EP2625429B1 - Pump and method for delivering and degassing a liquid by means of a nozzle in the pump inlet - Google Patents

Pump and method for delivering and degassing a liquid by means of a nozzle in the pump inlet Download PDF

Info

Publication number
EP2625429B1
EP2625429B1 EP11763602.7A EP11763602A EP2625429B1 EP 2625429 B1 EP2625429 B1 EP 2625429B1 EP 11763602 A EP11763602 A EP 11763602A EP 2625429 B1 EP2625429 B1 EP 2625429B1
Authority
EP
European Patent Office
Prior art keywords
pump
drive motor
liquid
degassing
control device
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
EP11763602.7A
Other languages
German (de)
French (fr)
Other versions
EP2625429A1 (en
Inventor
Andreas RÜSING
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.)
Reflex Winkelmann GmbH
Original Assignee
Reflex Winkelmann 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 Reflex Winkelmann GmbH filed Critical Reflex Winkelmann GmbH
Priority to PL11763602T priority Critical patent/PL2625429T3/en
Publication of EP2625429A1 publication Critical patent/EP2625429A1/en
Application granted granted Critical
Publication of EP2625429B1 publication Critical patent/EP2625429B1/en
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
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • F04D9/06—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type

Definitions

  • the invention relates to a pump for conveying and degassing a liquid with a pump housing with pump inlet and pump outlet, wherein within the pump housing a pump wheel connected to a drive motor and a nozzle are provided in a degassing.
  • the invention relates to a method for conveying and degassing a liquid, in particular dissolved in water gases, in a pump.
  • a pump with the features of the preamble of claim 1 is made DE 1 653 690 A known.
  • a nozzle is provided within the pump housing, wherein the nozzle is disposed above a float in a degassing chamber.
  • the applicant is a method and an apparatus for degassing in liquid media, in particular gases dissolved in water, known in a vacuum container in which at least one inlet and a drain, the liquid medium is supplied or removed, wherein the supply via at least a nozzle is made, wherein the negative pressure is generated by a pump connected to a control, wherein the controller controls the pump so that due to the power adjustment between the pump, the nozzle, a pressure reducing valve in the inlet, a pressure reducing valve in an opening into the inlet Make-up and a spill valve in the drain downstream of the pump a larger amount of liquid medium is pumped out of the vacuum tank through the drain as flowing through the inlet, wherein the controller shuts off the pump after the suction of the liquid medium until enough liquid medium has flowed through the inlet into the vacuum tank and pushed the gases through a degassing opening from the vacuum tank have been.
  • Out DE 690 26 045 T2 a remplissyersentgasungspumpe is known with which the degassing of a medium flowing through the pump to be achieved.
  • this pump has a very complex design.
  • Out DE 25 34 952 A1 is an arrangement of pump, strainer and degasser for heaters, especially central heating systems, known with a two half-shell pump housing whose half-shells sit against each other and form an inner chamber in which the Pumpenschaufelrad is housed, the housing of the Schmutzfnatureerentgasers having an annular flange, which sits directly on the frame of the engine and wherein the annular flange has such dimensions that it encloses the two half-shells and holds them in position against the frame of the engine.
  • This pump is very expensive, since it has a special pump design compared to conventional heating pumps.
  • the object of the invention is to provide a cost effective and easy to control solution for degassing of liquid media.
  • a conventional pump for example a heating pump
  • the pump housing may be made somewhat larger in order to achieve a good degassing result.
  • This pump is additionally equipped with a nozzle in the pump inlet and with a control device that controls the drive motor of the pump so that a temporary negative pressure is generated in the pump housing, so that the dissolved gases escape from the pump housing to the environment.
  • the degassing principle corresponds in principle to that which is described in detail in EP 0 933 109 B1 the applicant is described.
  • the control device can operate in different ways to control the pump or the drive motor of the pump or to record and take into account different physical quantities.
  • the degassing device also has a pressure sensor arranged in the pump housing, which is connected to the control device.
  • the drive motor is then switched on or off by the control device as a function of the prevailing pressure conditions in the pump housing.
  • the degassing device may further comprise a level sensor arranged in the pump housing, which is connected to the control device. Depending on the level in the pump housing, the drive motor is then also switched on or off by the control device.
  • control device is designed for the time interval-controlled drive of the drive motor, i. After a predetermined time interval, the control device automatically switches the drive motor of the pump on or off.
  • the invention also provides a method for conveying and degassing a liquid, in particular gases dissolved in water, in a pump into which the liquid enters the pump housing via a pump inlet and from which the liquid via a pump outlet emerges from the pump housing, wherein the supply takes place via at least one nozzle arranged in the pump inlet, wherein in the pump housing by a pump connected to a drive motor, a negative pressure is generated, wherein the drive motor is controlled by a control device so that due to the coordination between the drive motor and the nozzle downstream of the pump exhausts a greater amount of liquid from the pump housing through the pump outlet than flows through the pump inlet, the controller shutting off the drive motor of the pump after aspirating the liquid until sufficient liquid is reached fluid has flowed through the pump inlet into the pump housing and the gases have been forced out of the pump housing through a degassing opening.
  • the controller may control the drive motor of the pump in response to various physical quantities.
  • control device controls the drive motor of the pump as a function of the pressure in the pump housing.
  • control device can also control the drive motor of the pump as a function of the fill level in the pump housing.
  • control device In the simplest way, without additional sensors are required, the control device, the drive motor of the pump and after a predetermined time interval on and off.
  • a pump for conveying and degassing a liquid is indicated generally at 1 in the drawing.
  • This pump 1 has a pump housing 2 with an impeller, not shown, which can be driven by a drive motor 3 connected to the pump housing 2.
  • the pump housing 2 is provided with a pump inlet 4 (suction side) and a pump outlet (pressure side), the interior of the pump housing 2 is designated 6.
  • the pump 1 is designed not only for conveying a liquid but also for degassing the same, for which purpose the pump 1 has a degassing device.
  • This degassing device comprises a nozzle 7 arranged in the pump inlet 4 and a control device (not shown) connected to the drive motor 3.
  • the nozzle 7 is arranged in the pump inlet 4 such that a liquid inlet into the interior 6 of the pump housing 2 is possible only through the nozzle 7.
  • the pump 1 described so far differs from a commercially available pump, eg standard heating pump, apart from the course of the design of the control, which will be discussed in more detail below, only through the nozzle 7 and a preferably enlarged pump housing 2, in the interior 6 a sufficiently large To provide space for degassing of the liquid.
  • the pump 1 can be arranged at a suitable location, for example in a heating circuit.
  • the pump inlet 4 is connected via an example motor-operated ball valve 8 with a Nachspeiseast 9 and a spill valve 10.
  • the pump inlet 4 but may also be connected in other ways with the liquid or heating circuit, the pump outlet 5 of the pump 1 is also connected at a suitable location to the heating circuit.
  • the pump 1 further comprises a vent 11, e.g. is provided with a Peilrohrentgasung 12 and a vacuum gauge 13.
  • a pressure sensor 14 which extends into the interior 6 of the pump housing 2 or, alternatively or additionally, a fill level sensor (not shown) is preferably provided, which or the sensors are connected to the control device.
  • the level is designated F in the drawing.
  • the nozzle 7 and the drive motor 3 are coordinated so that when the drive motor 3 and thus the pump starts, a negative pressure in the interior 6 of the pump housing 2 is generated for a certain time.
  • the liquid e.g. Water is sprayed through the nozzle 7 in the pump housing 2 and the gases are separated by the spraying process and the negative pressure in the interior 6 of the liquid.
  • the drive motor is then switched off by the control device, so that normal static pressure is restored in the interior 6 of the pump housing 2 as a result of the subsequent flow of the fluid through the pump inlet 4 and the nozzle 7. As a result, the gases are eliminated through the degassing opening 11 and the Peilrohrentgasung 12.
  • the control device can control the drive motor of the pump and thus the vacuum generation in different ways.
  • the control can take place in dependence on the pressure detected by the pressure sensor 14 in the pump housing 2 or additionally or alternatively depending on the level.
  • a time interval of controlled drive can also be provided.
  • the pump 1 or its drive motor 3 is then automatically cyclically switched on and off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Degasification And Air Bubble Elimination (AREA)

Description

Die Erfindung betrifft eine Pumpe zur Förderung und Entgasung einer Flüssigkeit mit einem Pumpengehäuse mit Pumpeneinlass und Pumpenauslass, wobei innerhalb des Pumpengehäuses ein mit einem Antriebsmotor verbundenes Pumpenrad und in einer Entgasungseinrichtung eine Düse vorgesehen sind.The invention relates to a pump for conveying and degassing a liquid with a pump housing with pump inlet and pump outlet, wherein within the pump housing a pump wheel connected to a drive motor and a nozzle are provided in a degassing.

Ferner betrifft die Erfindung ein Verfahren zur Förderung und Entgasung einer Flüssigkeit, insbesondere von in Wasser gelösten Gasen, in einer Pumpe.Furthermore, the invention relates to a method for conveying and degassing a liquid, in particular dissolved in water gases, in a pump.

Beim Betrieb von Anlagen mit Medienkreisläufen, z.B. in Heizungs-, Kälte- und Klimaanlagen, gelangen häufig gelöste und freie Gase aus verschiedenen Ursachen in den Medienkreislauf, beispielsweise durch Diffusion durch permeable Bauteile, über eine Nachspeisung flüssigen Mediums oder durch andere Ursachen. Diese Gase können je nach ihren Eigenschaften die Anlage schädigen oder führen zumindest zu unerwünschten Strömungsgeräuschen, erhöhter Erosion und Zirkulationsproblemen.When operating plants with media circuits, e.g. in heating, refrigeration and air conditioning systems, often dissolved and free gases from different causes in the media circulation, for example, by diffusion through permeable components, via a make-up liquid medium or other causes. Depending on their properties, these gases can damage the system or at least lead to undesirable flow noise, increased erosion and circulation problems.

Eine Pumpe mit den Merkmalen des Oberbegriffes des Patentanspruches 1 ist aus DE 1 653 690 A bekannt. Bei dieser Pumpe ist eine Düse innerhalb des Pumpengehäuses vorgesehen, wobei die Düse oberhalb eines Schwimmers in einer Entgasungskammer angeordnet ist.A pump with the features of the preamble of claim 1 is made DE 1 653 690 A known. In this pump, a nozzle is provided within the pump housing, wherein the nozzle is disposed above a float in a degassing chamber.

Aus EP 0 933 109 B1 der Anmelderin sind ein Verfahren und eine Vorrichtung zum Entgasen von in flüssigen Medien, insbesondere in Wasser gelösten Gasen, in einem Unterdruckbehälter bekannt, bei dem über wenigstens einen Zulauf und einen Ablauf das flüssige Medium zu- bzw. abgeführt wird, wobei die Zuführung über wenigstens eine Düse erfolgt, wobei der Unterdruck durch eine mit einer Steuerung verbundene Pumpe erzeugt wird, wobei die Steuerung die Pumpe so ansteuert, dass bedingt durch die Leistungsabstimmung zwischen der Pumpe, der Düse, einem Druckminderventil im Zulauf, einem Druckminderventil in einer in den Zulauf mündenden Nachspeisung und einem Überströmventil in dem Ablauf stromabwärts der Pumpe eine größere Menge an flüssigem Medium aus dem Unterdruckbehälter durch den Ablauf abgepumpt wird als durch den Zulauf hinzufließt, wobei die Steuerung die Pumpe nach dem Absaugen des flüssigen Mediums solange abschaltet, bis genügend flüssiges Medium durch den Zulauf in den Unterdruckbehälter nachgeflossen ist und die Gase durch eine Entgasungsöffnung aus dem Unterdruckbehälter gedrückt worden sind.Out EP 0 933 109 B1 The applicant is a method and an apparatus for degassing in liquid media, in particular gases dissolved in water, known in a vacuum container in which at least one inlet and a drain, the liquid medium is supplied or removed, wherein the supply via at least a nozzle is made, wherein the negative pressure is generated by a pump connected to a control, wherein the controller controls the pump so that due to the power adjustment between the pump, the nozzle, a pressure reducing valve in the inlet, a pressure reducing valve in an opening into the inlet Make-up and a spill valve in the drain downstream of the pump a larger amount of liquid medium is pumped out of the vacuum tank through the drain as flowing through the inlet, wherein the controller shuts off the pump after the suction of the liquid medium until enough liquid medium has flowed through the inlet into the vacuum tank and pushed the gases through a degassing opening from the vacuum tank have been.

Mit diesem bekannten Verfahren und dieser bekannten Vorrichtung ist bei stabilen Zu- und Abströmverhältnissen eine zuverlässige und einfach zu steuernde Entgasung von flüssigen Medien möglich. Dieses Verfahren und diese Vorrichtung haben sich in der Praxis gut bewährt. Allerdings ist der apparative Aufwand mit dem für die Entgasung notwendigen Unterdruckbehälter, insbesondere für kleinere Einheiten, wie Einfamilienhäuser, relativ groß.With this known method and this known device, a reliable and easy-to-control degassing of liquid media is possible with stable inflow and outflow conditions. This method and this device have proven themselves in practice well. However, the apparatus required with the necessary for the degassing vacuum tank, especially for smaller units, such as single-family homes, relatively large.

Aus DE 690 26 045 T2 ist eine Flüssigkeitsentgasungspumpe bekannt, mit der die Entgasung eines durch die Pumpe strömenden Mediums erreicht werden soll. Diese Pumpe weist jedoch eine ausgesprochen aufwendige Gestaltung auf. Aus DE 25 34 952 A1 ist eine Anordnung aus Pumpe, Schmutzfänger und Entgaser für Heizgeräte, insbesondere Zentralheizungsanlagen, mit einem aus zwei Halbschalen bestehenden Pumpengehäuse bekannt, dessen Halbschalen sich gegeneinander setzen und eine Innenkammer bilden, in der das Pumpenschaufelrad untergebracht ist, wobei das Gehäuse des Schmutzfängerentgasers einen Ringflansch aufweist, der sich unmittelbar auf den Rahmen des Motors setzt und wobei der Ringflansch solche Abmessungen aufweist, dass er die beiden Halbschalen umschließt und sie in ihrer Lage gegen den Rahmen des Motors hält. Auch diese Pumpe ist sehr aufwendig, da sie gegenüber herkömmlichen Heizungspumpen eine spezielle Pumpengestaltung aufweist.Out DE 690 26 045 T2 a Flüssigkeitsentgasungspumpe is known with which the degassing of a medium flowing through the pump to be achieved. However, this pump has a very complex design. Out DE 25 34 952 A1 is an arrangement of pump, strainer and degasser for heaters, especially central heating systems, known with a two half-shell pump housing whose half-shells sit against each other and form an inner chamber in which the Pumpenschaufelrad is housed, the housing of the Schmutzfängerentgasers having an annular flange, which sits directly on the frame of the engine and wherein the annular flange has such dimensions that it encloses the two half-shells and holds them in position against the frame of the engine. This pump is very expensive, since it has a special pump design compared to conventional heating pumps.

Aus EP 0 440 455 A1 sind ein Verfahren und eine Vorrichtung zur Abscheidung von Gas aus einer gashaltigen Suspension bekannt, wobei wenigstens ein Teil der Suspension durch eine Kreiselpumpe einer Fliehkraftabscheidung zugeführt oder ausgesetzt wird. Dabei wird in der Kreiselpumpe aus der Suspension Gas abgeschieden, in dem der Druck auf der Saugseite der Kreiselpumpe durch ein Regelventil im Zulauf der Kreiselpumpe geregelt wird.Out EP 0 440 455 A1 For example, a method and an apparatus for separating gas from a gas-containing suspension are known, wherein at least a part of the suspension is fed or suspended by a centrifugal pump to a centrifugal separation. In this case, gas is separated from the suspension in the centrifugal pump, in which the pressure on the suction side of the centrifugal pump is regulated by a control valve in the inlet of the centrifugal pump.

Aufgabe der Erfindung ist es, eine kostengünstige und einfach zu steuernde Lösung zur Entgasung von flüssigen Medien zu schaffen.The object of the invention is to provide a cost effective and easy to control solution for degassing of liquid media.

Diese Aufgabe wird bei einer Pumpe der eingangs bezeichneten Art erfindungsgemäß dadurch gelöst, dass die wenigstens eine Düse im Pumpeneinlass angeordnet ist, wobei ein Flüssigkeitseintritt der noch nicht entgasten Flüssigkeit in einen Innenraum des Pumpengehäuses nur durch die Düse möglich ist.This object is achieved in a pump of the type described according to the invention that the at least one nozzle is arranged in the pump inlet, wherein a liquid inlet of the not yet degassed liquid in an interior of the pump housing only through the nozzle is possible.

Erfindungsgemäß kann somit prinzipiell eine herkömmliche Pumpe, z.B. Heizungspumpe, verwendet werden, bei der zur Erreichung eines guten Entgasungsergebnisses das Pumpengehäuse ggf. etwas vergrößert ausgebildet ist. Diese Pumpe ist zusätzlich mit einer Düse im Pumpeneinlass ausgerüstet und mit einer Steuereinrichtung, die den Antriebsmotor der Pumpe so steuert, dass im Pumpengehäuse zeitweise ein Unterdruck erzeugt wird, so dass die gelösten Gase aus dem Pumpengehäuse an die Umgebung austreten. Das Entgasungsprinzip entspricht dabei prinzipiell demjenigen, welches ausführlich in EP 0 933 109 B1 der Anmelderin beschrieben ist.Thus, according to the invention, a conventional pump, for example a heating pump, can be used in principle, in which case the pump housing may be made somewhat larger in order to achieve a good degassing result. This pump is additionally equipped with a nozzle in the pump inlet and with a control device that controls the drive motor of the pump so that a temporary negative pressure is generated in the pump housing, so that the dissolved gases escape from the pump housing to the environment. The degassing principle corresponds in principle to that which is described in detail in EP 0 933 109 B1 the applicant is described.

Die Steuereinrichtung kann zur Steuerung der Pumpe bzw. des Antriebsmotors der Pumpe auf verschiedene Weise arbeiten bzw. verschiedene physikalische Größen erfassen und berücksichtigen.The control device can operate in different ways to control the pump or the drive motor of the pump or to record and take into account different physical quantities.

So ist nach einer ersten Ausgestaltung bevorzugt vorgesehen, dass die Entgasungseinrichtung außerdem einen im Pumpengehäuse angeordneten Drucksensor aufweist, der mit der Steuereinrichtung verbunden ist. Der Antriebsmotor wird dann von der Steuereinrichtung in Abhängigkeit von den jeweils im Pumpengehäuse herrschenden Druckverhältnissen ein- oder ausgeschaltet.Thus, according to a first embodiment, it is preferably provided that the degassing device also has a pressure sensor arranged in the pump housing, which is connected to the control device. The drive motor is then switched on or off by the control device as a function of the prevailing pressure conditions in the pump housing.

Zusätzlich oder alternativ kann die Entgasungseinrichtung außerdem einen im Pumpengehäuse angeordneten Füllstandssensor aufweisen, der mit der Steuereinrichtung verbunden ist. In Abhängigkeit vom Füllstand im Pumpengehäuse wird dann ebenfalls der Antriebsmotor von der Steuereinrichtung ein- oder ausgeschaltet.Additionally or alternatively, the degassing device may further comprise a level sensor arranged in the pump housing, which is connected to the control device. Depending on the level in the pump housing, the drive motor is then also switched on or off by the control device.

Um auf zusätzliche Sensoren verzichten zu können, kann alternativ oder zusätzlich auch vorgesehen sein, dass die Steuereinrichtung zum Zeitintervall gesteuerten Antrieb des Antriebsmotors ausgebildet ist, d.h. nach einem vorgegebenen Zeitintervall wird von der Steuereinrichtung automatisch der Antriebsmotor der Pumpe ein- bzw. ausgeschaltet.In order to dispense with additional sensors, it may alternatively or additionally also be provided that the control device is designed for the time interval-controlled drive of the drive motor, i. After a predetermined time interval, the control device automatically switches the drive motor of the pump on or off.

Zur Lösung der eingangs gestellten Aufgabe sieht die Erfindung auch ein Verfahren zur Förderung und Entgasung einer Flüssigkeit, insbesondere von in Wasser gelösten Gasen, in einer Pumpe vor, in die über einen Pumpeneinlass die Flüssigkeit in das Pumpengehäuse eintritt und aus der über einen Pumpenauslass die Flüssigkeit aus dem Pumpengehäuse austritt, wobei die Zuführung über wenigstens eine im Pumpeneinlass angeordneten Düse erfolgt, wobei im Pumpengehäuse durch ein mit einem Antriebsmotor verbundenes Pumpenrad ein Unterdruck erzeugt wird, wobei der Antriebsmotor von einer Steuereinrichtung so angesteuert wird, dass bedingt durch die Abstimmung zwischen dem Antriebsmotor und der Düse stromabwärts der Pumpe eine größere Menge an Flüssigkeit aus dem Pumpengehäuse durch den Pumpenauslass austritt, als durch den Pumpeneinlass hinzufließt, wobei die Steuereinrichtung den Antriebsmotor der Pumpe nach dem Absaugen der Flüssigkeit solange abschaltet, bis genügend Flüssigkeit durch den Pumpeneinlass in das Pumpengehäuse nachgeflossen ist und die Gase aus dem Pumpengehäuse durch eine Entgasungsöffnung gedrückt worden sind.In order to achieve the object stated at the outset, the invention also provides a method for conveying and degassing a liquid, in particular gases dissolved in water, in a pump into which the liquid enters the pump housing via a pump inlet and from which the liquid via a pump outlet emerges from the pump housing, wherein the supply takes place via at least one nozzle arranged in the pump inlet, wherein in the pump housing by a pump connected to a drive motor, a negative pressure is generated, wherein the drive motor is controlled by a control device so that due to the coordination between the drive motor and the nozzle downstream of the pump exhausts a greater amount of liquid from the pump housing through the pump outlet than flows through the pump inlet, the controller shutting off the drive motor of the pump after aspirating the liquid until sufficient liquid is reached fluid has flowed through the pump inlet into the pump housing and the gases have been forced out of the pump housing through a degassing opening.

Wie vorerwähnt kann die Steuereinrichtung den Antriebsmotor der Pumpe in Abhängigkeit verschiedener physikalischer Größen steuern.As mentioned above, the controller may control the drive motor of the pump in response to various physical quantities.

So ist nach einer ersten Ausgestaltung bevorzugt vorgesehen, dass die Steuereinrichtung den Antriebsmotor der Pumpe in Abhängigkeit vom Druck im Pumpengehäuse steuert.Thus, according to a first embodiment, it is preferably provided that the control device controls the drive motor of the pump as a function of the pressure in the pump housing.

Zusätzlich oder alternativ kann die Steuereinrichtung den Antriebsmotor der Pumpe auch in Abhängigkeit vom Füllstand im Pumpengehäuse steuern.Additionally or alternatively, the control device can also control the drive motor of the pump as a function of the fill level in the pump housing.

Auf einfachste Weise kann, ohne dass zusätzliche Sensoren erforderlich sind, die Steuereinrichtung den Antriebsmotor der Pumpe auch nach einem vorgegebenen Zeitintervall ein- und ausschalten.In the simplest way, without additional sensors are required, the control device, the drive motor of the pump and after a predetermined time interval on and off.

Die Erfindung ist nachstehend anhand der Zeichnung beispielhaft näher erläutert. Diese zeigt in der einzigen Figur eine erfindungsgemäße Pumpe.The invention is explained in more detail below by way of example with reference to the drawing. This shows in the single figure a pump according to the invention.

Eine Pumpe zur Förderung und Entgasung einer Flüssigkeit ist in der Zeichnung allgemein mit 1 bezeichnet. Diese Pumpe 1 weist ein Pumpengehäuse 2 mit einem in diesem befindlichen nicht dargestellten Pumpenrad auf, welches von einem mit dem Pumpengehäuse 2 verbundenen Antriebsmotor 3 antreibbar ist.A pump for conveying and degassing a liquid is indicated generally at 1 in the drawing. This pump 1 has a pump housing 2 with an impeller, not shown, which can be driven by a drive motor 3 connected to the pump housing 2.

Das Pumpengehäuse 2 ist mit einem Pumpeneinlass 4 (Saugseite) und einem Pumpenauslass (Druckseite) versehen, der Innenraum des Pumpengehäuses 2 ist mit 6 bezeichnet.The pump housing 2 is provided with a pump inlet 4 (suction side) and a pump outlet (pressure side), the interior of the pump housing 2 is designated 6.

Erfindungsgemäß ist die Pumpe 1 nicht nur zur Förderung einer Flüssigkeit, sondern auch zur Entgasung derselben ausgebildet, wozu die Pumpe 1 eine Entgasungseinrichtung aufweist. Diese Entgasungseinrichtung umfasst eine im Pumpeneinlass 4 angeordnete Düse 7 und eine nicht dargestellte mit dem Antriebsmotor 3 verbundene Steuereinrichtung. Dabei ist die Düse 7 derart im Pumpeneinlass 4 angeordnet, dass ein Flüssigkeitseintritt in den Innenraum 6 des Pumpengehäuses 2 nur durch die Düse 7 möglich ist.According to the invention, the pump 1 is designed not only for conveying a liquid but also for degassing the same, for which purpose the pump 1 has a degassing device. This degassing device comprises a nozzle 7 arranged in the pump inlet 4 and a control device (not shown) connected to the drive motor 3. In this case, the nozzle 7 is arranged in the pump inlet 4 such that a liquid inlet into the interior 6 of the pump housing 2 is possible only through the nozzle 7.

Die insoweit beschriebene Pumpe 1 unterscheidet sich von einer handelsüblichen Pumpe, z.B. Standardheizungspumpe, abgesehen vom Ablauf der Gestaltung der Steuerung, auf den nachfolgend noch näher eingegangen wird, nur durch die Düse 7 und ein vorzugsweise vergrößertes Pumpengehäuse 2, um im Innenraum 6 einen ausreichend großen Raum zur Entgasung der Flüssigkeit zur Verfügung zu stellen. Die Pumpe 1 kann an geeigneter Stelle z.B. in einem Heizungskreislauf angeordnet werden. Beim dargestellten Ausführungsbeispiel ist der Pumpeneinlass 4 über einen z.B. motorisch betriebenen Kugelhahn 8 mit einem Nachspeiseast 9 und einem Überströmventil 10 verbunden. Der Pumpeneinlass 4 kann aber auch auf andere Weise mit dem Flüssigkeits- bzw. Heizungskreislauf verbunden sein, der Pumpenauslass 5 der Pumpe 1 ist ebenfalls an geeigneter Stelle an den Heizungskreislauf angeschlossen.The pump 1 described so far differs from a commercially available pump, eg standard heating pump, apart from the course of the design of the control, which will be discussed in more detail below, only through the nozzle 7 and a preferably enlarged pump housing 2, in the interior 6 a sufficiently large To provide space for degassing of the liquid. The pump 1 can be arranged at a suitable location, for example in a heating circuit. In the illustrated embodiment, the pump inlet 4 is connected via an example motor-operated ball valve 8 with a Nachspeiseast 9 and a spill valve 10. The pump inlet 4, but may also be connected in other ways with the liquid or heating circuit, the pump outlet 5 of the pump 1 is also connected at a suitable location to the heating circuit.

Die Pumpe 1 weist darüber hinaus eine Entgasungsöffnung 11 auf, die z.B. mit einer Peilrohrentgasung 12 sowie einem Vakuummeter 13 versehen ist.The pump 1 further comprises a vent 11, e.g. is provided with a Peilrohrentgasung 12 and a vacuum gauge 13.

Ferner ist vorzugsweise ein sich in den Innenraum 6 des Pumpengehäuses 2 erstreckender Drucksensor 14 oder alternativ bzw. zusätzlich ein nicht dargestellter Füllstandssensor vorgesehen, der bzw. die Sensoren sind mit der Steuereinrichtung verbunden. Der Füllstand ist in der Zeichnung mit F bezeichnet.Furthermore, a pressure sensor 14 which extends into the interior 6 of the pump housing 2 or, alternatively or additionally, a fill level sensor (not shown) is preferably provided, which or the sensors are connected to the control device. The level is designated F in the drawing.

Die Düse 7 und der Antriebsmotor 3 sind so aufeinander abgestimmt, dass, wenn der Antriebsmotor 3 und damit die Pumpe anläuft, für eine bestimmte Zeit ein Unterdruck im Innenraum 6 des Pumpengehäuses 2 erzeugt wird. Die Flüssigkeit, z.B. Wasser, wird durch die Düse 7 in das Pumpengehäuse 2 eingesprüht und die Gase werden durch den Sprühvorgang und den Unterdruck im Innenraum 6 von der Flüssigkeit getrennt. Anschließend wird von der Steuereinrichtung der Antriebsmotor abgeschaltet, so dass sich im Innenraum 6 des Pumpengehäuses 2 durch den Nachfluss der Flüssigkeit durch den Pumpeneinlass 4 und die Düse 7 wieder normaler statischer Druck einstellt. Dadurch werden die Gase durch die Entgasungsöffnung 11 und die Peilrohrentgasung 12 ausgeschieden.The nozzle 7 and the drive motor 3 are coordinated so that when the drive motor 3 and thus the pump starts, a negative pressure in the interior 6 of the pump housing 2 is generated for a certain time. The liquid, e.g. Water is sprayed through the nozzle 7 in the pump housing 2 and the gases are separated by the spraying process and the negative pressure in the interior 6 of the liquid. The drive motor is then switched off by the control device, so that normal static pressure is restored in the interior 6 of the pump housing 2 as a result of the subsequent flow of the fluid through the pump inlet 4 and the nozzle 7. As a result, the gases are eliminated through the degassing opening 11 and the Peilrohrentgasung 12.

Die Steuereinrichtung kann den Antriebsmotor der Pumpe und damit die Unterdruckerzeugung auf unterschiedliche Weise steuern. So kann die Steuerung in Abhängigkeit vom durch den Drucksensor 14 erfassten Druck im Pumpengehäuse 2 erfolgen oder zusätzlich bzw. alternativ in Abhängigkeit vom Füllstand.The control device can control the drive motor of the pump and thus the vacuum generation in different ways. Thus, the control can take place in dependence on the pressure detected by the pressure sensor 14 in the pump housing 2 or additionally or alternatively depending on the level.

Alternativ kann auch ein Zeitintervall gesteuerter Antrieb vorgesehen sein. Die Pumpe 1 bzw. ihr Antriebsmotor 3 wird dann automatisch zyklisch ein- und ausgeschaltet. Alternatively, a time interval of controlled drive can also be provided. The pump 1 or its drive motor 3 is then automatically cyclically switched on and off.

Claims (8)

  1. Pump for delivering and degassing a liquid, comprising a pump housing (2) with a pump inlet (4) and a pump outlet (5), wherein a pump impeller connected to a drive motor (3) is provided within the pump housing (2) and a nozzle (7) is provided in a degassing device, wherein the degassing device has a control device which is connected to the drive motor (3) and is configured to control the pump so that the pump is switched on and off automatically,
    characterised in that
    the at least one nozzle (7) is arranged in the pump inlet (4), wherein an entry of liquid into an inner space (6) of the pump housing (2) is possible only through the nozzle (7).
  2. Pump according to claim 1,
    characterised in that
    the degassing device also has a pressure sensor (14), which is arranged in the pump housing (2) and is connected to the control device.
  3. Pump according to claim 1 or 2,
    characterised in that
    the degassing device also has a filling level sensor, which is arranged in the pump housing (2) and is connected to the control device.
  4. Pump according to claim 1, 2 or 3,
    characterised in that
    the control device is designed for driving the drive motor (3) under time interval control.
  5. Method for delivering and degassing a liquid, in particular gases dissolved in water, in a pump, in which the liquid enters into the pump housing (2) via a pump inlet (4) and from which the liquid exits from the pump housing (2) via a pump outlet (5), wherein the liquid is supplied only via at least one nozzle (7) arranged in the pump inlet (4), wherein a vacuum is generated in the pump housing (2) by a pump impeller connected to a drive motor (3), wherein the drive motor (3) is driven by a control device in such a way that, as a result of the adaptation between the drive motor (3) and the nozzle (7) downstream of the pump, a greater quantity of liquid exits from the pump housing (2) through the pump outlet (5) than flows in through the pump inlet (4), wherein the control device shuts off the drive motor (3) of the pump after the liquid has been removed by suction until sufficient liquid has flowed in through the pump inlet (4) into the pump housing (2) and the gases have been pushed out of the pump housing (2) through a degassing opening (11).
  6. Method according to claim 5,
    characterised in that
    the control device controls the drive motor (3) of the pump depending on the pressure in the pump housing (2).
  7. Method according to claim 6,
    characterised in that
    the control device controls the drive motor (3) of the pump depending on the filling level in the pump housing (2).
  8. Method according to one or more of claims 5 to 7,
    characterised in that
    the control device switches the drive motor (3) of the pump on and off after a predefined time interval.
EP11763602.7A 2010-10-06 2011-09-28 Pump and method for delivering and degassing a liquid by means of a nozzle in the pump inlet Active EP2625429B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11763602T PL2625429T3 (en) 2010-10-06 2011-09-28 Pump and method for delivering and degassing a liquid by means of a nozzle in the pump inlet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010047698A DE102010047698B4 (en) 2010-10-06 2010-10-06 Pump and method for conveying and degassing a liquid
PCT/EP2011/004838 WO2012045404A1 (en) 2010-10-06 2011-09-28 Pump and method for delivering and degassing a liquid by means of a nozzle in the pump inlet

Publications (2)

Publication Number Publication Date
EP2625429A1 EP2625429A1 (en) 2013-08-14
EP2625429B1 true EP2625429B1 (en) 2019-06-12

Family

ID=44719848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11763602.7A Active EP2625429B1 (en) 2010-10-06 2011-09-28 Pump and method for delivering and degassing a liquid by means of a nozzle in the pump inlet

Country Status (7)

Country Link
EP (1) EP2625429B1 (en)
AU (1) AU2011313610C1 (en)
DE (1) DE102010047698B4 (en)
DK (1) DK2625429T3 (en)
EA (1) EA024016B1 (en)
PL (1) PL2625429T3 (en)
WO (1) WO2012045404A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023203031A1 (en) 2022-04-20 2023-10-26 Grundfos Holding A/S Liquid degassing system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440455A1 (en) * 1990-02-02 1991-08-07 A. Ahlstrom Corporation A method and an apparatus for separating gas from a suspension containing gas

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH130519A (en) * 1927-09-14 1928-12-15 Otto Philipp Centrifugal pump for pumping hot liquids.
GB308442A (en) * 1928-03-02 1929-03-28 Drysdale & Co Ltd Improvements in or relating to centrifugal pumps
US2036713A (en) * 1934-05-10 1936-04-07 Worthington Pump & Mach Corp Pump drain
US2474539A (en) * 1944-02-25 1949-06-28 Goulds Pumps Pumping apparatus
FR1532578A (en) * 1967-05-31 1968-07-12 Chaffoteaux Et Maury Improvements to pumps
GB1360478A (en) * 1971-12-20 1974-07-17 Wilkinson Rubber Linatex Ltd Priming device for pumps
FR2281546A1 (en) * 1974-08-08 1976-03-05 Saunier Duval Degassing appliance for central heating systems - pump housing is retained by degaser housing
JPH03182690A (en) * 1989-12-12 1991-08-08 Mitsubishi Oil Co Ltd Liquid delivery rotary pump with gas removing function
DE9410317U1 (en) * 1994-06-25 1995-10-26 Viessmann Werke Gmbh & Co, 35108 Allendorf Circulation pump
DE29520422U1 (en) * 1995-12-22 1997-04-30 Speck-Pumpenfabrik Walter Speck KG, 91154 Roth Self-priming submersible centrifugal pump
EP0933109B1 (en) * 1998-01-28 2004-03-24 Reflex Winkelmann GmbH + Co. KG Apparatus for de-gasing liquid media
US7578870B2 (en) * 2004-12-17 2009-08-25 Hamilton Sundstrand Corporation Fluid separating device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0440455A1 (en) * 1990-02-02 1991-08-07 A. Ahlstrom Corporation A method and an apparatus for separating gas from a suspension containing gas

Also Published As

Publication number Publication date
DK2625429T3 (en) 2019-08-19
DE102010047698A1 (en) 2012-04-12
AU2011313610A1 (en) 2013-03-21
PL2625429T3 (en) 2019-11-29
EP2625429A1 (en) 2013-08-14
DE102010047698B4 (en) 2012-07-12
WO2012045404A1 (en) 2012-04-12
AU2011313610B2 (en) 2014-10-02
AU2011313610C1 (en) 2015-01-22
EA024016B1 (en) 2016-08-31
EA201300417A1 (en) 2013-09-30

Similar Documents

Publication Publication Date Title
DE69104367T2 (en) DISPENSING METHOD AND DEVICE, ESPECIALLY FOR SEALING / ADHESIVES.
DE19619028C2 (en) Device for cleaning a hydraulic fluid
DE4242242A1 (en) Device for supplying the internal combustion engine of a motor vehicle with fuel present in a storage tank
DE102014113638B4 (en) Device for venting and integrity testing
DE2147147A1 (en) Device for regulating the flow rate of centrifugal pumps
WO2020160916A1 (en) Drainage device for connecting a drinking water system
DE1528657B2 (en) GAS SEPARATOR FOR MOTOR SUBMERSIBLE PUMPS
EP2625429B1 (en) Pump and method for delivering and degassing a liquid by means of a nozzle in the pump inlet
EP0933109B1 (en) Apparatus for de-gasing liquid media
DE68918864T2 (en) Device for injecting an additive into a liquid.
DE10063330B4 (en) System for conducting liquid media and filter device for use in this system
DE1546142A1 (en) Cleaning device for compressor blades or the like.
EP0580881B1 (en) Apparatus for degassing liquids in liquid circuits
DE19913969C1 (en) Air removal from hydraulic fluids by the use of a micro-bubble separator
DE1577536C (en)
DE102006021916A1 (en) Device for degasification and / or pressure maintenance in a closed water cycle
CH579220A5 (en) Motorless pump for reducing ground water level - has housing with valves for water and compressed air pipes
EP1619382A2 (en) Fuel supply device
DE3001150A1 (en) Drainage plant long pressure duct venting - involves fluid spray pump with retainer in air intake preventing waste-water outflow
DE3428534C2 (en)
WO1985000297A1 (en) Process and device for the separation of substances by means of membranes
DE69612620T2 (en) DEVICE FOR SUCTIONING BACK WATER FROM AN EXHAUST PIPE IN CONNECTION WITH A WATER CLEANER
WO2017211980A1 (en) Sampling device for taking beverage samples from a beverage line containing a gaseous beverage under pressure
DE102015210811A1 (en) Device and method for emptying a water separator of a fuel conveyor, and a control device and a workshop tester
DE3218706C2 (en) Drainage pumping station for medium and large flow rates

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20130502

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

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180524

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: 20190219

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: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1142905

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190615

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011015791

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: CH

Ref legal event code: NV

Representative=s name: VALIPAT S.A. C/O BOVARD SA NEUCHATEL, CH

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20190816

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20190612

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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: 20190612

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: 20190612

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: 20190612

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: 20190612

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

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: 20190612

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: 20190912

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: 20190913

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: 20190612

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: 20190612

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: 20190612

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: 20190612

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: 20190612

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: 20191014

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: 20191012

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: 20190612

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011015791

Country of ref document: DE

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: 20190612

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20200313

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: 20190612

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: 20200224

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: 20190612

PG2D Information on lapse in contracting state deleted

Ref country code: IS

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: 20190928

Ref country code: IE

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

Effective date: 20190928

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

Effective date: 20190928

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

Ref country code: GB

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

Effective date: 20190928

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

Ref country code: CY

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

Effective date: 20190612

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

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: 20190612

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: 20110928

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: 20190612

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

Effective date: 20230525

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

Ref country code: NO

Payment date: 20230919

Year of fee payment: 13

Ref country code: AT

Payment date: 20230915

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: 20230921

Year of fee payment: 13

Ref country code: PL

Payment date: 20230918

Year of fee payment: 13

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

Ref country code: IT

Payment date: 20230929

Year of fee payment: 13

Ref country code: CH

Payment date: 20231001

Year of fee payment: 13

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

Ref country code: DE

Payment date: 20240815

Year of fee payment: 14

Ref country code: FI

Payment date: 20240919

Year of fee payment: 14

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

Ref country code: DK

Payment date: 20240920

Year of fee payment: 14

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

Ref country code: BE

Payment date: 20240920

Year of fee payment: 14

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

Ref country code: FR

Payment date: 20240924

Year of fee payment: 14

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

Ref country code: NL

Payment date: 20240920

Year of fee payment: 14