EP1584820B1 - Pompe à écoulement mixte - Google Patents

Pompe à écoulement mixte Download PDF

Info

Publication number
EP1584820B1
EP1584820B1 EP04405214A EP04405214A EP1584820B1 EP 1584820 B1 EP1584820 B1 EP 1584820B1 EP 04405214 A EP04405214 A EP 04405214A EP 04405214 A EP04405214 A EP 04405214A EP 1584820 B1 EP1584820 B1 EP 1584820B1
Authority
EP
European Patent Office
Prior art keywords
edge
blade
guide vane
impeller
screw
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
EP04405214A
Other languages
German (de)
English (en)
Other versions
EP1584820A1 (fr
Inventor
Martin Stähle
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.)
Frideco AG
Original Assignee
Frideco 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
Priority to DE502004000769T priority Critical patent/DE502004000769D1/de
Application filed by Frideco AG filed Critical Frideco AG
Priority to EP04405214A priority patent/EP1584820B1/fr
Priority to DK04405214T priority patent/DK1584820T3/da
Priority to AT04405214T priority patent/ATE330126T1/de
Priority to PCT/CH2004/000664 priority patent/WO2005098237A1/fr
Priority to CNB2004800426761A priority patent/CN100419271C/zh
Priority to RU2006139075/06A priority patent/RU2358159C2/ru
Priority to JP2007506630A priority patent/JP5070039B2/ja
Priority to US10/588,736 priority patent/US7510368B2/en
Publication of EP1584820A1 publication Critical patent/EP1584820A1/fr
Application granted granted Critical
Publication of EP1584820B1 publication Critical patent/EP1584820B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/04—Helico-centrifugal pumps

Definitions

  • the invention relates to a screw centrifugal pump according to the preamble of claim 1.
  • the invention further relates to a method for conveying a medium with a fferenzentrifugalradpumpe according to the preamble of claim 8.
  • a ringenzentrifugalradpumpe also known as worm gear, known.
  • a centrifugal pump comprises a single, helically extending blade, which is rotatably arranged in a pump housing.
  • This pump is particularly suitable for the promotion of interspersed with solid admixtures liquids, especially for the promotion of dirty water with langturaigen components.
  • the invention has for its object to provide a fferenzentrifugalradpumpe, which has more advantageous properties in the promotion of interspersed with solid admixtures liquids.
  • a screw centrifugal wheel pump comprising a pump housing with an inlet opening and an impeller arranged inside the pump housing, which has a spirally running inlet blade edge, wherein in the region of the inlet opening a guide blade protruding into the interior of the impeller is arranged, which has a vane edge, which protrudes increasingly in the direction of rotation of the impeller in the direction of the axis of rotation in the interior of the impeller.
  • the screw centrifugal pump according to the invention is particularly advantageous in conveying higher concentrations of fibrous solids prone to plait formation. If the fibrous stranded solids concentration is always higher, this leads to bale formation and increased friction in the suction line in the impeller channel. If a certain limit value is reached, the hydraulic forces alone are no longer sufficient to convey the material, with the result that the screw centrifugal pump clogs and blocks.
  • the inventive screw centrifugal pump prevents this blockage by the helical entry vane edge of the worm wheel start rotating with respect to the fixed projecting vane, with the entry vane edge and vane cooperating such that the intervening solid masses are captured by the rotating entry vane edge and loosened along the entry vane edge in the flow direction and / or pressed.
  • a mechanical force acting essentially in the conveying direction is exerted on the conveyed medium, which prevents accumulation of solid constituents in the conveying path.
  • the guide vane edge forms a fixed space curve and the inlet vane edge rotatable due to the rotatable fferenzentrifugalrades space curve, these two space curves are preferably mutually adapted extending configured that they are when rotating the impeller at mutually short distance or touching each other move past each other.
  • the solids located between the two space curves are thereby mechanically moved in the direction of the space curves, and thereby substantially in the flow direction, and thereby loosened or pressed in the flow direction.
  • the vane edge and / or the inlet vane edge at least partially on a cutting edge, so that the solids between the mutually moving space curves are also mechanically crushed.
  • this causes crushing or dicing of the braids or fibers, which prevents attachment of the braids in the conveying path and thus ensures continuous, reliable operation of the fferenzentrifugalradpumpe without interruption.
  • the mutual shear, separation or clamping effect of the two space curves also allows, depending on the design of the vane edge and / or the inlet blade edge, a cutting, crushing or weakening of fibrous solids such as paper, cords, wood or solids such as plastic, rubber, metal or glass.
  • the fferenzentrifugalradpumpe 1 comprises a ringenzentrifugalrad 2, which is arranged about a rotation axis 2d rotatably in the direction of rotation 4a in a pump housing 3.
  • the fferenzentrifugalrad 2 has a spiral-running inlet blade edge 2a and an outer contour 2c.
  • the fferenzentrifugalrad 2 is fixedly connected to a pump shaft 4.
  • the pump housing 3 comprises a suction cone housing part 3a, a spiral housing part 3b, an inlet opening 3c and an outlet opening 3d.
  • a guide vane 5 with a vane edge 5a protruding into the interior of the pump housing 3 and into the interior of the screw centrifugal wheel 2 is fixedly arranged.
  • the term "interior of the impeller 2" in the present document is understood to mean the interior which is bounded by the external contour 2c when the centrifugal centrifugal wheel 2 rotates, so that the guide vane 5 extends at least partially into this internal space, and the centrifugal impeller 2 as shown in FIG. in the region of its tip or within the maximum extent of the helical gear portion 6a, the guide blade 5 is orbited outside.
  • the fferenzentrifugalradpumpe 1 also includes a ringradanteil 6a and a Zentrifugalradanteil 6b. The pumped with the pump 1 medium flows in the flow direction S.
  • FIG. 2 shows, from the direction indicated by A in FIG. 1, a front view of the inlet opening 3c, the impeller 2 and the guide blade 5 being recognizable inside the pump 1.
  • the impeller 2 shows the spiraling inlet blade edge 2a, which falls off against the axis of rotation 2d and grows axially into it. The foremost portion of the inlet blade edge 2a is not directly visible because of the vane 5 and therefore shown in dashed lines.
  • the vane 5 is designed in such a way that the vane edge 5 a protrudes progressively in the direction of rotation 4 a in the direction of the axis of rotation 2 d into the interior of the impeller 2, both in the radial and in the axial direction.
  • the vane edge 5a forms a fixed space curve, whereas the inlet vane edge 2a forms a space curve rotatable about the wheel axis 2d.
  • These two space curves 2 a, 5 a are designed to be mutually adapted in the illustrated exemplary embodiment such that the vane edge 5 a has a vane edge section 5 b and the inlet vane edge 2 a has a vane edge section 2 b within which the vane edge 5 a and the inlet vane edge 2 a depend on the respective position of the impeller 2 have mutually small distance or touch each other.
  • the mutually small distance may for example have a value between 0.1 and 30 mm. This position with mutually least distance is shown with the point P1 on the blade edge portion 2b and the P2 on the vane edge portion 5b.
  • the guide blade 5 can be arranged and configured in various ways in the pump housing 3 such that the stationary guide blade edge 5a and the rotating inlet blade edge 2a cooperate such that solids are mechanically conveyed by the mutual cooperation of the edges 2a, 5a, in particular in the flow direction S.
  • the blade edge section 2b has a tangent T1 at the point P1 and the guide blade edge section 5b has a tangent T2 at the point P2, these two tangents T1, T2 having a cutting angle ⁇ as viewed from the inlet opening 3c.
  • This angle ⁇ is at least 10 degrees, and is preferably between 30 degrees and 150 degrees, in particular between 60 degrees and 120 degrees.
  • the angle ⁇ is preferably never smaller than the angle at which a sliding of the solid on the inlet blade edge 2a or between the inlet blade edge 2a and the vane edge 5a is no longer guaranteed.
  • FIGS. 3 and 4 show, in two detailed views, analogous to the illustration according to FIG. 2, two differently extending space curves or inlet blade edge 2a and guide blade edge 5a, the enclosed angle ⁇ of the tangents T1, T2 of the points P1, P2 in FIG in Figure 4 is about 90 degrees.
  • This angle ⁇ is determined by the course of the space curves 2a, 5a, and thus can be selected accordingly in the construction of the fferenzentrifugalradpumpe 1.
  • the course of the space curves 2a, 5a can be selected such that the angle ⁇ remains substantially constant during the movement of the points P1, P2 in the direction Q2.
  • the angle ⁇ during the movement of the points P1, P2 in the direction Q2 also increase and / or decrease.
  • At least part of the blade edge section 2b and / or the blade edge section 5b is designed as an edge, cutting edge or blade in order to weaken or sever a solid which is located between the sections 2b, 5b.
  • the length of the effective edge sections 2b, 5b can also be determined by appropriate shaping.
  • the fferenzentrifugalradpumpe can be optimized in accordance with the expected solids and admixtures, that the edge portions 2b, 5b and their angle ⁇ is selected to be optimized in order to prevent clogging of the pump and, for example, also to achieve a good pump efficiency.
  • FIG. 5 shows a further exemplary embodiment of a screw centrifugal pump 1, in whose inlet opening 3c a wear-resistant sleeve 7 is arranged, which is fixedly connected to the guide blade 5. With a fastening means, not shown, the sleeve 7 can be firmly connected to the pump housing 3.
  • the sleeve 7 and thus the vane 5 in the direction of movement R is displaced.
  • This arrangement has the particular advantage that the distance between the inlet blade edge 2a and the vane edge 5a, in particular the distance between the points P1, P2 in the direction R and Q1 is adjustable.
  • the inlet blade edge 2a and / or the vane edge 5a wears off during operation of the pump, so that the distance between the points P1, P2 increases during operation with time.
  • the sleeve 7 thus makes it possible to readjust the position of the guide vane 5 in the direction of displacement R or Q 1 after certain time intervals.
  • the sleeve 7 can also be designed such that it can also be rotated in the inlet opening 3c, i. with respect to the wheel axle 2d is rotatable to rotate the sleeve 7 in the released state, and thus also to rotate the position of the guide vane 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Centrifugal Separators (AREA)

Claims (9)

  1. Pompe centrifuge à roue hélicoïdale (1) comprenant un carter de pompe (3) avec un canal d'admission (3c) ainsi qu'une roue à aubes (2) disposée à l'intérieur du carter de pompe (3) et tournant autour d'un axe de rotation (2d) dans le sens de rotation (4a), roue qui présente un bord d'aube d'attaque (2a) en spirale, caractérisée en ce que dans la zone du canal d'admission (3c) est disposée une aube directrice (5) faisant saillie dans l'espace intérieur de la roue à aubes (2), et en ce que l'aube directrice (5) présente un bord d'aube directrice (5a) qui fait progressivement saillie dans l'espace intérieur de la roue à aubes (2), dans le sens de rotation (4a) et en direction de l'axe de rotation (2d), et en ce que la roue à aubes (2) ainsi que l'aube directrice (5) sont conçues d'une manière concourante telle qu'au moins une partie des additifs solides glisse le long du bord d'aube d'attaque.
  2. Pompe centrifuge à roue hélicoïdale (1) selon la revendication 1, caractérisée en ce que l'aube directrice (5) est logée en direction de l'axe de rotation (2d) de manière à pouvoir être déplacée et fixée.
  3. Pompe centrifuge à roue hélicoïdale (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le bord d'aube directrice (5a) forme une courbe spatiale fixe, en ce que le bord d'aube d'attaque (2a) forme une courbe spatiale rotative, et en ce que ces deux courbes spatiales sont conçues avec une adaptation des formes telle que le bord d'aube directrice (5a) présente un segment de bord d'aube directrice (5b) et le bord d'aube d'attaque (2a) présente un segment de bord d'aube (2b) à l'intérieur desquels le bord d'aube directrice (5a) et le bord d'aube d'attaque (2a), selon la position de la roue à aubes (2), présentent un faible écart ou se touchent réciproquement.
  4. Pompe centrifuge à roue hélicoïdale (1) selon la revendication 3, caractérisée en ce que aussi bien à l'intérieur du segment de bord d'aube (2b) qu'à l'intérieur du segment de bord d'aube directrice (5b) est obtenu à chaque fois un point (P1, P2), deux points qui présentent le plus petit écart entre le segment de bord d'aube (2b) et le segment de bord d'aube directrice (5b), ces points (P1, P2) se déplaçant dans le sens d'écoulement (S) lors de la rotation de la roue à aubes (2).
  5. Pompe centrifuge à roue hélicoïdale (1) selon la revendication 4, caractérisée en ce que le segment de bord d'aube (2b) présente une tangente (T1) au point (P1), en ce que le segment de bord d'aube directrice (5b) présente une tangente (T2) au point (P2), et en ce que ces deux tangentes (T1, T2) forment un angle de coupe (α) d'au moins 10 degrés par rapport au canal d'admission (3c).
  6. Pompe centrifuge à roue hélicoïdale (1) selon la revendication 5, caractérisée en ce que l'angle de coupe (α) est situé entre 30 degrés et moins de 180 degrés maximum, en particulier entre 60 degrés et 120 degrés.
  7. Pompe centrifuge à roue hélicoïdale (1) selon l'une quelconque des revendications 3 à 6, caractérisée en ce que le segment de bord d'aube (2b) ou/et le segment de bord d'aube directrice (5b) est/sont conçu(s) au moins en partie comme un bord coupant.
  8. Procédé d'alimentation d'un liquide chargé d'additifs solides à l'aide d'une pompe centrifuge à roue hélicoïdale (1) comprenant une roue à aubes (2) avec un bord d'aube d'attaque (2a) en spirale, caractérisé en ce que le liquide est amené, à l'aide d'une aube directrice (5), jusqu'au bord d'aube d'attaque (2a) de la roue à aubes (2) tournante de telle manière qu'au moins une partie des additifs solides glisse le long du bord d'aube d'attaque (2a), si bien que l'additif solide, sous l'effet du bord d'aube d'attaque (2a), est transporté mécaniquement dans le sens d'écoulement du liquide.
  9. Procédé selon la revendication 8, caractérisé en ce que, lorsque la roue à aubes (2) tourne, un bord d'aube directrice (5a) de l'aube directrice (5) et le bord d'aube d'attaque (2a) concourent de telle manière que l'additif solide se trouvant entre le bord d'aube d'attaque (2a) et le bord d'aube directrice (5a) est broyé de façon mécanique par les bords d'aube (2a, 5a) et/ou poussé dans le sens d'écoulement (S).
EP04405214A 2004-04-07 2004-04-07 Pompe à écoulement mixte Expired - Lifetime EP1584820B1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP04405214A EP1584820B1 (fr) 2004-04-07 2004-04-07 Pompe à écoulement mixte
DK04405214T DK1584820T3 (da) 2004-04-07 2004-04-07 Skruecentrifugalpumpe
AT04405214T ATE330126T1 (de) 2004-04-07 2004-04-07 Schraubenzentrifugalradpumpe
DE502004000769T DE502004000769D1 (de) 2004-04-07 2004-04-07 Schraubenzentrifugalradpumpe
PCT/CH2004/000664 WO2005098237A1 (fr) 2004-04-07 2004-11-02 Pompe centrifuge a vis
CNB2004800426761A CN100419271C (zh) 2004-04-07 2004-11-02 螺旋离心泵和使用该螺旋离心泵输送介质的方法
RU2006139075/06A RU2358159C2 (ru) 2004-04-07 2004-11-02 Винтовой центробежный насос
JP2007506630A JP5070039B2 (ja) 2004-04-07 2004-11-02 スクリュー遠心ポンプおよびスクリュー遠心ポンプを使用した、固体添加物で満たされた液体の運搬方法
US10/588,736 US7510368B2 (en) 2004-04-07 2004-11-02 Screw-centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04405214A EP1584820B1 (fr) 2004-04-07 2004-04-07 Pompe à écoulement mixte

Publications (2)

Publication Number Publication Date
EP1584820A1 EP1584820A1 (fr) 2005-10-12
EP1584820B1 true EP1584820B1 (fr) 2006-06-14

Family

ID=34896183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04405214A Expired - Lifetime EP1584820B1 (fr) 2004-04-07 2004-04-07 Pompe à écoulement mixte

Country Status (9)

Country Link
US (1) US7510368B2 (fr)
EP (1) EP1584820B1 (fr)
JP (1) JP5070039B2 (fr)
CN (1) CN100419271C (fr)
AT (1) ATE330126T1 (fr)
DE (1) DE502004000769D1 (fr)
DK (1) DK1584820T3 (fr)
RU (1) RU2358159C2 (fr)
WO (1) WO2005098237A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169234A2 (fr) 2007-07-17 2010-03-31 Gerardus Augustinus Maria Manshanden Pompe submersible sans risque pour les poissons
CN112636910A (zh) * 2020-12-29 2021-04-09 北京深思数盾科技股份有限公司 临时密码的生成与验证方法、设备及系统

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5404140B2 (ja) * 2009-04-01 2014-01-29 株式会社東芝 テンプレート及び半導体装置の製造方法
US8506236B2 (en) * 2009-08-03 2013-08-13 Ebara International Corporation Counter rotation inducer housing
US8550771B2 (en) * 2009-08-03 2013-10-08 Ebara International Corporation Inducer for centrifugal pump
US20110027071A1 (en) * 2009-08-03 2011-02-03 Ebara International Corporation Multi-stage inducer for centrifugal pumps
US9631622B2 (en) * 2009-10-09 2017-04-25 Ebara International Corporation Inducer for centrifugal pump
EP2397698B1 (fr) * 2010-06-17 2012-09-26 Frideco AG Dispositif d'acheminement
CN102400919A (zh) * 2011-11-18 2012-04-04 江苏国泉泵业制造有限公司 一种固液两相流螺旋离心泵
CN102661282A (zh) * 2012-04-16 2012-09-12 杭州萧山美特轻工机械有限公司 开式螺旋纸浆泵
CN103195755B (zh) * 2013-04-11 2015-10-07 南京布鲁克林环保设备有限公司 一种单叶片螺旋离心叶轮
EP2894342B1 (fr) * 2014-01-12 2016-12-28 Alfa Laval Corporate AB Pompe centrifuge à amorçage automatique
DK2894343T3 (en) 2014-01-12 2017-12-11 Alfa Laval Corp Ab SELF-TILTING CENTRIFUGAL PUMP
US10094384B2 (en) 2014-01-24 2018-10-09 Mcfinn Technologies, Llc Radial impeller and casing for centrifugal pump
KR102231079B1 (ko) * 2014-07-08 2021-03-24 엘지전자 주식회사 배수 펌프 어셈블리 및 이를 구비하는 의류 건조기
KR101588137B1 (ko) * 2014-10-24 2016-01-22 엘지전자 주식회사 배수 펌프 어셈블리 및 이를 구비하는 의류 건조기
DE102020125805A1 (de) * 2020-10-02 2022-04-07 Frideco Ag Pumpensystem und Verfahren zum Betrieb eines Pumpensystems
CN115994394B (zh) * 2023-02-21 2023-11-17 上海中韩杜科泵业制造有限公司 离心泵叶轮造型方法、装置以及设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH394814A (de) * 1961-08-29 1965-06-30 Staehle Marin Schneckenradpumpe
AT255912B (de) * 1964-07-01 1967-07-25 Schlesiger & Co Kg Feluwa Schmutzwasser-Kreiselpumpe
GB1315547A (en) 1969-05-23 1973-05-02 Staehle M Axial flow pump for pumping liquids containing solids in suspension
JPS5136721Y2 (fr) * 1973-09-06 1976-09-09
JPS5357507A (en) * 1976-11-04 1978-05-24 Kubota Ltd Cutter underwater pumps
FR2460404A1 (fr) 1979-07-05 1981-01-23 Schneider Hans Ulrich Pompe pour le transport de fluides
SU1132062A1 (ru) 1983-03-10 1984-12-30 Научно-Исследовательский И Конструкторско-Технологический Институт Городского Хозяйства Центробежный насос дл перекачивани неоднородных сред
SU1286817A1 (ru) 1985-04-09 1987-01-30 Центральный Научно-Исследовательский И Проектно-Технологический Институт Механизации И Электрификации Животноводства Южной Зоны Ссср Насос
ES2015517B3 (es) * 1986-02-14 1991-04-16 Rohren- Und Pumpenwerk Rudolf Bauer Ag Bomba centrifuga autoaspirante para tratamiento y transporte de liquidos con alto contenido en fibra.
US4778336A (en) * 1987-07-09 1988-10-18 Weil Pump Company Cutter pump subassembly
SU1677371A1 (ru) 1989-06-08 1991-09-15 А. Э. Кин, О. В. Дадашев и А. И. Рудштейн Насос дл перекачивани неоднородных сред
CN2388377Y (zh) * 1999-08-06 2000-07-19 山东青州市南张石油机械厂 一种剪切泵预剪切装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169234A2 (fr) 2007-07-17 2010-03-31 Gerardus Augustinus Maria Manshanden Pompe submersible sans risque pour les poissons
CN112636910A (zh) * 2020-12-29 2021-04-09 北京深思数盾科技股份有限公司 临时密码的生成与验证方法、设备及系统

Also Published As

Publication number Publication date
US7510368B2 (en) 2009-03-31
WO2005098237A1 (fr) 2005-10-20
RU2006139075A (ru) 2008-05-20
CN100419271C (zh) 2008-09-17
EP1584820A1 (fr) 2005-10-12
DK1584820T3 (da) 2006-07-31
DE502004000769D1 (de) 2006-07-27
JP5070039B2 (ja) 2012-11-07
RU2358159C2 (ru) 2009-06-10
CN1926338A (zh) 2007-03-07
US20070172345A1 (en) 2007-07-26
ATE330126T1 (de) 2006-07-15
JP2007532812A (ja) 2007-11-15

Similar Documents

Publication Publication Date Title
EP1584820B1 (fr) Pompe à écoulement mixte
DE602004006301T2 (de) Zentrifugalpumpe
EP2188532B1 (fr) Roue à aubes de pompe et pompe comprenant une telle roue à aubes de pompe
EP2643595B1 (fr) Pompe à écoulement radial autonettoyante avec recirculation derrière la roue à aubes
EP1906026B1 (fr) Pompe à roue centrifuge
WO2007079890A1 (fr) Roue a aubes pour ensemble de pompe et ensemble de pompe associe
EP3779201A1 (fr) Élément de raclage pour bords d'attaque de roue à aubes pour des pompes à eau
AT402842B (de) Vorrichtung zum pumpen von pülpe
EP1899074B1 (fr) Centrifugeuse a vis
DE202013103972U1 (de) Pumpe mit Schneidrad und Vorzerkleinerer
EP1213517B1 (fr) Joint mécanique pour turbo machines
EP2138723B1 (fr) Pompe centrifuge dotée d'un rotor de courant libre
DE102015212653B4 (de) Haushaltsgerät
EP1344944A1 (fr) Pompe centrifuge avec un dispositif de broyage
DE2442446A1 (de) Pumpe zum foerdern von wasser und abwasser
WO2018019318A1 (fr) Système rotor-stator comprenant une trémie d'entrée pour une pompe à vis excentrée
DE19539564C1 (de) Pumpe mit einer im Saugstutzen angeordneten Schneideinrichtung
DE10103575A1 (de) Maschine,vorzugsweise Strömungsmaschine, z.B. Pumpe, Rührwerk oder dergleichen
LU102840B1 (de) Schneidring für mit Feststoff belastete Flüssigkeit einer Pumpe
DD160237A3 (de) Einrichtung an dickstoffkreiselpumpen
DE102008021767A1 (de) Kreiselpumpe mit Zerkleinerungseinrichtung
DE102021202705A1 (de) Abscheidevorrichtung sowie Verdichter
EP4108934A1 (fr) Ensemble comprenant une roue motrice et une tête de coupe d'une pompe pour fluide chargé de solide
DE202013105512U1 (de) Vorrichtung zum Fördern einer fließfähigen Fördermasse, insbesondere einer Baustoffmischung wie Mörtel
EP0952350A1 (fr) Dispositif pompe pour des matières visqueuses

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050310

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060614

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060614

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502004000769

Country of ref document: DE

Date of ref document: 20060727

Kind code of ref document: P

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060925

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061114

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

EN Fr: translation not filed
26N No opposition filed

Effective date: 20070315

BERE Be: lapsed

Owner name: FRIDECO A.G.

Effective date: 20070430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070309

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060915

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070407

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20080601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: DAS PATENT IST AUFGRUND DES WEITERBEHANDLUNGSANTRAGS VOM 05.12.2008 REAKTIVIERT WORDEN.

Ref country code: CH

Ref legal event code: NV

Representative=s name: DR. GRAF & PARTNER INTELLECTUAL PROPERTY

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070407

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060614

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061215

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: FRIDECO AG

Free format text: FRIDECO AG#GIGERING 27#8213 NEUNKIRCH (CH) -TRANSFER TO- FRIDECO AG#GIGERING 27#8213 NEUNKIRCH (CH)

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWALTSKANZLEI DAUB, CH

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: NEW ADDRESS: POSTFACH, 8058 ZUERICH-FLUGHAFEN (CH)

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: NEW ADDRESS: LEUTSCHENBACHSTRASSE 95, 8050 ZUERICH (CH)

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230421

Year of fee payment: 20

Ref country code: DK

Payment date: 20230419

Year of fee payment: 20

Ref country code: DE

Payment date: 20230418

Year of fee payment: 20

Ref country code: CH

Payment date: 20230502

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20230420

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230421

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 502004000769

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Expiry date: 20240407

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20240406

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20240406