EP3179112B1 - Couvercle de pompe avec trous formés comme filtres inertiels - Google Patents

Couvercle de pompe avec trous formés comme filtres inertiels Download PDF

Info

Publication number
EP3179112B1
EP3179112B1 EP17152843.3A EP17152843A EP3179112B1 EP 3179112 B1 EP3179112 B1 EP 3179112B1 EP 17152843 A EP17152843 A EP 17152843A EP 3179112 B1 EP3179112 B1 EP 3179112B1
Authority
EP
European Patent Office
Prior art keywords
centrifugal wheel
screw
type centrifugal
cover plate
pump
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
EP17152843.3A
Other languages
German (de)
English (en)
Other versions
EP3179112A1 (fr
Inventor
Robles Ciro
Carl STÄHLE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Frideco AG
Original Assignee
Frideco AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Frideco AG filed Critical Frideco AG
Publication of EP3179112A1 publication Critical patent/EP3179112A1/fr
Application granted granted Critical
Publication of EP3179112B1 publication Critical patent/EP3179112B1/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
    • F04D29/40—Casings; Connections of working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/15—Two-dimensional spiral

Definitions

  • the invention relates to a screw centrifugal pump with a cover plate.
  • the document CH 662 864 discloses a screw centrifugal wheel pump, the screw centrifugal wheel being rotatably mounted on an axis of rotation.
  • the screw centrifugal wheel pump has a cavity in the area of the connection between the screw centrifugal wheel and the axis of rotation.
  • This embodiment of a screw centrifugal wheel pump which is very proven per se, has the disadvantage that contaminants can accumulate and accumulate inside the cavity. This results in increased wear and / or increased maintenance.
  • the screw centrifugal wheel pump according to the invention has the advantage that a partial flow is formed during the pumping operation, which flows from the front to the rear of the cover plate and then flows again along a center opening of the cover plate to the front of the cover plate, so that a cleaning flow is formed which is able to Any contaminants located or deposited in the cavity behind the cover plate must at least partially be conveyed back to the front of the cover plate, so that these contaminants can be conveyed away via the main flow of the screw centrifugal wheel pump.
  • the screw centrifugal wheel pump comprises a rotatably mounted screw centrifugal wheel and a cover plate arranged directly next to the screw centrifugal wheel with a central opening, a hub or a drive shaft of the screw centrifugal wheel preferably running through the central opening.
  • a fluid-conducting gap is formed between the center opening and the hub or the drive shaft.
  • the cover plate runs on the side facing the screw centrifugal wheel or on the partial surface facing the screw centrifugal wheel, preferably in accordance with the course of the rear of the screw centrifugal wheel, so that the partial surface preferably runs in the shape of a truncated cone or even, wherein the partial surface could also have a different course shape, for example a curved or polygonal course.
  • a front side of the cover plate comprises in particular a partial surface, the course of which is designed to match the rear side of the screw centrifugal wheel such that a gap of up to 3 mm is formed between the front side of the cover plate and the rear side of the screw centrifugal wheel.
  • the gap preferably has a width in the range from 0.5 mm to 2 mm.
  • the screw centrifugal wheel has a direction of rotation.
  • the partial surface preferably has a spiral-shaped depression, which essentially runs outwards along the partial surface, starting in the region of the central opening.
  • the spiral-shaped depression advantageously runs in the direction of rotation from the inside to the outside.
  • the opening advantageously runs counter to the direction of rotation of the screw centrifugal wheel.
  • An entry surface formed by an entry opening of the opening preferably runs essentially parallel to the axis of rotation and facing away from Direction of rotation.
  • the cover plate particularly preferably consists of a metal sheet.
  • a screw centrifugal wheel pump comprising a pump housing with a pump inflow opening and a housing rear wall arranged opposite the pump inflow opening, comprising a screw centrifugal wheel rotatably arranged within the pump housing with a hub and a blade, and also comprising a rotatable drive shaft which is connected to the screw centrifugal wheel, and also comprises a cover plate which is arranged between the screw centrifugal impeller and the rear wall of the housing, the cover plate having a central opening through which the hub or the drive shaft runs, and an interior space being formed between the cover plate and the rear wall of the housing, the cover plate having a front side oriented towards the pump inflow opening, and wherein the front side comprises a partial surface, the course of which is designed to be adapted to the rear side of the screw centrifugal wheel such that between the front side a gap of up to 3 mm is formed between the cover plate and the rear of the screw centrifugal wheel, a gap being formed between the center opening of the cover plate and
  • a method for self-cleaning a screw centrifugal wheel pump comprising a rotatably mounted screw centrifugal wheel and a cover plate with a central opening arranged to form a gap on the rear side of the screw centrifugal wheel, the cover plate having an opening which is spaced apart from the center opening, a hub or a
  • the drive shaft of the screw centrifugal wheel runs through the center opening, so that a fluid-conducting gap is formed between the center opening and the hub or the drive shaft, the screw centrifugal wheel and the arrangement of the opening being mutually adapted such that the rear side of the screw centrifugal wheel has the opening during the rotation of the Screw centrifugal wheel is not covered or is only covered during a partial angle ⁇ , the screw centrifugal wheel being rotated in the direction of rotation and thereby releasing a fluid ang a main flow is promoted, a partial flow F1 of the fluid flows through the opening to the rear of the cover plate, and this partial flow then flows back over the columns to the
  • a cover plate for a screw centrifugal wheel pump wherein the cover plate has a front side and a rear side, and wherein the cover plate has a center opening in the center thereof, the center opening being configured to pass through an axis of rotation of the screw centrifugal wheel and running in the direction of the axis of rotation, and wherein the cover plate has at least one opening which is spaced from the central opening, and wherein the opening has a fluid-conducting connection between the Forms front and rear of the cover plate, and wherein the opening has an inlet opening towards the front, and wherein the front has a recess, the inlet opening being arranged in this recess, and wherein the inlet opening forms an inlet surface that is substantially parallel to the axis of rotation A runs.
  • a hub of the screw centrifugal wheel comprises a circular base part, that a blade of the screw centrifugal wheel is arranged on the circular base part, and that the circular base part is arranged concentrically to the axis of rotation and has a maximum radius, the maximum radius in this respect the opening is adapted so that the base part does not cover the opening.
  • a hub of the screw centrifugal wheel comprises a crescent-shaped base part, that a blade of the screw centrifugal wheel is arranged on the crescent-shaped base part, and that the crescent-shaped base part has a maximum radius and a minimum radius with respect to the axis of rotation, the crescent-shaped base part with respect to The opening is designed in such a way that the base part does not cover the opening at the minimum radius and that the base part covers the opening when the screw centrifugal wheel rotates through 360 ° during a partial angle.
  • FIG. 1 shows a known from the prior art in the document CH 662 864 disclosed embodiment of a screw centrifugal wheel pump.
  • Figure 1 shows an axial section through the screw centrifugal wheel pump 1 comprising a screw centrifugal wheel 20 with a hub 21 and a blade 25, comprising a drive shaft 33 which is fixedly connected to the hub 21, and comprising a housing rear wall 23 arranged behind the screw centrifugal wheel 20, and one the screw centrifugal wheel 20
  • an outlet opening 36 is provided in the housing rear wall 23 in the vicinity of the drive shaft 33 so that gases can escape which are carried in the conveying medium and which separate out against the impeller rotation center and through the gap on the impeller rear side between impeller hub 21 and housing rear wall 23 in reach the interior 37.
  • the gap between the impeller hub 21 and the rear wall 23 of the housing is designed as a labyrinth, both the hub-side and the rear wall-side labyrinth structure being interrupted by a transverse groove 38, so that a self-cleaning effect is created and no co-conveyed solid parts into the interior 37 and the outlet opening 36 reach.
  • Figure 1a shows a side view of the in Figure 1 Screw centrifugal wheel pump 1 shown with the outer housing 3 broken away.
  • Figure 1b shows a top view Embodiment of a screw centrifugal wheel 20, which is not in the document CH 662864 is disclosed, which, however, for those in the Figures 1 and 1a Screw centrifugal pump 1 shown would be suitable, therefore the Figures 1, 1a and 1b be explained together.
  • the screw centrifugal wheel 20 of the screw centrifugal wheel pump 1 comprises a hub 21 with a sickle-shaped base part 30, to which a blade 25 is connected, an axis 33 penetrating the pressure-side housing wall 23 designed as a truncated cone and being connected to the hub 21.
  • the blade 25 also includes a suction-side flank 39.
  • the crescent-shaped base part 30 extends from the blade outlet tip 35, into which the end edge 26 runs, in a sickle or spiral shape over a relatively large distance around the pump axis to a point 31 at which the Hub 21 has a relatively small radius R2.
  • the hub 21 has the largest radius R1 at the blade outlet tip 35.
  • a relatively large area of the housing wall 23 is exposed over a relatively large arc ⁇ , which is expediently approximately 120 °, between the blade outlet tip 35 and the aforementioned hub location 31.
  • the exposure of the housing wall 23 by reducing the impeller hub radius R1 can go as far as the material-technical parameters allow in order to ensure that the screw centrifugal impeller 20 is sufficiently strong.
  • FIG 2 shows a longitudinal section of an embodiment of a screw centrifugal wheel pump 1 according to the invention.
  • the screw centrifugal wheel pump 1 comprises a pump housing 3 with inlet opening 3a or pump inflow opening 3a, outlet 3b and housing interior 3c, and further comprises a hub 21, which is connected to a blade 25, which is only shown schematically and in broken lines and thereby forms a vane centrifugal wheel 20, and which is rotatably supported by a drive shaft 33 rotatable about an axis A.
  • the connection between the drive shaft 33 and the hub 21 is shown only schematically.
  • the blade 25 and the hub 21 are preferably, as in Figure 1a and 1b shown, designed as a single, common part or as a vane centrifugal wheel 20.
  • the screw centrifugal wheel pump 1 also includes a conical inner housing 4 with inlet opening 4a and a spacer ring 5.
  • the screw centrifugal wheel pump 1 also includes a housing rear wall 23 with an outlet opening 36 and a seal 6.
  • the outlet opening 36 is used for maintenance purposes and is during operation of the screw centrifugal wheel pump 1 usually closed with a plug from the outside.
  • a main flow F is generated, which leads via the inlet opening 3a to the outlet 3b.
  • the conveyed main stream F comprises a fluid, preferably water and possibly gases such as water vapor, the screw centrifugal wheel pump 1 being used in a preferred use for conveying contaminated water, so that the main stream F can also comprise solids, for example faeces, sand, gravel, textiles, Fibers, plastic parts etc.
  • the screw centrifugal wheel pump 1 also comprises a cover plate 2, which is arranged in the direction of the axis A directly behind the hub 21 or the screw centrifugal wheel 20.
  • the cover plate 2 has a front side 2h and a rear side 2i, the front side 2h comprising a partial surface 2k, the course of which is adapted to the rear side 25a of the screw centrifugal wheel 20 in such a way that between the front side 2h of the cover plate 2 and the rear side 25a of the screw centrifugal wheel 20 Gap 24 of a maximum of up to 3 mm is formed.
  • the gap 24 preferably has a width in the range between 0.5 mm and 2 mm.
  • the gap 24 is designed so narrow, among other things, that solids, for For example, tissues occurring in wastewater, such as women's stockings, cannot penetrate into the gap 24 or can even wrap around the hub.
  • the narrow gap 24 also produces a shear effect on solids located within the gap 24, so that they are mechanically crushed and conveyed to the main stream F.
  • at least one of the surfaces oriented toward the gap 24 is structured, rough or, for example, with teeth that protrude, in order to improve mechanical comminution of solids located in the gap 24.
  • a gap 24 that would be wider than 3 mm, for example 5 mm or wider, would have several disadvantages. On the one hand, due to the wide gap 24, the mechanical comminution of solids would no longer be guaranteed.
  • the front side 2h in the exemplary embodiment shown comprises an essentially frustoconical partial surface 2k, the shape of the rear side of which is adapted to a screw centrifugal wheel 20, the partial surface 2k having a central opening 2g in the center thereof, the central opening 2g running parallel in the direction of the axis A.
  • the hub 21 runs through the central opening 2g, so that a gap 2b extending in the direction of the axis A is formed between the central opening 2g and the hub 21.
  • the hub 21 also has a projection which partially covers the partial surface 2k, so that between the hub 21 and the partial surface 2k a gap 24 is formed which extends transversely with respect to the axis A in the exemplary embodiment shown.
  • the cover plate 2 has at least one opening 2a, which is arranged at a distance from the central opening 2g, the opening 2a forming a fluid-conducting connection between the front 2h and the rear 2i of the cover plate 2.
  • the fluid has a higher one in the area of the opening 2a Pressure on than in the area of the central opening 2g, whereby a partial flow F1 is generated in that a part of the main flow F flows as partial flow F1 through the opening 2a to the rear 2i of the cover plate 2 into the interior 37, and then via the gap 2b and the gap 24 flows back into the main stream F.
  • This partial flow F1 has the effect that contaminations which are located in the interior 37 are conveyed out of this and are fed to the skin stream F.
  • the screw centrifugal wheel 20 and the arrangement of the opening 2a are mutually adapted such that the rear side 25a of the screw centrifugal wheel 20 does not cover the opening 2a or only covers a partial angle ⁇ when the screw centrifugal wheel 20 rotates through 360 °.
  • the screw centrifugal wheel 20 could be as in FIGS Figures 12 and 13 be designed shown.
  • Figure 12 shows a pump housing 3 in which a cover plate 2 and a screw centrifugal wheel 20 are arranged.
  • the hub 21 is connected to a circular base part 30, the blade 25 being connected to the base part 30 via its end edge 28.
  • the screw centrifugal wheel 20 comprises an end edge 26, a pressure-side blade flank 27, a suction-side flank 39 and a blade outlet tip 35.
  • Figure 13 shows the screw centrifugal wheel 20 in a top view, the base part 30 being circular and having a maximum radius R1 with respect to the axis A.
  • Figure 13 shows an example of a possible arrangement of an opening or an opening 2a with respect to the screw centrifugal wheel 20.
  • the opening 2a is not covered by the screw centrifugal wheel 20 or by the rear side 25a of the screw centrifugal wheel 20, so that the opening 2a is always open.
  • We are in the area of the opening 2a advantageously generates a flow in the direction of rotation R of the screw centrifugal wheel 20 in order to make it more difficult or to prevent the entry of solid contaminants into the opening 2a.
  • a fluid-conducting connection is formed between the front 2h and the interior 37 via the opening 2a in order to generate a fluid flow F1 which flows into the interior 37 via the opening 2a and flows out of the interior 37 again via the gap 2b.
  • the screw centrifugal wheel 20 could be as in FIGS Figures 1a and 1b be designed shown.
  • the hub 21 of the screw centrifugal wheel 20 comprises a sickle-shaped base part 30, the blade 25 being arranged on the sickle-shaped base part 30 and the sickle-shaped base part 30 having a maximum radius R1 and a minimum radius R2 with respect to the axis of rotation A.
  • the crescent-shaped base part 30 is configured with respect to the opening 2a such that the rear side 25a of the screw centrifugal wheel 20 does not cover the opening 2a at the minimum radius R2, the rear side 25a of the screw centrifugal wheel 20 covering the opening 2a when the screw centrifugal wheel 20 rotates through 360 ° of a partial angle ⁇ covered.
  • the opening 2a is thus briefly covered during each rotation of the screw centrifugal wheel 20.
  • This embodiment has the advantage that a flow in the direction of rotation R of the screw centrifugal wheel 20 is advantageously generated in the area of the opening 2a in order to make it more difficult or to prevent solid impurities from entering the opening 2a.
  • a further advantage can be seen in the fact that solid impurities that accumulate at the inlet opening of the opening 2a are mechanically removed by the hub 21, 30 moving over the opening 2a if the impurities protrude beyond the front side 2h.
  • the drive shaft 33 could also be advanced further, so that the gap 2b is formed at least partially or also exclusively between the cover plate 2 and the drive shaft 33.
  • the cover plate 2 has at least one opening 2a and preferably at least two openings 2a.
  • the openings 2a in the partial surface 2k are advantageously arranged symmetrically with respect to the axis A.
  • the openings 2a can be designed in a variety of ways. In the Figure 2 Opening 2a shown below is in Figure 3 shown enlarged.
  • a flow F2 flows at the front 2h of the cover plate 2.
  • the opening 2 comprises an entry opening 21, the cross section of which forms an entry surface 2m.
  • the partial flow F1 flows through the opening 2a to the rear 2i of the cover plate 2.
  • the partial flow F1 is deflected into the opening 2a as it flows in, which has the advantage that it is difficult for solids in the flow F2 to flow into the opening 2a.
  • the partial flow F1 is thereby at least partially cleaned of solids, because the solids remain at least partially in the flow F2 and are carried away by it.
  • the cover plate 2 could, similar to that in Figure 1a back wall shown, have a cone angle ⁇ in the range between 5 ° and 70 °.
  • FIG. 4 shows a further embodiment of an opening 2a. Unlike the one in Figure 3 The embodiment shown is the one in Figure 4 The opening 2a shown is arranged so that the partial flow F1 is deflected with respect to the flow F2 occurring at the front 2h of the cover plate 2 such that it undergoes a partial flow reversal.
  • the opening 2a runs as in FIG Figure 4 shown at least partially opposite to the direction of rotation R of the screw centrifugal wheel 20
  • the opening 2a running through has the advantage that solids can reach the rear side 2i of the cover plate 2 less well through the opening 2a.
  • Opening 2a shown above is in Figure 5 shown enlarged.
  • a recess 2c is arranged on the front side 2h of the cover plate 2, which opens into the opening 2a, the opening 2a forming an inlet opening 21 with an entry surface 2m, so that the inlet opening 21 is arranged in the recess 2c.
  • the entry opening 21 or the entry surface 2m can be arranged in a wide variety of ways, but advantageously as in FIG Figure 5 represented in such a way that the partial flow F1 is deflected and, with respect to the flow F2 occurring at the front 2h of the cover plate 2, is at least partially reversed.
  • the inlet opening 21 arranged in this way has the advantage that solids can reach the rear side 2i of the cover plate 2 less well through the opening 2a.
  • the entry surface 2 m is arranged such that it runs parallel or essentially parallel to the axis A. As in Figure 5 the entry surface 2m is preferably arranged facing away from the direction of rotation R. In Figure 5 is not the axis A per se, but the course direction of the axis A is shown. As in Figure 5 shown, the entry surface 2m is arranged in a further advantageous embodiment in such a way that it extends perpendicularly or substantially perpendicularly to the direction of rotation R of the drive shaft 33, the entry surface 2m being arranged facing away from the direction of rotation R.
  • FIGS 6, 7 and 8th show an embodiment of a cover plate 2 in plan view, in perspective view and in a section along the section line BB.
  • the recess 2c as in the Figures 6 and 7 represented, at least partially formed by a substantially perpendicular or perpendicular to the axis A bore.
  • Figure 6 shows the course of the axis A and the preferred direction of rotation R. Aus Figure 6 it can thus be seen that the entrance surface 2m runs parallel to the axis A and perpendicular to the direction of rotation R.
  • Figure 8 shows in section the cover plate 2 with front 2h, back 2i and center opening 2g.
  • the openings 2a are arranged in the frustoconical or substantially frustoconical partial surface 2k, the openings 2a being always spaced apart from the central opening 2g.
  • the openings 2a could also, as in Figure 3 shown, run perpendicular or substantially perpendicular with respect to the partial surface 2k, or as in Figure 4 shown, extend transversely with respect to the partial surface 2k.
  • Screw centrifugal wheel 20 shown could, for example, the in Figure 6 with 2k designated partial area of the front 2h are covered, with the Figure 1a and 1b described way.
  • Screw centrifugal wheel 20 shown could, for example, the in Figure 6 with 2k2 designated partial area of the front 2h are permanently covered.
  • the cover plate 2 as in the Figures 6 to 8 shown, a recess extending in the circumferential direction, in particular a spiral recess 2d, which advantageously extends outwards in the region of the central opening 2g starting along the partial surface 2h.
  • the recess 2d advantageously runs as in FIG Figure 6 shown in the direction of rotation R in a spiral from the inside to the outside.
  • the hub 21 rotating over the partial surface 2k in the direction of rotation R or the screw centrifugal wheel 20 rotating in the direction of rotation R also helps the dirt located in the recess 2d or on the partial surface 2k to move in the direction of rotation R and to convey it towards the outside with respect to the partial surface 2k until the contamination reaches the skin stream F, and is captured and carried away by it.
  • the cover plate 2 can, as in the Figures 7 and 8th shown, also have a recess 2f running along the edge region, which is provided in particular for receiving an O-ring and thus for sealing.
  • Figure 9 shows in a section a further embodiment of a cover plate 2 which, in contrast to that in Figure 8 shown section, however, has a flat partial surface 2k or 2k2. Otherwise, the cover plate 2 is configured similarly to that in FIG Figure 8 illustrated embodiment, by the cover plate 2 according to Figure 9 also has a recess 2c which extends into an opening 2a flows out. Insofar as the spiral-shaped depression 2d is disregarded, the Figure 6 a top view of the in Figure 9 illustrated cover plate 2. The in Figure 9 However, the cover plate 2 shown could also have a spiral-shaped recess 2d, so that a top view of this embodiment as in FIG Figure 6 would look represented.
  • Cover plate 2 shown also has a central opening 2g and a front 2h and a back 2i.
  • the front side 2h or the partial surface 2k can run in a variety of ways, for example curved, as in FIG Figure 10 represented schematically in a section, or angular, as in Figure 1 1 represented schematically in a section.
  • the partial surface is as in Figure 8 shown, frustoconical.
  • the cover plate 2 is designed as a casting, the recess 2c and advantageously also the opening 2a or the inlet opening 21 already forming part of the still unprocessed casting. To complete the cover plate 2, it is then essentially still necessary to machine the front 2h, in particular by machining.
  • a cover plate 2 made from such a cast piece has the advantage that there are no or only very small additional costs in the production, since the machining of the cover plate 2 is necessary anyway.
  • the in the Figures 6 to 8 Cover plate 2 shown, comprising two recesses 2c with openings 2a, can thus be produced with negligibly small additional costs compared to cover plates 2 without openings 2a.
  • the casting can have a thickness between 2 and 10 mm.
  • the cover plate 2 could also be made from a metal sheet.
  • Screw centrifugal wheel pump 1 has a rotatably mounted screw centrifugal wheel 20 as well as a cover plate 2 arranged directly next to or behind the screw centrifugal wheel 20 with a central opening 2g, a hub 21 of the screw centrifugal wheel 20 or an axis 33 supporting the screw centrifugal wheel 15 running through the central opening 2g, so that between the Center opening 2g and the hub 21 or the axis 33 forms a fluid-conducting gap 2b.
  • a partial flow F1 of the fluid will flow through an opening 2a spaced with respect to the central opening 2g to the rear 2i of the cover plate 2 and this partial flow F1 thereafter via the Flow gap 2b back to the main flow F due to the pressure difference between the opening 2a and the gap 2b.
  • This partial flow F1 promotes any contaminants located in the space behind the cover plate 2 back to the main flow F.
  • the cover plate 2 has a spiral-shaped recess 2d on its front surface 2h on its partial surface 2k, the spiral-shaped recess 2d in the direction of rotation R from the inside runs outwards, so that the partial flow F1 emerging from the gap 2b and the impurities which may be present therein are fed to the main flow F via the spiral-shaped depression 2d.
  • cover plate 2 and the rear wall 23 are always shown as separate parts.
  • the cover plate 2 and the housing rear wall 23 could also be designed in one piece, for example in that they are made from a single part, for example a cast part.
  • a single cast part comprising both the cover plate 2 and the housing rear wall 23 has the advantage that it can be produced inexpensively and that there is no seal between the cover plate 2 and the housing rear wall 23 more is needed. This enables a particularly low-maintenance embodiment.
  • Figure 14 shows a plan view of a further embodiment of the already in Figure 6 Cover plate 2 shown.
  • the opening 2a or the entry surface 2m again runs parallel to the axis A, the opening 2a or the entry surface 2m, in contrast to Figure 6 , with respect to a straight line L extending radially through the axis A, is inclined by an angle ⁇ , the angle ⁇ preferably having a value in the range of + / - 60 degrees.

Landscapes

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

Claims (14)

  1. Pompe à roue centrifugale hélicale (1), comprenant un boîtier de pompe (3) avec une aperture-pompe à admission (3a), comprenant une roue centrifugale hélicale (20) avec un moyeu (21) et/ou un arbre d'entraînement (33), et aussi comprenant une plaque de recouvrement (2), la plaque de recouvrement (2) étant disposée sur un côté (25a) de la roue centrifugale hélicale (20) située vis-à-vis de l'aperture-pompe à admission (3a) et directement derrière la roue centrifugale hélicale (20),
    la plaque de recouvrement (2) comprenant une aperture centrale (2g), par laquelle s'étend le moyeu (21) ou l'arbre d'entraînement (33),
    la plaque de recouvrement (2) comprenant un côté avant (2h) orienté vers l'aperture-pompe à admission (3a) et le côté avant (2h) comprenant une surface partielle (2k), le parcours de laquelle est implémenté adapté au côté arrière (25a) de la roue centrifugale hélicale (20) de telle manière qu'une première fente (24) de maximalement 3 mm est formée entre le côté avant (2h) de la plaque de recouvrement (2) et le côté arrière (25a) de la roue centrifugale hélicale (20),
    une deuxième fente (2b) étant formée entre l'aperture centrale (2g) de la plaque de recouvrement (2) et le moyeu (21) et/ou l'arbre d'entraînement (33),
    la plaque de recouvrement (2) comprenant au moins une percée (2a) disposée espacée de l'aperture centrale (2g),
    la percée (2a) comprenant vers le côté avant (2h) une aperture d'entrée (2l),
    le côté avant (2h) comprenant une enfonçure (2c) et l'aperture d'entrée (2l) étant disposée dans ladite enfonçure (2c),
    caractérisée en ce que l'enfonçure (2c) est formée au moins partiellement par un perçage s'étendant sensiblement perpendiculairement ou perpendiculairement à l'axe rotatif (A).
  2. Pompe à roue centrifugale hélicale (1) selon la revendication 1,
    caractérisée en ce que le boîtier de pompe (3) comporte une paroi arrière de boîtier (23) située vis-à-vis de l'aperture-pompe à admission (3a),
    la plaque de recouvrement (2) étant disposée entre la roue centrifugale hélicale (20) et la paroi arrière de boîtier (23) et
    un espace intérieur (37) étant formé entre la plaque de recouvrement (2) et la paroi arrière de boîtier (23).
  3. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications 1 ou 2,
    caractérisée en ce que la deuxième fente (2b) est raccordée à l'espace intérieur (37) et à la première fente (24) d'une manière conductrice-fluide.
  4. Pompe à roue centrifugale hélicale (1) au moins selon l'une quelconque des revendications 1 ou 2,
    caractérisée en ce que la percée (2a) forme une connexion conductrice-fluide entre le côté avant (2h) et l'espace intérieur (37) pour générer un flux de fluide (F1) qui coule dans l'espace intérieur (37) via la percée (2a) et puis coule hors de l'espace intérieur (37) via la deuxième fente (2b).
  5. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que la roue centrifugale hélicale (20) est disposée rotative-ment à l'intérieur du boîtier de pompe (3), la roue centrifugale hélicale (20) et l'arrangement de la percée (2a) étant implémentés en adaption mutuelle de telle manière que le côté arrière (25a) de la roue centrifugale hélicale (20) ne couvre pas la percée (2a) en direction de visée parallèle à un axe rotatif (A) de la roue centrifugale hélicale (20) ou, en rotation de la roue centrifugale hélicale (20) par 360 degrés, la couvre seulement pendant un angle partiel.
  6. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que la roue centrifugale hélicale (20) comporte le moyeu (21) et une aube (25)
    et que la pompe à roue centrifugale hélicale (1) aussi comporte un arbre d'entraînement rotatif (33) raccordé à la roue centrifugale hélicale (20).
  7. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que l'aperture d'entrée (2l) forme une surface d'entrée (2m) s'étendant sensiblement en parallèle à l'axe rotatif (A).
  8. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que l'aperture d'entrée (2l) forme une surface d'entrée (2m) s'étendant sensiblement en parallèle à l'axe rotatif (A).
  9. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce qu'au moins une surface partielle (2k) du côté avant (2h) s'étend sensiblement en forme de cône tronqué ou sensiblement à plat.
  10. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que la plaque de recouvrement (2) comporte au moins deux percées (2a),
    les au moins deux percées (2a) étant en particulier disposées symétriquement par rapport à l'axe rotatif (A).
  11. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que la plaque de recouvrement (2) consiste en une pièce coulée et que l'enfonçure (2c), et avantageusement aussi l'aperture d'entrée (2l), déjà forme une partie de la pièce coulée non-traitée.
  12. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que la percée (2a) s'étend perpendiculairement ou sensiblement perpendiculairement par rapport au côté avant (2h) ou à la surface partielle (2k).
  13. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que la percée (2a) s'étend transversalement par rapport au côté avant (2h) ou à la surface partielle (2k).
  14. Pompe à roue centrifugale hélicale (1) selon l'une quelconque des revendications précédentes,
    caractérisée en ce que la surface partielle (2h) comporte une enfonçure (2d) s'étendant en forme de spirale, qui s'étend sensiblement à partir de l'aperture centrale (2g) le long de la surface partielle (2h) vers l'extérieur.
EP17152843.3A 2010-11-24 2011-11-24 Couvercle de pompe avec trous formés comme filtres inertiels Active EP3179112B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10192467A EP2458225A1 (fr) 2010-11-24 2010-11-24 Plaque de recouvrement pour une pompe de roue centrifuge à vis et pompe de roue centrifuge à vis comprenant une telle plaque de recouvrement
PCT/EP2011/070995 WO2012069618A1 (fr) 2010-11-24 2011-11-24 Pompe à roue hélicocentrifuge autonettoyante présentant recirculation en aval de la roue à aubes
EP11796936.0A EP2643595B1 (fr) 2010-11-24 2011-11-24 Pompe à écoulement radial autonettoyante avec recirculation derrière la roue à aubes

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP11796936.0A Division EP2643595B1 (fr) 2010-11-24 2011-11-24 Pompe à écoulement radial autonettoyante avec recirculation derrière la roue à aubes
EP11796936.0A Division-Into EP2643595B1 (fr) 2010-11-24 2011-11-24 Pompe à écoulement radial autonettoyante avec recirculation derrière la roue à aubes

Publications (2)

Publication Number Publication Date
EP3179112A1 EP3179112A1 (fr) 2017-06-14
EP3179112B1 true EP3179112B1 (fr) 2020-08-05

Family

ID=43828365

Family Applications (4)

Application Number Title Priority Date Filing Date
EP10192467A Withdrawn EP2458225A1 (fr) 2010-11-24 2010-11-24 Plaque de recouvrement pour une pompe de roue centrifuge à vis et pompe de roue centrifuge à vis comprenant une telle plaque de recouvrement
EP11799082.0A Active EP2643596B1 (fr) 2010-11-24 2011-11-24 Pompe auto-nettoyante à rouet centrifuge hélicoïdal avec écoulement auxiliaire de rinçage derrière le rouet
EP17152843.3A Active EP3179112B1 (fr) 2010-11-24 2011-11-24 Couvercle de pompe avec trous formés comme filtres inertiels
EP11796936.0A Active EP2643595B1 (fr) 2010-11-24 2011-11-24 Pompe à écoulement radial autonettoyante avec recirculation derrière la roue à aubes

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP10192467A Withdrawn EP2458225A1 (fr) 2010-11-24 2010-11-24 Plaque de recouvrement pour une pompe de roue centrifuge à vis et pompe de roue centrifuge à vis comprenant une telle plaque de recouvrement
EP11799082.0A Active EP2643596B1 (fr) 2010-11-24 2011-11-24 Pompe auto-nettoyante à rouet centrifuge hélicoïdal avec écoulement auxiliaire de rinçage derrière le rouet

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11796936.0A Active EP2643595B1 (fr) 2010-11-24 2011-11-24 Pompe à écoulement radial autonettoyante avec recirculation derrière la roue à aubes

Country Status (7)

Country Link
US (2) US9879695B2 (fr)
EP (4) EP2458225A1 (fr)
JP (2) JP5988106B2 (fr)
CN (2) CN103339386B (fr)
DK (3) DK2643595T3 (fr)
RU (2) RU2566865C2 (fr)
WO (2) WO2012069618A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9719515B2 (en) * 2013-01-11 2017-08-01 Liberty Pumps, Inc. Liquid pump
IL233615A (en) * 2014-07-10 2016-02-29 Ettem Eng S A Ltd Method and devices for discharging pollutants from a sealing chamber
CN104131980B (zh) * 2014-08-14 2017-01-25 杨付许 滚筒式泥浆刷墙机及其泥浆泵
EP3303844B1 (fr) * 2015-06-03 2019-09-18 GEA Tuchenhagen GmbH Roue pour une pompe centrifuge et pompe centrifuge
RU170010U1 (ru) * 2016-09-28 2017-04-11 Валентина Ильинична Жушман Оседиагональный шнековый насос
CN113167280B (zh) * 2017-10-12 2024-07-12 伟尔矿物澳大利亚私人有限公司 浆料泵的入口部件
CN112941827B (zh) * 2019-11-26 2022-12-09 青岛海尔洗衣机有限公司 具有自清洁装置的波轮洗衣机

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297001A (en) * 1939-03-17 1942-09-29 Bour Harry E La Self-priming centrifugal pump
US2769390A (en) * 1954-06-02 1956-11-06 Brummer Seal Co Water cooled annular seal
CH396639A (de) * 1959-10-08 1965-07-31 Voith Gmbh J M Kreiselpumpe
US3115841A (en) * 1961-11-16 1963-12-31 Thompson Ramo Wooldridge Inc Pump assembly
DE1528651B2 (de) * 1965-01-23 1975-12-18 Albert 5204 Lohmar Blum Schmutzwasserpumpe
US3632220A (en) * 1970-08-27 1972-01-04 Chrysler Corp Coolant pump
SU737654A1 (ru) * 1974-12-24 1980-05-30 Всесоюзный Ордена Ленина Проектно- Изыскательский И Научно-Исследовательский Институт "Гидропроект" Им.С.Я.Жука Центробежный насос
CH627236A5 (fr) * 1978-02-14 1981-12-31 Martin Staehle
CH633617A5 (de) * 1978-08-31 1982-12-15 Martin Staehle Kreiselpumpe mit einschaufel-laufrad zur foerderung von langfaserigen aufgeschwemmten feststoffen.
AU538118B2 (en) * 1979-10-29 1984-08-02 Rockwell International Inc. Seal assembly
US4575312B1 (en) * 1982-06-02 1989-05-16 Impeller
CH660511A5 (en) * 1982-12-22 1987-04-30 Martin Staehle Centrifugal pump having a single-blade impeller
CH662864A5 (en) 1983-04-20 1987-10-30 Martin Staehle Centrifugal pump having an open-type single-blade impeller
IT1174991B (it) * 1983-07-06 1987-07-01 Pompe F B M Spa Pompa centrifuga per materiali e prodotti molto densi e/o viscosi
US4773823A (en) * 1984-11-13 1988-09-27 Tolo, Inc. Centrifugal pump having improvements in seal life
DE3517499A1 (de) * 1985-05-15 1986-11-20 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Laufrad
JPS6352992U (fr) * 1986-09-25 1988-04-09
SU1528035A1 (ru) * 1987-02-18 1994-10-30 А.И. Золотарь Центробежный насос
FI872967A (fi) * 1987-07-06 1989-01-07 Ahlstroem Oy Pump och foerfarande foer separering av gas med pumpen ur mediet som skall pumpas.
CA2015777C (fr) * 1990-04-30 1993-10-12 Lynn P. Tessier Pompe centrifuge
US5167418A (en) * 1991-04-04 1992-12-01 Dunford Joseph R Grit protector
US5195867A (en) * 1992-03-05 1993-03-23 Barrett, Haentjens & Co. Slurry pump shaft seal flushing
US5553868A (en) * 1994-11-03 1996-09-10 Dunford; Joseph R. Seal cavity throat bushing
US6190121B1 (en) * 1999-02-12 2001-02-20 Hayward Gordon Limited Centrifugal pump with solids cutting action
GB9907372D0 (en) * 1999-03-30 1999-05-26 Concentric Pumps Ltd Improvements in pumps
US6422358B2 (en) * 2000-01-24 2002-07-23 William T. Deibel Ventilated disc brake rotor
US7008177B2 (en) * 2002-11-14 2006-03-07 Cummins Inc. Centrifugal pump with self cooling and flushing features
JP2005061391A (ja) * 2003-07-30 2005-03-10 Aisin Seiki Co Ltd ポンプ装置
US7037069B2 (en) * 2003-10-31 2006-05-02 The Gorman-Rupp Co. Impeller and wear plate
CN101280922B (zh) * 2006-11-07 2010-06-09 河北宏业机械股份有限公司 一种燃油加热器的锥盖形燃烧器
CN101294580B (zh) * 2007-04-26 2010-04-21 李世煌 一种螺旋流恒压泵
US9350475B2 (en) 2010-07-26 2016-05-24 Qualcomm Incorporated Physical layer signaling to user equipment in a wireless communication system
US8892118B2 (en) 2010-07-23 2014-11-18 Qualcomm Incorporated Methods and apparatuses for use in providing position assistance data to mobile stations

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2643596B1 (fr) 2017-07-12
EP2643595A1 (fr) 2013-10-02
US20130243634A1 (en) 2013-09-19
WO2012069618A1 (fr) 2012-05-31
EP2458225A1 (fr) 2012-05-30
JP2014500930A (ja) 2014-01-16
RU2013128547A (ru) 2014-12-27
CN103339386A (zh) 2013-10-02
EP2643596A1 (fr) 2013-10-02
US20130243568A1 (en) 2013-09-19
RU2566865C2 (ru) 2015-10-27
EP3179112A1 (fr) 2017-06-14
JP5988106B2 (ja) 2016-09-07
WO2012069619A1 (fr) 2012-05-31
RU2013128532A (ru) 2014-12-27
JP2014502328A (ja) 2014-01-30
CN103299085A (zh) 2013-09-11
RU2559958C2 (ru) 2015-08-20
DK2643595T3 (en) 2017-09-18
US9879695B2 (en) 2018-01-30
DK2643596T3 (en) 2017-10-30
JP6028162B2 (ja) 2016-11-16
EP2643595B1 (fr) 2017-05-24
DK3179112T3 (da) 2020-10-12
US9709071B2 (en) 2017-07-18
CN103339386B (zh) 2017-03-29
CN103299085B (zh) 2016-11-16

Similar Documents

Publication Publication Date Title
EP3179112B1 (fr) Couvercle de pompe avec trous formés comme filtres inertiels
DE69113616T2 (de) Seitenkanalpumpe.
EP1797327B1 (fr) Pompe à pistons rotatifs comportant un carter et deux pistons rotatifs à deux pales
DE102009056010B4 (de) Flügelzellenpumpe
DE10327574A1 (de) Laufrad für eine Kraftstoffpumpe
EP3779201B1 (fr) Élément de raclage pour bords d'attaque de roue à aubes pour des pompes à eau
DE112015002306T5 (de) Turbolader
DE112004001196T5 (de) Pumpenlaufrad und Zerkleinerungsplatte für eine Zentrifugalpumpe
DE4428633A1 (de) Kraftstoffpumpe zum Zuführen von Kraftstoff zu einem Fahrzeugmotor
DE102014106440A1 (de) Laufrad, insbesondere für eine Seitenkanalmaschine
DE102009011444A1 (de) Freistromrad mit Schneidkanten
EP2348220B1 (fr) Pompe submersible
DE102010005517B4 (de) Dispergierpumpe
DE102011000732B3 (de) Drehkolbenpumpe
DE69119765T2 (de) Pumpe mit spiralförmigen schaufeln
EP0979354B1 (fr) Pompe regenerative presentant un canal lateral dans le couvercle d'aspiration pour eviter des structures tourbillonnaires a pertes importantes
DE102015212653B4 (de) Haushaltsgerät
DE2757746A1 (de) Vorrichtung zum aufbereiten einer suspension
DE10200579B4 (de) Selbstansaugende Kreiselpumpe
DE102016110224B4 (de) Kreiselpumpe und Laufrad für eine Kreiselpumpe
LU102840B1 (de) Schneidring für mit Feststoff belastete Flüssigkeit einer Pumpe
LU102842B1 (de) Schneidkopf einer Pumpe
DE10030957C1 (de) Kreiskolbenpumpe
EP4108934A1 (fr) Ensemble comprenant une roue motrice et une tête de coupe d'une pompe pour fluide chargé de solide
DE19539564C1 (de) Pumpe mit einer im Saugstutzen angeordneten Schneideinrichtung

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: REQUEST FOR EXAMINATION WAS MADE

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17P Request for examination filed

Effective date: 20170126

AC Divisional application: reference to earlier application

Ref document number: 2643595

Country of ref document: EP

Kind code of ref document: P

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

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STAEHLE, CARL

Inventor name: CIRO, ROBLES

17Q First examination report despatched

Effective date: 20170530

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: 20200228

RIC1 Information provided on ipc code assigned before grant

Ipc: F04D 29/42 20060101AFI20200214BHEP

Ipc: F04D 29/44 20060101ALI20200214BHEP

Ipc: F04D 7/04 20060101ALI20200214BHEP

Ipc: F04D 29/70 20060101ALI20200214BHEP

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

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

AC Divisional application: reference to earlier application

Ref document number: 2643595

Country of ref document: EP

Kind code of ref document: P

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: AT

Ref legal event code: REF

Ref document number: 1299089

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200815

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011016853

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20201008

REG Reference to a national code

Ref country code: FI

Ref legal event code: FGE

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWALTSKANZLEI DAUB, CH

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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: FP

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: 20200805

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: 20201207

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: 20201105

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: 20201105

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: 20200805

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: 20200805

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: 20201106

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

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: 20200805

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: 20200805

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: 20200805

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: 20201205

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

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: 20200805

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: 20200805

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: 20200805

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: 20200805

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011016853

Country of ref document: DE

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: 20200805

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: 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: 20200805

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: 20200805

26N No opposition filed

Effective date: 20210507

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: 20201124

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20201130

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: 20200805

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: 20201124

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: 20200805

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: 20200805

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: 20200805

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: 20200805

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: 20201130

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

Effective date: 20230524

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

Ref country code: NL

Payment date: 20231122

Year of fee payment: 13

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

Ref country code: GB

Payment date: 20231123

Year of fee payment: 13

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

Ref country code: SE

Payment date: 20231123

Year of fee payment: 13

Ref country code: IT

Payment date: 20231130

Year of fee payment: 13

Ref country code: FR

Payment date: 20231123

Year of fee payment: 13

Ref country code: FI

Payment date: 20231120

Year of fee payment: 13

Ref country code: DK

Payment date: 20231122

Year of fee payment: 13

Ref country code: DE

Payment date: 20231120

Year of fee payment: 13

Ref country code: CH

Payment date: 20231201

Year of fee payment: 13

Ref country code: AT

Payment date: 20231117

Year of fee payment: 13