EP1891334B9 - Pompe centrifuge - Google Patents

Pompe centrifuge Download PDF

Info

Publication number
EP1891334B9
EP1891334B9 EP05750409A EP05750409A EP1891334B9 EP 1891334 B9 EP1891334 B9 EP 1891334B9 EP 05750409 A EP05750409 A EP 05750409A EP 05750409 A EP05750409 A EP 05750409A EP 1891334 B9 EP1891334 B9 EP 1891334B9
Authority
EP
European Patent Office
Prior art keywords
impeller
centrifugal pump
pump according
vanes
casing
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.)
Active
Application number
EP05750409A
Other languages
German (de)
English (en)
Other versions
EP1891334B1 (fr
EP1891334A1 (fr
Inventor
Michel Grimm
Jean-Nicolas Favre
Hagen Renger
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.)
EGGER PUMPS Tech AG
Original Assignee
EGGER PUMPS Tech 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 EGGER PUMPS Tech AG filed Critical EGGER PUMPS Tech AG
Priority to PL05750409T priority Critical patent/PL1891334T3/pl
Publication of EP1891334A1 publication Critical patent/EP1891334A1/fr
Application granted granted Critical
Publication of EP1891334B1 publication Critical patent/EP1891334B1/fr
Publication of EP1891334B9 publication Critical patent/EP1891334B9/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
    • 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
    • F04D7/045—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 with means for comminuting, mixing stirring or otherwise treating

Definitions

  • the present invention relates to a centrifugal pump for conveying liquids with solids and gas admixtures, in particular a Kanalradpumpe, according preamble of claim 1.
  • the invention has for its object to provide a centrifugal pump, in which the ability to transport gas accumulations, is significantly improved.
  • a free-flow pump comprises an impeller chamber in which an impeller is arranged, and a vortex chamber extending in front of the impeller chamber, which is provided by blades is not crossed out.
  • the liquid enters the blade channels axially near the hub from the end face of the impeller, migrates outwards on a rim of approximately 180 ° and leaves the impeller in the outer region in the axial, but reverse direction, on the front side.
  • the exiting liquid causes the fluid mass in the vortex chamber by pulse exchange in rotation.
  • Single wider blades will be like in DE 34 08 810 C2 described used to improve the coupling effect on the liquid mass in the swirl chamber. Due to the way the liquid is taken through the impeller, the widening of the blades, which is anyway to be limited, also equals that of a blade extension, measured along the flow path.
  • the per se known centrifugal pump in particular channel wheel pump, an impeller chamber, in which an impeller is arranged, but have no vortex chamber in contrast to free-flow pumps.
  • the interior of the correspondingly redesigned housing of the inventive centrifugal pump now consists of a front and one of them separated by a virtual plane rear room part.
  • the front part of the blade (s) extends while the impeller plate and the rear part of the blade (s) connected thereto are accommodated in the rear space part.
  • FIG. 1 shown is an impeller 10 of a liquid inlet 2 and output 3, respectively. enclosing a suction and outlet opening housing 1.
  • the impeller 10 is mounted on a shaft 60 driven by a motor, not shown.
  • the housing 1, the impeller 10 and the shaft 60 have a common axis of symmetry 1A.
  • the inner space 6 of the housing 1 consists of a front chamber part 5A encompassing an annular space or spiral collecting chamber 4 and a rear room part 5B separated from it by a virtual plane ⁇ T ⁇ .
  • This plane ⁇ T ⁇ roughly coincides with the plane (not shown) which contains the rear (also not referenced) generatrix of the aperture 3 and which is orthogonal to the axis of symmetry 1A.
  • the impeller 10 comprises a number of preferably curved blades 15 carrying a number of preferably curved blades 15, having a front 12 and a rear surface 13, corresponding to the size of the solids.
  • the front part 15F and the rear part 15R of the blade (s) 15 extend in the front 5A respectively.
  • the front edge 16 of the blade 15 may be in the immediate vicinity of the inner surface 7 of the housing wall portion 7A extending around the entrance.
  • the peripheral edge 17 of the front part 15F of the blades 15 can move close to the liquid outlet 3.
  • a defined depending on the design of the pump, rotationally symmetrical housing surface 8, 8A of the housing 1 preferably encloses narrow (that is in the order of a few millimeters) the impeller 11, that is, the peripheral surface 14 and the example according to flush peripheral edges 17 of the blades 15 and the rear part 15R of these blades.
  • the rotation surface 8 is cylindrical around the impeller plate 11, while the rotation surface 8A, for example, cylindrical (on the FIG. 1 this contour is indicated only in a dotted line) or may be conical with a cone angle 2 ⁇ , the angle ⁇ preferably being ⁇ (less than or equal to) 20 °.
  • the choice of impeller design, in particular the peripheral edges 17 and the peripheral surface 14, is determined as known to those skilled in the art in view of the specific speed n q .
  • the impeller plate is arranged such that its front surface is at least approximately in the virtual plane ⁇ T ⁇ , while the blades extend entirely in the impeller chamber located in front of this level ⁇ T ⁇ .
  • the surface 12 of the impeller plate 11 is offset by a distance D to the rear, ie direction drive, the blades are widened by this distance (part 15R of the blades) and the original impeller chamber 5A to another impeller chamber part 5B with the distance D corresponding volume is increased.
  • the experiments have shown that the distance D in a range of 25% to 75% of Total width of the blades should be 15, preferably at about 50% of the total width.
  • the rear surface 13 of the impeller plate 11 may be located in the immediate vicinity of the surface 9 of the rear wall 9A of the housing 1. According to a variant, however, a greater distance can be provided between the surfaces 13, 9 in order to leave room for ribs 18 (on the surface 13) or 19 (on the surface 9) attached to the one and / or other of these surfaces.
  • the ribs 18 known per se may be curved radially or, for example, in a manner similar to the blades 15 (see FIG FIG. 3 , Reference numeral 23).
  • the ribs 19 which are not known, however, are preferably radial and fulfill the function of a swirl brake, avoid a centrifuge effect and thus ensure a better gas flow.
  • FIG. 2 a second embodiment is shown, which in comparison to the first or basic embodiment described above has the same housing 1, but is provided with an over the shaft 60 driven impeller 20 whose impeller plate 21 is provided with a blade system 25.
  • This blade system consists on the one hand of at least one with the blade 15 identical or at least similar wide blade 25L, the front edge 26A can move in the immediate vicinity of the inner surface 7 of the front wall portion 7A of the housing 1, and additionally on the other hand of at least one narrower, preferably curved auxiliary blade 25S extending at least partially in the rear impeller chamber 5B.
  • This means that the leading edge 26B of this auxiliary blade 25S is in the virtual plane ⁇ T ⁇ or in close proximity to that plane ⁇ T ⁇ Area can lie.
  • the latter may be flat and parallel or oblique to the plane ⁇ T ⁇ or curved.
  • the edges 26B may be orthogonal or have a different profile to the axis of symmetry 1A, for example outwardly or inwardly (for illustrative purposes, the dotted line 26C shows a possible tapered shape of the leading edge of the auxiliary blades 25S).
  • the distance D between the front surface 22 of the impeller plate 21 and the front edge 26B corresponding to the width (or average width (determined at about half radius of the impeller blade)) of the auxiliary blades 25S is to be in a range of 25% to 75% of the total width B g of the wide blades 25L, preferably at about 50% of the stated overall width, so that the blades 25S extend substantially only in the rear impeller chamber 5B.
  • the rear surface 23 of the impeller plate 21 may be in the immediate vicinity of the surface 9 of the rear wall 9A of the housing 1 or according to a variant between these surfaces 23, 9 a greater distance may be provided in order to leave enough space for the attachment of preferably radially extending ribs 28 (on the surface 23) and ribs 29 (on the surface 9) on one and / or other of these surfaces.
  • a connected to the shaft 60 impeller 30 with axis 100A of a liquid inlet 102 and exit 103 having housing 100 is enclosed.
  • the housing 100 is similar to the housing 1 and has a front chamber 105A surrounded by a collection chamber 104 similar to the collection chamber 4 and a rear chamber 105B separated by the virtual plane ⁇ T ⁇ .
  • the impeller 30 offset rearwardly by the distance D comprises a vane system 35 connected to an impeller blade 31, which consists of at least one wide vane 35L and at least one small auxiliary vane 35S, preferably three each, as mentioned in the second embodiment.
  • the auxiliary blades 35S may be shaped similar to the auxiliary blades 25S, with only one leading edge 36B shown here.
  • the auxiliary blades 35S and the impeller plate 31 are surrounded by an outer ring 34.
  • the inner surface 34B of the ring 34 can be made conical with a cone angle of 2 ⁇ (with ⁇ preferably ⁇ 20 °).
  • the impeller plate 31, the ring 34 and the associated Auxiliary vanes 35S extend in the impeller chamber 105B.
  • the peripheral edges 37L which can be moved past in relative proximity to the liquid outlet 103, can run parallel or obliquely to the axis of symmetry 100A or else be configured differently.
  • the front edges 36A of the wide blades 35L are covered by a cover plate 40.
  • the latter is rotatably mounted in a ring 110 pressed into a sealing gap 111 in the vicinity of the inlet 102 of the housing 100.
  • the front surface 41 of the cover plate 40 can move in the immediate vicinity of the surface 107 of the wall portion 107A.
  • This cover disk which is known per se, is often provided for stability reasons or for pumps with a low specific speed n q .
  • the rear surface 33 of the impeller plate 31 may be in the immediate vicinity of the surface 109 of the rear wall 109A of the housing 100 or according to a variant between these surfaces 33, 109 a greater distance may be provided to provide sufficient space for to allow the attachment of preferably radially extending ribs 38 (on the surface 33) and ribs 39 (on the surface 109) on one and / or other of these surfaces.
  • the impeller 31 may be provided with at least one hole 45.
  • three or six holes 45 with axis 45A are distributed between the blades 35L and the auxiliary blades 35S and dimensioned accordingly.
  • the axes 45A extend at a distance R parallel to the axis 100A.
  • the dimension of the radius R is preferably selected to be approximately in an interval between one half and two thirds of the peripheral radius of the Impeller plate is located. It has been found that these holes 45 markedly improve the efficiency of escape of the gas to the outside.
  • wheels 11 and 21 according to the first and second embodiment with individual or all based FIG. 4 described additional features of the impeller 30, so outer ring 34, holes 45, cover plate 40, or provided with other features known in the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Reciprocating Pumps (AREA)

Claims (15)

  1. Pompe centrifuge pour le refoulement de liquides contenant des solides et des gaz, plus particulièrement une pompe à roue à canaux, avec un corps (1; 100) ayant une admission (2; 102) et une sortie (3; 103) de liquide antérieure et latérale, respectivement, et entre celles-ci une chambre à roue (5A; 105A) dans laquelle est agencée une roue entraînable comprenant un disque qui porte au moins une aube, les aubes s'étendant dans la chambre à roue du corps, et les arêtes antérieures desdites aubes, tournées vers l'admission de liquide, pouvant au moins partiellement passer à proximité immédiate de la surface intérieure (7; 107) de la partie (7A; 107A) de la paroi du corps qui s'étend autour de l'admission de liquide, d'une part, et les arêtes périphériques (17) pouvant passer devant la sortie de liquide, d'autre part,
    caractérisée en ce que le disque (11) de la roue, muni d'une surface périphérique (14), est déplacé d'une distance définie D vers l'arrière et l'aube ou les aubes (15; 25L; 35L) sont axialement élargies de cette distance, les parties des arêtes périphériques (17) des aubes (15) s'étendant dans la chambre à roue arrière (5B) étant enfermées dans une surface (8, 8A) symétrique de révolution du corps (1), de telle manière que la chambre à roue originale antérieure (5A; 105A) est élargie par une chambre à roue arrière (5B; 105B) séparée de ladite chambre à roue par un plan radial virtuel {T} dont le volume correspond à la distance D, afin d'améliorer le refoulement de gaz.
  2. Pompe centrifuge selon la revendication 1, caractérisée en ce que le disque (21; 31) de la roue muni d'une surface périphérique (24) porte au moins une aube auxiliaire (25S; 35S), et que des parties d'arêtes périphériques (27L, 27S) des aubes (25L) s'étendant dans la chambre à roue arrière (105B) et de l'aube auxiliaire sont enfermées dans la surface symétrique de révolution du corps.
  3. Pompe centrifuge selon la revendication 2, caractérisée en ce que la largeur centrale des aubes auxiliaires (25S; 35S) est comprise entre 25 % et 75 % et préférablement égale à 50 % de la largeur centrale des aubes (25L; 35L).
  4. Pompe centrifuge selon la revendication 2 ou 3, caractérisée en ce que la roue (20; 30) comporte trois aubes (25L; 35L) et trois aubes auxiliaires (25S; 35S).
  5. Pompe centrifuge selon l'une des revendications 1 à 4, caractérisée en ce que le disque (11; 21; 31) de la roue est pourvu d'au moins un trou (45).
  6. Pompe centrifuge selon l'une des revendications 1 à 5, caractérisée en ce la surface intérieure (9; 109) de la paroi arrière (9A; 109A) du corps en regard de la face arrière (13; 23; 33) du disque (11; 21; 31) de la roue est munie de nervures (19; 29; 39) s'étendant préférablement en direction radiale.
  7. Pompe centrifuge selon l'une des revendications 1 à 6, caractérisée en ce la face arrière (13; 23; 33) du disque (11; 21; 31) de la roue est munie de nervures (18; 28; 38) préférablement incurvées.
  8. Pompe centrifuge selon l'une des revendications 2 à 7, caractérisée en ce que la surface (8A) symétrique de révolution du corps (1) qui enferme les aubes (15; 25L) et aubes auxiliaires (25) s'étendant dans la chambre à roue arrière (5B) est de forme conique avec un angle de conicité de 2γ, γ étant préférablement inférieur ou égal à 20°.
  9. Pompe centrifuge selon l'une des revendications 2 à 8, caractérisée en ce que le disque (31) de la roue est muni d'un anneau (34) entourant les aubes auxiliaires (35S).
  10. Pompe centrifuge selon la revendication 9, caractérisée en ce que la surface extérieure (34A) de l'anneau (34) est enfermée dans une surface (108) symétrique de révolution du corps (100).
  11. Pompe centrifuge selon la revendication 9 ou 10, caractérisée en ce la surface intérieure (34B) de l'anneau (34) est conique avec un angle de conicité de 2γ, γ étant préférablement inférieur ou égal à 20°.
  12. Pompe centrifuge selon l'une des revendications 1 à 11, caractérisée en ce que la roue comporte un disque de couverture antérieur.
  13. Pompe centrifuge selon l'une des revendications 2 à 12, caractérisée en ce que les arêtes (26B; 26C; 36B) antérieures des aubes auxiliaires (25S; 35S) sont orthogonales à l'axe de symétrie (1A; 100A).
  14. Pompe centrifuge selon l'une des revendications 2 à 14, caractérisée en ce que les arêtes antérieures (26B; 26C; 36B) des aubes auxiliaires (25S; 35S) montent vers l'extérieur ou vers l'intérieur par rapport à l'axe de symétrie (1A; 100A) ou présentent toute autre allure.
  15. Pompe centrifuge selon l'une des revendications 1 à 14, caractérisée en ce que les arêtes périphériques (17; 27L; 37L) du système à aubes (15; 25; 35) déplaçables à proximité relative de la sortie de liquide (3; 103) sont parallèles ou inclinées par rapport à l'axe de symétrie (1A; 100A) ou présentent une autre conformation.
EP05750409A 2005-06-16 2005-06-16 Pompe centrifuge Active EP1891334B9 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05750409T PL1891334T3 (pl) 2005-06-16 2005-06-16 Pompa wirowa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2005/000337 WO2006133577A1 (fr) 2005-06-16 2005-06-16 Pompe centrifuge

Publications (3)

Publication Number Publication Date
EP1891334A1 EP1891334A1 (fr) 2008-02-27
EP1891334B1 EP1891334B1 (fr) 2009-01-14
EP1891334B9 true EP1891334B9 (fr) 2009-08-26

Family

ID=34970104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05750409A Active EP1891334B9 (fr) 2005-06-16 2005-06-16 Pompe centrifuge

Country Status (12)

Country Link
US (1) US8025478B2 (fr)
EP (1) EP1891334B9 (fr)
JP (1) JP5384103B2 (fr)
CN (1) CN101208521B (fr)
AT (1) ATE421043T1 (fr)
BR (1) BRPI0520297B1 (fr)
CA (1) CA2611141C (fr)
DE (1) DE502005006506D1 (fr)
DK (1) DK1891334T3 (fr)
ES (1) ES2318497T3 (fr)
PL (1) PL1891334T3 (fr)
WO (1) WO2006133577A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102105697B (zh) 2008-05-27 2013-11-20 伟尔矿物澳大利亚私人有限公司 泥浆泵叶轮
EP2233746B1 (fr) * 2009-03-11 2016-10-26 Askoll Holding S.r.l. Pompe de décharge centrifuge dotée d'un rotor à pales pour machines à laver ou appareils domestiques similaires
CN102121479A (zh) * 2010-01-08 2011-07-13 江苏尚宝罗泵业有限公司 泵
DE102013007849A1 (de) * 2013-05-08 2014-11-13 Ksb Aktiengesellschaft Pumpenanordnung
CN104564851B (zh) * 2015-01-30 2017-05-17 上海德耐泵业有限公司 多相流反应器
CN105020184B (zh) * 2015-07-29 2017-04-12 湖北三宁化工股份有限公司 气提液涡轮泵
JP6634929B2 (ja) * 2015-12-16 2020-01-22 株式会社デンソー 遠心送風機
US10473113B2 (en) * 2015-12-16 2019-11-12 Denso Corporation Centrifugal blower
WO2018014968A1 (fr) * 2016-07-22 2018-01-25 Egger Pumps Technology Sa Corps de pompe centrifuge pouvant être monté sur un réservoir
RU2667251C1 (ru) * 2017-10-05 2018-09-18 Акционерное общество "Объединенная двигателестроительная корпорация" (АО "ОДК") Коробка приводных агрегатов
KR102334763B1 (ko) * 2020-02-26 2021-12-03 주식회사 유니크 전자식 워터 펌프

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272469A (en) * 1939-12-23 1942-02-10 Chicago Pump Co Centrifugal pump
US3130678A (en) * 1961-04-28 1964-04-28 William F Chenault Centrifugal pump
CH633617A5 (de) * 1978-08-31 1982-12-15 Martin Staehle Kreiselpumpe mit einschaufel-laufrad zur foerderung von langfaserigen aufgeschwemmten feststoffen.
MX157817A (es) * 1981-12-08 1988-12-15 Emule Egger & Cie S A Mejoras a bomba rotativa de circulacion libre de fluidos
CH660511A5 (en) 1982-12-22 1987-04-30 Martin Staehle Centrifugal pump having a single-blade impeller
JPS59165891A (ja) * 1983-03-10 1984-09-19 Ebara Corp 渦流ポンプ
JPS63105793U (fr) * 1986-12-26 1988-07-08
JPH0299294U (fr) * 1989-01-25 1990-08-07
US4981413A (en) * 1989-04-27 1991-01-01 Ahlstrom Corporation Pump for and method of separating gas from a fluid to be pumped
US5104541A (en) * 1990-05-10 1992-04-14 Daniel William H Oil-water separator
GB2337795A (en) * 1998-05-27 1999-12-01 Ebara Corp An impeller with splitter blades
CN2360609Y (zh) * 1998-12-02 2000-01-26 亚瑞亚·勃朗勃威力有限公司 用于高速涡轮的压气机叶轮固定装置
FI111023B (fi) * 1998-12-30 2003-05-15 Sulzer Pumpen Ag Menetelmä ja laite materiaalin pumppaamiseksi sekä laitteen yhteydessä käytettävä roottori
JP2000240584A (ja) * 1999-02-18 2000-09-05 Ebara Corp ボルテックスポンプ
US20040234370A1 (en) * 2002-09-26 2004-11-25 Mark Simakaski Chopping pump impeller assembly
US7037069B2 (en) * 2003-10-31 2006-05-02 The Gorman-Rupp Co. Impeller and wear plate

Also Published As

Publication number Publication date
CA2611141A1 (fr) 2006-12-21
PL1891334T3 (pl) 2009-07-31
DK1891334T3 (da) 2009-05-11
ES2318497T3 (es) 2009-05-01
JP5384103B2 (ja) 2014-01-08
DE502005006506D1 (de) 2009-03-05
CA2611141C (fr) 2013-01-22
EP1891334B1 (fr) 2009-01-14
EP1891334A1 (fr) 2008-02-27
CN101208521B (zh) 2011-08-31
BRPI0520297B1 (pt) 2018-06-26
ATE421043T1 (de) 2009-01-15
CN101208521A (zh) 2008-06-25
WO2006133577A1 (fr) 2006-12-21
BRPI0520297A2 (pt) 2009-04-28
US20090324402A1 (en) 2009-12-31
US8025478B2 (en) 2011-09-27
JP2008544132A (ja) 2008-12-04

Similar Documents

Publication Publication Date Title
EP1891334B9 (fr) Pompe centrifuge
EP0774077B2 (fr) Pompe a circulation destinee a amener du carburant d'un reservoir au moteur a combustion interne d'un vehicule
EP0112932B1 (fr) Ventilateur radial avec des aubes profilées courbées en arrière
DE102010046870B4 (de) Seitenkanalgebläse, insbesondere Sekundärluftgebläse für eine Verbrennungskraftmaschine
EP3171970B1 (fr) Dispositif d'organe d'agitation
DE4006604C2 (fr)
EP3311922B1 (fr) Broyeur à billes à agitateur
DE3539604C1 (de) Axialgeblaese
EP0392975A1 (fr) Suralimentateur rotatif à spirales pour milieux compressibles
DE112015002306T5 (de) Turbolader
EP2386030B1 (fr) Pompe centrifuge dotée d'un dispositif d'enlèvement de particules
WO2016110373A1 (fr) Soufflante à canal latéral pour un moteur à combustion interne
DE4311746A1 (de) Kreiselpumpenlaufrad
DE2322772B2 (de) Abwasserpumpe
DE3315477A1 (de) Staubabscheider
EP0560863B1 (fr) Tube plongeur pour separateur de melanges de substances
EP3303845B1 (fr) Ensemble de pompes à amorçage automatique
EP0443354B1 (fr) Pompe centrifuge
DE10314425B4 (de) Leitvorrichtung für ein in Blechbauweise ausgeführtes Gehäuse einer Kreiselpumpe
CH700016B1 (de) Gleitringdichtung.
DE10233582A1 (de) Flügelzellenpumpe zur Förderung eines Fluids
EP2138723B1 (fr) Pompe centrifuge dotée d'un rotor de courant libre
DE2258737A1 (de) Seitenkanalverdichter
EP1538369A1 (fr) Contour de guidage d'huile dans un carter de transmission
DE2857227C2 (de) Mehrflutige Flüssigkeitsringgaspumpe

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: 20071126

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 IS IT LI LT LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20080310

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
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 IS IT LI LT LU MC NL PL PT RO SE SI SK TR

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: AMMANN PATENTANWAELTE AG BERN

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: 502005006506

Country of ref document: DE

Date of ref document: 20090305

Kind code of ref document: P

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2318497

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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: 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: 20090114

Ref country code: LT

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: 20090114

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: IS

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: 20090514

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: 20090615

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

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: 20090114

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: 20090114

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

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

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: 20090114

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: 20090114

26N No opposition filed

Effective date: 20091015

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: 20090414

Ref country code: MC

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

Effective date: 20090630

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

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: 20090415

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: 20090616

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

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: 20090715

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

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: 20090114

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

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

Ref country code: PL

Payment date: 20190523

Year of fee payment: 15

Ref country code: NL

Payment date: 20190619

Year of fee payment: 15

Ref country code: CZ

Payment date: 20190527

Year of fee payment: 15

Ref country code: DK

Payment date: 20190621

Year of fee payment: 15

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

Ref country code: SE

Payment date: 20190516

Year of fee payment: 10

Ref country code: BE

Payment date: 20190619

Year of fee payment: 15

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

Ref country code: CH

Payment date: 20190626

Year of fee payment: 15

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

Ref country code: GB

Payment date: 20190619

Year of fee payment: 15

Ref country code: AT

Payment date: 20190621

Year of fee payment: 15

REG Reference to a national code

Ref country code: FI

Ref legal event code: MAE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20200630

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

Ref country code: FI

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

Effective date: 20200616

Ref country code: CZ

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

Effective date: 20200616

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20200701

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 421043

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200616

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200616

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200630

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

Ref country code: CH

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

Effective date: 20200630

Ref country code: LI

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

Effective date: 20200630

Ref country code: GB

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

Effective date: 20200616

Ref country code: NL

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

Effective date: 20200701

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: 20200630

Ref country code: AT

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

Effective date: 20200616

Ref country code: SE

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

Effective date: 20200617

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

Ref country code: DK

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

Effective date: 20200630

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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

Ref country code: IT

Payment date: 20220627

Year of fee payment: 18

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

Ref country code: TR

Payment date: 20220613

Year of fee payment: 18

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

Ref country code: FR

Payment date: 20220628

Year of fee payment: 18

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

Ref country code: ES

Payment date: 20220829

Year of fee payment: 18

Ref country code: DE

Payment date: 20220620

Year of fee payment: 18

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

Ref country code: PL

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

Effective date: 20200616

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502005006506

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20240103