EP0935071A1 - Stator en élastomère pour pompes à vis excentrique - Google Patents

Stator en élastomère pour pompes à vis excentrique Download PDF

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Publication number
EP0935071A1
EP0935071A1 EP99100630A EP99100630A EP0935071A1 EP 0935071 A1 EP0935071 A1 EP 0935071A1 EP 99100630 A EP99100630 A EP 99100630A EP 99100630 A EP99100630 A EP 99100630A EP 0935071 A1 EP0935071 A1 EP 0935071A1
Authority
EP
European Patent Office
Prior art keywords
stator
elastomer
jacket
connection
ring
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.)
Granted
Application number
EP99100630A
Other languages
German (de)
English (en)
Other versions
EP0935071B1 (fr
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7856549&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0935071(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Artemis Kautschuk und Kunststoff Technik GmbH filed Critical Artemis Kautschuk und Kunststoff Technik GmbH
Publication of EP0935071A1 publication Critical patent/EP0935071A1/fr
Application granted granted Critical
Publication of EP0935071B1 publication Critical patent/EP0935071B1/fr
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
    • 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

Definitions

  • the invention relates to an elastomer stator for a Eccentric screw pump, the elastomer stator made of an elastomer, of a rigid jacket has enclosed lining which with a for Inclusion of a rotor serving two or more times coiled cavity is provided, and wherein the Ends of the stator connecting rings to unite with remaining parts of the eccentric screw pump.
  • the invention is based on the output, stators of type mentioned in the beginning so that they on the one hand about the advantages of an inside and outside coiled coat and on the other hand also for such pumps are suitable that have a circular Request connection to the stator ends.
  • connection rings at the ends of one of the Inner contour of the stator coiled accordingly Stator sheath with a practical over the length of the sheath even wall thickness attached the Connection rings on the inner edge of one of the inner contours of the Stator have at least an approximate course.
  • the invention is based on a stator jacket, which is the same over its circumference and length Has wall thickness and accordingly in a simple manner a cylindrical tube body by pressing from the inside can be manufactured here.
  • An editing of the End sections of this jacket training is not required, these can rather be the coils be shaped accordingly and accordingly when viewed its face is roughly the shape of an ellipse exhibit.
  • To use such a coat in general can he receives flange-like connection rings that from the geometric circular ring shape and in Deviation from this design in its inner scope or on the inner edge of the inner contour of the elastic lining accordingly at least approximately is elliptical.
  • the Stator jacket also with its face blunt on the Apply to the inside of the connection ring and there be attached, which is preferably by welding od. Like. Is achieved.
  • stator designed in this way can be used universally; he can therefore also used in such progressing cavity pumps be using the usual stators cylindrical outer surface must be equipped.
  • the stator according to the invention opens after another Proposal according to the invention the possibility Stator jacket bodies in longer lengths, and indeed to be manufactured with elastic lining inside, by shorter bodies of greater length Cut ends by a normal cut. These ends are then used directly as a jacket and in According to the invention equipped with the connection rings. Also already provided with elastic inner lining Workpieces obtained in the aforementioned sense can even through weld seams on her back with the Connection rings are firmly connected.
  • the elastomer stator consists essentially of one stare, e.g. steel jacket 1, one inside lying lining 2 enclosed by the jacket 1 Rubber or rubber-like plastics and on the Stator ends located connection rings 7, which also are made of steel.
  • the lining 2 is preferably firmly adhered to the Jacket 1 connected, but it can also only - under No binding agent - on the inside of the Coat 1 fit and thus only held positively be.
  • the lining has a continuous cavity 4 for receiving a rotor 5, which is only in Fig. 2 in Cross section is shown. To achieve a Pump effect, the rotor 5 is simply coiled Cavity 4, however, designed double coiled.
  • the lining 2 is a total has uniform wall thickness s and the jacket 1 inside and outside according to the contour of the cavity 4 is also coiled.
  • the jacket 1 also has a constant over the stator length Wall thickness M.
  • connection ring 7 which the Connection between the stator on the one hand and the Pump frame on the suction side or pressure side on the other hand.
  • the connecting ring 7 is cylindrical on the outer circumference designed; the inner edge 8 of the connecting ring 7, however, runs in the sense of the contour of the cavity 4 or in parallel and essentially describes an ellipse. Compared to edge 8, however, jumps Lining 2 radially inwards.
  • connection ring 7 Concentric to the outer circumferential surface of the Connection ring 7 is located on the outside of this ring an annular groove 9, which serves to receive an O-ring 10.
  • the stator shown is preferably between two flange-like parts of the Pump held; the outside diameter of these parts should thereby that of the two envisaged Correspond to connection rings 7, the 0-ring 10 deformed and creates a seal. If necessary. can he Connection ring 7 in the area of its outer circumference too with screw holes or similar connecting means be provided to as detachable a connection as possible to create the other parts of the pump.
  • the jacket 1 can already be equipped with the lining 2 by cutting to length from a body with a larger size Length extension can be obtained by sawing or the like. This coat 1 is then both ends with a Provide connection ring 7, which is attached through the outside Welds 12 is attached so as to be tight and firm connection between the jacket 1 and the two To create connection rings 7.
  • connection ring 7 on the inner circumference - as indicated at 11 - conical externally expanding is
  • connection ring 7 on one, but preferably also on provided at both ends of the stator.
  • Fig. 1 and 2 corresponds to the outside diameter of the Connecting ring 7 of the greatest amplitude of the jacket 1, So it does not protrude in the radial direction.
  • the weld seam 12 is also intended.
  • the connecting ring 7 is used for fastening a metal sleeve 14 in coaxial with the stator Arrangement at its rear end by a Weld 15 is connected to the connecting ring 7 and a screw thread 16 in the area of its front end inside, but possibly also outside.
  • This Connection thread can also be designed conically.
  • the Metal sleeve 14 also has an outside with the Connection ring 7 matching outer diameter and an inside diameter that is the largest Cross extention of the peripheral surface 13 is determined.
  • the subsequent attachment of the metal sleeve 14 with Thread has the advantage that the thread in a later incised element to be connected to the stator can be.
  • Connection ring 7 also causes the Connection ring 7 a favorable transition from the outside coiled stator jacket 1 to an outer cylindrical Connecting link.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP99100630A 1998-02-04 1999-01-14 Stator en élastomère pour pompes à vis excentrique Expired - Lifetime EP0935071B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19804260 1998-02-04
DE19804260A DE19804260C2 (de) 1998-02-04 1998-02-04 Elastomerstator für eine Exzenterschneckenpumpe

Publications (2)

Publication Number Publication Date
EP0935071A1 true EP0935071A1 (fr) 1999-08-11
EP0935071B1 EP0935071B1 (fr) 2003-05-14

Family

ID=7856549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99100630A Expired - Lifetime EP0935071B1 (fr) 1998-02-04 1999-01-14 Stator en élastomère pour pompes à vis excentrique

Country Status (5)

Country Link
EP (1) EP0935071B1 (fr)
AT (1) ATE240460T1 (fr)
CA (1) CA2260634C (fr)
DE (2) DE19804260C2 (fr)
ES (1) ES2199487T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001029422A1 (fr) * 1999-10-18 2001-04-26 Wilhelm Kächele GmbH Elastomertechnik Stator avec anneau frontal rigide
WO2001029423A1 (fr) * 1999-10-18 2001-04-26 Wilhelm Kächele GmbH Pompe a vis a excentrique a stator entierement revetu
US7329106B2 (en) * 2003-11-17 2008-02-12 Artemis Kautschuk-Und Kunststoff-Tecknik Gmbh Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2826407B1 (fr) * 2001-06-21 2004-04-16 Pcm Pompes Stator de pompe moineau et procede pour sa fabrication
DE102005028818B3 (de) 2005-06-22 2006-08-24 Artemis Kautschuk- Und Kunststoff-Technik Gmbh Stator für eine Exzenterschneckenpumpe und Verfahren zu seiner Herstellung
EP3108142B1 (fr) 2014-02-18 2017-11-15 Vert Rotors UK Limited Machine volumétrique rotative

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1592149A (fr) * 1967-11-02 1970-05-11

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1995353U (de) * 1965-12-31 1968-10-24 Max Streicher Klassier- und schutzvorrichtung fuer exzenter-schneckenpumpen.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1592149A (fr) * 1967-11-02 1970-05-11

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001029422A1 (fr) * 1999-10-18 2001-04-26 Wilhelm Kächele GmbH Elastomertechnik Stator avec anneau frontal rigide
WO2001029423A1 (fr) * 1999-10-18 2001-04-26 Wilhelm Kächele GmbH Pompe a vis a excentrique a stator entierement revetu
US6666668B1 (en) * 1999-10-18 2003-12-23 Wilhelm Kaechele Gmbh Elastomertechnik Stator with rigid retaining ring
US7329106B2 (en) * 2003-11-17 2008-02-12 Artemis Kautschuk-Und Kunststoff-Tecknik Gmbh Stator for an eccentric screw pump or an eccentric worm motor operating on the moineau principle

Also Published As

Publication number Publication date
CA2260634C (fr) 2008-07-15
DE59905518D1 (de) 2003-06-18
CA2260634A1 (fr) 1999-08-04
ES2199487T3 (es) 2004-02-16
DE19804260C2 (de) 2003-04-10
EP0935071B1 (fr) 2003-05-14
ATE240460T1 (de) 2003-05-15
DE19804260A1 (de) 1999-08-12

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