EP1375924B1 - Volute de pompe centrifuge - Google Patents

Volute de pompe centrifuge Download PDF

Info

Publication number
EP1375924B1
EP1375924B1 EP20030013665 EP03013665A EP1375924B1 EP 1375924 B1 EP1375924 B1 EP 1375924B1 EP 20030013665 EP20030013665 EP 20030013665 EP 03013665 A EP03013665 A EP 03013665A EP 1375924 B1 EP1375924 B1 EP 1375924B1
Authority
EP
European Patent Office
Prior art keywords
annular channel
volute
wall
annular
radial
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
EP20030013665
Other languages
German (de)
English (en)
Other versions
EP1375924A2 (fr
EP1375924A3 (fr
Inventor
Markus Pawlik
Maico Ludwig
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.)
GEA Tuchenhagen GmbH
Original Assignee
GEA Tuchenhagen 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
Priority claimed from DE10314425A external-priority patent/DE10314425B4/de
Application filed by GEA Tuchenhagen GmbH filed Critical GEA Tuchenhagen GmbH
Publication of EP1375924A2 publication Critical patent/EP1375924A2/fr
Publication of EP1375924A3 publication Critical patent/EP1375924A3/fr
Application granted granted Critical
Publication of EP1375924B1 publication Critical patent/EP1375924B1/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4266—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps made of sheet metal

Definitions

  • the invention relates to a housing of a centrifugal pump according to the preamble of claim 1.
  • a housing of the generic type is from the EP-A-0 455 542 known.
  • a guide device is part of a pump chamber formed from two concentric chambers.
  • This pump chamber consists on the one hand of a rotationally symmetrical center chamber with T-shaped axial section, which is called blade chamber and in which concentrically rotates the blade wheel, and on the other hand of a guide forming annularbians lakehunt, an axial section in the form of an inverted L with rounded corner and has a substantially constant width and which radially and then axially extends the Schaufelradhunt at the level of the arms of the T-shaped axial section.
  • the two peripheral housing walls of the annular circumferential conveying chamber are each formed circular, so that the passage cross section of the circumferential conveying chamber, seen over the circumference, is immutable.
  • the circumferentially-dependent change in the passage cross-section of the annular channel is achieved in that the multi-part second housing part forms a concentric to the pump axis rotating, outwardly open annular channel of constant width and radial depth, in the groove bottom a ring with over the The scope of variable radial thickness is embedded in a form-fitting manner.
  • the DE-A-20 47 541 shows a pump housing formed from two deep-drawn housing parts, in which the guide device bounded on the outside by a circular peripheral wall of the first housing part and the spiral space is formed by a spirally extending pulling at least one housing wall of the housing over the circumference of the impeller.
  • the proposed geometry of the pump housing and its guide designed relatively complicated and the proposed connection and sealing of the two housing parts together is cleaning technology and hygienic problematic.
  • a centrifugal pump wherein the two housing parts are integrally formed and in which a raised portion which is integrally formed on the impeller carrying the second housing part has a varying around the center of the second housing part diameter to form a spiral surface
  • the figures reveal 3 to 6 of the EP-B-0 316 392
  • a centrifugal pump is placed under protection with a for rotation in a plane within the spiral outflow channel (annular channel) and centrally attached to the circular mecanicswandung the first housing part impeller.
  • Figure 7 shows the EP-B-0 316 392 a centrifugal pump in which, in contrast to the above solution, the outflow channel (annular channel) is formed in the first housing part penetrated by the suction nozzle, wherein the spiral surface is also determined in this case by a diameter of a raised section which varies around the center of the first housing part, which is also cheap to edit.
  • Housing for centrifugal pumps in sheet metal design increasingly compete there with those with cast housings, where the price / performance ratio on the one hand and the weight, the absence of pores and the surface quality of the rolled starting material on the other hand become decisive selection criteria for a centrifugal pump.
  • Casing wall thicknesses manufactured in rolled material are only dependent on the working pressure of the centrifugal pump, whereas in cast casings for technical reasons a minimum wall thickness must not be undershot, which in many cases is oversized in view of the occurring stress.
  • cast housings are generally regarded as dimensionally stable and thus functionally reliable; their shape is well known (see for example DE 25 29 458 C2 or company publication 5.046.1, Tuchenhagen, centrifugal pumps, series VPB, VPC, VPD ... L, Otto Tuchenhagen GmbH & Co. KG, D-21510 Büchen).
  • a ring channel limiting annular channel housing not as an independent housing component, which must then be necessarily connected to a first and a second housing part (see, eg DE 195 34 258 C2 ), or provide a separate ring whose circumferentially variable cross-section determines the circumferential variation of the passage cross-section of the annular channel (see, eg GB-A-1 013 341 ), but the annular channel housing in a conventional manner ( EP-A-0 455 542 ) integrally integrate into the second housing part.
  • first and the second housing part are each formed in one piece, that surrounds the impeller surrounding a vaneless annular space constant passage cross section immediately and without cross-sectional reduction in the annular channel and that the annular channel is bounded on the side of the second housing part of a first radial annular surface which is oriented substantially radially, which continues after the inner annular channel housing wall latter and which is sealed together with the outer annular channel housing wall.
  • the impeller and on the outside a housing parts supporting Mounting flange arranged, whereby the center of the first housing part is available for the coaxial connection of an inlet connection.
  • the more critical connection conditions are in the spiral annular channel.
  • the inner annular channel housing wall is formed in the connection area of the pressure nozzle in such a way that the necessary connection cross section between the outer and inner annular channel housing wall is ensured. This is achieved by the fact that in the connection area of the pressure port, the inner annular channel housing wall is formed planar, with this flat wall surface connects tangentially to the inner annular channel housing wall in the region of the largest passage cross-section of the (spiral) annular channel. At its other end, the flat wall surface is adapted with a curved surface to the inner annular channel housing wall in the region of the narrowest passage cross-section of the (spiral) annular channel.
  • the one-piece housing parts can be performed by their relatively simple geometry without particular difficulties in sheet metal design, so that there are very favorable conditions for a sufficiently good surface quality of all coming into contact with the product inner surfaces of the centrifugal pump.
  • the relatively simple geometry of the first and the second housing part in the region of the outer contour of the impeller makes it possible to adapt the two housing parts with relatively narrow annular gaps to the impeller, whereby the efficiency is favorably influenced.
  • the housing geometry allows for a readily the arrangement of a closed impeller in the housing without significant gap losses and Totraum Struktur, on the other hand, without further narrowing of the annular gap and the housing shape, the arrangement of an impeller radial or semi-axial design with possible from the inlet to the exit region in each case to an impeller side open blade channels.
  • the axial extension region of the outer annular channel housing wall i. the axial extent of the first housing part, only enlarged.
  • the axial extent is extended.
  • the connection region of the two housing parts on the one hand and the geometry of the centrifugal pump, seen radially, on the inside of the annular channel remain largely unchanged.
  • the discharge nozzle is arranged centrally to this length, as provided for an advantageous embodiment of the invention. If the volume flow of the centrifugal pump fails relatively small, so that the axial extension length of the passage cross-section of the annular channel is dimensioned correspondingly small, provides a further embodiment of the invention, that the discharge nozzle off-center to this length, offset towards the impeller, is arranged. In this case, the discharge nozzle engages at least partially in the blade-less annular space surrounding the impeller. However, no flow impediments result from this situation, since according to the invention the vaneless annular space passes into the annular channel without cross-sectional reduction.
  • the sealing of the two housing parts together in the outer region of the annular channel is particularly hygienic and easy to clean if in the first radial annular surface a sealing groove is provided, in which a housing seal is arranged in an annular channel directed to the annular gap between the outer ring channel housing wall and the first radial annular surface simultaneouslyulstet and largely flush with the interior contour of the annular channel.
  • a further embodiment of the invention provides that the first radial annular surface continues over the region of the sealing groove in a substantially radially outward direction and that adjoins the outer annular channel housing wall a corresponding to the first radial annular surface and releasably connected second radial annular surface connects, which has a recess at its outer end, with which it comprises the peripheral boundary surface of the first radial annular surface on the outside.
  • Another advantageous embodiment of the guide device provides to form these in the form of a spiral annular channel.
  • a continuously widening passage cross section of the spiral annular channel with the best possible efficiencies can be achieved, it is limited in its outer boundary area by the outer ring channel housing wall which surrounds the pump axis concentric and with a constant radius of curvature, thus circular.
  • the required by the spiral profile cross-sectional change over the circumference of the annular channel is carried by the inner annular channel housing wall, which is designed in the required manner with a variable over the circumference, the spiral course forming local radius of curvature.
  • the entire requirements for the geometry of the passage cross-section of the Ring channel in the second housing part as far as they relate to the configuration of the continuously changing over the circumference spiraling course.
  • integrated annular channel offers in the context of the overall arrangement even more advantages.
  • the ability to disassemble the first housing part alone, is given by the proposed solution, so that an immediate access to the impeller is maintained without putting the drive motor connected to the second housing part via a mounting flange.
  • the ability to separate the impeller including shaft and drive motor from the rest of the housing without having to dismantle the suction and discharge line from the housing, is also retained by the proposed solution. This process design is ensured by the arrangement of the pressure port on the outer ring channel housing wall.
  • One of a first and a second housing part 2, 3 existing housing 1 of a centrifugal pump is mounted on a mounting flange 10 on a flying motor 8 FIG. 1 ).
  • a discharge nozzle 6 is connected, which ends via a conical extension 6a in a connecting piece 6b.
  • the first and the second housing part 2, 3 are adapted in their radial extent range, each with a narrow annular gap, to an impeller 7 fastened to a shaft 11.
  • On the annular circumferential impeller outlet cross-section is followed by a shovelless annular space 4a on the outside, which is bounded in the radial direction initially on both sides of the first and second housing part 2, 3 and then outside bounded by a transition surface 2d of the first housing part 2.
  • This transition surface 2d is then continued in an outer annular channel housing wall 2a, wherein this has the shape of a cylinder jacket, ie, a constant radius of curvature, the outer radius R a , has.
  • the second housing part 3 is formed in the region of the impeller 7 as a radially extending disk.
  • a mainly axially oriented, the impeller 7 in the axial direction fortstrebende, the pump axis enclosing inner ring channel housing wall 3a connects, the local radius of curvature r i is variable to realize the helical course over the circumference.
  • the outer and inner annular channel housing wall 2a, 3a thus form between them the ever-changing passage cross section of a spiral annular channel 4 *.
  • Even a vane-free annular space 4 with a constant passage cross-section can easily be integrally integrated in the second housing part 3.
  • the (spiral) annular channel (4 *), 4 adjoins the side of the blade-less annular space 4a and has an axial extent adapted to the volume flow conditions of the respective centrifugal pump.
  • the axial width, which is constant over the circumference of the annular channel 4, 4 *, is in FIG. 2 marked B.
  • FIG. 3 shows how the spiral annular channel 4 *, seen over the circumference, steadily widened.
  • the passage cross-section of the spiral annular channel 4 * increases steadily from a minimum cross section to a point where FIG. 3 the horizontal center line forms a vertical with a parallel to the longitudinal axis of the pressure port 6.
  • the inner ring channel housing wall 3a is continuously curved (end point / connection point P).
  • a planar wall region 3b adjoins, which ensures a passage cross-section in the region of the spiral-shaped annular channel 4 * which corresponds at least to the passage cross-section of the pressure port 6.
  • planar wall region 3b has a tilt angle ⁇ directed radially inwards at the end point P and that this flat wall region 3b bridges a peripheral region defined by an exit angle ⁇ on the inner annular channel housing wall 3a.
  • This exit angle ⁇ which relates to the pump axis and the circumferential direction, results from the penetration area of the pressure port 6 with the outer annular channel housing wall 2a.
  • the end region of the planar wall region 3b merges with a rounding radius k into the inner annular channel housing wall 3a. This transitional area is marked Q.
  • the longitudinal distance between the end point P and the transition region Q is dimensioned such that there on the one hand the minimum required passage cross-section of the pressure port 6 and on the other hand still a sufficient circumferential length of the spiral annular channel 4 * are ensured.
  • the level Wall portion 3b in the area PQ can not be dimensioned lengthwise so that the nominal passage cross-section of a connecting piece 6b is achieved, the conical extension 6a between the cylindrical pressure port 6 and the connecting piece 6b for connecting a pressure line, not shown required.
  • a solution is proposed in which the conical extension 6a begins at the connecting piece 6b and extends into the penetration area with the outer annular channel housing wall 2a.
  • the outer axial boundary of the spiral-shaped annular channel 4 * is reached via a first radial annular surface 3c, which is part of the second housing part 3 and adjoins the inner annular channel housing wall 3a in a radially oriented first radial annular surface 3c which is removed from the pump axis in the radial direction ( FIG. 2 ).
  • the first radial annular surface 3c continues over the outermost radial extent of the outer annular channel housing wall 2a in the radial direction to the outside. Also on the outer annular channel housing wall 2a is followed by a radially oriented, with the first radial annular surface 3c and releasably connected second radial annular surface 2b connects.
  • Both the first and the second radial annular surface 3c, 2b have a plurality of through-holes 12, which are distributed over their circumference and correspond to each other, via which the first and the second housing parts 2, 3 are connected to one another.
  • the concentric alignment of the housing parts 2, 3 to each other succeeds by a recess 2c which is formed on the outer end of the second radial annular surface 2b and which comprises the peripheral boundary surface of the first radial annular surface 3c on the outside on a maximum possible diameter.
  • the annular channel 4, 4 * is sealed in the corner region, which is formed between the first and the second housing part 2, 3, by means of a housing seal 9 against the environment, wherein the housing seal 9 in a formed in this area in the first radial annular surface 3c sealing groove 3d recording takes place.
  • the housing seal 9 bulges in a to the interior of the annular channel 4, 4 * directed annular gap between the first and the second housing part 2, 3 and largely flush with the interior contour of the annular channel 4, 4 * from.

Landscapes

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

Claims (6)

  1. Volute d'une pompe centrifuge constituée d'une première et une seconde parties de volute (2, 3) qui sont formées respectivement en une seule pièce, la première partie de volute (2) présentant une paroi de volute de canal annulaire (2a) extérieure circulaire s'étendant essentiellement de manière cylindrique formant la circonférence extérieure d'un canal annulaire (4 ; 4*) et un raccord de refoulement (6) débouchant de ladite paroi de volute de canal annulaire (2a) extérieure, qui est raccordé de manière tangentielle à la paroi de volute de canal annulaire (2a) extérieure, dans laquelle la seconde partie de volute (3) présente une paroi de volute de canal annulaire (3a) intérieure formant la circonférence intérieure du canal annulaire (4 ; 4*) dont la course est parallèle à la paroi de volute de canal annulaire (2a) extérieure, et avec une zone de roue (7) disposée de manière coaxiale à la paroi de volute de canal annulaire (2a) extérieure et, vu dans la direction axiale, à l'extérieur d'une zone entourée par le canal annulaire (4 ;4*), dans laquelle un raccord d'entrée (5) est disposé de manière coaxiale à la première partie de volute (2), dans laquelle une bride de fixation (10) portant les parties de volute (2, 3) est disposée au niveau de la seconde partie de volute (3) à l'intérieur de la zone de roue (7) et à l'extérieur, dans laquelle un espace annulaire (4a) sans aube, de section de passage constante et entourant la zone de roue (7) se transforme directement et sans réduction de section en le canal annulaire (4 ; 4*) et dans laquelle le canal annulaire (4 ; 4*) est encadré du côté de la seconde partie de volute (3) par une première surface annulaire radiale (3c) qui est orientée essentiellement radialement, qui à la suite de la paroi de volute de canal annulaire (3a) intérieure prolonge cette dernière et qui est réunie de manière étanche avec la paroi de volute de canal annulaire (2a) extérieure,
    caractérisée en ce que
    la paroi de volute de canal annulaire (3a) intérieure possède un rayon de courbure (ri) local variable sur la circonférence qui définit la variation dépendante de la circonférence de la section de passage du canal annulaire (4 ; 4*), la paroi de volute de canal annulaire (3a) intérieure est réalisée dans la zone de pénétration du raccord de refoulement (6) à surface plane sous forme d'une zone de paroi (3b) plane et cette zone de paroi (3b) plane possède d'un côté, dans son point de raccordement (P) à la paroi de volute de canal annulaire (3a) intérieure courbée de manière continue, un angle d'inclinaison (β) dirigé radialement vers l'intérieur par rapport à la tangente au point de raccordement (P) et de l'autre côté, vu dans la direction circonférentielle, se transforme avec un rayon d'arrondissage (k) en la paroi de volute de canal annulaire (3a) intérieure.
  2. Volute de pompe centrifuge selon la revendication 1,
    caractérisée en ce que
    une rainure d'étanchéité (3d) est prévue dans la première surface annulaire radiale (3c), dans laquelle est disposé un joint de volute (9) qui déborde dans un jeu annulaire orienté vers le canal annulaire (4, 4*) entre la paroi de volute de canal annulaire (2a) extérieure et la première surface annulaire radiale (3c) et se termine en majeure partie à surface plane avec le contour d'espace intérieur du canal annulaire (4, 4*).
  3. Volute de pompe centrifuge selon la revendication 1 ou 2,
    caractérisée en ce que
    la première surface annulaire radiale (3c) se prolonge au-delà de la zone de la rainure d'étanchéité (3d) essentiellement dans la direction radiale vers l'extérieur et une seconde surface annulaire radiale (2b) correspondant à et raccordée de manière détachable avec la première surface annulaire radiale (3c) se joint à la paroi de volute de canal annulaire (2a) extérieure, ladite seconde surface annulaire radiale (2b) présentant à son extrémité extérieure un enfoncement (2c) avec lequel elle englobe la surface marginale côté circonférence de la première surface annulaire radiale (3c) à l'extérieur.
  4. Volute de pompe centrifuge selon l'une des revendications 1 à 3,
    caractérisée par un canal annulaire (4*) en spirale dont la paroi de volute de canal annulaire (2a) extérieure est réalisée avec un rayon externe (Ra) constant et dont la paroi de volute de canal annulaire (3a) intérieure est réalisée avec le rayon de courbure (ri) local variable sur la circonférence et formant la course en spirale.
  5. Volute de pompe centrifuge selon l'une des revendications 1 à 4,
    caractérisée en ce que
    le raccord de refoulement (6) est disposé centré par rapport à la longueur d'extension axiale de la section de passage du canal annulaire (4 ; 4*).
  6. Volute de pompe centrifuge selon l'une des revendications 1 à 4,
    caractérisé en ce que
    le raccord de refoulement (6) est disposé de manière excentrique par rapport à la longueur d'extension axiale de la section de passage du canal annulaire (4 ; 4*), décalé en direction de la roue (7).
EP20030013665 2002-06-22 2003-06-17 Volute de pompe centrifuge Expired - Lifetime EP1375924B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10227963 2002-06-22
DE10227963 2002-06-22
DE10314425A DE10314425B4 (de) 2002-06-22 2003-03-31 Leitvorrichtung für ein in Blechbauweise ausgeführtes Gehäuse einer Kreiselpumpe
DE10314425 2003-03-31

Publications (3)

Publication Number Publication Date
EP1375924A2 EP1375924A2 (fr) 2004-01-02
EP1375924A3 EP1375924A3 (fr) 2004-03-10
EP1375924B1 true EP1375924B1 (fr) 2010-01-06

Family

ID=29718101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030013665 Expired - Lifetime EP1375924B1 (fr) 2002-06-22 2003-06-17 Volute de pompe centrifuge

Country Status (1)

Country Link
EP (1) EP1375924B1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924188C (de) * 1942-05-07 1955-02-28 Siemen & Hinsch Gmbh Spiralgehaeuse fuer Kreiselpumpen
FR2661717B1 (fr) * 1990-05-04 1992-07-03 Esswein Sa Motopompe centrifuge silencieuse a liquide.
US5076758A (en) * 1990-07-18 1991-12-31 Ingersoll-Rand Company Centrifugal pumps
DE9422236U1 (de) * 1993-08-27 1999-12-16 Motoren Ventilatoren Landshut Gmbh, 84030 Landshut Pumpe für Flüssigkeiten

Also Published As

Publication number Publication date
EP1375924A2 (fr) 2004-01-02
EP1375924A3 (fr) 2004-03-10

Similar Documents

Publication Publication Date Title
DE69005510T2 (de) Pumpe um Gas von einer zu pumpenden Flüssigkeit abzutrennen.
DE10327574B4 (de) Laufrad für eine Kraftstoffpumpe
DE69304770T2 (de) Pumpengehäuse in Blechbauweise
DE69727272T2 (de) Flügelzellenpumpe
EP0392975B1 (fr) Suralimentateur rotatif à spirales pour milieux compressibles
EP1891334B9 (fr) Pompe centrifuge
DE10327573B4 (de) Einstufige Strömungspumpe
EP1828609B1 (fr) Pompe rotative a ailettes
DE19519799B4 (de) Kreiselpumpe
DE102007032228A1 (de) Selbstansaugende Pumpenaggregation
DE69026758T2 (de) Kreiselpumpengehäuse
DE19539162C2 (de) Radialrad für eine geschlossene Kreiselpumpe
DE10314425B4 (de) Leitvorrichtung für ein in Blechbauweise ausgeführtes Gehäuse einer Kreiselpumpe
EP3303845B1 (fr) Ensemble de pompes à amorçage automatique
EP1375924B1 (fr) Volute de pompe centrifuge
EP0772743B1 (fr) Pompe a liquide
DE102004060551A1 (de) Flügelzellenpumpe
DE102011106525A1 (de) Dispergierpumpe
DE69106779T2 (de) Einstufige Kreiselpumpe mit einem peripherisch-axialen Diffusor.
DE60025311T2 (de) Mehrkanalige Seitenkanalpumpe
DE102008056106B4 (de) Seitenkanalgebläse, insbesondere Sekundärluftgebläse für eine Verbrennungskraftmaschine
EP1327781B1 (fr) Pompe centrifuge auto-amorçante
EP0644317B1 (fr) Pompe à anneau liquide
DE20210003U1 (de) Flüssigkeitsringpumpe
EP1411249B1 (fr) Unité de pompage

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

AK Designated contracting states

Kind code of ref document: A2

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

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20040702

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 PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20070207

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LUDWIG, MAICO

Inventor name: PAWLIK, MARKUS

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GEA TUCHENHAGEN GMBH

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 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: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 50312311

Country of ref document: DE

Date of ref document: 20100225

Kind code of ref document: P

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20100106

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: 20100106

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: 20100417

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: 20100506

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: 20100106

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: 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: 20100106

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: 20100106

Ref country code: SE

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: 20100106

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: 20100106

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: 20100106

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: 20100407

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: 20100106

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: 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: 20100106

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: 20100406

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: 20100106

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

Ref country code: DE

Payment date: 20100611

Year of fee payment: 8

26N No opposition filed

Effective date: 20101007

BERE Be: lapsed

Owner name: GEA TUCHENHAGEN G.M.B.H.

Effective date: 20100630

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100106

Ref country code: MC

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

Effective date: 20100630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20100617

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110228

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

Effective date: 20100106

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: 20100630

Ref country code: LI

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

Effective date: 20100630

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 NON-PAYMENT OF DUE FEES

Effective date: 20100630

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: 20100630

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 NON-PAYMENT OF DUE FEES

Effective date: 20100617

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: 20100617

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50312311

Country of ref document: DE

Effective date: 20120103

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: 20120103

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: 20100617

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: 20100707

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: 20100106