EP0764783B1 - Pompe Moineau - Google Patents

Pompe Moineau Download PDF

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Publication number
EP0764783B1
EP0764783B1 EP96113275A EP96113275A EP0764783B1 EP 0764783 B1 EP0764783 B1 EP 0764783B1 EP 96113275 A EP96113275 A EP 96113275A EP 96113275 A EP96113275 A EP 96113275A EP 0764783 B1 EP0764783 B1 EP 0764783B1
Authority
EP
European Patent Office
Prior art keywords
pump according
protruding parts
rotor
pump
approximately
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.)
Revoked
Application number
EP96113275A
Other languages
German (de)
English (en)
Other versions
EP0764783A1 (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=7772592&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0764783(B1) "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 EP0764783A1 publication Critical patent/EP0764783A1/fr
Application granted granted Critical
Publication of EP0764783B1 publication Critical patent/EP0764783B1/fr
Anticipated expiration legal-status Critical
Revoked 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 eccentric screw pump one made of a practically rigid material, especially steel manufactured rotor driven by an electric motor and a stator with an elastomer lining.
  • the maximum achievable delivery pressure is with these pumps by the effects of the sealing lines between the rotor and the elastomer lining.
  • the hardness of the elastomer lining and its preload significant with respect to the rotor and it it is understood that under these conditions none geometrically accurate sealing lines, but narrow sealing surfaces arise.
  • this fact means that of the rotor drives or the intended ones Corresponding requirements are to be met by electric motors.
  • high static friction values are required overcome and countered larger breakaway torques become. Also arise at the start of pump operation unfavorable sliding friction values.
  • the invention has for its object to pump the input to train the type mentioned so that when starting the Pump result in more favorable coefficients of friction and breakaway torques and accordingly smaller for this initial operation Drive powers are sufficient.
  • the one facing the rotor i.e. the active one Surface of the elastomer lining of the stator has a fine structure special quality. It must have small projections have between which there is liquid or suitable areas with pulpy components of the material to be conveyed are located. In a way, this results in a Smear effect which results in a significantly reduced Current consumption leads and even so-called luminous flux electric motors (with two-pole connection) even for larger ones Operating pressures and pumps enabled.
  • the projecting parts are expediently the Fine structure - in the not yet deformed state - not about even or according to the inner diameter of the lining rounded, but dome-shaped, so a non-linear Indentation characteristics of the fine protrusions to be able to achieve.
  • the between the protruding parts not as recesses wide drainage channels, on the contrary shaped so that the desired lubricant effect is not caused by draining off all or part of the liquid or slurry will be annulled.
  • the main parts of the pump shown in Fig. 1 are the Stator 1, a disc 2 for holding it and a rotor 3 located within the stator 1.
  • the jacket 4 of the stator 1 is a segmented, if necessary Steel pipe, to the inside of a lining 5 made of rubber or rubber-like plastics is attached, which in turn has a pump cavity 6, which in the manner of a two-start high-helix thread is formed and to accommodate the rotor 3 made of steel is used. It has the shape of a catchy high helix thread and has a drive end Coupling piece 7 on that with a corresponding Coupling part of an electric motor as the drive motor of the pump is in operative connection.
  • the eccentricity is with E designated.
  • the pump cavity 6 is dimensioned so narrow that the lining 5 with a bias of about 5 - 10% the outer surface of the rotor 3, so that the desired To achieve delivery pressures for the above-mentioned pumping medium can.
  • FIGS. 3 and 5 one section each e.g. play at 9 of the inner surface 8.
  • the inner structure of a variety small crests 10 formed, the scaly and in rows 11, 12 and 13 are arranged one behind the other, namely in such a way that the individual crests 10 a row around about half a length L of the crests 10 of a row the crests 10 of the adjacent row are offset.
  • Between the crests 10 are depressions 14 which the crests 10 separate.
  • These recesses 14 are so dimensioned and also only zigzag with each other connected that in the recesses 14 during startup the liquid does not collect liquid or pulpy material can easily escape, so to speak the known to the automotive industry, but undesirable there To create aquaplaning effect. It's supposed to slide reached or a smear effect arise.
  • the length L of the tips 10 should be about 2-5, preferably about 3.5 mm, the width b about o.8-1.4, preferably about 1.2 mm be.
  • the height H of the crests 10 is approximately 0.01-0.2 mm.
  • the crests 10 and 15 rows formed preferably at least approximately transverse to Longitudinal central axis of the stator 1 and the Ground plan of the protruding parts approximately oval or can be elliptical, rectangular or slightly trapezoidal.

Landscapes

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

Claims (15)

  1. Pompe à vis excentrée, comprenant un rotor (3) réalisé en un matériau pratiquement rigide et entraíné par un moteur électrique, et un stator (1) comportant un habillage (5) en élastomère, caractérisée en ce que, afin de réduire l'appel de courant d'entrée du moteur électrique en présence d'une précontrainte de l'habillage (5) en élastomère d'environ 5 à 15% par rapport au rotor (3), au moins une grande partie, mais de préférence la totalité de la surface (8) de l'habillage (5) en élastomère qui entre en contact avec le rotor est conçue pour recevoir des portions liquides ou pâteuses du produit véhiculé entre des parties (10, 15) saillantes d'une structuration fine de cette surface.
  2. Pompe suivant la revendication 1, caractérisée en ce que les parties (10, 15) saillantes sont des calottes.
  3. Pompe suivant la revendication 1, caractérisée en ce que la structuration fine est réalisée, vue en projection, à la manière d'écailles imbriquées.
  4. Pompe suivant la revendication 1, caractérisée en ce que les parties (10) saillantes sont disposées les unes derrière les autres en rangées (11, 12, 13), et les parties (10) voisines de rangées voisines sont mutuellement décalées.
  5. Pompe suivant la revendication 4, caractérisée en ce que le décalage correspond environ à la demi-longueur des parties (10) saillantes.
  6. Pompe suivant la revendication 2, caractérisée en ce que les calottes (10) se raccordent les unes aux autres.
  7. Pompe suivant la revendication 2, caractérisée en ce que les calottes (15) sont disposées à distance les unes des autres et la déformabilité élastique des calottes (15) est d'une ampleur telle que, lorsque la pompe est en service, la largeur des canaux (17, 18) produits par leur espacement mutuel peut être nettement réduite.
  8. Pompe suivant la revendication 1, caractérisée en ce que les parties (10, 15) saillantes sont disposées les unes derrière les autres en rangées, et leur étendue dans la direction des rangées est nettement supérieure à leur étendue en direction transversale.
  9. Pompe suivant la revendication 8, caractérisée en ce que les parties saillantes sont, en projection horizontale, de forme essentiellement ovale, rectangulaire ou légèrement trapézoïdale.
  10. Pompe suivant la revendication 1, caractérisée en ce que les parties saillantes sont configurées et déformables de telle sorte que, lorsque la pompe est en service, des espaces restent présents entre les parties déformées pour recevoir du produit véhiculé.
  11. Pompe suivant la revendication 8, caractérisée en ce que la longueur (L) des parties saillantes est égale à environ 2 - 5 mm, de préférence environ 3,5 mm, et leur largeur à environ 0,8 - 1,4 mm, de préférence environ 1,2 mm.
  12. Pompe suivant la revendication 1, caractérisée en ce que la hauteur (H) des parties (10, 15) saillantes est égale à environ 0,01 à 0,2 mm.
  13. Pompe suivant la revendication 1, caractérisée en ce que son entraínement est un moteur à courant d'éclairage.
  14. Pompe suivant la revendication 9, caractérisée en ce que les parties saillantes s'étendent essentiellement transversalement à l'axe longitudinal du stator (1) ou encore à l'axe de rotation du rotor (3).
  15. Pompe suivant une ou plusieurs des revendications précédentes pour le refoulement de crépi, de mortier, de plâtre ou de produits analogues utilisés dans le domaine du bâtiment.
EP96113275A 1995-09-19 1996-08-20 Pompe Moineau Revoked EP0764783B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19534774 1995-09-19
DE19534774A DE19534774A1 (de) 1995-09-19 1995-09-19 Exzenterschneckenpumpe

Publications (2)

Publication Number Publication Date
EP0764783A1 EP0764783A1 (fr) 1997-03-26
EP0764783B1 true EP0764783B1 (fr) 2001-02-28

Family

ID=7772592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113275A Revoked EP0764783B1 (fr) 1995-09-19 1996-08-20 Pompe Moineau

Country Status (4)

Country Link
EP (1) EP0764783B1 (fr)
AT (1) ATE199437T1 (fr)
DE (2) DE19534774A1 (fr)
ES (1) ES2156242T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9228585B2 (en) 2013-03-22 2016-01-05 Wilhelm Kachele Gmbh Eccentric screw machine with asymmetrical projections

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29819891U1 (de) * 1998-10-12 1999-04-22 Allweiler Ag, 78315 Radolfzell Rotor für eine Pumpe, insbesondere für eine Exzenterschneckenpumpe
DE10245497C5 (de) * 2002-09-27 2009-02-19 Wilhelm Kächele GmbH Elastomertechnik Exzenterschneckenpumpe mit vergrößertem Temperaturbereich
DE102005028818B3 (de) * 2005-06-22 2006-08-24 Artemis Kautschuk- Und Kunststoff-Technik Gmbh Stator für eine Exzenterschneckenpumpe und Verfahren zu seiner Herstellung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2512792A1 (de) * 1975-03-22 1976-09-30 Gummi Jaeger Kg Gmbh & Cie Nachstellbarer stator fuer exzenterschneckenpumpen
DE4111166C2 (de) * 1991-04-06 1999-03-18 Gummi Jaeger Kg Gmbh & Cie Exzenterschneckenpumpe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9228585B2 (en) 2013-03-22 2016-01-05 Wilhelm Kachele Gmbh Eccentric screw machine with asymmetrical projections

Also Published As

Publication number Publication date
DE19534774A1 (de) 1997-03-20
DE59606491D1 (de) 2001-04-05
ATE199437T1 (de) 2001-03-15
ES2156242T3 (es) 2001-06-16
EP0764783A1 (fr) 1997-03-26

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