EP1736668A3 - Stator for a progressive cavity pump and method of construction - Google Patents

Stator for a progressive cavity pump and method of construction Download PDF

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Publication number
EP1736668A3
EP1736668A3 EP06012833A EP06012833A EP1736668A3 EP 1736668 A3 EP1736668 A3 EP 1736668A3 EP 06012833 A EP06012833 A EP 06012833A EP 06012833 A EP06012833 A EP 06012833A EP 1736668 A3 EP1736668 A3 EP 1736668A3
Authority
EP
European Patent Office
Prior art keywords
stator
construction
progressive cavity
cavity pump
jacket
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Withdrawn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
EP06012833A
Other languages
German (de)
French (fr)
Other versions
EP1736668A2 (en
Inventor
Sebastian Jäger
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.)
Artemis Kautschuk und Kunststoff Technik GmbH
Original Assignee
Artemis Kautschuk und Kunststoff Technik GmbH
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 Artemis Kautschuk und Kunststoff Technik GmbH filed Critical Artemis Kautschuk und Kunststoff Technik GmbH
Publication of EP1736668A2 publication Critical patent/EP1736668A2/en
Publication of EP1736668A3 publication Critical patent/EP1736668A3/en
Withdrawn legal-status Critical Current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
    • 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
    • F04C2/1075—Construction of the stationary member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49236—Fluid pump or compressor making
    • Y10T29/49242—Screw or gear type, e.g., Moineau type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

Die vorliegende Erfindung betrifft einen Stator für eine Exzenterschneckenpumpe mit einem Mantel aus Stahl oder dergleichen und einer gewendelten Elastomerauskleidung, der aus mindestens zwei, axial aneinander gereihten Statorsegmenten zusammengesetzt ist. Aufgabe der vorliegenden Erfindung ist es, einen derartigen Stator sowie ein Verfahren zu seiner Herstellung zur Verfügung zu stellen, bei dem die Verbindung zwischen zwei Statorsegmenten auch bei Drücken über 80 Bar dicht ist. Gelöst wird diese Aufgabe dadurch, dass die Statorsegmente (2, 3) an ihren Stoßstellen (12) durch einen auf den Mantel (4) aufgeschobenen, die Stoßstellen (12) überlappenden und radial auf den Mantel (4) aufgestauchten Metallring (16) druckdicht miteinander verbunden sind.

Figure imgaf001
The present invention relates to a stator for an eccentric screw pump with a sheath made of steel or the like and a coiled elastomer lining, which is composed of at least two axially juxtaposed stator segments. The object of the present invention is to provide such a stator and a method for its production in which the connection between two stator segments is tight even at pressures above 80 bar. This object is achieved in that the stator segments (2, 3) at its joints (12) by a on the jacket (4) pushed, the joints (12) overlapping and radially on the jacket (4) upset metal ring (16) pressure-tight connected to each other.
Figure imgaf001
EP06012833A 2005-06-22 2006-06-22 Stator for a progressive cavity pump and method of construction Withdrawn EP1736668A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005028818A DE102005028818B3 (en) 2005-06-22 2005-06-22 Stator for an eccentric screw pump comprises axially arranged stator segments connected pressure-tight on their contact points by a tube pulled onto a casing and overlapping the contact points and a radially flattened metal ring

Publications (2)

Publication Number Publication Date
EP1736668A2 EP1736668A2 (en) 2006-12-27
EP1736668A3 true EP1736668A3 (en) 2009-09-23

Family

ID=36776455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06012833A Withdrawn EP1736668A3 (en) 2005-06-22 2006-06-22 Stator for a progressive cavity pump and method of construction

Country Status (4)

Country Link
US (1) US7354258B2 (en)
EP (1) EP1736668A3 (en)
CA (1) CA2551292A1 (en)
DE (1) DE102005028818B3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9133841B2 (en) 2013-04-11 2015-09-15 Cameron International Corporation Progressing cavity stator with metal plates having apertures with englarged ends
DE202013004219U1 (en) 2013-05-06 2013-05-17 SGF SüDDEUTSCHE GELENKSCHEIBENFABRIK GMBH & CO. KG Stator for a feed pump
US20150122549A1 (en) * 2013-11-05 2015-05-07 Baker Hughes Incorporated Hydraulic tools, drilling systems including hydraulic tools, and methods of using hydraulic tools
JP7304131B2 (en) * 2017-12-22 2023-07-06 古河機械金属株式会社 Screw pump and downhole motor with same
DE102019126675A1 (en) * 2019-10-02 2021-04-08 Netzsch Pumpen & Systeme Gmbh Eccentric screw pump in modular design
CN113202688B (en) * 2021-05-25 2022-04-01 中石化江钻石油机械有限公司 Screw motor and underground power drilling tool with prolonged service life

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1985861U (en) * 1968-01-25 1968-05-22 Max Streicher STATOR ARRANGEMENT, IN PARTICULAR FOR Eccentric Screw Pumps.
DE1525648A1 (en) * 1966-04-22 1969-06-12 Gen Electric Co Ltd Method of joining the ends of thin-walled metal pipes
US3889354A (en) * 1968-03-29 1975-06-17 Sintokogio Ltd Method of forming a crimped tube joint

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499389A (en) * 1967-04-19 1970-03-10 Seeberger Kg Worm pump
US3912426A (en) * 1974-01-15 1975-10-14 Smith International Segmented stator for progressive cavity transducer
DD279043A1 (en) * 1988-12-29 1990-05-23 Hydrogeologie Nordhausen Halle STATOR FOR ECCENTRIC SCISSORS
US5221197A (en) * 1991-08-08 1993-06-22 Kochnev Anatoly M Working member of a helical downhole motor for drilling wells
DE19534774A1 (en) * 1995-09-19 1997-03-20 Artemis Kautschuk Kunststoff Eccentric screw pump
US5779460A (en) * 1996-06-07 1998-07-14 Ici Canada Inc. Progressive cavity pump with tamper-proof safety
US5807087A (en) * 1997-03-21 1998-09-15 Tarby, Inc. Stator assembly for a progressing cavity pump
DE19804260C2 (en) * 1998-02-04 2003-04-10 Artemis Kautschuk Kunststoff Elastomer stator for an eccentric screw pump
DE19855898C2 (en) * 1998-12-03 2001-09-06 Usd Formteiltechnik Gmbh Eccentric screw pump device and preassembled eccentric screw pump unit for this
DE29822365U1 (en) * 1998-12-16 1999-04-01 Artemis Kautschuk Kunststoff Elastomer stator for eccentric screw pumps
DE19950257B4 (en) * 1999-10-18 2013-01-17 Wilhelm Kächele GmbH Elastomertechnik Eccentric screw pump with fully lined stator
DE20010494U1 (en) * 2000-06-19 2000-09-21 Putzmeister Moertelmaschinen G Eccentric screw pump
FR2826407B1 (en) * 2001-06-21 2004-04-16 Pcm Pompes SPRAY PUMP STATOR AND PROCESS FOR ITS MANUFACTURE
DE10241753C1 (en) * 2002-09-10 2003-11-13 Netzsch Mohnopumpen Gmbh Stator for eccentric screw pump has outside of hollow body defining rotor space enclosed by manrle assembled from linked segments

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1525648A1 (en) * 1966-04-22 1969-06-12 Gen Electric Co Ltd Method of joining the ends of thin-walled metal pipes
DE1985861U (en) * 1968-01-25 1968-05-22 Max Streicher STATOR ARRANGEMENT, IN PARTICULAR FOR Eccentric Screw Pumps.
US3889354A (en) * 1968-03-29 1975-06-17 Sintokogio Ltd Method of forming a crimped tube joint

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SELCK M A D: "EINE KALTE ALTERNATIVE ZUM SCHWEISSEN//TEMPERATUR- UND MEDIUMUNABHAEGIGES FITTINGSYSTEM FUER LEITUNGSSYSTEME UEBER 16 BAR//A COLD ALTERNATIVE TO WELDING//A NON-TEMPERATURE AND NON-FLUID DEPENDENT FITTING SYSTEM FOR PIPING SYSTEMS FOR > 16 BAR", 3R INTERNATIONAL, VULKAN-VERLAG, ESSEN, DE, vol. 40, no. 8, 1 January 2001 (2001-01-01), pages 497 - 500, XP001078062, ISSN: 0340-3386 *

Also Published As

Publication number Publication date
US7354258B2 (en) 2008-04-08
CA2551292A1 (en) 2006-12-22
DE102005028818B3 (en) 2006-08-24
EP1736668A2 (en) 2006-12-27
US20070020133A1 (en) 2007-01-25

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