    Verbindungsmittel (42, 43) zum wahlweisen antreibenden Verbinden der Hilfspumpe (29) mit der Antriebswelle (24) der Hauptpumpe (12), wobei die Verbindungsmittel derart ausgelegt sind, daß sie durch Umkehr der Richtung der Drehung der Antriebswelle aktiviert werden.
  14. Pumpenanordnung nach Anspruch 13, bei welcher die Hauptpumpe eine Zentrifugalpumpe (12) oder eine Getriebepumpe ist.
  15. Pumpenanordnung nach Anspruch 13 oder 14, bei welcher die Hilfspumpe eine Kolbenpumpe (29) oder andere Ansaugpumpe ist.
  16. Pumpenanordnung nach einem der Ansprüche 13-15, bei welcher der Antriebsmotor ein Elektromotor (17) ist, der oberhalb des Flüssigkeitsniveaus in dem Tank oder Behälter (11) angeordnet ist.
  17. Pumpenanordnung nach einem der Ansprüche 13 bis 16, bei welcher die Hilfspumpe (29) derart ausgelegt ist, daß sie in das flüssige Produkt (10) eintauchbar ist.
  18. Pumpenanordnung nach einem der Ansprüche 13-17, bei welcher die Verbindungsmittel ein ringförmiges Teil (33) umfassen, das lose um die Antriebswelle (24) angeordnet ist, sowie Mittel (42, 43) zum wahlweisen Verriegeln des ringförmigen Teils an der Antriebswelle.
  19. Pumpenanordnung nach Anspruch 18, bei welcher die äußere Umfangsoberfläche des ringförmigen Teils (33) einen Exzenter oder eine Kurvenfläche definiert zum Hin- und Herantrieb eines Kolbens (32) der Hilfepumpe (29).
  20. Pumpenanordnung nach Anspruch 18 oder 19, bei welcher die Verriegelungsmittel eine Sperr- bzw. Schaltvorrichtung (42, 43) umfassen.
  21. Pumpenanordnung nach Anspruch 20, umfassend Schaltzähne (43), die auf einem ringförmigen Endoberflächenteil des ringförmigen Teils (33) ausgebildet sind, sowie wenigstens ein Sperrelement (32), das den Schaltzähnen axial gegenüberliegend angeordnet und mit der Antriebswelle verbunden ist, um mit dieser zusammen zu drehen.
  22. Pumpenanordnung nach Anspruch 21, bei welcher wenigstens ein Sperrelement ein stiftartiges Element (42) ist, das sich von einer axialen Bohrung erstreckt und darin beweglich angeordnet ist, wobei das stiftartige Element in Eingriff mit den Schaltzähnen (43) vorgespannt ist.
  23. Pumpenanordnung nach einem der Ansprüche 15-22, bei welcher jeder Kolben (32) der Hilfskolbenpumpe (29) eine umfangsmäßige Außendichtung hat, welche den Zylinderraum in Pumpenkammern (47, 46) kleineren und größeren Volumens unterteilt, wobei die Pumpenkammer (46) größeren Volumens damit in Verbindung stehende Einlaß- und Auslaßventile (48, 49) hat und das Auslaßventil permanent mit der Pumpenkammer kleineren Volumens kommuniziert, wobei die Pumpkammer kleineren Volumens als Pufferkammer wirken kann.
EP00938577A 1999-06-07 2000-06-06 Pumpenanordnung zum pumpen einer flüssigkeit aus einem tank oder behälter Expired - Lifetime EP1200738B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK80099 1999-06-07
DKPA199900800 1999-06-07
PCT/DK2000/000302 WO2000075518A1 (en) 1999-06-07 2000-06-06 A pumping arrangement for pumping a liquid product from a tank or container

Publications (2)

Publication Number Publication Date
EP1200738A1 EP1200738A1 (de) 2002-05-02
EP1200738B1 true EP1200738B1 (de) 2003-08-13

Family

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EP00938577A Expired - Lifetime EP1200738B1 (de) 1999-06-07 2000-06-06 Pumpenanordnung zum pumpen einer flüssigkeit aus einem tank oder behälter

Country Status (7)

Country Link
EP (1) EP1200738B1 (de)
JP (1) JP4237438B2 (de)
AT (1) ATE247229T1 (de)
DE (1) DE60004533D1 (de)
DK (1) DK1200738T3 (de)
NO (1) NO332074B1 (de)
WO (1) WO2000075518A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015135020A1 (en) * 2014-03-11 2015-09-17 Pumpeng Pty Ltd Submersible pump and method of pumping fluid

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005013684A1 (de) * 2005-03-17 2006-09-21 Flux-Geräte GmbH Behälterpumpe, vorzugsweise zum Fördern von Harnstoff
DE102006027319B4 (de) * 2006-06-13 2014-05-22 Wilo Ag Kreiselmotorpumpe mit drehrichtungsbestimmtem Anlauf
RU2669634C1 (ru) * 2017-11-10 2018-10-12 Публичное акционерное общество "ОДК - Уфимское моторостроительное производственное объединение" (ПАО "ОДК-УМПО") Способ работы нагнетающего насоса маслоагрегата газотурбинного двигателя (ГТД) и нагнетающий насос маслоагрегата ГТД, работающий этим способом, шестерённое колесо нагнетающего насоса маслоагрегата ГТД, блок подпятников нагнетающего насоса маслоагрегата ГТД

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR548486A (de) * 1923-01-15
GB216570A (en) * 1923-02-27 1924-05-27 Henry Fairbrother Improvements in and relating to pumps used in connection with internal combustion engines
US2071913A (en) * 1935-12-07 1937-02-23 B F Sturtevant Company Inc Lubrication system
CH666520A5 (en) * 1985-06-24 1988-07-29 Egger & Co Pump to empty flooded cellar - has non-clogging centrifugal pump below self-priming rotary vane pump
NO301112B1 (no) * 1996-01-26 1997-09-15 Mohn Fusa As Frank Anordning ved lossepumpe som er neddykkbar i lasten i en skipslastetank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015135020A1 (en) * 2014-03-11 2015-09-17 Pumpeng Pty Ltd Submersible pump and method of pumping fluid
AU2015230662B2 (en) * 2014-03-11 2017-08-24 Pumpeng Pty Ltd Submersible pump and method of pumping fluid
US10514047B2 (en) 2014-03-11 2019-12-24 Pumpeng Pty Ltd Submersible pump and method of pumping fluid

Also Published As

Publication number Publication date
EP1200738A1 (de) 2002-05-02
JP2003501589A (ja) 2003-01-14
DK1200738T3 (da) 2003-09-08
NO332074B1 (no) 2012-06-18
NO20015978L (no) 2001-12-06
DE60004533D1 (de) 2003-09-18
JP4237438B2 (ja) 2009-03-11
ATE247229T1 (de) 2003-08-15
NO20015978D0 (no) 2001-12-06
WO2000075518A1 (en) 2000-12-14

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