EP3181908B1 - Pompe centrifuge à plusierurs étages avec tirants d'ancrage en tôle - Google Patents

Pompe centrifuge à plusierurs étages avec tirants d'ancrage en tôle Download PDF

Info

Publication number
EP3181908B1
EP3181908B1 EP15200756.3A EP15200756A EP3181908B1 EP 3181908 B1 EP3181908 B1 EP 3181908B1 EP 15200756 A EP15200756 A EP 15200756A EP 3181908 B1 EP3181908 B1 EP 3181908B1
Authority
EP
European Patent Office
Prior art keywords
centrifugal pump
recesses
tie
foot part
tie rods
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
EP15200756.3A
Other languages
German (de)
English (en)
Other versions
EP3181908A1 (fr
Inventor
Steen Mikkelsen
Niels Due Jensen
Brian Lundsted Poulsen
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.)
Grundfos Holdings AS
Original Assignee
Grundfos Holdings AS
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 Grundfos Holdings AS filed Critical Grundfos Holdings AS
Priority to EP15200756.3A priority Critical patent/EP3181908B1/fr
Priority to PCT/EP2016/080043 priority patent/WO2017102491A1/fr
Priority to US16/060,215 priority patent/US10808703B2/en
Priority to RU2018123322A priority patent/RU2703428C1/ru
Priority to DE202016008104.8U priority patent/DE202016008104U1/de
Priority to CN201680074525.7A priority patent/CN108368851B/zh
Publication of EP3181908A1 publication Critical patent/EP3181908A1/fr
Application granted granted Critical
Publication of EP3181908B1 publication Critical patent/EP3181908B1/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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F04D1/063—Multi-stage pumps of the vertically split casing type
    • F04D1/066—Multi-stage pumps of the vertically split casing type the casing consisting of a plurality of annuli bolted together
    • 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
    • F04D1/06—Multi-stage pumps
    • 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
    • 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
    • F04D29/4293—Details of fluid inlet or outlet
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/50—Building or constructing in particular ways
    • F05D2230/54—Building or constructing in particular ways by sheet metal manufacturing

Definitions

  • the invention relates to a multi-stage centrifugal pump with the features specified in the preamble of claim 1.
  • Centrifugal pumps of this type are known in numerous design variants; in this connection, reference is made in particular to the Grundfos CR series, which is available on the market in different sizes. All these pumps have in common that they have a foot part with which they stand on the ground or a foundation provided for this purpose during operation, and a head part which is designed as a motor chair or is provided for receiving a motor chair, via which a drive motor for the Pump can be connected. These are pumps in which the actual centrifugal pump and the drive motor essentially form independent units which are coupled to one another in the area of the motor chair. Standard motors are typically used, which are not specially designed for these pumps, but which can also be used in other drive applications. This centrifugal pump must therefore be designed so that it can absorb the drive motor attached to the head section and its reaction forces. The centrifugal pumps are designed in series, the head and foot parts of which correspond, but which differ in the number of pump stages arranged between them.
  • the pump stages are integrated between the head part and the foot part, the head part and the foot part are connected via tie rods that give the pump mechanical cohesion.
  • tie rods that give the pump mechanical cohesion.
  • four tie rods symmetrically distributed around the circumference of the pump stages are generally provided, which are formed from round material and are provided with an external thread at the ends.
  • These tie rods are either fixed in threaded holes in the foot part or fastened there by means of nuts, the free ends of the tie rods being guided through corresponding bores in the head part on the head part side and being fixed there via nuts.
  • the pump stages incorporated between the head part and foot part are thus clamped to one another via these tie rods, as a result of which the entire structure maintains its stability.
  • the US 2008/0019831 A1 shows such a multi-stage centrifugal pump, which is designed as an inline pump.
  • a disadvantage of multi-stage centrifugal pumps of this type is that the tie rods are quite complex to assemble. So they must first be screwed into the foot section, after which the connection to the head section is made and finally the nuts on the head section are put on and tightened with the required torque.
  • these helical tie rods are expensive and heavy. They protrude significantly from the side of the cylindrical pump body, so that they always form contact surfaces on which one can easily get caught with a tool or other objects. Due to the lateral protrusion over the pump body, bending moments on the head part and foot part are also effective, which can lead to undesired deformations.
  • the invention has for its object to improve a multi-stage centrifugal pump of the type mentioned with regard to the tie rods and their attachment.
  • the multi-stage centrifugal pump according to the invention is designed as an inline pump and has a foot part with a suction and a pressure connection and a head part, between which pump stages are integrated.
  • the pump stages are surrounded by a ring channel through which the last pump stage is connected to the pressure connection.
  • the head part and foot part are connected to each other via tie rods, which are fixed at one end to the head part and with the other end to the foot part, the tie rods being threaded at one end with which they are braced on the head part or on the foot part.
  • the tie rods are formed at least in sections from sheet metal and each have at the other end, i.e. at the non-threaded end, at least one recess in the sheet metal, with which they are positively fixed at least in the pulling direction on the foot part or on the head part, and into which a projection provided on the foot or head part engages.
  • centrifugal pumps of the type in question have a foot part with which they stand on the floor or on a foundation, that is to say a component which carries the entire pump and the motor connected to it.
  • the tie rods are formed at least in sections from sheet metal, preferably all of sheet metal except for the threaded part at one end.
  • the tie rods should go as far as possible be made of sheet metal, that is, the threaded part should be as short as necessary.
  • the sheet metal part should therefore bridge the entire area between the head part and foot part or end immediately in front of the head or foot part, where the threaded part then joins.
  • Such tie rods formed from sheet metal can be produced inexpensively, for example by laser cutting or punching, which is particularly advantageous in the case of large quantities.
  • connection is made positively on one side by means of the at least one recess, either on the foot part or on the head part, preferably on the foot part, so that the thread is arranged on the head part side and screwed there with a nut.
  • the extensive design of the tie rods made of sheet metal has the further advantage that they can be matched to the outer contour of the pump stages, as a result of which the radial size in the area of the pump stages can be significantly reduced. As a result, the moment loads on the head and foot sections known in prior art designs can also be significantly reduced.
  • the design of the tie rods made of sheet metal also enables an aesthetically significantly more appealing design than was the case according to the prior art, in which the clamping bolts protrude radially like foreign bodies.
  • the dimensioning of the tie rods depends on the forces to be absorbed and the tensile strength of the material used. However, they should advantageously be dimensioned at least in such a way that the tie rods are inherently stable. This can also be supported, for example, in that the tie rods have a curvature which is adapted to the curvature of the pump body, that is to say they are bent about their longitudinal axis. Such a curvature makes it possible to apply the tie rods to the pump body formed by the pump stages in the region of the pumps with virtually no spacing, so that, which is particularly advantageous, they have the same temperature level as the pump body. Centrifugal pumps with tie rods that are at least partially made of sheet metal are, for example, from the EP2143959 A1 or the JP2001041187 A known.
  • the end formed from sheet metal is fixed by means of at least one recess into which a projection provided on the foot or head part engages. If the recess lies completely within the sheet, a pin-like or hook-like projection is to be provided on the foot or head part side in order to obtain a positive connection in the pulling direction.
  • a pin can, for example, lie within an anchor recess of the foot part or can also be molded onto the foot part at a suitable location.
  • the recesses are designated as anchor recesses, which are provided and determined for positive locking, that is, for anchoring the end of a tie rod formed from sheet metal.
  • the recesses in the end of a tie rod formed from sheet metal are referred to below only as recesses. It can either be recesses in the form of holes in the sheet or lateral recesses.
  • the recesses in the head part in which the ends of the tie rods on the head part are fixed are referred to below as hole recesses. It can be holes, bores or laterally open recesses.
  • the tie rods each have a recess on at least one long side. Then a form-fitting fixation in the head or foot part can take place by designing a corresponding anchor recess which has an area in which the tie rod can be inserted and a further area in which a counter part engages in this recess. This state can be achieved, for example, by swiveling, shifting or rotating.
  • lateral recesses are provided on both longitudinal sides of the tie rod, preferably on same height, then a particularly even application of force into the tie rod takes place.
  • the threaded end of the tie rod from sheet metal, in which further material is applied to the sheet metal base body either by folding or by application, into which a thread is then cut or embossed.
  • the tie rods are provided with a threaded bolt at their threaded end, which is connected to the part of the tie rod formed from sheet metal by welding.
  • hole recesses are provided according to the invention, through which the threaded ends of the tie rods are guided and fixed and braced there by means of a nut.
  • This attachment is advantageously carried out on the headboard side, the headboard advantageously being designed as a motor chair.
  • the hole recesses can be open on the side, so that it is not necessary to insert the threaded ends of the tie rods through them, but that they can also be inserted from the side, for example. This facilitates automated assembly in particular.
  • the part of the pump clamped between the foot part and head part advantageously has a cylindrical section, for example formed by a tube, which forms the return channel from the pressure side back to the foot part.
  • a cylindrical section for example formed by a tube, which forms the return channel from the pressure side back to the foot part.
  • the parts of the tie rods formed from sheet metal are adapted to the curvature of this cylindrical section, that is to say to theirs Deform longitudinal axis. Such a deformation makes it possible to apply the tie rods almost flush to this cylindrical section, if this is desired.
  • the tie rods can also be arranged at a distance, and this arrangement can also result in a technically and optically advantageous design.
  • anchor recesses are preferably provided in the foot part, each of which has an insertion part and a holding part.
  • the insertion part is designed in such a way that an end of a tie rod formed from sheet metal can be passed through this insertion part until the recesses on the long sides lie within these anchor recesses. Then by moving or pivoting a tie rod with its sheet metal part end can be transferred from the insertion part of an anchor recess into the holding part, in which the tie rod is positively held at least in the direction of its longitudinal axis and in which the material surrounding the anchor recesses laterally into the recesses of the sheet metal part end of the tie rod engages.
  • the transfer from the insertion part into the holding part can advantageously be carried out by radial displacement or in a simple manner by pivoting, as will be described in detail below.
  • the anchor recesses are advantageously designed such that the holding parts connect radially on the outside to the insertion parts, so that the cylindrical section of the component surrounding the pump stages positively secures the ends of the tie rods, which lie in the neck parts of the anchor recesses, so that they no longer fit in can reach the area of the insertion parts in which they can be pushed through for assembly or disassembly purposes.
  • anchor recesses are arranged in a circle around the longitudinal central axis of the pump, preferably in the foot part, and their insertion parts are covered by a component of the pump, for example a pump stage or the circumferential jacket, for the positive fixing of the tie rod located in the holding part.
  • the tie rods are advantageously arranged symmetrically around the longitudinal center and axis of rotation of the pump; three, four or more tie rods can be provided.
  • the anchor recesses are arranged in an axial wall, preferably of the foot part.
  • the actual foot part can consist of a plate made, for example, of cast iron and a part adjoining it at the top can also be made of cast iron, that is, as a one-piece component with the plate or, if appropriate, also as a sheet metal construction.
  • the insertion parts of the anchor recesses are arranged in a radial wall and the holding parts of the anchor recesses are preferably arranged in an axial wall of the foot part.
  • Such an arrangement has the advantage that the tie rods can be inserted from the side and can be positively fixed, for example, by pivoting. This results in a very simple and at the same time reliable assembly.
  • the holding parts of the anchor recesses can alternatively also be provided in a corresponding recess or cutout in the radial wall, typically in the circumferential side thereof.
  • Both the head part and the foot part are advantageously designed as a cast metal part, the foot part being designed to set up the pump on a foundation, typically on the floor is and the head part is designed to receive an electric motor driving the pump.
  • the pump is designed as an inline pump and has a suction connection and a pressure connection in the foot part, the pump stages being surrounded by an annular channel through which the last pump stage is connected to the pressure connection in the foot part.
  • the tie rods can either be adjacent or preferably arranged at a short distance.
  • the foot part with its suction and pressure connection can be designed as a cast part, but it is also possible, for example, for only one plate which forms the actual foot part to be made of cast iron and the rest of the foot part of sheet metal.
  • the tie rods are made of sheet metal except for the threaded end part, that is to say the sheet metal part of the tie rod extends from the foot part to the head part or to just before it.
  • the tie rods rest almost flush on the pump body, which is otherwise cylindrical there.
  • the tie rods are made in one piece and, in particular, are also inherently stable, since then they can be incorporated relatively easily in largely automated assembly processes.
  • the foot part advantageously has a pot-shaped structure, the anchor recesses then advantageously being arranged where the pot bottom merges into the pot wall.
  • the insertion part of the anchor recesses in the wall and the holding part in the floor can then be provided, for example.
  • the anchor recess then extends in both areas. If the foot part is liquid-carrying and for this reason the inside of the pot wall cannot be provided with anchor recesses, the pot base can protrude radially beyond the pot wall in order to accordingly arrange anchor recesses on the outside.
  • centrifugal pump 1 is a multi-stage centrifugal pump of the inline type (see also Fig. 11 ). It has a foot part 2, which is provided with its underside for installation on the floor or a corresponding foundation.
  • the foot part 2 essentially has the shape of a rectangular plate, which has four fastening recesses 3 at its corners, with which the foot part 2 can be screw-fastened to the foundation, in which corresponding cap screws are passed through these recesses 3 and anchored in the foundation.
  • the foot part 2 has a circular receptacle 4, which is provided for receiving a component having a suction connection 5 and a pressure connection 6, which receives pump stages which adjoin it at the top and are closed at the top by a cover part 7.
  • a cylindrical tube section 8 is arranged between the cover part 7 and the component receiving the suction and pressure connection 5, 6, which surrounds the pump stages at a distance and forms an annular channel via which the liquid emerging at the end of the last pump stage is led to the pressure connection 6.
  • the pump is closed at the top by a head part 9, which at the same time forms a motor chair for an electric motor which can be flanged there.
  • tie rods 11 are made of sheet metal and have an elongated narrow shape, they are bent about their longitudinal axis, corresponding to the curvature of the pipe section 8, so that they look like this Fig. 1 it can be seen to continue this outwards.
  • the tie rods 11 have a lower end 12, which is also made of sheet metal, and an upper end 13, which is formed by an externally threaded bolt 14, which is welded to the upper end of the sheet metal part of the tie rod 11 is.
  • the sheet metal section 15 is provided with two recesses 16 on its long side, which are arranged at the same height, the underside of which is recessed inward by 90 ° and the upper side of which runs obliquely to the outer edge of the sheet metal section 15.
  • four anchor recesses 18 are provided in the base part 2, specifically at the edge of the receptacle 4, in the axial wall 17, the contour of which is best shown in Fig. 4 is recognizable.
  • Each anchor recess has an insertion part 19 and a holding part 20 which are matched to the lower end 12 of a tie rod.
  • the insertion part 19 is dimensioned such that it corresponds to the cross-sectional area of the sheet metal section 15, that is to say that a tie rod 11 can be inserted and passed through the insertion part 19 from above into the insertion part 19.
  • This lower end 12 is inserted so far into the insertion part 19 until the recesses 16 are arranged at the level of the anchor recess 18, then the tie rod 11 is displaced radially outward in the anchor recess 18, so that the comparatively narrow web part 21, which is between the Recesses 16 is formed in the sheet metal section 15, into which the holding part 20 of the anchor recess 18 passes, as a result of which the tie rod 11 is positively fixed in the foot part 2 in the pulling direction 22.
  • the holding part 20 of the armature recess 18, which is arranged in the axial wall 17 of the receptacle 4, is continued in the radial wall 23 of the receptacle 4 in accordance with the obliquely upwardly extending recesses 16, so that the tie rod in this position outside the actual receptacle 4, namely is arranged radially offset.
  • the receptacle 4 which is provided in terms of its dimensions for receiving the component receiving the suction and pressure connection 5, 6, can still receive this component after incorporating the tie rods 11, but with the effect that by incorporating the component into the receptacle 4 the insertion parts 9 of the anchor recesses 18 are closed and thus the lower ends 12 of the tie rods 11 are positively fixed within the foot part 2.
  • the remaining pump parts in particular the pump stages, the pipe section 8 and the cover part 7, can be incorporated, after which the head part 9 is placed on from above.
  • the upper ends 13, that is to say the threaded bolts 14, pass through hole recesses 24 in the head part 9, which are arranged in alignment with the anchor recesses 8 arranged in the foot part 2, so that after the head part is put on, the bolts 14 projecting through the hole recesses 24 underneath Intermediate washers provided with nuts 25 and braced.
  • the embodiment variant shown are incorporated into the base part 2a of the suction connection 5 and the pressure connection 6.
  • the pipe section 8 which delimits the ring channel to the outside, extends between the foot part 2a and the head part 9a.
  • the structure in detail results in particular from Fig. 7 .
  • the head and foot parts 9a, 2a which are made of cast iron, are not lined with stainless steel sheet, as in the previously described embodiment, but form parts of the flow channels.
  • the basic structure is similar, but the receptacle 4a is closed, that is to say without a recess on the inside. This is necessary to ensure the tightness with respect to the pipe section 8.
  • the anchor recesses 18a surrounding the receptacle 4a are provided here, which are arranged on the outside of the receptacle 4a and which have a radial insertion part 19a and an axial holding part 20a.
  • the radial insertion part 19a of an armature recess 18a lies in a radial wall 23a, which surrounds the receptacle 4a at a distance and receives the pressure and suction connections 5, 6. At its upper end, this radial wall 23a merges into an axial wall 17a, which, however, is not part of the receptacle 4a, but rather forms an outer shoulder.
  • the tie rods 11 themselves are designed in exactly the same way as in the embodiment described above. You will be here, however, as especially in Fig. 6 can be seen, inserted obliquely from the outside and above through the insertion part 19a, i.e. the armature recess part in the radial wall 23a, until the recesses 16 or the web 21 of the tie rods 11 are arranged at the level of the holding parts 20a of the armature recesses 18a.
  • the tie rod 11 is pivoted obliquely upwards until it lies parallel to the pipe section 8 at a distance and the threaded bolt 14 engages in the laterally open hole recess 24a, opposite the upper end of which it is incorporated as in the previous embodiment Washer screwed to a nut 25 and thus fixed.
  • the narrow sheet metal section 21 between the recesses 16 reaches the area of the holding part 20a of the anchor recess 18a in the axial wall 17a, as a result of which the parts projecting from it Sheet metal section 15 enter into a positive connection in the pulling direction 22 and in the opposite direction.
  • the tie rod 11 is held in this position by the threaded bolt 14 fixed by means of the nut 25, with which the upper end 14 of the tie rod 11 is fastened to the head part 9a.
  • the holding part 20a of an armature recess 18a is provided in the above-described embodiment in the axial wall 17a, but this part of the armature recess 18a can also be provided in the radial wall 23a if it is dimensioned accordingly and one which is matched to the lower end 12 of the tie rod 11 , ie has a corresponding recess or recess in the shape.
  • the main advantage of the arrangement described above is that the pump can be built almost completely from the foot part 2a to the head part 9a, after which the tie rods 11 are finally inserted into the anchor recesses 18a and pivotally secured there by pivoting. The corresponding tension between the foot part 2a and the head part 9a is then applied by tightening the nut 25 with the intended torque.
  • This design is therefore particularly advantageous for an at least partially automated assembly.
  • a drive motor 26 in the form of an electric motor is attached to the head part 9a, which is designed as a motor chair at the upper end, the shaft 27 of which is connected in a rotationally fixed manner to a shaft 28 of the centrifugal pump 1 by a coupling.
  • centrifugal wheels 29 are arranged in a rotationally fixed manner, which together with guide devices 30 fixed to the housing form the pump stages.
  • the liquid is pumped through the (in Fig. 11 (not visible) Suction port 5 to the suction mouth of the lowest pump stage and from there it goes from pump stage to pump stage with pressure increase upwards, where it emerges within the head part 9a and is led down again via an annular channel 31 to the foot part and there to the pressure connection 6.

Landscapes

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

Claims (16)

  1. Pompe centrifuge à plusieurs étages qui est configurée comme pompe en ligne, comprenant une partie de pied (2) qui comporte un raccord d'aspiration et un raccord de refoulement (5, 6), une partie de tête (9) et des étages de pompe intégrés entre celles-ci et qui sont entourés d'un canal annulaire par lequel le dernier étage de pompe est raccordé au raccord de refoulement (6), la partie de tête (9) et la partie de pied (2) étant reliées par des tirants d'ancrage (11) qui sont disposés à la paroi extérieure de canal du canal annulaire et qui sont fixés par une extrémité (13) respective à la partie de tête (9) et par l'autre extrémité (12) à la partie de pied (2), les tirants d'ancrage (11) étant pourvus chacun, à une extrémité (13), d'un filetage par lequel ils sont serrés à la partie de tête (9) ou à la partie de pied (2), caractérisée en ce que les tirants d'ancrage (11) sont formés, au moins par zones, en tôle, qu'ils comportent chacun, à l'autre extrémité (12), au moins un évidement (16) dans la tôle par lequel ils sont fixés, au moins dans la direction de traction (22), par complémentarité de forme, sur la partie de pied (2) ou la partie de tête (9), et dans lesquels s'engage une saillie respective prévue sur la partie de pied ou de tête.
  2. Pompe centrifuge selon la revendication 1, caractérisée en ce que les tirants d'ancrage (11) comportent chacun un évidement (16) à au moins un côté longitudinal.
  3. Pompe centrifuge selon la revendication 1 ou 2, caractérisée en ce que les tirants d'ancrage (11) comportent chacun des évidements (16) aux deux côtés longitudinaux, de préférence au même niveau.
  4. Pompe centrifuge selon l'une des revendications précédentes, caractérisée en ce que les tirants d'ancrage (11) comportent, à leur extrémité (13) pourvue d'un filetage, une tige filetée (14) qui est reliée par soudure à la partie (15) formée en tôle du tirant d'ancrage (11).
  5. Pompe centrifuge selon l'une des revendications précédentes, caractérisée en ce que, dans la partie de pied (2) ou dans la partie de tête (9) et de préférence dans la partie de tête (9), sont prévus des évidements perforés (24) par lesquels les extrémités (13) des tirants d'ancrage (11) munies d'un filetage sont passées et fixées chacune au moyen d'un écrou (25) et tendues, la partie de tête (9) étant formée de préférence en siège de moteur.
  6. Pompe centrifuge selon l'une des revendications précédentes, caractérisée en ce que la pompe (1) comprend une section cylindrique entre la partie de pied (2) et la partie de tête (9) et que les parties (15) du tirant d'ancrage (11) formé en tôle présentent une courbure adaptée à la courbure de ce segment cylindrique.
  7. Pompe centrifuge selon l'une des revendications précédentes, caractérisée en ce que, dans la partie de pied (2) ou la partie de tête (9) et de préférence dans la partie de pied (2), sont prévus des évidements d'ancrage (18), qui présentent une partie d'insertion (19) et une partie de maintien (20), la partie d'insertion étant formée de façon telle qu'une extrémité (12) d'un tirant d'ancrage (11) puisse être passée et la partie de maintien (20) étant formée de façon telle que l'extrémité (12) du tirant d'ancrage (11) puisse être déplacée, par un déplacement par coulissement de préférence radial et/ou un balayage horizontal à hauteur de son au moins un évidement (16), dans la partie de maintien (20) et le tirant d'ancrage (11) étant tenu, au moins dans la direction (22) de son axe longitudinal, par complémentarité de forme.
  8. Pompe centrifuge selon la revendication 7, caractérisée en ce que les évidements d'ancrage (18) sont disposés en cercle autour de l'axe médian longitudinal (10) de la pompe (1), de préférence à la partie de pied (2), et que leurs parties d'insertion (19) sont couvertes par un composant de la pompe (1) pour la fixation des tirants d'ancrage (11) par complémentarité de forme.
  9. Pompe centrifuge selon la revendication 8, caractérisée en ce que les parties de maintien (20) sont juxtaposées radialement extérieur aux parties d'insertion (19) des évidements d'ancrage (18) et qu'une section cylindrique du composant immobilise les extrémités (12) des tirants d'ancrage (11) dans les évidements d'ancrage (18), par complémentarité de forme.
  10. Pompe centrifuge selon l'une des revendications précédentes 7 à 9, caractérisée en ce que les évidements d'ancrage (18) sont disposés dans une paroi (17) axiale de préférence de la partie de pied (2).
  11. Pompe centrifuge selon l'une des revendications précédentes 7 à 10, caractérisée en ce que les parties d'insertion (19a) des évidements d'ancrage (18a) sont disposés dans une paroi (23a) radiale et que les parties de maintien (20a) des évidements d'ancrage (18a) sont disposées dans une paroi (23a) axiale ou radiale de préférence de la partie de pied (2a).
  12. Pompe centrifuge selon l'une des revendications précédentes, caractérisée en ce que la partie de tête (9) et /ou la partie de pied (2) est formé en fonte métallique, la partie de pied (2) étant formé pour l'installation de la pompe (1) sur une fondation, en particulier un sol, et la partie de tête (9) étant formée pour la réception d'un moteur électrique entraînant la pompe (1).
  13. Pompe centrifuge selon l'une des revendications précédentes, caractérisée en ce que les tirants d'ancrage (11) sont disposés à distance de la paroi de canal extérieure du canal de ceinture.
  14. Pompe centrifuge selon l'une des revendications précédentes, caractérisée en ce que la partie (15) formée en tôle d'un tirant d'ancrage (11) s'étend de la partie de pied (2) à la partie de tête (9) ou tout juste avant.
  15. Pompe centrifuge selon l'une des revendications précédentes 7 à 14, caractérisée en ce que la partie de pied (2, 2a) présente une structure en forme de pot et que les évidements d'ancrage (18, 18a) sont disposés dans une zone dans laquelle le fond du pot passe dans la paroi du pot.
  16. Pompe centrifuge selon une de revendications précédentes, caractérisée en ce que les tirants d'ancrage (11) sont formés d'une seule pièce et de préférence stable par eux-mêmes.
EP15200756.3A 2015-12-17 2015-12-17 Pompe centrifuge à plusierurs étages avec tirants d'ancrage en tôle Active EP3181908B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP15200756.3A EP3181908B1 (fr) 2015-12-17 2015-12-17 Pompe centrifuge à plusierurs étages avec tirants d'ancrage en tôle
PCT/EP2016/080043 WO2017102491A1 (fr) 2015-12-17 2016-12-07 Pompe centrifuge multi-étagée comprenant des tirants d'ancrage constitués de tôle
US16/060,215 US10808703B2 (en) 2015-12-17 2016-12-07 Multi-stage centrifugal pump having tie rods formed from sheet metal
RU2018123322A RU2703428C1 (ru) 2015-12-17 2016-12-07 Многоступенчатый центробежный насос, имеющий стяжные анкеры, выполненные из листового металла
DE202016008104.8U DE202016008104U1 (de) 2015-12-17 2016-12-07 Kreiselpumpe
CN201680074525.7A CN108368851B (zh) 2015-12-17 2016-12-07 具有由片材构成的拉杆的多级离心泵

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15200756.3A EP3181908B1 (fr) 2015-12-17 2015-12-17 Pompe centrifuge à plusierurs étages avec tirants d'ancrage en tôle

Publications (2)

Publication Number Publication Date
EP3181908A1 EP3181908A1 (fr) 2017-06-21
EP3181908B1 true EP3181908B1 (fr) 2020-05-13

Family

ID=54850262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15200756.3A Active EP3181908B1 (fr) 2015-12-17 2015-12-17 Pompe centrifuge à plusierurs étages avec tirants d'ancrage en tôle

Country Status (6)

Country Link
US (1) US10808703B2 (fr)
EP (1) EP3181908B1 (fr)
CN (1) CN108368851B (fr)
DE (1) DE202016008104U1 (fr)
RU (1) RU2703428C1 (fr)
WO (1) WO2017102491A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3434909B1 (fr) * 2017-07-25 2023-09-27 CIRCOR Pumps North America, LLC Carter de pompe comportant une bride de support et une bride d'aspiration intégrales
EP3870859B1 (fr) * 2018-10-25 2023-04-19 Pierburg Pump Technology GmbH Agencement de pompe de véhicule à moteur et agencement de montage pour un agencement de pompe de véhicule à moteur
EP3670919A1 (fr) * 2018-12-20 2020-06-24 Grundfos Holding A/S Ensemble de pompe
USD936176S1 (en) * 2019-08-12 2021-11-16 Logical Concepts, Inc. Submersible pump cage
IT202000004882A1 (it) * 2020-03-09 2021-09-09 Dab Pumps Spa Elettropompa con camicia perfezionata
EP4080058A1 (fr) 2021-04-19 2022-10-26 Grundfos Holding A/S Ensemble pompe centrifuge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080019831A1 (en) * 2004-07-16 2008-01-24 Kenichi Kajiwara Centrifugal Pump

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339105A (en) * 1980-06-16 1982-07-13 Bell Telephone Laboratories, Incorporated Clamp for securing large can-type capacitors to a circuit chassis
DE3410080C1 (de) * 1984-03-20 1985-07-11 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Raumsparendes Verbindungselement
FR2661218B1 (fr) * 1990-04-24 1992-07-31 Salmson Pompes Ensemble de pompe centrifuge verticale.
JP3052199B2 (ja) * 1998-05-11 2000-06-12 株式会社テラルキヨクトウ 遠心多段ポンプ
DE29817337U1 (de) * 1998-09-26 1998-12-17 Grundfos As Kreiselpumpe der Inline-Bauart zum Fördern heißer Flüssigkeiten
JP2001041187A (ja) * 1999-07-30 2001-02-13 Teral Kyokuto Inc 深井戸用水中モータポンプ及びその吐出ケーシング又は逆止弁ケーシング
JP2003172285A (ja) * 2001-11-30 2003-06-20 Kawamoto Pump Mfg Co Ltd 多段ポンプ用ケーシング固定バンドおよびそのケーシング固定バンドの製造方法
JP3953328B2 (ja) * 2002-01-21 2007-08-08 株式会社荏原製作所 羽根車
US7946810B2 (en) * 2006-10-10 2011-05-24 Grundfos Pumps Corporation Multistage pump assembly
US8172523B2 (en) * 2006-10-10 2012-05-08 Grudfos Pumps Corporation Multistage pump assembly having removable cartridge
EP2143959B1 (fr) * 2008-07-10 2018-05-02 Grundfos Management A/S Groupe motopompe et procédé de création modulaire d'un groupe motopompe
ITTO20110446A1 (it) * 2011-05-19 2012-11-20 Cosmogas Srl Scambiatore di calore e procedimento di realizzazione
EP2607703B1 (fr) * 2011-12-22 2014-06-18 Grundfos Holding A/S Pompe centrifuge
ITPD20120284A1 (it) * 2012-10-02 2014-04-03 Dab Pumps Spa Struttura di elettropompa centrifuga perfezionata
CN103846860A (zh) * 2014-03-24 2014-06-11 瓮福（集团）有限责任公司 一种多级泵轴套快速拆卸装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080019831A1 (en) * 2004-07-16 2008-01-24 Kenichi Kajiwara Centrifugal Pump

Also Published As

Publication number Publication date
US10808703B2 (en) 2020-10-20
CN108368851B (zh) 2021-07-13
US20180363659A1 (en) 2018-12-20
WO2017102491A1 (fr) 2017-06-22
CN108368851A (zh) 2018-08-03
EP3181908A1 (fr) 2017-06-21
RU2703428C1 (ru) 2019-10-16
DE202016008104U1 (de) 2017-02-10

Similar Documents

Publication Publication Date Title
EP3181908B1 (fr) Pompe centrifuge à plusierurs étages avec tirants d'ancrage en tôle
EP2818721B1 (fr) Pompe centrifuge
DE102007018025A1 (de) Windenergieanlagenturm
DE1653718B2 (de) Zylindrisches zwischenstueck fuer eine eintauchbare kreiselpumpe
WO2016055211A1 (fr) Rattachement d'entretoises pour construction métallique et construction métallique à rattachement d'entretoises
EP2825791A1 (fr) Pièce pour train épicycloïdal
EP2143955B1 (fr) Pompe de trou de forage
DE102012212600A1 (de) Arretiervorrichtung mit Anschlag für Ankerstab und Verfahren
EP2046612A1 (fr) Dispositif de levage
EP3009680B1 (fr) Pompe centrifuge à plusieurs étages
EP2195480B1 (fr) Lave-linge
DE2259985A1 (de) Anordnung zum loesbaren befestigen einer nabe oder eines rades auf einer welle
EP2221472A2 (fr) Dispositif pour la production d'énergie à partir d'un flux de fluide
EP2775043B1 (fr) Robinetterie
EP3126575B1 (fr) Corniche de pont et ensemble de fixation d'une corniche de pont
WO2016203035A1 (fr) Tour d'éolienne et éolienne
EP2818722B1 (fr) Pompe centrifuge
DE102008046181A1 (de) Antennenhalter für eine Satellitenschüssel
EP1895223A1 (fr) Elément de tuyau pour conduites d'eaux usées et de drainage doté d'une ouverture de contrôle
DE102005046043B4 (de) Befestigungsanordnung einer Messerklinge an einer Mischschnecke eines Futtermischwagens
EP1170509A2 (fr) Connexion d'aspiration ou de refoulement d'une pompe centrifuge
EP2294340B1 (fr) Chauffe-eau
EP3348742B1 (fr) Dispositif destiné à supporter une plaque de façade sur une structure portante
DE29911066U1 (de) Mischschnecke für Vertikal-Futtermischwägen
DE102005049816A1 (de) Kunststoffgehäuse

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

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20171220

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20191127

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAL Information related to payment of fee for publishing/printing deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR3

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

GRAR Information related to intention to grant a patent recorded

Free format text: ORIGINAL CODE: EPIDOSNIGR71

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

INTC Intention to grant announced (deleted)
INTG Intention to grant announced

Effective date: 20200331

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM 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: DE

Ref legal event code: R096

Ref document number: 502015012572

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1270655

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200615

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200513

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

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: 20200513

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: 20200914

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: 20200513

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: 20200814

Ref country code: NO

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: 20200813

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: 20200513

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: 20200913

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: 20200813

Ref country code: RS

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: 20200513

Ref country code: HR

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: 20200513

Ref country code: LV

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: 20200513

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

Ref country code: AL

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: 20200513

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: 20200513

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: 20200513

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: 20200513

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: 20200513

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: 20200513

Ref country code: SM

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: 20200513

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: 20200513

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: 20200513

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015012572

Country of ref document: DE

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

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: 20200513

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: 20200513

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

26N No opposition filed

Effective date: 20210216

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: 20200513

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20200513

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20201231

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 NON-PAYMENT OF DUE FEES

Effective date: 20201217

Ref country code: LU

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

Effective date: 20201217

Ref country code: FR

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

Effective date: 20201231

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: 20201231

Ref country code: LI

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

Effective date: 20201231

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1270655

Country of ref document: AT

Kind code of ref document: T

Effective date: 20201217

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: 20201217

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: 20200513

Ref country code: MT

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: 20200513

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: 20200513

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

Ref country code: MK

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: 20200513

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: 20201231

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502015012572

Country of ref document: DE

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

Ref country code: GB

Payment date: 20231220

Year of fee payment: 9

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

Ref country code: DE

Payment date: 20231214

Year of fee payment: 9