EP2420609A2 - Lye pump for water-bearing domestic appliances and water-bearing domestic appliance - Google Patents

Lye pump for water-bearing domestic appliances and water-bearing domestic appliance Download PDF

Info

Publication number
EP2420609A2
EP2420609A2 EP11176799A EP11176799A EP2420609A2 EP 2420609 A2 EP2420609 A2 EP 2420609A2 EP 11176799 A EP11176799 A EP 11176799A EP 11176799 A EP11176799 A EP 11176799A EP 2420609 A2 EP2420609 A2 EP 2420609A2
Authority
EP
European Patent Office
Prior art keywords
pump
water
intake pipe
suction
pump according
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.)
Granted
Application number
EP11176799A
Other languages
German (de)
French (fr)
Other versions
EP2420609B1 (en
EP2420609A3 (en
Inventor
Edwin Bolduan
Raymond Römer
Marcel Werner
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL11176799T priority Critical patent/PL2420609T3/en
Publication of EP2420609A2 publication Critical patent/EP2420609A2/en
Publication of EP2420609A3 publication Critical patent/EP2420609A3/en
Application granted granted Critical
Publication of EP2420609B1 publication Critical patent/EP2420609B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4225—Arrangements or adaption of recirculation or discharge 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
    • F04D29/44—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
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/001—Preventing vapour lock
    • F04D9/002—Preventing vapour lock by means in the very pump
    • F04D9/003—Preventing vapour lock by means in the very pump separating and removing the vapour

Definitions

  • the present invention relates to a drain pump for water-bearing domestic appliances according to the preamble of claim 1 and to a water-conducting domestic appliance, in particular a laundry treatment machine, with such a drain pump.
  • the amount of air or foam affects both the flow rate and the delivery pressure of the pump. Rising air or foam fractions tend to lead to decreasing flow rates and pump pressures, but also to lower connection capacities for pump operation.
  • the conventionally used lye pumps with generally radial, straight running blades sucked air bubbles remain in the suction pipe of the pump and thus affect the flow, the discharge pressure of the pump sinks.
  • the foam components and air bubbles remaining in the filter insert the liquid-flow cross-section in the suction pipe narrows and the suction power decreases.
  • the flow In the flow cross-section of the suction tube / suction mouth of the drain pump, the flow is caused to rotate over a relatively long range or to be introduced into the pressure chamber of the pump by design.
  • the lighter medium, air collects centrally in the intake pipe and forms there vortices that can spread over the entire length of the intake pipe.
  • the resulting in the intake manifold vortex impedes pumping out of the liquid to be pumped. Often this process leads so far that the flow can be completely torn off. The result is malfunctions during pumping, which can only be counteracted by targeted additional measures.
  • a mechanical solution variant is proposed.
  • a centrifuge is provided with a plate-shaped bottom part in the circulation.
  • the mixture of foam and wash liquor enters the centrifuge axially and is accelerated radially outwards by the dish-shaped bottom part on a spiral path. Due to the very different densities of water and foam act on the two components of the wash liquor different strong centrifugal forces, whereby the foam is destroyed during acceleration.
  • the DE 195 37 944 A1 relates to a drain pump to pump from washing machines or the like. Lye from a tub.
  • the pump housing is preceded by a so-called foreign body trap, which is separated by an intermediate plate of the pump housing. Through at least one ventilation opening in the intermediate plate, accumulating air in the pump housing can enter the foreign body trap and escape from it through a vent opening which is provided in the outer wall of the foreign body trap.
  • a drain pump of the type mentioned in the pump chamber, a Vorleit excited with a substantially horizontally disposed in the hollow cylindrical portion (intake pipe) is provided.
  • at least one flat vane is arranged on the outer surface of the intake pipe and extends in the axial direction of the intake pipe.
  • the invention has for its object to change known liquor pumps with simple means so that their capacity at high air and foam content is improved and to create a water-conducting household appliance with a drain pump, which ensures a stable delivery process with short program times.
  • the inventively designed drain pump whose ventilation is improved and the flow stabilized.
  • the entire pump-down process can be traversed even at high air or foam content in the working fluid to be pumped with stable operating conditions and thus maximum possible flow in a shorter time.
  • the pump shows an improved start-up behavior. The noise level during the start-up phase is greatly reduced. Furthermore, it is advantageous that the shortened and more efficient Abpumpvor réelle the wear of the pump is reduced.
  • the drain pump according to the invention in the suction pipe, which connects the Pumpenvor hamper with the pump pressure chamber, an overhead venting channel.
  • the air bubbles in the flow can escape via the vent channel from the suction pipe and be discharged against the incoming working fluid via the upwardly inclined drain hose.
  • At least one baffle is arranged radially on the outside of the intake pipe parallel to the ventilation channel.
  • the arrangement of the baffles on the intake pipe acts as a swirl brake, thereby preventing the formation of vortices.
  • at least one oblique or curved axial rib is arranged outside the intake pipe. The oblique or curved axial ribs are aligned with the connection piece on the suction side.
  • the water-conducting domestic appliance in particular a laundry washing machine, comprises the drainage pump according to the invention, which is arranged in a connected liquor drainage system of the domestic appliance.
  • the drainage pump according to the invention for washing laundry or dishes notoriously water and washing substances are used in washing machines, wherein during the Treatment process can cause a lot of foam. Therefore, the use of such a drain pump is particularly advantageous in washing machines, since even such a mixture of water and foam can be carried away quickly and reliably. Thus, even with laundry washing machines with a larger drum volume and shorter program times, a stable process flow can be ensured.
  • the Figures 1 and 2 show the drain pump 1 a laundry washing machine 17 consisting of a pump housing 2 with an impeller 9, which is driven by a motor 8 and a filter cartridge 3, which is liquid-tight connectable to the pump housing 2.
  • the fluid connection of the drain pump 1 with the tub is via a drain hose 7, which is attached with a slight slope to the tub on the intake manifold 5 of the pump housing 2.
  • the drainage hose 6 is attached to the connecting piece 4 of the drain pump 1 and connected to the pump 1 in a mechanically strong and fluid-tight manner.
  • the discharge hose 6 the pumped liquid is discharged to the outside.
  • the partition wall 14 between the pre-chamber 16 and the pressure chamber 15 of the drain pump 1 has centrally a circular opening, to which the intake pipe 13 is attached. For venting the intake pipe 13, this is provided with an overhead axially aligned vent passage 11.
  • two baffles 10 are inserted parallel to the ventilation channel 11 at an angle of approximately 180 °.
  • the baffles 10 act as a swirl brake, whereby the formation of vortices in the liquid to be conveyed can be suppressed.
  • curved ribs 12 have a positive effect on the flow behavior in the prechamber 16, in particular in the case of a mixture of foam and water to be conveyed.
  • the intake pipe 13 is made of a plastic.
  • the baffles 10 and the curved ribs 12 are formed of the same material formed on the intake manifold.
  • the implementation of the invention is very simple. The necessary effort is limited to a constructive change of the filter cartridge 3 and a change in the required production tools.
  • the Fig. 3 shows a laundry washing machine 17 with the above-described drain pump, which is arranged in the lower front area, in or behind a front panel 18 and which is connected to a drain hose 7 from a tub 19 and with a drain hose 6, through which to be pumped liquor discharged from the laundry washing machine can be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The discharge pump has a suction pipe (13) which is provided with a vent channel (11). The baffles (10) are radially arranged outside the suction pipe, and are parallel to the vent channel. The curved axial ribs (12) are arranged outside the suction pipe, for connecting a pin (5) arranged at the suction side. The baffles and axial ribs are integrated with the suction pipe into a single-component. An independent claim is included for water-bearing household appliance.

Description

Die vorliegende Erfindung bezieht sich auf eine Laugenpumpe für wasserführende Haushaltgeräte gemäß dem Oberbegriff des Patentanspruchs 1 und auf ein wasserführendes Haushaltgerät, insbesondere eine Wäschebehandlungsmaschine, mit einer solchen Laugenpumpe.The present invention relates to a drain pump for water-bearing domestic appliances according to the preamble of claim 1 and to a water-conducting domestic appliance, in particular a laundry treatment machine, with such a drain pump.

Bei wasserführenden Haushaltgeräten der in Rede stehenden Art wird durch das Abpumpsystem mittels einer Flüssigkeitspumpe, die über eine Ablaufleitung mit dem die Arbeitsflüssigkeit aufnehmenden Behälter verbunden ist, die Arbeitsflüssigkeit angesaugt und über eine nach oben gerichtete Leitung auf der Druckseite der Pumpe ins Abwassernetz oder für den weiteren Arbeitsprozess in den Arbeitsbehälter befördert.In water-conducting household appliances of the type in question is sucked by the pumping system by means of a liquid pump, which is connected via a drain line with the working fluid receiving container, the working fluid and an upward line on the pressure side of the pump into the sewer network or for the other Work process transported in the work container.

Im Folgenden wird wegen der größeren Bedeutung der Erfindung für Wäschewaschmaschinen, insbesondere Geräten mit vergrößertem Trommelvolumen und verkürzten Programmzeiten, nur auf die Funktion des Erfindungsgegenstandes für derartige Geräte Bezug genommen. Die Anwendbarkeit der Erfindung bei anderen Haushaltgeräten wie beispielsweise Geschirrspülern wird dadurch nicht eingeschränkt.In the following, due to the greater importance of the invention for laundry washing machines, in particular devices with increased drum volume and shorter program times, reference is made only to the function of the subject invention for such devices. The applicability of the invention to other domestic appliances such as dishwashers is not limited thereby.

Bei Wäschewaschmaschinen mit großem Trommelvolumen und verkürzten Programmzeiten führen der höhere Wasseranfall insbesondere im Schleuderhochlauf und die verkürzten Prozessabläufe im Schleuderprofil zu erhöhten Anforderungen an die Laugenpumpe des Gerätes. Standardpumpen stoßen bei derartig hohen Anforderungen an ihre Grenzen. Der Luft-und Schaumanteil in dem von der Pumpe zu fördernden Flüssigkeitsstrom ist insbesondere beim Schleuderhochlauf besonders hoch. Es kommt zu Störungen im Abpumpsystem und damit zu Unterbrechungen im Programmablauf der Wäschewaschmaschine.In the case of laundry washing machines with a large drum volume and shorter program times, the higher water supply, in particular in the spin-up run and the shortened process sequences in the spin profile, lead to increased demands on the drain pump of the device. Standard pumps reach their limits with such high demands. The air and foam content in the liquid flow to be delivered by the pump is particularly high, especially during spin-up. It comes to disruptions in the pumping system and thus to interruptions in the program flow of the laundry washing machine.

Die Höhe des Luft- bzw. Schaumanteils beeinflusst sowohl den Förderstrom als auch den Förderdruck der Pumpe. Dabei führen steigende Luft- bzw. Schaumanteile tendenziell zu abnehmenden Förderströmen und Pumpendrücken, aber auch zu sinkenden Anschlussleistungen für den Pumpenbetrieb. Bei den herkömmlich verwendeten Laugenpumpen mit in der Regel radialen, gerade verlaufenden Schaufeln verharren angesaugte Luftbläschen im Saugrohr der Pumpe und beeinträchtigen somit den Förderstrom, der Förderdruck der Pumpe sinkt. Durch die im Filtereinsatz verharrenden Schaumanteile und Luftbläschen verengt sich der flüssigkeitsdurchströmte Querschnitt im Saugrohr und die Saugleistung sinkt.The amount of air or foam affects both the flow rate and the delivery pressure of the pump. Rising air or foam fractions tend to lead to decreasing flow rates and pump pressures, but also to lower connection capacities for pump operation. With the conventionally used lye pumps with generally radial, straight running blades sucked air bubbles remain in the suction pipe of the pump and thus affect the flow, the discharge pressure of the pump sinks. As a result of the foam components and air bubbles remaining in the filter insert, the liquid-flow cross-section in the suction pipe narrows and the suction power decreases.

Im Strömungsquerschnitt des Saugrohrs/Saugmunds der Laugenpumpe wird konstruktionsbedingt die Strömung über einen längeren Bereich in Rotation versetzt bzw. rotierend in die Druckkammer der Pumpe eingeleitet. Das leichtere Medium Luft sammelt sich zentral im Ansaugrohr und bildet dort Wirbel, die sich über die gesamte Saugrohrlänge ausbreiten können. Der im Saugrohr entstandene Wirbel behindert ein Abpumpen der zu fördernden Flüssigkeit. Oft führt dieser Vorgang so weit, dass der Förderstrom komplett abreißen kann. Die Folge sind Betriebsstörungen beim Abpumpen, denen nur durch zielgerichtete zusätzliche Maßnahmen entgegen gewirkt werden kann.In the flow cross-section of the suction tube / suction mouth of the drain pump, the flow is caused to rotate over a relatively long range or to be introduced into the pressure chamber of the pump by design. The lighter medium, air, collects centrally in the intake pipe and forms there vortices that can spread over the entire length of the intake pipe. The resulting in the intake manifold vortex impedes pumping out of the liquid to be pumped. Often this process leads so far that the flow can be completely torn off. The result is malfunctions during pumping, which can only be counteracted by targeted additional measures.

Aus dem Stand der Technik sind zur Lösung dieses Problems Verfahren bekannt, die die Schaumbildung verringern und/oder die Schaummenge reduzieren. Als ein Beispiel wird das in der DE 102 34 472 A1 beschriebene Verfahren angeführt. Mittels geeigneter Sensoren wird der Schaum im Laugenbehälter einer Wäschewaschmaschine detektiert. Die Sensorsignale werden gemäß dem bekannten Verfahren über die Zeit erfasst und geräteintern ausgewertet. Abhängig vom Ergebnis der Auswertung werden programmgesteuert geeignete Schaumbehandlungsmaßnahmen eingeleitet. Als geeignete Maßnahmen werden in der genannten Offenlegungsschrift eine Veränderung der Drehzahl der Trommel beim Schleudern, eine Temperaturerhöhung der Flüssigkeit im Laugenbehälter und die Zuführung einer bestimmten Menge kalten und/oder warmen Wassers aufgeführt.From the prior art, to solve this problem, methods are known which reduce foaming and / or reduce the amount of foam. As an example, that will be in the DE 102 34 472 A1 described method. By means of suitable sensors, the foam is detected in the tub of a laundry washing machine. The sensor signals are detected according to the known method over time and evaluated within the device. Depending on the result of the evaluation, suitable foam treatment measures are initiated programmatically. As suitable measures, a change in the rotational speed of the drum when spinning, a temperature increase of the liquid in the tub and the supply of a certain amount of cold and / or warm water are listed in the said publication.

Es zeigt sich, dass durch eine entsprechende Steuerung des Waschprozesses der Luft-und Schaumanteil im Förderstrom reduziert werden kann. Mit den beschriebenen Maßnahmen zur Schaumreduzierung oder ähnlichen dieser Art, die in weiteren Schriften offenbart sind, ist der Nachteil verbunden, dass die Programmzeit - insbesondere der Schleudergang - erheblich verlängert wird. Ein weiterer wichtiger Nachteil dieser bekannten Verfahren besteht darin, dass mit der Zuführung von zusätzlichem Wasser, das am eigentlichen Waschprozess nicht beteiligt ist, der Wasserverbrauch steigt. Mit der Maßnahme einer Temperaturerhöhung der Arbeitsflüssigkeit im Laugenbehälter erhöht sich zusätzlich der Energieverbrauch der Wäschewaschmaschine.It can be seen that the amount of air and foam in the flow can be reduced by appropriate control of the washing process. With the measures described for foam reduction or similar of this type, which are disclosed in further documents, the disadvantage that the program time - especially the spin cycle - is considerably extended. Another important disadvantage of these known methods is that with the supply of additional water, which is not involved in the actual washing process, the water consumption increases. With the measure of a temperature increase of the working fluid in the tub, the energy consumption of the laundry washing machine also increases.

Diese Mängel zu beseitigen, wird in der DE 197 52 296 A1 vorgeschlagen, zwischen Zu-und Ablauf der Entleerungspumpe eine Bypassleitung anzuordnen. Über die Bypassleitung wird der Pumpenkammer immer eine gewisse Teilwassermenge aus dem Entleerungsschlauch zugeleitet. Da diese Teilwassermenge nur einen geringen Luftanteil enthält, kann somit der Pumpbetrieb stabilisiert werden.To eliminate these shortcomings will be in the DE 197 52 296 A1 proposed to arrange a bypass line between inlet and outlet of the drain pump. About the bypass line the pump chamber is always fed a certain amount of partial water from the drain hose. Since this partial amount of water contains only a small proportion of air, thus the pumping operation can be stabilized.

In der DE 41 33 554 A1 wird zur Beseitigung des Schaums in einer Geschirrspülmaschine eine mechanische Lösungsvariante vorgeschlagen. Dazu ist im Umwälzkreislauf eine Zentrifuge mit einem tellerförmigen Bodenteil vorgesehen. Das Gemisch aus Schaum und Spülflotte tritt axial in die Zentrifuge ein und wird durch den tellerförmigen Bodenteil auf einer Spiralbahn radial nach außen beschleunigt. Durch die sehr unterschiedlichen Dichten von Wasser und Schaum wirken auf die beiden Bestandteile der Spülflotte verschieden starke Zentrifugalkräfte, wodurch der Schaum während der Beschleunigung zerstört wird.In the DE 41 33 554 A1 For the removal of the foam in a dishwasher, a mechanical solution variant is proposed. For this purpose, a centrifuge is provided with a plate-shaped bottom part in the circulation. The mixture of foam and wash liquor enters the centrifuge axially and is accelerated radially outwards by the dish-shaped bottom part on a spiral path. Due to the very different densities of water and foam act on the two components of the wash liquor different strong centrifugal forces, whereby the foam is destroyed during acceleration.

Bei den beiden letztgenannten Lösungen werden zur Stabilisierung des Ab- bzw. Umpumpprozesses zusätzliche Bauteile eingesetzt. Damit ist in nachteiliger Weise ein höherer Aufwand verbunden, insbesondere bei der Gerätemontage. Für den Betrieb der Zentrifuge ist außerdem ein zusätzlicher Antrieb erforderlich, durch den die Kosten und der Energieverbrauch des Gerätes steigen.In the latter two solutions, additional components are used to stabilize the pumping or Umpumpprozesses. This is disadvantageously associated with a higher cost, especially in the device assembly. The operation of the centrifuge also requires an additional drive which increases the cost and energy consumption of the device.

Die DE 195 37 944 A1 betrifft eine Entleerungspumpe, um aus Waschmaschinen oder dgl. Lauge aus einem Laugenbehälter abzupumpen. Dem Pumpengehäuse ist eine so genannte Fremdkörperfalle vorgeschaltet, die durch eine Zwischenplatte von dem Pumpengehäuse getrennt ist. Durch wenigstens eine Belüftungsöffnung in der Zwischenplatte kann im Pumpengehäuse sich ansammelnde Luft in die Fremdkörperfalle gelangen und aus dieser durch eine Entlüftungsöffnung entweichen, die in der Außenwand der Fremdkörperfalle vorgesehen ist.The DE 195 37 944 A1 relates to a drain pump to pump from washing machines or the like. Lye from a tub. The pump housing is preceded by a so-called foreign body trap, which is separated by an intermediate plate of the pump housing. Through at least one ventilation opening in the intermediate plate, accumulating air in the pump housing can enter the foreign body trap and escape from it through a vent opening which is provided in the outer wall of the foreign body trap.

Aus der DE 10 2008 054 998 B3 ist eine Laugenpumpe der eingangs genannten Art bekannt, in deren Pumpenkammer eine Vorleiteinrichtung mit einem in der Kammer im wesentlichen horizontal liegenden hohlen zylindrischen Teil (Ansaugrohr) vorgesehen ist. Zur Verbesserung der Förderleistung durch eine Optimierung der Strömungseigenschaften aufschäumender Waschlaugen bei zugleich reduzierter Schallemission ist auf der äußeren Oberfläche des Ansaugrohres wenigstens ein flacher Flügel angeordnet, der sich in axialer Richtung des Ansaugrohres erstreckt.From the DE 10 2008 054 998 B3 is a drain pump of the type mentioned, in the pump chamber, a Vorleiteinrichtung with a substantially horizontally disposed in the hollow cylindrical portion (intake pipe) is provided. In order to improve the delivery rate by optimizing the flow properties of intumescent wash liquors while at the same time reducing acoustic emission, at least one flat vane is arranged on the outer surface of the intake pipe and extends in the axial direction of the intake pipe.

Der Erfindung liegt die Aufgabe zugrunde, bekannte Laugenpumpen mit einfachen Mitteln so zu verändern, dass deren Förderleistung bei hohem Luft- und Schaumanteil verbessert wird und ein wasserführendes Haushaltsgerät mit einer Laugenpumpe zu schaffen, welches bei kurzen Programmzeiten einen stabilen Förderprozess sichert.The invention has for its object to change known liquor pumps with simple means so that their capacity at high air and foam content is improved and to create a water-conducting household appliance with a drain pump, which ensures a stable delivery process with short program times.

Erfindungsgemäß wird die Aufgabe durch die im kennzeichnenden Teil des Patentanspruchs 1 und des Patentanspruchs 7 genannten Merkmale gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen enthalten.According to the invention the object is achieved by the features mentioned in the characterizing part of patent claim 1 and claim 7. Advantageous embodiments of the invention are contained in the subclaims.

Mit der erfindungsgemäß gestalteten Laugenpumpe wird deren Belüftung verbessert und der Förderstrom stabilisiert. Durch die vorgeschlagenen Maßnahmen an der Förderpumpe können Pumpabbrüche vermieden werden, der gesamte Abpumpprozess kann auch bei hohem Luft- bzw. Schaumanteil in der zu fördernden Arbeitsflüssigkeit mit stabilen Betriebszuständen und damit maximal möglichem Förderstrom in einer verkürzten Zeit durchfahren werden. Darüber hinaus zeigt die Pumpe ein verbessertes Anlaufverhalten. Der Geräuschpegel während der Anlaufphase ist stark reduziert. Weiterhin ist von Vorteil, dass durch die verkürzten und effizienteren Abpumpvorgänge der Verschleiß der Pumpe verringert wird.With the inventively designed drain pump whose ventilation is improved and the flow stabilized. By the proposed measures on the pump pump breaks can be avoided, the entire pump-down process can be traversed even at high air or foam content in the working fluid to be pumped with stable operating conditions and thus maximum possible flow in a shorter time. In addition, the pump shows an improved start-up behavior. The noise level during the start-up phase is greatly reduced. Furthermore, it is advantageous that the shortened and more efficient Abpumpvorgänge the wear of the pump is reduced.

Als wesentliches Merkmal weist die erfindungsgemäße Laugenpumpe im Saugrohr, das die Pumpenvorkammer mit der Pumpendruckkammer verbindet, einen oben liegenden Entlüftungskanal auf. Die Luftbläschen im Förderstrom können über den Entlüftungskanal aus dem Saugrohr austreten und gegen die zuströmende Arbeitsflüssigkeit über den nach oben geneigten Ablaufschlauch abgeleitet werden.As an essential feature, the drain pump according to the invention in the suction pipe, which connects the Pumpenvorkammer with the pump pressure chamber, an overhead venting channel. The air bubbles in the flow can escape via the vent channel from the suction pipe and be discharged against the incoming working fluid via the upwardly inclined drain hose.

In Ausgestaltung der Erfindung ist außen am Ansaugrohr parallel zum Entlüftungskanal mindestens eine Prallwand radial angeordnet. Die Anordnung der Prallwände am Ansaugrohr wirkt als Drallbremse und verhindert dadurch die Ausbildung von Wirbeln. In weiterer Ausgestaltung der Erfindung ist außen am Ansaugrohr mindestens eine schräge oder geschwungene axiale Rippe angeordnet. Die schrägen bzw. geschwungenen axialen Rippen sind zum Anschlussstutzen auf der Saugseite ausgerichtet. Durch die Rippen ergeben sich strömungstechnische Vorteile, die zu einer weiteren Verbesserung des Abpumpvorgangs führen.In an embodiment of the invention, at least one baffle is arranged radially on the outside of the intake pipe parallel to the ventilation channel. The arrangement of the baffles on the intake pipe acts as a swirl brake, thereby preventing the formation of vortices. In a further embodiment of the invention, at least one oblique or curved axial rib is arranged outside the intake pipe. The oblique or curved axial ribs are aligned with the connection piece on the suction side. By the ribs there are fluidic advantages that lead to a further improvement of the pumping process.

Das wasserführende Haushaltgerät, insbesondere eine Wäschewaschmaschine, umfasst die erfindungsgemäße Laugenpumpe, welche in einem angeschlossenen Laugenablaufsystem des Haushaltgeräts angeordnet ist. Zum Reinigen von Wäsche oder Geschirr werden in Waschmaschinen notorisch Wasser und Waschsubstanzen eingesetzt, wobei während des Behandlungsprozesses viel Schaum entstehen kann. Daher ist der Einsatz einer solchen Laugenpumpe insbesondere bei Waschmaschinen von Vorteil, da auch ein solches Gemisch aus Wasser und Schaum schnell und zuverlässig abgefördert werden kann. Somit kann auch bei Wäschewaschmaschinen mit größerem Trommelvolumen und verkürzten Programmzeiten ein stabiler Prozessablauf sicher gestellt werden.The water-conducting domestic appliance, in particular a laundry washing machine, comprises the drainage pump according to the invention, which is arranged in a connected liquor drainage system of the domestic appliance. For washing laundry or dishes notoriously water and washing substances are used in washing machines, wherein during the Treatment process can cause a lot of foam. Therefore, the use of such a drain pump is particularly advantageous in washing machines, since even such a mixture of water and foam can be carried away quickly and reliably. Thus, even with laundry washing machines with a larger drum volume and shorter program times, a stable process flow can be ensured.

Unter Bezugnahme auf die aufgeführten Zeichnungen wird die Erfindung nachstehend an einem Ausführungsbeispiel näher erläutert. Es zeigen:

Fig. 1:
Eine Laugenpumpe in Draufsicht,
Fig. 2 :
Pumpengehäuse und Filtereinsatz in Perspektivdarstellung und
Fig. 3:
eine perspektivische schematische Ansicht einer Wäschewaschmaschine mit durchsichtig dargestelltem Gehäuse und einem an einen Laugenbehälter angeschlossenen Laugenablaufsystem
With reference to the drawings, the invention will be explained in more detail below using an exemplary embodiment. Show it:
Fig. 1:
A drain pump in plan view,
Fig. 2:
Pump housing and filter cartridge in perspective view and
3:
a perspective schematic view of a laundry washing machine with transparently illustrated housing and a suds outlet system connected to a tub

Die Figuren 1 und 2 zeigen die Laugenpumpe 1 einer Wäschewaschmaschine 17 bestehend aus einem Pumpengehäuse 2 mit einem Flügelrad 9, das von einem Motor 8 angetrieben wird und einem Filtereinsatz 3, der mit dem Pumpengehäuse 2 flüssigkeitssicher verbindbar ist. Die fluide Verbindung der Laugenpumpe 1 mit dem Laugenbehälter erfolgt über einen Ablaufschlauch 7, der mit einer leichten Steigung zum Laugenbehälter am Ansaugstutzen 5 des Pumpengehäuses 2 aufgesteckt ist. Druckseitig ist am Anschlussstutzen 4 der Laugenpumpe 1 der Entleerungsschlauch 6 aufgesteckt und mit der Pumpe 1 mechanisch fest und flüssigkeitssicher verbunden. Über den Entleerungsschlauch 6 wird die abgepumpte Flüssigkeit nach außen abgeführt.The Figures 1 and 2 show the drain pump 1 a laundry washing machine 17 consisting of a pump housing 2 with an impeller 9, which is driven by a motor 8 and a filter cartridge 3, which is liquid-tight connectable to the pump housing 2. The fluid connection of the drain pump 1 with the tub is via a drain hose 7, which is attached with a slight slope to the tub on the intake manifold 5 of the pump housing 2. On the pressure side, the drainage hose 6 is attached to the connecting piece 4 of the drain pump 1 and connected to the pump 1 in a mechanically strong and fluid-tight manner. About the discharge hose 6, the pumped liquid is discharged to the outside.

Die Trennwand 14 zwischen der Vorkammer 16 und der Druckkammer 15 der Laugenpumpe 1 weist mittig eine kreisrunde Öffnung auf, an die das Ansaugrohr 13 angesetzt ist. Zur Entlüftung des Ansaugrohres 13 ist dieses mit einem oben liegenden axial ausgerichteten Entlüftungskanal 11 versehen. Am Außenmantel des Ansaugrohres 13 sind parallel zum Entlüftungskanal 11 etwa um 180° winkelversetzt zwei Prallwände 10 eingesetzt. Die Prallwände 10 wirken als Drallbremse, wodurch die Ausbildung von Wirbeln in der zu fördernden Flüssigkeit unterdrückt werden kann.The partition wall 14 between the pre-chamber 16 and the pressure chamber 15 of the drain pump 1 has centrally a circular opening, to which the intake pipe 13 is attached. For venting the intake pipe 13, this is provided with an overhead axially aligned vent passage 11. On the outer surface of the intake pipe 13, two baffles 10 are inserted parallel to the ventilation channel 11 at an angle of approximately 180 °. The baffles 10 act as a swirl brake, whereby the formation of vortices in the liquid to be conveyed can be suppressed.

Zusätzlich sind am Außenmantel des Ansaugrohres 13 zwei geschwungene, zum Saugsstutzen 5 ausgerichtete Rippen 12 angeordnet. Die geschwungenen Rippen 12 wirken sich positiv auf das Strömungsverhalten in der Vorkammer 16 aus, insbesondere bei einem zu fördernden Gemisch aus Schaum und Wasser.In addition, on the outer surface of the intake pipe 13 two curved, for Suction nozzle 5 aligned ribs 12 arranged. The curved ribs 12 have a positive effect on the flow behavior in the prechamber 16, in particular in the case of a mixture of foam and water to be conveyed.

Das Ansaugrohr 13 ist aus einem Kunststoff gefertigt. Die Prallwände 10 und die geschwungenen Rippen 12 sind aus dem gleichen Material bestehend am Ansaugrohr angeformt. Wie aus der Konstruktion des Filtereinsatzes 3 erkennbar, ist die Umsetzung der Erfindung sehr einfach. Der notwendige Aufwand beschränkt sich auf eine konstruktive Änderung des Filtereinsatzes 3 und eine Änderung der dafür erforderlichen Fertigungswerkzeuge.The intake pipe 13 is made of a plastic. The baffles 10 and the curved ribs 12 are formed of the same material formed on the intake manifold. As can be seen from the construction of the filter cartridge 3, the implementation of the invention is very simple. The necessary effort is limited to a constructive change of the filter cartridge 3 and a change in the required production tools.

Die Fig. 3 zeigt eine Wäschewaschmaschine 17 mit der vorstehend beschriebenen Laugenpumpe, welche im unteren vorderen Bereich, in oder hinter einer Frontblende 18 angeordnet ist und welche mit einem Ablaufschlauch 7 aus einem Laugenbehälter 19 und mit einem Entleerungsschlauch 6 verbunden ist, durch welche abzupumpende Lauge aus der Wäschewaschmaschine abgeführt werden kann.The Fig. 3 shows a laundry washing machine 17 with the above-described drain pump, which is arranged in the lower front area, in or behind a front panel 18 and which is connected to a drain hose 7 from a tub 19 and with a drain hose 6, through which to be pumped liquor discharged from the laundry washing machine can be.

Bezugszeichenreference numeral

1.1.
LaugenpumpeDrain pump
2.Second
Pumpengehäusepump housing
3.Third
Filtereinsatzfilter cartridge
4.4th
Anschlussstutzen auf der DruckseiteConnecting piece on the pressure side
5.5th
Saugstutzensuction
6.6th
Entleerungsschlauchdrain hose
7.7th
Ablaufschlauchdrain hose
8.8th.
Motorengine
9.9th
Flügelradimpeller
10.10th
Prallwandbaffle wall
11.11th
Entlüftungskanalvent channel
12.12th
Geschwungene RippeCurved rib
13.13th
Saugrohrsuction tube
14.14th
Trennwandpartition wall
15.15th
Druckkammerpressure chamber
16.16th
Vorkammerantechamber
17.17th
WäschewaschmaschineLaundromat
18.18th
Frontblendefront panel
19.19th
Laugenbehältertub

Claims (7)

Laugenpumpe (1) für wasserführende Haushaltgeräte (17) zum Abführen und/oder Umwälzen der Arbeitsflüssigkeit ausgerüstet mit Anschlussstutzen (5, 4) auf der Saugseite und auf der Druckseite und mit einem Ansaugrohr (13), dadurch gekennzeichnet, dass das Ansaugrohr (13) in der Pumpe (1) einen durchgehenden, insbesondere oben liegenden, Entlüftungskanal (11) aufweist.Lye pump (1) for water-bearing household appliances (17) for discharging and / or circulating the working fluid equipped with connecting pieces (5, 4) on the suction side and on the pressure side and with an intake pipe (13), characterized in that the intake pipe (13) in the pump (1) has a continuous, in particular overhead, venting channel (11). Laugenpumpe nach Anspruch 1, dadurch gekennzeichnet, dass außen am Ansaugrohr (13) parallel zum Entlüftungskanal (11) mindestens eine Prallwand (10) radial angeordnet ist.Lase pump according to claim 1, characterized in that outside of the intake pipe (13) parallel to the venting channel (11) at least one baffle (10) is arranged radially. Laugenpumpe nach Anspruch 1, dadurch gekennzeichnet, dass außen am Ansaugrohr (13) parallel zum Entlüftungskanal (11) zwei radiale Prallwände (11) um etwa 180° versetzt angeordnet sind.Lase pump according to claim 1, characterized in that outside the suction pipe (13) parallel to the ventilation channel (11) has two radial baffles (11) offset by approximately 180 °. Laugenpumpe nach Anspruch 1, dadurch gekennzeichnet, dass außen am Ansaugrohr (13) eine geschwungene axiale Rippe (12) angeordnet ist.Lye pump according to claim 1, characterized in that on the outside of the intake pipe (13) has a curved axial rib (12) is arranged. Laugenpumpe nach Anspruch 1, dadurch gekennzeichnet, dass die geschwungene axiale Rippe (12) zum Anschlussstutzen (5) auf der Saugseite ausgerichtet ist.Lye pump according to claim 1, characterized in that the curved axial rib (12) is aligned with the connecting piece (5) on the suction side. Laugenpumpe nach Anspruch 1, dadurch gekennzeichnet, dass das Ansaugrohr (13) mit den Prallwänden (11) und der geschwungenen axialen Rippe (12) einstückig gefertigt ist.Lye pump according to claim 1, characterized in that the suction pipe (13) with the baffles (11) and the curved axial rib (12) is made in one piece. Wasserführendes Haushaltgerät, insbesondere Wäschewaschmaschine, umfassend ein Laugenablaufsystem in dem eine Laugenpumpe (1) nach einem der vorstehenden Ansprüche angeordnet ist.Water-conducting household appliance, in particular laundry washing machine, comprising a liquor drainage system in which a drain pump (1) is arranged according to one of the preceding claims.
EP11176799.2A 2010-08-20 2011-08-08 Lye pump for water-bearing domestic appliances and water-bearing domestic appliance Active EP2420609B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11176799T PL2420609T3 (en) 2010-08-20 2011-08-08 Lye pump for water-bearing domestic appliances and water-bearing domestic appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010039566A DE102010039566A1 (en) 2010-08-20 2010-08-20 Lye pump for water-bearing household appliances and water-conducting household appliance

Publications (3)

Publication Number Publication Date
EP2420609A2 true EP2420609A2 (en) 2012-02-22
EP2420609A3 EP2420609A3 (en) 2017-08-30
EP2420609B1 EP2420609B1 (en) 2020-12-30

Family

ID=44677437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11176799.2A Active EP2420609B1 (en) 2010-08-20 2011-08-08 Lye pump for water-bearing domestic appliances and water-bearing domestic appliance

Country Status (3)

Country Link
EP (1) EP2420609B1 (en)
DE (1) DE102010039566A1 (en)
PL (1) PL2420609T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746441A1 (en) 2012-12-18 2014-06-25 Miele & Cie. KG Method for operating a water-conducting domestic appliance and water-conducting domestic appliance
CN109779977A (en) * 2017-11-14 2019-05-21 青岛海尔滚筒洗衣机有限公司 A kind of bull pump shell structure and washing machine
EP3779021A4 (en) * 2018-05-16 2021-02-17 Samsung Electronics Co., Ltd. Washing machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10321797B2 (en) 2013-08-02 2019-06-18 Electrolux Home Products, Inc. Pump plate for conditioning fluid flow in a dishwasher
DE102014210626B4 (en) * 2014-06-04 2020-06-18 BSH Hausgeräte GmbH Household appliance with a tub

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4133554A1 (en) 1991-10-10 1993-04-15 Bauknecht Hausgeraete HOUSEHOLD APPLIANCE, e.g. WASHING OR DISHWASHER
DE19537944A1 (en) 1995-10-12 1997-04-17 Aeg Hausgeraete Gmbh Discharge pump for washing machines etc.
DE19752296A1 (en) 1997-11-26 1999-05-27 Aeg Hausgeraete Gmbh Washing machine drum
DE10234472A1 (en) 2002-07-29 2004-02-12 BSH Bosch und Siemens Hausgeräte GmbH A method for preventing wash liquor foam inhibiting pump performance in a horizontal drum automatic washing machine has a foam detector controlling the drive motor for the drum
DE102008054998B3 (en) 2008-12-19 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Front loading washing machine, has guiding device arranged before drain pump, hollow cylindrical part comprising two ends, inner upper surface and external upper surface, and vane arranged on external upper surface

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302497A1 (en) * 1993-01-29 1994-08-04 Massindustrie Gmbh Flow pump for dishwashers etc.
EP1024292B1 (en) * 1999-01-26 2004-08-04 Wilo Ag Centrifugal pump with gas separation chamber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4133554A1 (en) 1991-10-10 1993-04-15 Bauknecht Hausgeraete HOUSEHOLD APPLIANCE, e.g. WASHING OR DISHWASHER
DE19537944A1 (en) 1995-10-12 1997-04-17 Aeg Hausgeraete Gmbh Discharge pump for washing machines etc.
DE19752296A1 (en) 1997-11-26 1999-05-27 Aeg Hausgeraete Gmbh Washing machine drum
DE10234472A1 (en) 2002-07-29 2004-02-12 BSH Bosch und Siemens Hausgeräte GmbH A method for preventing wash liquor foam inhibiting pump performance in a horizontal drum automatic washing machine has a foam detector controlling the drive motor for the drum
DE102008054998B3 (en) 2008-12-19 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Front loading washing machine, has guiding device arranged before drain pump, hollow cylindrical part comprising two ends, inner upper surface and external upper surface, and vane arranged on external upper surface

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2746441A1 (en) 2012-12-18 2014-06-25 Miele & Cie. KG Method for operating a water-conducting domestic appliance and water-conducting domestic appliance
CN109779977A (en) * 2017-11-14 2019-05-21 青岛海尔滚筒洗衣机有限公司 A kind of bull pump shell structure and washing machine
EP3779021A4 (en) * 2018-05-16 2021-02-17 Samsung Electronics Co., Ltd. Washing machine
US11834773B2 (en) 2018-05-16 2023-12-05 Samsung Electronics Co., Ltd. Washing machine

Also Published As

Publication number Publication date
EP2420609B1 (en) 2020-12-30
DE102010039566A1 (en) 2012-02-23
EP2420609A3 (en) 2017-08-30
PL2420609T3 (en) 2021-06-28

Similar Documents

Publication Publication Date Title
EP2420609B1 (en) Lye pump for water-bearing domestic appliances and water-bearing domestic appliance
DE102014222050B3 (en) Laundry care device with a drain pump
EP1913262B1 (en) Pump body, pump and a water supply household appliance
DE102009046782A1 (en) Water-bearing household appliance for use as e.g. washing machine, to wash and/dry laundry, has pump inhibiting conveying of liquid by rotating in specific rotation direction, in one of operation modes of pump
EP3351674B1 (en) Laundry care appliance with controls
EP1973460B1 (en) Dishwasher
DE102014206119B4 (en) Method for operating a pump in a household appliance and water-conducting household appliance
EP3219841A1 (en) Method for operating a water-conducting domestic appliance with improved pump operation
EP3411520B1 (en) Laundry treatment appliance comprising a pump drive system
EP3507409B1 (en) Laundry-care appliance having a controller
DE102008054998B3 (en) Front loading washing machine, has guiding device arranged before drain pump, hollow cylindrical part comprising two ends, inner upper surface and external upper surface, and vane arranged on external upper surface
DE102019117652A1 (en) Washing machine with hydrocyclone and method for its operation
EP2746451A1 (en) Method for pumping a liquid from a water-conducting household device, in particular from a washing machine, and water-conducting domestic appliance
EP2416694B1 (en) Water-conducting household appliance, particularly a dishwasher
DE102009046856A1 (en) Water-bearing household appliance e.g. washing machine, for washing and/or drying laundry, has pump unit arranged in discharge and/or return line and provided with rotary piston machine that is formed as gear pump
EP2464274B1 (en) Water-channelling domestic appliance with a pump
KR200464783Y1 (en) Washing machine and drain pump
DE102017211573A1 (en) Method for operating a washing machine with improved pump state detection and suitable washing machine
EP3545812B1 (en) Dishwasher, in particular household dishwasher
DE10318862B4 (en) Water carrying domestic appliance such as dishwasher or washing machine has separate chamber for drain pump located behind impeller and with holes radially on outside diameter and in vicinity of inside diameter
EP3757273B1 (en) Laundry treatment apparatus with pumping device and method for operating the laundry treatment apparatus
EP1576291B1 (en) Water-bearing domestic appliance comprising a drainage pump and corresponding drainage pump
EP4257740A1 (en) Laundry care appliance with a pump
EP2826910A1 (en) Laundry drying device with a pump unit
EP4230871A1 (en) Laundry care appliance with a liquid ring pump

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A2

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

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

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

Owner name: BSH HAUSGERAETE GMBH

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

RIC1 Information provided on ipc code assigned before grant

Ipc: F04D 9/00 20060101ALI20170721BHEP

Ipc: D06F 39/08 20060101AFI20170721BHEP

Ipc: F04D 29/44 20060101ALI20170721BHEP

Ipc: D06F 39/06 20060101ALI20170721BHEP

Ipc: A47L 15/42 20060101ALI20170721BHEP

Ipc: F04D 29/00 20060101ALI20170721BHEP

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: 20180228

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: 20200819

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

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: AT

Ref legal event code: REF

Ref document number: 1350022

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011017025

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

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

Ref country code: GR

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

Effective date: 20210331

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: 20201230

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: 20201230

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: 20210330

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: 20201230

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: 20201230

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: 20210330

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20201230

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

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: 20201230

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

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: 20201230

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: 20210430

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: 20201230

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: 20201230

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: 20201230

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: 20201230

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: 20201230

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

Ref country code: IS

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

Effective date: 20210430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011017025

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: 20201230

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: 20201230

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: 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: 20201230

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: 20201230

26N No opposition filed

Effective date: 20211001

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: 20201230

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: 20201230

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210831

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

Effective date: 20210808

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

Ref country code: LI

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

Effective date: 20210831

Ref country code: CH

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

Effective date: 20210831

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

Ref country code: IS

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

Effective date: 20210430

Ref country code: LU

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

Effective date: 20210808

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: 20210808

Ref country code: GB

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

Effective date: 20210808

Ref country code: FR

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

Effective date: 20210831

Ref country code: BE

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

Effective date: 20210831

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1350022

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210808

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: 20210808

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502011017025

Country of ref document: DE

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

Ref country code: HU

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

Effective date: 20110808

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: 20201230

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: 20201230

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

Ref country code: TR

Payment date: 20230801

Year of fee payment: 13

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

Ref country code: PL

Payment date: 20230801

Year of fee payment: 13

Ref country code: DE

Payment date: 20230831

Year of fee payment: 13

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: 20201230