EP3670857A1 - Mélange efficace de gaz dans un système post-traitement d'échappement - Google Patents

Mélange efficace de gaz dans un système post-traitement d'échappement Download PDF

Info

Publication number
EP3670857A1
EP3670857A1 EP18214589.6A EP18214589A EP3670857A1 EP 3670857 A1 EP3670857 A1 EP 3670857A1 EP 18214589 A EP18214589 A EP 18214589A EP 3670857 A1 EP3670857 A1 EP 3670857A1
Authority
EP
European Patent Office
Prior art keywords
inlet
exhaust
scr
tube
section
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
EP18214589.6A
Other languages
German (de)
English (en)
Other versions
EP3670857B1 (fr
Inventor
Samrendra Singh
Panos Tamamidis
Lode A. Demonie
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.)
CNH Industrial Belgium NV
Original Assignee
CNH Industrial Belgium NV
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 CNH Industrial Belgium NV filed Critical CNH Industrial Belgium NV
Priority to EP18214589.6A priority Critical patent/EP3670857B1/fr
Publication of EP3670857A1 publication Critical patent/EP3670857A1/fr
Application granted granted Critical
Publication of EP3670857B1 publication Critical patent/EP3670857B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F01N13/0093—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are of the same type
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • 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
    • F01N2470/00—Structure or shape of exhaust gas passages, pipes or tubes
    • F01N2470/18—Structure or shape of exhaust gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus

Definitions

  • the present invention relates to exhaust systems for internal combustion engines, and more particularly to a system for decomposing reductant and mixing together reductant and exhaust gas in a selective catalytic reduction (SCR) catalyst device of an exhaust aftertreatment system.
  • SCR selective catalytic reduction
  • Exhaust aftertreatment systems receive and treat exhaust gas generated from an internal combustion engine such as a diesel engine.
  • Typical exhaust aftertreatment systems include any of various devices configured to reduce the level of harmful exhaust emissions present in the exhaust gas.
  • Some exhaust aftertreatment systems for diesel powered internal combustion engines include various devices, such as a diesel oxidation catalyst (DOC), particulate matter filter or diesel particulate filter (DPF), and a selective catalytic reduction (SCR) catalyst device.
  • DOC diesel oxidation catalyst
  • DPF diesel particulate matter filter
  • SCR selective catalytic reduction
  • exhaust gas first passes through the diesel oxidation catalyst, then passes through the diesel particulate filter, and subsequently passes through the SCR catalyst.
  • Each of the DOC, DPF, and SCR catalyst devices is configured to perform a particular exhaust emissions treatment operation on the exhaust gas passing through the devices.
  • the DOC reduces the amount of carbon monoxide and hydrocarbons present in the exhaust gas via oxidation techniques.
  • the DPF filters harmful diesel particulate matter and soot present in the exhaust gas.
  • the SCR catalyst device reduces the amount of nitrogen oxides (NOx) present in the exhaust gas.
  • the SCR catalyst device is configured to reduce NOx into less harmful emissions, such as N2 and H2O, in the presence of ammonia (NH3). Because ammonia is not a natural byproduct of the combustion process, it must be artificially introduced into the exhaust gas prior to the exhaust gas entering the SCR catalyst device. Typically, ammonia is not directly injected into the exhaust gas due to safety considerations associated with the storage of liquid ammonia. Accordingly, conventional systems are designed to inject a urea-water solution, or diesel exhaust fluid (DEF) into the exhaust gas, which is capable of decomposing into ammonia in the presence of the exhaust gas. SCR systems typically include a urea source and a urea injector or doser coupled to the source and positioned upstream of the SCR catalyst device.
  • a urea source and a urea injector or doser coupled to the source and positioned upstream of the SCR catalyst device.
  • the decomposition of the urea-water solution into gaseous ammonia occupies three stages.
  • the ammonia is then introduced at or near the inlet face of the SCR catalyst device, flows through the catalyst, and is consumed in the NOx reduction process. Any unconsumed ammonia exiting the SCR system can be reduced to N 2 and other less harmful or less noxious components using an ammonia oxidation catalyst.
  • the injected urea To sufficiently decompose into ammonia, the injected urea must be given adequate time to complete the three stages. The time given to complete the three stages and decompose urea into ammonia before entering the SCR catalyst device is conventionally termed residence time.
  • Some prior art exhaust aftertreatment systems utilize a long tube of a fixed linear decomposition length that extends between the urea injector and SCR catalyst device inlet face. The fixed linear decomposition length of prior art systems must be quite long in order to provide the necessary residence time. Long tubing for urea decomposition often takes up valuable space that could be occupied by other vehicle components and influences the design of the exhaust aftertreatment system. However, shorter decomposition tubes associated with some prior art end-in, end-out and end-in, side-out SCR systems may not provide a sufficiently long residence time to properly evaporate the injected urea.
  • exhaust aftertreatment systems with end-to-end or end-to-side SCR systems fail to adequately distribute exhaust gas across the inlet face of the SCR catalyst device.
  • An uneven distribution of exhaust gas at the SCR catalyst device inlet can result in excessive ammonia slip and less than optimal NOx conversion efficiency.
  • a low exhaust flow distribution index at the SCR catalyst device inlet results in a lower amount of SCR catalyst surface area in contact with the exhaust gases. The lesser the catalyst surface area in contact with the exhaust gases, the lower the NOx reduction efficiency of the SCR catalyst device.
  • the present invention seeks to provide apparatus more completely and uniformly mixing exhaust gas components in an exhaust aftertreatment system.
  • the invention is an inlet for exhaust gases to a selective catalytic reduction (SCR) device having a generally cylindrical or oval cross section shape with a central longitudinal axis.
  • the inlet includes an axially directed inlet radially offset from the central longitudinal axis and having an axially directed upstream end and directing exhaust gases in a tangential direction at its downstream end relative to the central longitudinal axis of the SCR component.
  • the invention is an exhaust aftertreatment system including a selective catalytic reduction (SCR) device having a generally cylindrical or oval cross sectional shape and a central longitudinal axis.
  • SCR selective catalytic reduction
  • a plurality of catalysts are housed within the SCR device for exhaust gas flow therethrough.
  • An inlet is radially offset from the central axis and has an axially directed upstream and directing gases in a tangential direction at its downstream end relative to the central axis of the SCR device.
  • the inlet has a curved section adjacent its downstream outlet for imparting a tangential direction to exhaust the exhaust gases.
  • the inlet is, at least, partially formed from a tube in its upstream end.
  • the curved section is a scroll section extending from the circumference of the tube to impart the tangential component and the tube has an end wall.
  • the inlet has a porous bulkhead between the inlet and the interior of the SCR device.
  • the porosity of the bulkhead is provided by a plurality of generally circular openings.
  • the total area of the openings is approximately _% of the circumferential cross sectional area of the bulkhead.
  • the inlet is combined with an exhaust aftertreatment system having a housing for the SCR device inlet.
  • each catalyst has a separate flow path from the inlet through the housing .for the SCR device.
  • the catalysts are arranged in tandem within the housing for the SCR device.
  • an exhaust aftertreatment system 110 for an agricultural vehicle such as a combine harvester shown schematically as dashed line 111.
  • the aftertreatment system 110 generally includes exhaust pipe sections 112A, 112B, 112C, a first exhaust aftertreatment device 114 coupled to the exhaust pipe section 112 at a connection point 118, and a second exhaust aftertreatment device 120.
  • the agricultural vehicle 111 will include additional internal systems for the separation and handling of collected crop material, but these additional systems are omitted from view for brevity of description. It should be appreciated that the aftertreatment system 110 described and illustrated herein does not necessarily need to be included on combine harvesters, but can be incorporated in other industrial vehicles or agricultural vehicles such as windrowers, tractors, etc.
  • the exhaust pipe 112A may link the exhaust of an engine, shown schematically as 116, to the first aftertreatment device 114, or the exhaust pipe 112 may link multiple aftertreatment devices 114 together.
  • the exhaust pipe section 112B may have an insulation 122 surrounding it.
  • the insulation 122 may extend along a portion or up to the entire length of the exhaust pipe section 112B. As shown, the insulation 122 spans the length of the exhaust pipe 112B and extends approximately up to the connection point 118.
  • the insulation 122 may be in the form of any known insulation that desirably insulates the exhaust pipe section 112B.
  • the aftertreatment device 114 may be coupled to the exhaust pipe 112A in order to reduce nitrous oxides (NOx) and/or diesel particulate matter (DPM).
  • the aftertreatment device 114 may be in the form of an exhaust gas recirculation (EGR) device, a diesel particulate filter (DPF), a selective catalytic reduction (SCR) device, or a catalytic converter such as a diesel oxidation catalyst (DOC).
  • EGR exhaust gas recirculation
  • DPF diesel particulate filter
  • SCR selective catalytic reduction
  • DOC diesel oxidation catalyst
  • the aftertreatment device 114 includes at its outlet section a DEF injection device 124 for injecting diesel exhaust fluid into the exhaust for mixing and reaction with the exhaust stream flowing through exhaust pipe 112B.
  • the resulting gas enters the second exhaust aftertreatment device 120 through the inlet end wall 128 of an outer housing 126 which leads to an outlet end wall 130 connecting with exhaust pipe 112C through connector 118.
  • Exhaust aftertreatment device 120 is an SCR device and it includes a forward SCR catalyst 132 and an aft SCR catalyst 134 oriented in tandem and configured so that parallel exhaust flows pass separately through each of the SCR catalysts 132 and 134. It is important to obtain uniform and complete mixing of DEF with the exhaust gases so that it may allow the systems to properly reduce the oxides of nitrogen. In the event of inadequate mixing or mal-distribution between catalysts 132 and 134, the amount of DEF consumed is increased thereby taking away from the efficiency of the aftertreatment system 110.
  • an inlet 136 is provided for the aftertreatment device 120 to provide efficient and effective mixing in accordance with an aspect of the present invention.
  • FIG. 2 shows a perspective view of the inlet 136 with adjacent and interacting components in dashed lines.
  • Inlet 136 may include a tubular upstream inlet 138 having a central axis B offset from the central axis A of housing 126.
  • Housing 126 may have a circular or oval cross section configuration.
  • Tube 138 extends to a bulkhead 140 separating the interior of housing 126 into a section 139 adjacent the inlet 136 and a section 141 containing SCR catalyst 132 and 134.
  • Bulkhead 140 is perforated by a series of circular openings 142 providing a multiplicity of flows to the SCR catalysts 132 and 134.
  • the relative porosity of the bulkhead 140 may be selected for particular operating conditions and may be up to approximately 45 % of the surface area of the bulkhead 140.
  • the openings may be circular, as shown, or any other shape proving a plurality of flow paths from section 139 to section 141.
  • Tube 138 terminates in an end wall 144, shown as integral with bulkhead 140.
  • a curved scroll section 146 begins at the circumference of tube 138 and extends outward to a point at or adjacent the circumference 143 of the bulkhead 140.
  • the scroll section 146 imparts a tangential direction to a single stream through downstream outlet 148.
  • the scroll section 146 is shown as integral with the tube 138, it may be provided as a separate element.
  • the scroll section may be any one of a number of forms that direct exhaust flow to a tangential direction from the upstream end of tube 138.
  • the tangentially directed exhaust flow through inlet 136 creates a vortex inside the housing 126 resulting in strong shear driven mixing of DEF with the exhaust gas.
  • the DEF is well mixed with the exhaust gas and results less wastage or slippage of the DEF.
  • a benefit resulting from this flow is a uniform distribution and split between the separate exhaust flows directed toward the catalysts 132 and 134.
  • One advantage of the present invention is a more efficient mixing of exhaust gases at the inlet of an SCR device. Another advantage is that the inlet is simplified, compact and has fixed geometry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
EP18214589.6A 2018-12-20 2018-12-20 Mélange efficace de gaz dans un système post-traitement d'échappement Active EP3670857B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18214589.6A EP3670857B1 (fr) 2018-12-20 2018-12-20 Mélange efficace de gaz dans un système post-traitement d'échappement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18214589.6A EP3670857B1 (fr) 2018-12-20 2018-12-20 Mélange efficace de gaz dans un système post-traitement d'échappement

Publications (2)

Publication Number Publication Date
EP3670857A1 true EP3670857A1 (fr) 2020-06-24
EP3670857B1 EP3670857B1 (fr) 2022-08-31

Family

ID=64746432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18214589.6A Active EP3670857B1 (fr) 2018-12-20 2018-12-20 Mélange efficace de gaz dans un système post-traitement d'échappement

Country Status (1)

Country Link
EP (1) EP3670857B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN121593877A (zh) * 2026-01-30 2026-03-03 湘潭大学 一种集成式氢氨发动机尾气氮素污染物热催化转化装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2607641A1 (fr) * 2011-12-19 2013-06-26 Mtu Friedrichshafen Gmbh Dispositif de mélange pour l'introduction d'un agent de réduction dans un flux de gaz d'échappement avec des éléments en forme d'aube
DE102012008556A1 (de) * 2012-04-27 2013-10-31 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Vorrichtung und Verfahren zur Abgasnachbehandlung
US20140318112A1 (en) * 2013-04-29 2014-10-30 GM Global Technology Operations LLC Internal combustion engine and exhaust aftertreatment system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2607641A1 (fr) * 2011-12-19 2013-06-26 Mtu Friedrichshafen Gmbh Dispositif de mélange pour l'introduction d'un agent de réduction dans un flux de gaz d'échappement avec des éléments en forme d'aube
DE102012008556A1 (de) * 2012-04-27 2013-10-31 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Vorrichtung und Verfahren zur Abgasnachbehandlung
US20140318112A1 (en) * 2013-04-29 2014-10-30 GM Global Technology Operations LLC Internal combustion engine and exhaust aftertreatment system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN121593877A (zh) * 2026-01-30 2026-03-03 湘潭大学 一种集成式氢氨发动机尾气氮素污染物热催化转化装置

Also Published As

Publication number Publication date
EP3670857B1 (fr) 2022-08-31

Similar Documents

Publication Publication Date Title
US11193412B2 (en) Automotive exhaust aftertreatment system
EP3030767B1 (fr) Procédé, appareil et système pour post-traitement de gaz d'échappement
US7941995B2 (en) Exhaust aftertreatment system with compliantly coupled sections
US7533520B2 (en) Exhaust aftertreatment mixer with stamped muffler flange
US7712305B2 (en) Exhaust aftertreatment system with spiral mixer
US11465108B2 (en) Dosing and mixing arrangement for use in exhaust aftertreatment
US7748212B2 (en) Exhaust aftertreatment system with flow distribution
US7328572B2 (en) Exhaust aftertreatment device with star-plugged turbulator
EP2861328B1 (fr) Système de mélange et de décomposition d'agent réducteur
US8151556B2 (en) Internal combustion engine exhaust after-treatment system and method
EP3313558B1 (fr) Procédé et appareil pour mélanger uniformément du réactif et du gaz d'échappement
CA2704478A1 (fr) Systeme d'echappement
US20130047583A1 (en) Aftertreatment system
GB2558311A (en) Flow distribution arrangement for aftertreatment of exhaust gas
WO2016107807A1 (fr) Procédé, appareil et dispositif pour post-traitement amélioré de gaz d'échappement
EP3670857B1 (fr) Mélange efficace de gaz dans un système post-traitement d'échappement
US10767536B2 (en) Efficient mixing of gases in an exhaust aftertreatment system
CN111263849A (zh) 内燃机的排气净化装置
CN111828142A (zh) 用于内燃发动机排气系统的排出气体处理装置
CN111183275B (zh) 内燃机的排气净化装置
FI128516B (en) A mixer arrangement and a method of mixing for aftertreatment of exhaust gas

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: BA ME

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17P Request for examination filed

Effective date: 20210111

RBV Designated contracting states (corrected)

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

17Q First examination report despatched

Effective date: 20210208

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

RIC1 Information provided on ipc code assigned before grant

Ipc: F01N 3/28 20060101ALI20220315BHEP

Ipc: F01N 13/00 20100101ALI20220315BHEP

Ipc: F01N 3/20 20060101AFI20220315BHEP

INTG Intention to grant announced

Effective date: 20220408

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: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1515440

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220915

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602018039958

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20220831

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

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: 20220831

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: 20220831

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: 20221130

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: 20220831

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: 20220831

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: 20220831

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1515440

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220831

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

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: 20220831

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: 20221231

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: 20220831

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: 20221201

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

Ref country code: SM

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

Effective date: 20220831

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: 20220831

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: 20230102

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: 20220831

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: 20220831

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: 20220831

Ref country code: AT

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: 20220831

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: 20220831

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: 20220831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602018039958

Country of ref document: DE

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

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: 20220831

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: 20220831

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20230601

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20221231

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: 20220831

Ref country code: LU

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

Effective date: 20221220

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

Ref country code: LI

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

Effective date: 20221231

Ref country code: IE

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

Effective date: 20221220

Ref country code: CH

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

Effective date: 20221231

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

Ref country code: BE

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

Effective date: 20221231

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

Ref country code: GB

Payment date: 20231218

Year of fee payment: 6

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

Ref country code: IT

Payment date: 20231129

Year of fee payment: 6

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: 20181220

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: 20220831

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: 20220831

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

Ref country code: MC

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

Effective date: 20220831

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

Ref country code: MC

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

Effective date: 20220831

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: 20220831

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: 20220831

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

Effective date: 20241220

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 NON-PAYMENT OF DUE FEES

Effective date: 20241220

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: 20241220

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: 20220831

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

Ref country code: FR

Payment date: 20251223

Year of fee payment: 8

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

Ref country code: DE

Payment date: 20251229

Year of fee payment: 8