EP0358245A1 - Sewage transporting device - Google Patents

Sewage transporting device Download PDF

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Publication number
EP0358245A1
EP0358245A1 EP89120358A EP89120358A EP0358245A1 EP 0358245 A1 EP0358245 A1 EP 0358245A1 EP 89120358 A EP89120358 A EP 89120358A EP 89120358 A EP89120358 A EP 89120358A EP 0358245 A1 EP0358245 A1 EP 0358245A1
Authority
EP
European Patent Office
Prior art keywords
eccentric screw
screw pump
drive motor
pump
waste water
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.)
Withdrawn
Application number
EP89120358A
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German (de)
French (fr)
Inventor
Hans Dr. Dipl.-Ing.Eth Jaggi
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.)
Hany & Cie Ag
HAENY AND CIE AG
HANY AND CIE AG
Original Assignee
Hany & Cie Ag
HAENY AND CIE AG
HANY AND CIE AG
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 Hany & Cie Ag, HAENY AND CIE AG, HANY AND CIE AG filed Critical Hany & Cie Ag
Publication of EP0358245A1 publication Critical patent/EP0358245A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/22—Adaptations of pumping plants for lifting sewage
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits

Definitions

  • the present invention relates to a wastewater conveying device according to the preamble of claim 1.
  • Eccentric screw pumps have the advantage that their flow rate at the constant speed of the rotary drive is practically independent of the flow resistance in the pressure line, so that the latter can be optimally dimensioned for its respective application. Eccentric screw pumps have the further advantage that high pressures can be achieved.
  • eccentric screw pumps cannot handle large solids. It has therefore already been proposed to connect the eccentric screw pump upstream of a shredder which shreds all the parts sucked in by the eccentric screw pump (see H. Putz, Abwasserhebeanlagen ", trade journal for sanitary, heating, air conditioning, issue 23, 35.JG. 1st edition, Dec 1980, Berlin).
  • U.S. Patent Re. 29,626 a wastewater conveying device of the type described in the preamble of claim 1 is disclosed.
  • This known wastewater conveying device has a drive motor which is provided with a shaft which is connected to the shaft of the eccentric screw pump via a practically rigid coupling.
  • the shaft of the eccentric screw pump is connected to the rotor of the eccentric screw pump via a flexible coupling tube.
  • the pump shaft carries the cutting head of the comminution device at its lower end.
  • the present invention is based on the object of creating a wastewater conveying device of the type mentioned at the outset which, while taking advantage of the advantages of an eccentric screw pump, enables a simple and comparatively space-saving design.
  • the single figure shows a purely schematic side view and partially in longitudinal section of an embodiment of a wastewater conveying device.
  • the embodiment shown in the figure is intended for vertical arrangement in a sewage shaft and has an electric motor 50 designed as a submersible motor, which has a rotor 52 arranged on a shaft 51 running in the vertical direction and a stator 53 includes which is attached to the inside of a housing 54.
  • This housing 54 has on its underside a fastening flange 54a, to which a comminution device 55 for solids is screwed.
  • This comminution device 55 has a cutting head 56 which sits on the shaft 51 of the electric motor 50.
  • the cutting head 56 carries a plurality of cutting knives 57 on its circumference, which interact with a fixed cutting counter ring 58 surrounding the cutting head 56.
  • the latter is mounted in the housing 60 of an eccentric screw pump 59.
  • This housing 60 is also screwed to the mounting flange 54a of the drive motor 50.
  • a coupling rod is arranged in the interior of the housing 60 and is connected to the end 51a of the shaft 51 of the drive motor 50 via a watertight encapsulated ball joint 62.
  • the coupling rod 61 is also connected via an encapsulated ball joint 63 to the helically wound pump rotor 64, which is only shown in half in the drawing.
  • the pump rotor 64 interacts with a stator 65 in a manner known per se.
  • the housing 60 is provided with a connecting piece 66 for a pressure-side connecting line 67.
  • the waste water drawn in by the eccentric screw pump 59 flows approximately radially into an inflow space 68 arranged above the cutting head 56, from where it flows past the cutting head 56 and is pressed by the eccentric screw pump 59 through the connecting line 67.
  • the embodiment described has the advantage that the cutting head 56 is seated directly on the motor shaft 51, which also runs in the axial direction at all times during operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sewage (AREA)
  • Rotary Pumps (AREA)
  • Treatment Of Sludge (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

Apparatus for conveying sewage or waste water by means of a rotatable displacement pump positioned within a housing. A cutting device is positioned at a water inlet for cutting solid materials that are part of the waste water to reduce their size in order for the materials to be able to pass through the pump. The pump is an eccentric worm-gear pump and is driven by a motor drive shaft that also drives the rotatable portion of the cutting device. The apparatus has a compact design and provides a high suction capacity, and a conveying capability that is independent of the supply resistance, so that a small diameter pump outlet pipe can be provided for the sewage.

Description

Die vorliegende Erfindung betrifft eine Abwasserförder­einrichtung gemäss Oberbegriff des Anspruches 1.The present invention relates to a wastewater conveying device according to the preamble of claim 1.

Es ist bekannt, für die Förderung von Abwässern Exzen­terschneckenpumpen, die zu den rotierenden Verdränger­pumpen zu zählen sind, zu verwenden. Exzenterschnecken­pumpen haben den Vorteil, dass deren Fördermenge bei konstanter Drehzahl des Drehantriebes praktisch unabhängig vom Förderwiderstand in der Druckleitung ist, so dass letztere optimal für ihren jeweiligen Einsatz dimensio­niert werden kann. Exzenterschneckenpumpen haben den weiteren Vorteil, dass hohe Drücke erzielbar sind. Doch können Exzenterschneckenpumpen grosse Feststoffe nicht bewältigen. Es wurde daher schon vorgeschlagen, der Exzenterschneckenpumpe einen Zerkleinerer vorzuschalten, der alle durch die Exzenterschneckenpumpe angesaugten Teile zerkleinert (s. H. Putz, Abwasserhebeanlagen", Fachzeitschrift für Sanitär, Heizung, Klima, Heft 23, 35.JG. 1. Ausgabe, Dez. 1980, Berlin).It is known to use progressing cavity pumps, which belong to the rotating positive displacement pumps, for the conveyance of waste water. Eccentric screw pumps have the advantage that their flow rate at the constant speed of the rotary drive is practically independent of the flow resistance in the pressure line, so that the latter can be optimally dimensioned for its respective application. Eccentric screw pumps have the further advantage that high pressures can be achieved. However, eccentric screw pumps cannot handle large solids. It has therefore already been proposed to connect the eccentric screw pump upstream of a shredder which shreds all the parts sucked in by the eccentric screw pump (see H. Putz, Abwasserhebeanlagen ", trade journal for sanitary, heating, air conditioning, issue 23, 35.JG. 1st edition, Dec 1980, Berlin).

In der US-PS Re. 29,626 ist eine Abwasserfördereinrichtung der im Oberbegriff des Anspruches 1 umschriebenen Art offenbart. Diese bekannte Abwasserfördereinrichtung weist einen Antriebsmotor auf, der mit einer Welle versehen ist, die über eine praktisch starre Kupplung mit der Welle der Exzenterschneckenpumpe verbunden ist. Die Welle der Exzen­terschneckenpumpe ist über ein flexibles Kupplungsrohr mit dem Rotor der Exzenterschneckenpumpe verbunden. An ihrem unteren Ende trägt die Pumpenwelle den Schneidkopf der Zerkleinerungsvorrichtung.In U.S. Patent Re. 29,626 a wastewater conveying device of the type described in the preamble of claim 1 is disclosed. This known wastewater conveying device has a drive motor which is provided with a shaft which is connected to the shaft of the eccentric screw pump via a practically rigid coupling. The shaft of the eccentric screw pump is connected to the rotor of the eccentric screw pump via a flexible coupling tube. The pump shaft carries the cutting head of the comminution device at its lower end.

Die Notwendigkeit, zwischen der Pumpenwelle und dem Pum­penrotor ein flexibles Kupplungsrohr vorsehen zu müssen, führt zu einer verhältnismässig aufwendigen Konstruktion.The need to provide a flexible coupling tube between the pump shaft and the pump rotor leads to a relatively complex construction.

Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, eine Abwasserfördereinrichtung der eingangs genannten Art zu schaffen, die unter Ausnutzung der Vorteile einer Exzenterschneckenpumpe eine einfache und vergleichsweise platzsparende Bauweise ermöglicht.The present invention is based on the object of creating a wastewater conveying device of the type mentioned at the outset which, while taking advantage of the advantages of an eccentric screw pump, enables a simple and comparatively space-saving design.

Diese Aufgabe wird erfindungsgemäss durch die Merkmale des kennzeichnenden Teiles des Anspruches 1 gelöst.This object is achieved according to the invention by the features of the characterizing part of claim 1.

Da die Welle des Antriebsmotors über eine Gelenkverbindung mit dem Rotor der Exzenterschneckenpumpe verbunden ist, ist es möglich, eine Exzenterschneckenpumpe herkömmlicher Bauart zu verwenden. Damit ist die Voraussetzung für eine einfache und im Betrieb wenig störungsanfällige Konstruktion geschaffen, die auch ohne besonderen Aufwand gewartet werden kann.Since the shaft of the drive motor is connected to the rotor of the eccentric screw pump via an articulated connection, it is possible to use a conventional type eccentric screw pump. This creates the prerequisite for a simple construction that is not prone to malfunction during operation and that can also be serviced without any special effort.

Im folgenden wird anhand der Zeichnung ein Ausführungs­beispiel des Erfindungsgegenstandes näher erläutert.An exemplary embodiment of the subject matter of the invention is explained in more detail below with reference to the drawing.

Die einzige Figur zeigt rein schematisch in Seitenansicht und teilweise im Längsschnitt eine Ausführungsform einer Abwasserfördereinrichtung.The single figure shows a purely schematic side view and partially in longitudinal section of an embodiment of a wastewater conveying device.

Die in der Figur dargestellte Ausführungsform ist für die vertikale Anordnung in einem Abwasserschacht vorgesehen und weist einen als Tauchmotor ausgebildeten Elektromotor 50 auf, der einen auf einer in vertikaler Richtung verlau­fenden Welle 51 angeordneten Rotor 52 sowie einen Stator 53 umfasst, der an der Innenseite eines Gehäuses 54 be­festigt ist. Dieses Gehäuse 54 weist an seiner Unterseite einen Befestigungsflansch 54a auf, an dem eine Zerkleine­rungsvorrichtung 55 für Feststoffe angeschraubt ist.The embodiment shown in the figure is intended for vertical arrangement in a sewage shaft and has an electric motor 50 designed as a submersible motor, which has a rotor 52 arranged on a shaft 51 running in the vertical direction and a stator 53 includes which is attached to the inside of a housing 54. This housing 54 has on its underside a fastening flange 54a, to which a comminution device 55 for solids is screwed.

Diese Zerkleinerungsvorrichtung 55 weist einen Schneidkopf 56 auf, der auf der Welle 51 des Elektromotors 50 sitzt. Der Schneidkopf 56 trägt an seinem Umfang mehrere Schneid­messer 57, die mit einem den Schneidkopf 56 umschliessen­den, feststehenden Schneidgegenring 58 zusammenwirken. Letzterer ist im Gehäuse 60 einer Exzenterschneckenpumpe 59 gelagert. Dieses Gehäuse 60 ist ebenfalls mit dem Be­festigungsflansch 54a des Antriebsmotors 50 verschraubt. Im Inneren des Gehäuses 60 ist eine Kuppelstange angeord­net, die über ein wasserdicht gekapseltes Kugelgelenk 62 mit dem Ende 51a der Welle 51 des Antriebsmotors 50 verbunden ist. Am anderen Ende steht die Kuppelstange 61 ebenfalls über ein gekapseltes Kugelgelenk 63 mit dem schraubenförmig gewundenen Pumpenrotor 64 in Verbindung, der in der Zeichnung nur hälftig dargestellt ist. Der Pumpenrotor 64 wirkt auf an sich bekannte Weise mit einem Stator 65 zusammen. Hinsichtlich der Funktionsweise dieser Exzenterschneckenpumpe 59 wird auf die Fachliteratur verwiesen, beispielsweise auf das Buch "Die Pumpen" von Fuchslocher/Schulz, Springer-Verlag, 11. Auflage. Am unteren Ende ist das Gehäuse 60 mit einem Anschlussstutzen 66 für eine druckseitige Anschlussleitung 67 versehen.This comminution device 55 has a cutting head 56 which sits on the shaft 51 of the electric motor 50. The cutting head 56 carries a plurality of cutting knives 57 on its circumference, which interact with a fixed cutting counter ring 58 surrounding the cutting head 56. The latter is mounted in the housing 60 of an eccentric screw pump 59. This housing 60 is also screwed to the mounting flange 54a of the drive motor 50. A coupling rod is arranged in the interior of the housing 60 and is connected to the end 51a of the shaft 51 of the drive motor 50 via a watertight encapsulated ball joint 62. At the other end, the coupling rod 61 is also connected via an encapsulated ball joint 63 to the helically wound pump rotor 64, which is only shown in half in the drawing. The pump rotor 64 interacts with a stator 65 in a manner known per se. With regard to the functioning of this eccentric screw pump 59, reference is made to the specialist literature, for example to the book "Die Pumpen" by Fuchslocher / Schulz, Springer-Verlag, 11th edition. At the lower end, the housing 60 is provided with a connecting piece 66 for a pressure-side connecting line 67.

Das durch die Exzenterschneckenpumpe 59 angesaugte Abwas­ser strömt etwa radial in einen oberhalb des Schneidkopfes 56 angeordneten Zuströmraum 68, von wo es am Schneidkopf 56 vorbeiströmt und durch die Exzenterschneckenpumpe 59 durch die Anschlussleitung 67 gedrückt wird.The waste water drawn in by the eccentric screw pump 59 flows approximately radially into an inflow space 68 arranged above the cutting head 56, from where it flows past the cutting head 56 and is pressed by the eccentric screw pump 59 through the connecting line 67.

Die beschriebene Ausführungsform hat den Vorteil, dass der Schneidkopf 56 direkt auf der auch im Betrieb jederzeit in axialer Richtung verlaufenden Motorwelle 51 sitzt.The embodiment described has the advantage that the cutting head 56 is seated directly on the motor shaft 51, which also runs in the axial direction at all times during operation.

Claims (6)

1. Abwasserfördereinrichtung mit einer einen Stator (65) und einen Rotor (64) aufweisenden Exzenterschnecken­pumpe (59), mit einer Zerkleinerungsvorrichtung (55), die in Strömungsrichtung vor der Exzenterschneckenpumpe (59) angeordnet ist und mit einem Antriebsmotor (50), dessen Welle (51) sowohl mit dem Rotor (64) der Exzen­terschneckenpumpe (59) wie auch mit der Zerkleinerungs­vorrichtung (55), die auf derselben Seite des Antriebs­motors (50) wie die Exzenterschneckenpumpe (59) ange­ordnet ist, gekoppelt ist, dadurch gekennzeichnet, dass die Welle (51) des Antriebsmotors (50) über eine Gelenkverbindung (61, 62, 63) mit dem Rotor (64) der Exzenterschneckenpumpe (59) verbunden ist.1. Waste water conveyor with a stator (65) and a rotor (64) having an eccentric screw pump (59), with a comminution device (55) which is arranged in the flow direction in front of the eccentric screw pump (59) and with a drive motor (50), the shaft (51) both with the rotor (64) of the eccentric screw pump (59) and with the shredding device (55), which is arranged on the same side of the drive motor (50) as the eccentric screw pump (59), characterized in that the The shaft (51) of the drive motor (50) is connected to the rotor (64) of the eccentric screw pump (59) via an articulated connection (61, 62, 63). 2. Abwasserfördereinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Gelenkverbindung eine Kuppelstange (61) aufweist, die über je ein kardanisch wirkendes Gelenk (62, 63) einerseits mit der Welle (51) des Antriebsmotors (50) und andererseits mit dem Rotor (64) der Exzenterschneckenpumpe (59) gekoppelt ist.2. Wastewater conveying device according to claim 1, characterized in that the articulated connection has a coupling rod (61) which has a cardanic joint (62, 63) on the one hand with the shaft (51) of the drive motor (50) and on the other hand with the rotor ( 64) of the eccentric screw pump (59) is coupled. 3. Abwasserfördereinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Antriebsmotor (50) als Tauchmotor ausgebildet ist.3. Waste water conveying device according to claim 1 or 2, characterized in that the drive motor (50) is designed as a submersible motor. 4. Abwasserfördereinrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Zerkleinerungs­vorrichtung (55) zwischen dem Antriebsmotor (50) und der Exzenterschneckenpumpe (59) angeordnet ist.4. Wastewater conveying device according to one of claims 1 to 3, characterized in that the shredding device (55) is arranged between the drive motor (50) and the eccentric screw pump (59). 5. Abwasserfördereinrichtung nach den Ansprüchen 2 und 4, dadurch gekennzeichnet, dass die Welle (51) des An­triebsmotors (50) im wesentlichen in vertikaler Richtung verläuft und einerseits einen Schneidkopf (56) der Zerkleinerungsvorrichtung (55) trägt und andererseits an ihrem Ende (51a) über die Kuppelstange (61) und die kardanisch wirkenden Gelenke (62, 63) mit dem Rotor (64) der Exzenterschneckenpumpe (59) verbunden ist.5. Waste water conveying device according to claims 2 and 4, characterized in that the shaft (51) of the drive motor (50) extends substantially in the vertical direction and on the one hand carries a cutting head (56) of the comminution device (55) and on the other hand at its end (51a ) is connected to the rotor (64) of the eccentric screw pump (59) via the coupling rod (61) and the cardanic joints (62, 63). 6. Abwasserfördereinrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Zerkleinerungsvorrichtung (55) und die Exzenterschneckenpumpe (59) unterhalb des Antriebsmotors (50) angeordnet sind.6. Waste water conveying device according to claim 5, characterized in that the comminution device (55) and the eccentric screw pump (59) are arranged below the drive motor (50).
EP89120358A 1985-05-24 1986-05-07 Sewage transporting device Withdrawn EP0358245A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2226/85 1985-05-24
CH2226/85A CH667891A5 (en) 1985-05-24 1985-05-24 WASTEWATER DEVICE.

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP86106244A Division EP0204170B1 (en) 1985-05-24 1986-05-07 Sewage transporting device
EP86106244A Division-Into EP0204170B1 (en) 1985-05-24 1986-05-07 Sewage transporting device

Publications (1)

Publication Number Publication Date
EP0358245A1 true EP0358245A1 (en) 1990-03-14

Family

ID=4228816

Family Applications (2)

Application Number Title Priority Date Filing Date
EP86106244A Expired - Lifetime EP0204170B1 (en) 1985-05-24 1986-05-07 Sewage transporting device
EP89120358A Withdrawn EP0358245A1 (en) 1985-05-24 1986-05-07 Sewage transporting device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP86106244A Expired - Lifetime EP0204170B1 (en) 1985-05-24 1986-05-07 Sewage transporting device

Country Status (6)

Country Link
US (1) US4725006A (en)
EP (2) EP0204170B1 (en)
JP (1) JPS61272484A (en)
AT (1) ATE55793T1 (en)
CH (1) CH667891A5 (en)
DE (1) DE3673566D1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2351933A1 (en) 2010-01-06 2011-08-03 Häny AG Waste water transport device with an eccentric screw pump hydraulic
DE102010022704A1 (en) * 2010-06-04 2011-12-08 Wilo Se Lifting plant for the disposal of domestic sewage
EP2471352A1 (en) * 2009-11-25 2012-07-04 Sattler AG Device for removing ensilaged plant material from a silo

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU215012B (en) * 1996-04-22 1998-08-28 Mihály Dolányi Equipment for collection and pumping out of sewage of single houses to common sewerage system
EP0907806B1 (en) * 1996-06-28 2001-10-17 Zoltan Danyi Apparatus for collecting and/or treating and carrying away liquids, multiphase systems, or liquids containing lumpy substances, primarily waste water
CN201742234U (en) * 2010-01-29 2011-02-09 广州市阳光科密电子科技有限公司 Water-cooled paper shredder
CN112696352B (en) * 2020-12-29 2022-09-09 江苏大学 Gas-electricity hybrid type dredge pump

Citations (4)

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Publication number Priority date Publication date Assignee Title
FR1531005A (en) * 1967-07-11 1968-06-28 Max Streicher G M B H & Co Kg Mobile transport facility
DE2645933A1 (en) * 1976-10-12 1978-04-13 Pumpen Und Maschinenbau Fritz Eccentric helical rotor type positive displacement pump - has rotor of rubber or plastic on central high tensile steel shaft
USRE29626E (en) * 1974-09-05 1978-05-09 Positive displacement rotary pump and drive coupling therefor
DE2827839A1 (en) * 1978-06-24 1980-01-17 Allweiler Ag Hunt proof eccentric screw pump - has eccentrically rotating pump shaft connected to concentric drive shaft in swivel bearing contg. flexible coupling

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US29626A (en) * 1860-08-14 Improvement in cultivators
US1892217A (en) * 1930-05-13 1932-12-27 Moineau Rene Joseph Louis Gear mechanism
US3512904A (en) * 1968-05-24 1970-05-19 Clifford H Allen Progressing cavity helical pump
US3667692A (en) * 1970-04-09 1972-06-06 Environment One Corp Pump storage grinder
US3897600A (en) * 1971-07-15 1975-08-05 Robintech Inc Pressure sewage system and means
AU8174982A (en) * 1981-03-23 1982-09-30 Warman International Limited Two stage centrifugal pump mounted on double-ended motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1531005A (en) * 1967-07-11 1968-06-28 Max Streicher G M B H & Co Kg Mobile transport facility
USRE29626E (en) * 1974-09-05 1978-05-09 Positive displacement rotary pump and drive coupling therefor
DE2645933A1 (en) * 1976-10-12 1978-04-13 Pumpen Und Maschinenbau Fritz Eccentric helical rotor type positive displacement pump - has rotor of rubber or plastic on central high tensile steel shaft
DE2827839A1 (en) * 1978-06-24 1980-01-17 Allweiler Ag Hunt proof eccentric screw pump - has eccentrically rotating pump shaft connected to concentric drive shaft in swivel bearing contg. flexible coupling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FACHZEITSCHRIFT F]R SANIT[R HEIZUNG KLIMA, Band 35, Heft 23, 35. Jahrgang, Dezember 1980, Seiten 30-37, Berlin, DE; H. PUTZ: "Abwasserhebeanlagen" *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2471352A1 (en) * 2009-11-25 2012-07-04 Sattler AG Device for removing ensilaged plant material from a silo
EP2351933A1 (en) 2010-01-06 2011-08-03 Häny AG Waste water transport device with an eccentric screw pump hydraulic
DE102010022704A1 (en) * 2010-06-04 2011-12-08 Wilo Se Lifting plant for the disposal of domestic sewage

Also Published As

Publication number Publication date
EP0204170B1 (en) 1990-08-22
DE3673566D1 (en) 1990-09-27
JPS61272484A (en) 1986-12-02
CH667891A5 (en) 1988-11-15
JPH037032B2 (en) 1991-01-31
ATE55793T1 (en) 1990-09-15
US4725006A (en) 1988-02-16
EP0204170A1 (en) 1986-12-10

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