[go: up one dir, main page]

EP3368752A1 - Freezing pressure resistant fluid conveying module - Google Patents

Freezing pressure resistant fluid conveying module

Info

Publication number
EP3368752A1
EP3368752A1 EP16763881.6A EP16763881A EP3368752A1 EP 3368752 A1 EP3368752 A1 EP 3368752A1 EP 16763881 A EP16763881 A EP 16763881A EP 3368752 A1 EP3368752 A1 EP 3368752A1
Authority
EP
European Patent Office
Prior art keywords
fluid
pressure
pressure sensor
pulse damper
pressure pulse
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
EP16763881.6A
Other languages
German (de)
French (fr)
Other versions
EP3368752B1 (en
Inventor
Stephan Kraft
Christoph Waletzek
Jochen Bebion
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3368752A1 publication Critical patent/EP3368752A1/en
Application granted granted Critical
Publication of EP3368752B1 publication Critical patent/EP3368752B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1446—Means for damping of pressure fluctuations in the delivery system, e.g. by puffer volumes or throttling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/148—Arrangement of sensors

Definitions

  • the invention relates to an ei sd jerk-resistant fluid delivery module, in particular an iris pressure-resistant fluid delivery module for promoting a fluid reducing agent, which is used for exhaust aftertreatment.
  • SCR process selective catalytic reduction
  • a reduction catalyst in particular an aqueous urea solution
  • AdBlue aqueous urea solution
  • the reducing agent is taken from a tank by a fluid delivery device (pump) and injected into the exhaust gas flow of the internal combustion engine upstream of the reduction catalytic converter by an injector based on the pump / nozzle principle.
  • a pressure pulse damper is used to accommodate pressure fluctuations that occur during operation of the fluid delivery device.
  • Aqueous urea solution freezes at temperatures below -11 ° C, while the volume increases by about 10%. This volume increase must be compensated within the delivery module to prevent damage to the delivery module by the ice pressure.
  • ice pressure compensation elements are placed at suitable locations within the conveyor module, which are designed to deform in order to absorb the ice pressure.
  • Such Eisscherkompensationsieri as described for example in DE 10 2011 010 640 A1, have a biased and sealed to the outside elastic membrane, which deforms if necessary, to release an additional volume.
  • a delivery module for delivering a fluid in particular for delivering a fluid reducing agent which is used for exhaust aftertreatment, comprises a pressure pulse damper, which is designed to absorb pressure fluctuations of the fluid, and a pressure sensor.
  • the pressure sensor is arranged directly on the pressure pulse damper.
  • the pressure pulse damper comprises a cylindrical area formed about an axis, and the pressure sensor is arranged on the circumference of this cylindrically shaped area.
  • Such a structure allows a particularly compact construction, in which the pressure sensor is arranged directly on the pressure pulse damper.
  • the fluid communication between the pressure sensor and the pressure pulse damper has a constant cross section and no diameter jumps. It is also formed without angles or branches. In this way, it is achieved that the ice pressure arising during the freezing of the fluid can continue unhindered to the pressure pulse damper and can be compensated by this.
  • the pressure sensor is designed to be substantially rotationally symmetrical about a pressure sensor axis, which is aligned essentially at right angles to the axis of the cylinder-shaped region.
  • the wall of the cylindrical portion is at least partially elastic. In this way, the wall of the deform cylindrical portion to accommodate the ice pressure or the increase in volume of the freezing fluid.
  • the wall of the cylindrical portion is at least partially formed of a metal sheet.
  • a metal sheet provides an elastic and durable wall with a long service life.
  • the pressure pulse damper comprises an element that is elastically movable in the axial direction of the cylinder and thereby capable of compensating for pressure fluctuations of the fluid during operation of the delivery module.
  • a fluid channel for supplying and / or discharging fluid extends at a right angle to the longitudinal axis of the cylindrically shaped region. This allows a particularly compact design of the conveyor module.
  • the figure shows a perspective sectional view through a portion of a conveyor module 2 according to an embodiment of the invention, in which a pressure pulse damper 6 and a pressure sensor 14 are arranged.
  • the delivery module 2 comprises a horizontally extending fluid channel 4 which opens into a cavity 5 extending in a vertical direction.
  • the cavity 5 is bounded at its bottom by a web 18 and closed on its upper side by a lid 16 in a fluid-tight manner.
  • a pressure pulse damper 6 is arranged, which is formed substantially cylindrically around an axis A extending in the vertical direction.
  • the pressure pulse damper 6 comprises an outer sleeve, which is formed in particular with an elastic wall 7.
  • the elastic wall 7 is designed as an elastomer grommet or formed of a thin sheet metal, so that it is elastically deformable in the radial direction, ie, in a direction which is aligned transversely to the axis A.
  • a parallel to the axis A movable, piston-shaped pressure compensating element 10 is arranged in the outer sleeve.
  • the pressure compensation element 10 is elastically supported in the outer sleeve by an elastic spring element 8, in particular a spiral spring, which is formed about the axis A. Pressure and volume fluctuations of the fluid in the
  • Fluid channel 4 can therefore be compensated by compressing the elastic spring element 8 and moving the pressure compensation element 10 parallel to the axis A.
  • a flange 12 is laterally formed, in which a pressure sensor 14 is arranged.
  • the pressure sensor 14 is formed substantially rotationally symmetrical about an axis B, which is aligned at a right angle to the axis A of the pressure pulse damper 6.
  • the fluid communication 20 between the inner end face of the pressure sensor 14 facing the pressure pulse damper 6 and the outer circumference of the cylindrical portion of the pressure pulse damper 6 is rectilinear, d. H. without angle, and formed with a constant cross-section.
  • the elastic wall 7 of the cylindrical portion of the pressure pulse damper 6 returns after the thawing of the fluid and the associated volume reduction in a short time back to their original position.
  • the pressure pulse damper 6 is therefore always ready for operation during freezing and thawing operations, which follow each other at short time intervals, and is able to compensate for an increase in volume which occurs when the fluid freezes again.
  • the piston 10 Due to the action of the elastic element 8, the piston 10 also quickly returns to its initial position after the thawing of the fluid and the associated volume reduction. The piston 10 is therefore ready for both pressure pulsation during operation and for volume compensation during a re-freeze cycle.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Fluid Pressure (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The invention relates to a conveying module (2) for conveying a fluid, in particular for conveying a fluid reducing agent for treating exhaust gas, comprising a pressure pulse dampener (6) for compensating pressure fluctuations of the fluid, and a pressure sensor (14) which is arranged directly on the pressure pulse dampener (6).

Description

Eisdruckfestes Fluidfördermodul  Ice-proof fluid delivery module

Die Erfindung betrifft ein ei sd ruckfestes Fluidfördermodul, insbesondere ein eis- druckfestes Fluidfördermodul zur Förderung eines fluiden Reduktionsmittels, das zur Abgasnachbehandlung eingesetzt wird. The invention relates to an ei sd jerk-resistant fluid delivery module, in particular an iris pressure-resistant fluid delivery module for promoting a fluid reducing agent, which is used for exhaust aftertreatment.

Bei Kraftwagen mit Verbrennungsmotoren, insbesondere Dieselmotoren, muss unter anderem der Schadstoff NOx reduziert werden. Eine Methode, die dabei zur Anwendung kommt, ist das Verfahren der sogenannten selektiven katalytischen Reduktion („SCR-Verfahren"), bei dem NOx unter zu Hilfenahme eines Reduktionskatalysators und eines flüssigen Reduktionsmittels, insbesondere einer wässrigen Harnstofflösung („AdBlue" ®), zu N2 und H2O reduziert wird. In motor vehicles with internal combustion engines, especially diesel engines, among other things, the pollutant NO x must be reduced. One method which is used is the process of so-called selective catalytic reduction ("SCR process"), in which NO x with the aid of a reduction catalyst and a liquid reducing agent, in particular an aqueous urea solution ("AdBlue" ®), is reduced to N2 and H2O.

Das Reduktionsmittel wird von einer Fluidfördervorrichtung (Pumpe) aus einem Tank entnommen und von einer Einspritzvorrichtung, die auf dem Pumpe/Düse- Prinzip beruht, stromaufwärts des Reduktionskatalysators in die Abgasströmung des Verbrennungsmotors eingedüst. Zur Aufnahme von Druckschwankungen, die beim Betrieb der Fluidfördervorrichtung auftreten, wird ein Druckpulsdämpfer eingesetzt. The reducing agent is taken from a tank by a fluid delivery device (pump) and injected into the exhaust gas flow of the internal combustion engine upstream of the reduction catalytic converter by an injector based on the pump / nozzle principle. To accommodate pressure fluctuations that occur during operation of the fluid delivery device, a pressure pulse damper is used.

Wässrige Harnstofflösung gefriert bei Temperaturen unter -11 °C, dabei nimmt das Volumen um ca. 10 % zu. Dieser Volumenzuwachs muss innerhalb des Fördermoduls kompensiert werden, um Beschädigungen des Fördermoduls durch den Eisdruck zu verhindern. Aqueous urea solution freezes at temperatures below -11 ° C, while the volume increases by about 10%. This volume increase must be compensated within the delivery module to prevent damage to the delivery module by the ice pressure.

Dazu werden beispielsweise an geeigneten Stellen innerhalb des Fördermoduls Eisdruckkompensationselemente platziert, die ausgebildet sind, sich zu deformieren, um den Eisdruck aufzunehmen. Solche Eisdruckkompensationselemente, wie sie beispielsweise in DE 10 2011 010 640 A1 beschrieben werden, verfügen über eine vorgespannt und nach außen abgedichtete elastische Membran, die sich bei Bedarf verformt, um ein zusätzliches Volumen freizugeben. For this purpose, for example, ice pressure compensation elements are placed at suitable locations within the conveyor module, which are designed to deform in order to absorb the ice pressure. Such Eisdruckkompensationselemente, as described for example in DE 10 2011 010 640 A1, have a biased and sealed to the outside elastic membrane, which deforms if necessary, to release an additional volume.

Es ist wünschenswert, die Eisdruckkompensation zu optimieren und insbesondere den Aufbau eines Fluidmoduls so zu vereinfachen, dass auch ohne den Einsatz von Eisdruckkompensationselementen eine ausreichende Kompensation des Volumenzuwachses gefrierenden Fluids realisiert werden kann. Gemäß einem Ausführungsbeispiel der Erfindung umfasst ein Fördermodul zur Förderung eines Fluids, insbesondere zur Förderung eines fluiden Reduktionsmittels, das zur Abgasnachbehandlung eingesetzt wird, einen Druckpulsdämpfer, der zur Aufnahme von Druckschwankungen des Fluids ausgebildet ist, und einen Drucksensor. Der Drucksensor ist unmittelbar an dem Druckpulsdämpfer angeordnet. It is desirable to optimize the ice pressure compensation and, in particular, to simplify the construction of a fluid module so that sufficient compensation of the volume increase of freezing fluid can be realized even without the use of ice pressure compensation elements. According to one exemplary embodiment of the invention, a delivery module for delivering a fluid, in particular for delivering a fluid reducing agent which is used for exhaust aftertreatment, comprises a pressure pulse damper, which is designed to absorb pressure fluctuations of the fluid, and a pressure sensor. The pressure sensor is arranged directly on the pressure pulse damper.

Durch eine erfindungsgemäße Anordnung des Drucksensors unmittelbar am Druckpulsdämpfer werden die Volumina der Verbindungsleitungen zwischen dem Drucksensor und dem Druckpulsdämpfer auf ein Minimum reduziert. In der Folge wird auch das beim Einfrieren des Fluids zu kompensierende Volumen reduziert, so dass der Volumenzuwachs des gefrierenden Fluids von dem Druckpulsdämpfer aufgenommen werden kann. An inventive arrangement of the pressure sensor directly on the pressure pulse damper, the volumes of the connecting lines between the pressure sensor and the pressure pulse damper are reduced to a minimum. As a result, the volume to be compensated for freezing the fluid is also reduced, so that the volume increase of the freezing fluid can be absorbed by the pressure pulse damper.

Auf ein zusätzliches Eisdruckkompensationselement kann daher verzichtet werden. Der Aufbau der Fördermoduls wird vereinfacht, und das Fördermodul kann kostengünstig hergestellt werden. An additional Eisdruckkompensationselement can therefore be dispensed with. The structure of the conveyor module is simplified, and the conveyor module can be produced inexpensively.

In einem Ausführungsbeispiel umfasst der Druckpulsdämpfer einen zylinderförmig um eine Achse ausgebildeten Bereich, und der Drucksensor ist am Umfang dieses zylinderförmig ausgebildeten Bereichs angeordnet. Eine solche Struktur ermöglicht einen besonders kompakten Aufbau, bei dem der Drucksensor unmittelbar am Druckpulsdämpfer angeordnet ist. In one embodiment, the pressure pulse damper comprises a cylindrical area formed about an axis, and the pressure sensor is arranged on the circumference of this cylindrically shaped area. Such a structure allows a particularly compact construction, in which the pressure sensor is arranged directly on the pressure pulse damper.

In einem Ausführungsbeispiel weist die Fluidverbindung zwischen dem Drucksensor und dem Druckpulsdämpfer einen konstanten Querschnitt und keine Durchmessersprünge auf. Sie ist auch ohne Winkel oder Abzweigungen ausgebildet. Auf diese Weise wird erreicht, dass sich der beim Gefrieren des Fluids entstehende Eisdruck ungehindert zum Druckpulsdämpfer fortsetzen und von diesem kompensiert werden kann. In one embodiment, the fluid communication between the pressure sensor and the pressure pulse damper has a constant cross section and no diameter jumps. It is also formed without angles or branches. In this way, it is achieved that the ice pressure arising during the freezing of the fluid can continue unhindered to the pressure pulse damper and can be compensated by this.

In einem Ausführungsbeispiel ist der Drucksensor im Wesentlichen rotationssymmetrisch um eine Drucksensorachse ausgebildet, die im Wesentlichen rechtwinklig zur Achse des zylinderförmig ausgebildeten Bereichs ausgerichtet ist. In one exemplary embodiment, the pressure sensor is designed to be substantially rotationally symmetrical about a pressure sensor axis, which is aligned essentially at right angles to the axis of the cylinder-shaped region.

In einem Ausführungsbeispiel ist die Wand des zylindrischen Bereichs wenigstens teilweise elastisch ausgebildet. Auf diese Weise kann sich die Wand des zylindrischen Bereichs deformieren, um den Eisdruck bzw. den Volumenzuwachs des gefrierenden Fluids aufzunehmen. In one embodiment, the wall of the cylindrical portion is at least partially elastic. In this way, the wall of the deform cylindrical portion to accommodate the ice pressure or the increase in volume of the freezing fluid.

In einem Ausführungsbeispiel ist die Wand des zylindrischen Bereichs wenigstens teilweise aus einem Metallblech ausgebildet. Durch ein Metallblech wird eine elastische und zugleich widerstandsfähige Wand mit hoher Lebensdauer zur Verfügung gestellt. In one embodiment, the wall of the cylindrical portion is at least partially formed of a metal sheet. A metal sheet provides an elastic and durable wall with a long service life.

In einem Ausführungsbeispiel umfasst der Druckpulsdämpfer ein Element, das in der Axialrichtung des Zylinders elastisch beweglich und dadurch in der Lage ist, Druckschwankungen des Fluids im Betrieb des Fördermoduls zu kompensieren. In one embodiment, the pressure pulse damper comprises an element that is elastically movable in the axial direction of the cylinder and thereby capable of compensating for pressure fluctuations of the fluid during operation of the delivery module.

In einem Ausführungsbeispiel erstreckt sich ein Fluidkanal zum Zu- und/oder Abführen von Fluid in einem rechten Winkel zur Längsachse des zylinderförmig ausgebildeten Bereichs. Dies ermöglicht einen besonders kompakten Aufbau des Fördermoduls. In one embodiment, a fluid channel for supplying and / or discharging fluid extends at a right angle to the longitudinal axis of the cylindrically shaped region. This allows a particularly compact design of the conveyor module.

Figurenbeschreibung: Brief Description:

Die Figur zeigt eine perspektivische Schnittansicht durch einen Bereich eines Fördermoduls 2 gemäß einem Ausführungsbeispiel der Erfindung, in dem ein Druckpulsdämpfer 6 und ein Drucksensor 14 angeordnet sind. The figure shows a perspective sectional view through a portion of a conveyor module 2 according to an embodiment of the invention, in which a pressure pulse damper 6 and a pressure sensor 14 are arranged.

Das Fördermodul 2 umfasst einen sich in horizontaler Richtung erstreckenden Fluidkanal 4, der sich in einen Hohlraum 5 öffnet, der sich in einer vertikalen Richtung erstreckt. Der Hohlraum 5 ist an seinem Boden durch einen Steg 18 begrenzt und auf seiner Oberseite durch einen Deckel 16 fluiddicht verschlossen. The delivery module 2 comprises a horizontally extending fluid channel 4 which opens into a cavity 5 extending in a vertical direction. The cavity 5 is bounded at its bottom by a web 18 and closed on its upper side by a lid 16 in a fluid-tight manner.

In dem Hohlraum 5 ist ein Druckpulsdämpfer 6 angeordnet, der im Wesentlichen zylinderförmig um eine sich in vertikaler Richtung erstreckende Achse A ausgebildet ist. In the cavity 5, a pressure pulse damper 6 is arranged, which is formed substantially cylindrically around an axis A extending in the vertical direction.

Der Druckpulsdämpfer 6 umfasst eine äußere Hülse, die insbesondere mit einer elastischen Wand 7 ausgebildet ist. Die elastische Wand 7 ist als Elastomere- Tülle ausgeführt oder aus einem dünnem Metallblech geformt, so dass sie in radialer Richtung, d. h., in einer Richtung, die quer zur Achse A ausgerichtet ist, elastisch deformierbar ist. In der äußeren Hülse ist ein parallel zur Achse A bewegliches, kolbenförmig ausgebildetes Druckkompensationselement 10 angeordnet. Das Druckkompensationselement 10 ist durch ein elastisches Federelement 8, insbesondere eine Spiralfeder, die um die Achse A ausgebildet ist, elastisch in der äußeren Hülse abgestützt. Druck- und Volumenschwankungen des Fluids imThe pressure pulse damper 6 comprises an outer sleeve, which is formed in particular with an elastic wall 7. The elastic wall 7 is designed as an elastomer grommet or formed of a thin sheet metal, so that it is elastically deformable in the radial direction, ie, in a direction which is aligned transversely to the axis A. In the outer sleeve, a parallel to the axis A movable, piston-shaped pressure compensating element 10 is arranged. The pressure compensation element 10 is elastically supported in the outer sleeve by an elastic spring element 8, in particular a spiral spring, which is formed about the axis A. Pressure and volume fluctuations of the fluid in the

Fluidkanal 4 können daher durch Komprimieren des elastischen Federelements 8 und Bewegen des Druckkompensationselements 10 parallel zur Achse A kompensiert werden. An dem Hohlraum 5, in dem der Druckpulsdämpfers 6 angeordnet ist, ist seitlich ein Flansch 12 ausgebildet, in dem ein Drucksensor 14 angeordnet ist. Fluid channel 4 can therefore be compensated by compressing the elastic spring element 8 and moving the pressure compensation element 10 parallel to the axis A. On the cavity 5, in which the pressure pulse damper 6 is arranged, a flange 12 is laterally formed, in which a pressure sensor 14 is arranged.

Der Drucksensor 14 ist im Wesentlichen rotationssymmetrisch um eine Achse B ausgebildet, die in einem rechten Winkel zurAchse A des Druckpulsdämpfers 6 ausgerichtet ist. The pressure sensor 14 is formed substantially rotationally symmetrical about an axis B, which is aligned at a right angle to the axis A of the pressure pulse damper 6.

Die Fluidverbindung 20 zwischen der dem Druckpulsdämpfer 6 zugewandten inneren Stirnseite des Drucksensors 14 und dem äußeren Umfang des zylindrischen Bereichs des Druckpulsdämpfers 6 ist geradlinig, d. h. ohne Winkel, und mit einem konstanten Querschnitt ausgebildet. The fluid communication 20 between the inner end face of the pressure sensor 14 facing the pressure pulse damper 6 and the outer circumference of the cylindrical portion of the pressure pulse damper 6 is rectilinear, d. H. without angle, and formed with a constant cross-section.

Wenn sich das Fluid, dass sich in diesem Bereich zwischen dem Drucksensor 14 und dem Druckpulsdämpfer 6 befindet, beim Gefrieren ausdehnt, wird die Zunahme seines Volumens dadurch ausgeglichen, dass sich die elastische Wand 7 des zylindrischen Bereichs des Druckpulsdämpfers 6 in radialer Richtung deformiert und auf diese Weise im Hohlraum 5 zusätzliches Volumen für das sich ausdehnende Fluid freigibt. When the fluid, which is in this area between the pressure sensor 14 and the pressure pulse damper 6, expands upon freezing, the increase in its volume is compensated for by the elastic wall 7 of the cylindrical portion of the pressure pulse damper 6 deforming and deforming in the radial direction this way in the cavity 5 additional volume for the expanding fluid releases.

Dadurch, dass sich der Drucksensor 14 in unmittelbarer Nähe des Druckpuls- dämpfers 6 befindet, ist das Volumen des Fluids, das sich zwischen dem Drucksensor 14 und dem Druckpulsdämpfer 6 befindet, auf ein Minimum reduziert. Auf diese Weise wird auch die beim Gefrieren des Fluids zu kompensierende Zunahme des Volumens reduziert, so dass ein relativ geringes Kompensationsvolumen ausreicht, um die Volumenzunahme des gefrierenden Fluids vollständig zu kompensieren. The fact that the pressure sensor 14 is in the immediate vicinity of the Druckpuls- damper 6, the volume of fluid, which is located between the pressure sensor 14 and the pressure pulse damper 6, is reduced to a minimum. In this way, the increase in volume to be compensated for when freezing the fluid is also reduced, so that a relatively small compensating volume is sufficient to completely compensate for the volume increase of the freezing fluid.

Aufgrund ihrer elastischen Eigenschaften kehrt die elastische Wand 7 des zylindrischen Bereichs des Druckpulsdämpfers 6 nach dem Auftauen des Fluids und der damit verbundenen Volumenreduktion in kurzer Zeit in ihre Ausgangslage zurück. Der Druckpulsdämpfer 6 ist daher auch bei Einfrier- und Auftauvorgängen, die in kurzen zeitlichen Abständen aufeinander folgenden, stets betriebsbereit und in der Lage, eine bei einem erneuten Einfrieren des Fluids auftretende Volumenzunahme zu kompensieren. Due to its elastic properties, the elastic wall 7 of the cylindrical portion of the pressure pulse damper 6 returns after the thawing of the fluid and the associated volume reduction in a short time back to their original position. The pressure pulse damper 6 is therefore always ready for operation during freezing and thawing operations, which follow each other at short time intervals, and is able to compensate for an increase in volume which occurs when the fluid freezes again.

Zusätzlich zur beschriebenen radialen Deformation der elastischen Wand 7 kann durch eine axiale Bewegung des Kolbens 10 entlang der Achse A des Druckpulsdämpfers 6 eine weitere Volumenzunahme des Fluids, das sich im Fluidkanal 4 und/oder im Hohlraum 5 befindet, kompensiert werden. In addition to the described radial deformation of the elastic wall 7 can be compensated by an axial movement of the piston 10 along the axis A of the pressure pulse damper 6, a further volume increase of the fluid, which is located in the fluid channel 4 and / or in the cavity 5.

Aufgrund der Einwirkung des elastischen Elements 8 kehrt auch der Kolben 10 nach dem Auftauen des Fluids und der damit verbundenen Volumenreduktion schnell in seine Ausgangslage zurück. Der Kolben 10 steht daher sowohl zur Druckpulsdämpfung im Betrieb als auch zur Volumenkompensation während eines erneuten Gefrierzyklus bereit. Due to the action of the elastic element 8, the piston 10 also quickly returns to its initial position after the thawing of the fluid and the associated volume reduction. The piston 10 is therefore ready for both pressure pulsation during operation and for volume compensation during a re-freeze cycle.

Claims

Patentansprüche claims 1 . Fördermodul (2) zur Förderung eines Fluids, insbesondere zur 1 . Delivery module (2) for conveying a fluid, in particular for Förderung eines fluiden Reduktionsmittels zur Abgasnachbehandlung, mit einem Druckpulsdämpfer (6), der zur Kompensation von Druckschwankungen des Fluids ausgebildet ist; und einem Drucksensor (14), der unmittelbar an dem Druckpulsdämpfer (6) angeordnet ist. Promoting a fluid reducing agent for exhaust aftertreatment, comprising a pressure pulse damper (6), which is designed to compensate for pressure fluctuations of the fluid; and a pressure sensor (14) disposed directly on the pressure pulse damper (6). 2. Fördermodul (2) nach Anspruch 1 , wobei der Druckpulsdämpfer (6) einen zylinderförmig um eine Achse (A) ausgebildeten Bereich umfasst und der Drucksensor (14) am Umfang des zylinderförmig ausgebildeten Bereichs angeordnet ist. Second conveyor module (2) according to claim 1, wherein the pressure pulse damper (6) comprises a cylindrical about an axis (A) formed region and the pressure sensor (14) is arranged on the circumference of the cylindrically shaped region. 3. Fördermodul (2) nach Anspruch 2, wobei der Drucksensor (14) im Wesentlichen rotationssymmetrisch um eine Drucksensorachse (B) ausgebildet ist, und die Drucksensorachse (B) im Wesentlichen rechtwinklig zur Achse (A) des zylinderförmig ausgebildeten Bereichs ausgerichtet ist. Third delivery module (2) according to claim 2, wherein the pressure sensor (14) is formed substantially rotationally symmetrical about a pressure sensor axis (B), and the pressure sensor axis (B) is aligned substantially perpendicular to the axis (A) of the cylindrically shaped region. 4. Fördermodul (2) nach Anspruch 2 oder 3, wobei die Wand (7) des zylindrischen Bereichs wenigstens teilweise elastisch ausgebildet ist. 4. conveyor module (2) according to claim 2 or 3, wherein the wall (7) of the cylindrical portion is at least partially elastic. 5. Fördermodul (2) nach Anspruch 4, wobei die Wand (7) des zylindrischen Bereichs wenigstens teilweise aus einem Elastomer oder einem Metallblech ausgebildet ist. 5. conveyor module (2) according to claim 4, wherein the wall (7) of the cylindrical portion is at least partially formed of an elastomer or a metal sheet. 6. Fördermodul (2) nach einem der Ansprüche 2 bis 5, wobei der Druckpulsdämpfer (6) ein in der Axialrichtung des zylinderförmig ausgebildeten Bereichs elastisch bewegliches Element (10) umfasst. 6. conveying module (2) according to one of claims 2 to 5, wherein the pressure pulse damper (6) comprises a in the axial direction of the cylindrically shaped portion elastically movable element (10). 7. Fördermodul (2) nach einem der Ansprüche 2 bis 6, wobei sich ein Fluidkanal (4) in einem rechten Winkel zur Längsachse des zylinderförmig ausgebildeten Bereichs erstreckt. 7. conveying module (2) according to one of claims 2 to 6, wherein a fluid channel (4) extends at a right angle to the longitudinal axis of the cylindrically shaped region. 8. Fördermodul (2) nach einem der vorangehenden Ansprüche, wobei die Fluidverbindung (20) zwischen dem Drucksensor (14) und dem Druckpulsdämpfer (6) geradlinig ausgebildet ist. 8. conveying module (2) according to one of the preceding claims, wherein the fluid connection (20) between the pressure sensor (14) and the pressure pulse damper (6) is formed in a straight line. 9. Fördermodul (2) nach einem der vorangehenden Ansprüche, wobei die9. conveyor module (2) according to one of the preceding claims, wherein the Fluidverbindung (20) zwischen dem Drucksensor (14) und dem Druckpulsdämpfer (6) einen konstanten Querschnitt aufweist. Fluid connection (20) between the pressure sensor (14) and the pressure pulse damper (6) has a constant cross-section.
EP16763881.6A 2015-10-27 2016-09-14 Freezing pressure resistant fluid conveying module Active EP3368752B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015220957.1A DE102015220957A1 (en) 2015-10-27 2015-10-27 Ice-proof fluid delivery module
PCT/EP2016/071706 WO2017071875A1 (en) 2015-10-27 2016-09-14 Freezing pressure resistant fluid conveying module

Publications (2)

Publication Number Publication Date
EP3368752A1 true EP3368752A1 (en) 2018-09-05
EP3368752B1 EP3368752B1 (en) 2019-07-24

Family

ID=56920732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16763881.6A Active EP3368752B1 (en) 2015-10-27 2016-09-14 Freezing pressure resistant fluid conveying module

Country Status (3)

Country Link
EP (1) EP3368752B1 (en)
DE (1) DE102015220957A1 (en)
WO (1) WO2017071875A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10004614A1 (en) * 2000-02-03 2001-08-16 Siemens Ag Pressure sensor for detecting the pressure of a liquid
DE10058015A1 (en) * 2000-11-23 2002-05-29 Bosch Gmbh Robert metering valve
DE10361867B4 (en) * 2003-12-29 2006-05-24 Hydraulik-Ring Gmbh exhaust treatment device
DE102007004687B4 (en) * 2007-01-25 2012-03-01 Hydraulik-Ring Gmbh Volume quantity dispensing unit and method for calibrating the pressure output signal volume quantity characteristic
DE102011010640A1 (en) 2011-02-09 2012-08-09 Emitec France S.A.S Feed unit for conveying reducing agent
DE102012010980A1 (en) * 2012-06-02 2013-12-05 Hydac Electronic Gmbh System for exhaust aftertreatment in internal combustion engines

Also Published As

Publication number Publication date
EP3368752B1 (en) 2019-07-24
WO2017071875A1 (en) 2017-05-04
DE102015220957A1 (en) 2017-04-27

Similar Documents

Publication Publication Date Title
DE102012223028B4 (en) Device for dampening pressure fluctuations in a fluid
DE10147172C2 (en) Reducing agent pump for an exhaust gas aftertreatment system of an internal combustion engine
EP2157295B1 (en) Metering system for a fluid medium, in particular urea-water solution
WO2011064076A1 (en) Method for operating a conveying device for a reducing agent
EP1380733A2 (en) Device for exhaust gas treatment of vehicle, especially for diesel engine vehicle
EP2165053A1 (en) Device for the metered injection of a liquid processing agent for exhaust gases
DE102010031660A1 (en) Method for operating dosing system for selective catalytic reduction catalyst converter of combustion engine of e.g. car, involves opening relief valve and dosing module after termination of dosing process
EP3325782B1 (en) Injection valve, exhaust-gas aftertreatment system
DE102010031651A1 (en) Device for dosing i.e. aqueous urea solution, into selective catalytic reduction catalyst in exhaust gas region of combustion engine in motor car, has stop valve arranged upstream to dosing valve and controllable by signal of control device
DE102012223033A1 (en) Device for damping pressure fluctuations of pump, has compensation element and wall of cavity that are shaped, such that compensation element applies pressure to wall of cavity, when pressure is applied to compensating element
DE102016218497A1 (en) Reductant supply system for exhaust aftertreatment
DE102010063201B4 (en) Line element for conveying a liquid or gaseous medium and exhaust gas aftertreatment arrangement
DE10349143B4 (en) dosing
EP3368752B1 (en) Freezing pressure resistant fluid conveying module
EP2867485B1 (en) Exhaust treatment system for combustion engines
DE102011090070A1 (en) Exhaust gas treatment device for selective catalytic reduction of nitrogen oxides contained in exhaust gases of engine, has shut-off valve arranged in pressure line between feed pump and metering unit
DE102011087856B4 (en) Damping element and arrangement for dosing a liquid with a damping element
DE102014214886B4 (en) Double-acting check valve
DE102019208139A1 (en) Device for compensating for a change in volume of a fluid during a phase transition from liquid to solid, filter and delivery module each with such a device
DE102012223038A1 (en) Device for damping pressure fluctuation and receiving ice pressure in e.g. aqueous urea solution, has pulsation damper assembly that is provided with support element arranged inside cavity to support elastically deformable membrane
EP2294294B1 (en) Dosing system for a liquid medium, particularly a urea-water solution
DE102012223009A1 (en) Device for damping pressure fluctuations in fluid, has damping element which is arranged on side of compensation element, so that deformation of compensation element is reformed under force effect of damping element on compensation element
DE102017218755A1 (en) Measuring device for determining the quality of a liquid reducing agent
EP3455475B1 (en) Device and method for improving the backsuctionability of reduction agent in an exhaust gas reduction system
DE102007039424A1 (en) Reducing agent supply system for exhaust gas after-treatment device in internal-combustion engine i.e. diesel engine, has extension element that is formed as folded bellow element and integrated into reducing agent line

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

Free format text: ORIGINAL CODE: 0009012

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180528

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
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: 20190410

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: DE

Ref legal event code: R096

Ref document number: 502016005722

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1158458

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190815

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: NL

Ref legal event code: MP

Effective date: 20190724

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: 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: 20191024

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: 20190724

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: 20191125

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: 20190724

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: 20190724

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: 20191024

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: 20190724

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: 20190724

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: 20191025

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: 20191124

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: 20190724

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: 20190724

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: 20190724

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: 20190724

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: 20190724

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ROBERT BOSCH GMBH

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

Ref country code: IT

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

Effective date: 20190724

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: 20190724

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: 20190724

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: 20190724

Ref country code: PL

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

Effective date: 20190724

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

Ref country code: CZ

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

Effective date: 20190724

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: 20190724

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: 20190724

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: 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: 20190724

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502016005722

Country of ref document: DE

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

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: IE

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

Effective date: 20190914

Ref country code: CH

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

Effective date: 20190930

Ref country code: LI

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

Effective date: 20190930

Ref country code: LU

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

Effective date: 20190914

26N No opposition filed

Effective date: 20200603

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190930

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: 20190724

Ref country code: BE

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

Effective date: 20190930

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

Effective date: 20200914

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: 20190724

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: 20160914

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: 20190724

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: 20200914

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: 20190724

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1158458

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210914

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: 20210914

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

Ref country code: FR

Payment date: 20230918

Year of fee payment: 8

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

Ref country code: FR

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

Effective date: 20240930

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

Ref country code: DE

Payment date: 20251121

Year of fee payment: 10