EP3680464B1 - Système de refroidissement amélioré pour un moteur à combustion interne - Google Patents

Système de refroidissement amélioré pour un moteur à combustion interne Download PDF

Info

Publication number
EP3680464B1
EP3680464B1 EP20151297.7A EP20151297A EP3680464B1 EP 3680464 B1 EP3680464 B1 EP 3680464B1 EP 20151297 A EP20151297 A EP 20151297A EP 3680464 B1 EP3680464 B1 EP 3680464B1
Authority
EP
European Patent Office
Prior art keywords
opening
pump
cooling system
engine
fluidly connected
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
EP20151297.7A
Other languages
German (de)
English (en)
Other versions
EP3680464A1 (fr
Inventor
Jonathan Borg
Wolfgang Gstrein
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.)
FPT Motorenforschung AG
Original Assignee
FPT Motorenforschung AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FPT Motorenforschung AG filed Critical FPT Motorenforschung AG
Publication of EP3680464A1 publication Critical patent/EP3680464A1/fr
Application granted granted Critical
Publication of EP3680464B1 publication Critical patent/EP3680464B1/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
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/06—Retarder

Definitions

  • the present invention concerns a cooling system, in particular an improved cooling system for an internal combustion engine of a vehicle.
  • the internal combustion engine of a vehicle needs to be cooled for maintaining its temperature in a predetermined allowable range.
  • a cooling system configured to circulate a cooling fluid, e.g. water-glycol mixture, though, essentially, an internal combustion engine in which such cooling fluid is heated and a radiator in which the cooling fluid is cooled in a cycle.
  • a cooling fluid e.g. water-glycol mixture
  • the cooling circuit may be also configured to allow the circulation of the cooling fluid in other modules such as an EGR, i.e. Exhaust Gas Recirculation, Cooler, an oil cooler or an Intarder ® (i.e. a hydrodynamic brake cooler).
  • EGR Exhaust Gas Recirculation
  • Cooler an oil cooler
  • Intarder ® i.e. a hydrodynamic brake cooler
  • the circulation of the cooling fluid in engine and/or other modules is driven by a pump, such as an electric water pump or conventional belt-driven water pump.
  • the cooling system typically comprises all the aforementioned elements fluidically connected in series one with respect to the other. Therefore, supposing, for sake of example, that EGR cooler is in fluidic series with oil cooler and that only the latter needs high flow of cooling fluid while the EGR cooler simply needs a low flow of cooling fluid, the pump would however supply to both modules the highest needed flow of cooling fluid. In this way, the pump works the most of the time at a high demand level, thereby having a high energy consumption, and increasing fuel consumption of the vehicle/engine.
  • An aim of the present invention is to satisfy the above mentioned needs, in an economic and optimized way.
  • Figure 1 discloses a schematic view of a cooling system 1 for an internal combustion engine 2 of a vehicle; the cooling system 1 is configured to circulate a cooling fluid, e.g. water-glycol mixture, as described in the following so as to maintain the temperature of engine 2 and/or other modules within a comprised range of temperature.
  • a cooling fluid e.g. water-glycol mixture
  • Cooling system 1 essentially comprises a pump 3 configured to increase the pressure of a fluid passing through this latter between a first and a second openings 3a, 3b of this latter and a heat exchanger, such as a radiator 4, configured to cool the cooling fluid flowing through this latter between a first and a second openings 4a, 4b of this latter.
  • cooling system 1 further comprises an oil cooler 5 fluidly connected to pump 3 and to engine 2; in particular, pump output 3a is fluidly connected to a first opening 5a of oil cooler 5 and engine 2 is fluidly connected to a second opening 5b of oil cooler 5. Therefore, according to the above, oil cooler 5 and engine 2 are fluidly connected in series, the engine 2 being placed downstream with respect to oil cooler 5.
  • pump 3 is an electric pump.
  • an as known in the art engine 2 comprises essentially a block portion 7, a liner portion 8 and a head portion 9 fluidly connected one between the other in series between a first opening 2a and a second opening 2b for the cooling fluid.
  • second opening 5b of oil cooler 5 is fluidly connected to first opening 2a of engine 2.
  • Cooling system 1 preferably further comprises valve means 10 configured to allow the passage of cooling fluid from engine 2 towards either radiator 4 or to pump 3 according to a predefined temperature threshold.
  • valve means 10 may comprise a thermostatic switch valve, which can be controlled electrically or mechanically as known.
  • valve means 10 comprises a first opening 10a fluidly connected to second opening 2b of engine 2, a second opening 10b fluidly connected to first opening 4a of radiator 4 and a third opening 10c fluidly connected to a third opening 3c of pump 3. Therefore, if temperature of cooling fluid is lower than the preset threshold, this latter will return directly to pump 3 without passing into radiator 4, while, if temperature of cooling fluid is higher than the preset threshold, this latter will pass through radiator 4 to decrease its temperature before returning to pump 3 via openings 4b, 3a.
  • Cooling system 1 further comprises at least an operative module, such as in the present case an EGR cooler 11, fluidly interposed in parallel to engine 2 between pump 3 and valve means 10.
  • EGR cooler 11 is fluidly connected in parallel to the series of oil cooler 5 and engine 2.
  • EGR cooler 11 comprises a first opening 11a fluidly connected to second opening 3b of pump 3 upstream with respect to first opening 5a of oil cooler 5, and a second opening 11b fluidly connected to a fourth opening 10d of valve means 10.
  • cooling system 1 comprises flow control means 12 configured to reduce the flow of fluid into valve means 10 coming from engine 2 and/or the remaining operative module, in the present case the EGR cooler 11.
  • Valve means 12 may regulate such flow between predetermined maximum and minimum values, e.g. a total free flow and a zero flow.
  • cooling system 1 comprises flow control means 12a fluidly interposed between second opening 11b of EGR cooler 11 and fourth opening 10d of valve means 10. Further system may further comprise flow control means 12b fluidly interposed between second opening 2b of engine 2 and first opening 10a of valve means 10 and/or Advantageously, flow control means 12 may be realized among any known typology of valves (gate valves, butterfly valves etc..) and may be actuated mechanically, electrically or hydraulically as known.
  • flow control means 12 are electrically actuated valves, in particular they may be electrically connected to an electronic control unit (ECU), not shown, comprising elaboration means configured to acquire data related to engine 2 and operative modules 5, 11 operation and to control the status of flow control means 12 accordingly as described in the following. More preferably, such control unit is the ECU of the vehicle.
  • ECU electronice control unit
  • Cooling fluid starts its path from second opening 3b of pump 3 and directed partially to EGR cooler 11 and the remaining portion to oil cooler 5. From this latter, the cooling fluid passes through base 7, lines 8 and head 9 of engine 2 and flows out from this latter by second opening 2b. Fluid passing into EGR cooler 11 flows out from this latter by second opening 11b. Both parallel branches of cooling fluid coming from openings 2b, 11b flow to respectively openings 10a, 10d of valve means 10.
  • openings 2b, 11b flow to respectively openings 10a, 10d of valve means 10.
  • flow control means 12a, 12b will be controlled to reduce the flow of cooling fluid which can pass from opening 2b to opening 10a and/or from opening 11b to opening 10d.
  • the reduced cooling flow necessity may be based on operative information of engine 2 or modules 5, 11 or on it may be based on temperature measures of fluid flowing inside such elements 5, 11 thanks to sensors, not shown, carried by these elements and electrically connected to the electronic control unit.
  • FIG. 2 discloses a schematic view of a cooling system 1 for an internal combustion engine 2 of a vehicle according to a second embodiment of the invention.
  • cooling system 1 essentially comprises a pump 3 configured to increase the pressure of a fluid passing through this latter between a first and a second openings 3a, 3b of this latter and a radiator 4 configured to cool the cooling fluid flowing through this latter between a first and a second openings 4a, 4b of this latter.
  • cooling system 1 does not comprise the oil cooler 5 which is substituted by an oil cooler 5 configured as a separate air-to-oil cooler, as known in the art. It has to be noted that An air-to-oil cooler may be feasible, considering reduced oil flows and higher operating oil temperatures on friction-optimized engines.
  • second opening 3b of pump 3 is fluidly connected to first opening 2a of engine 2.
  • cooling system 1 further comprises valve means 10 configured to allow the passage of cooling fluid from engine 2 towards either radiator 4 or to pump 3 according to a predefined temperature threshold.
  • Valve means 10 comprises a first opening 10a fluidly connected to second opening 2b of engine 2, a second opening 10b fluidly connected to first opening 4a of radiator 4 and a third opening 10c fluidly connected to a third opening 3c of pump 3.
  • cooling system 1 further comprises at least an operative module, such as in the present case an EGR cooler 11, fluidly interposed in parallel to engine 2 between pump 3 and valve means 10.
  • EGR cooler 11 operative module, such as in the present case an EGR cooler 11, fluidly interposed in parallel to engine 2 between pump 3 and valve means 10.
  • EGR cooler 11 comprises a first opening 11a fluidly connected to second opening 3b of pump 3 upstream with respect to first opening 5a of oil cooler 5, and a second opening 11b fluidly connected to a fourth opening 10d of valve means 10.
  • cooling system 1 comprises flow control means 12 configured to reduce the flow of fluid into valve means 10 coming from engine 2 and/or the remaining operative module, in the present case the EGR cooler 11, similarly to what described for embodiment of figure 1 and not repeated for sake of brevity.
  • Cooling system 1 may comprise a further valve means 13 configured for divide fluid flow between engine 2 and EGR cooler 11, i.e. a branching module placed upstream with respect to engine 2 and EGR cooler 11.
  • the operation is substantially the same as the first embodiment except for the fact that the cooling fluid flows directly from second opening 3b of pump 3 directly into engine 2 and oil cooler 5 operates independently as an oil-to air cooler without interfering, i.e. without generating pressure drops due to passage of cooling fluid through this latter in the cooling system. Except for such aspect the operation is the same, i.e. flow control means 12 may be activated, when necessary, to reduce the flow of cooling passing from the respective operative module branch.
  • FIG. 3 discloses a schematic view of a cooling system 1 for an internal combustion engine 2 of a vehicle according to a third embodiment of the invention.
  • cooling system 1 essentially comprises a pump 3 configured to increase the pressure of a fluid passing through this latter between a first and a second openings 3a, 3b of this latter and a radiator 4 configured to cool the fluid flowing through this latter between a first and a second opening 4a, 4b of this latter.
  • cooling system 1 further comprises an oil cooler 5 fluidly connected to pump 3 and to engine 2, fluidically in series with this latter.
  • cooling system 1 further comprises valve means 10 configured to allow the passage of cooling fluid towards either radiator 4 or to pump 3 according to a predefined temperature threshold.
  • valve means 10 comprises a first opening 10a fluidly connected to an operative module as described in the following, a second opening 10b fluidly connected to first opening 4a of radiator 4 and a third opening 10c fluidly connected to a third opening 3c of pump 3.
  • First opening 10a of valve means 10 is not, as in figures 1 and 2 embodiments, directly connected to second opening 2b of engine 2. Indeed, it is fluidly connected to a second opening 14b of an operative module, such as an intarder ® 14.
  • cooling system 1 comprises further flow control means 15, having the same function of valve means 10, i.e. switching a fluid in particular coming from second opening 2b of engine 2 towards intarder 14 or directly towards first opening 10a of valve means 10.
  • flow control means 15 comprises a first opening 15a fluidly connected to second opening 2b of engine 2, a second opening 15b fluidly connected to a first opening 14a of intarder 14 and a third opening 15c directly fluidly connected to first opening 10a of valve means 10. Accordingly, oil cooler 5, engine 2 and intarder 14, when fluidly connected to these latter, are fluidically in series each other between pump 3 and valve means 10.
  • cooling system 1 further comprises at least an operative module, such as in the present case an EGR cooler 11, fluidly interposed in parallel to engine 2 between pump 3 and valve means 10.
  • EGR cooler 11 is fluidly connected in parallel to the series of engine 2, oil cooler 5 and intarder 14.
  • EGR cooler 11 comprises a first opening 11a fluidly connected to second opening 3b of pump 3 upstream with respect to first opening 5a of oil cooler 5, and a second opening 11b fluidly connected to a first opening 10a of valve means 10.
  • cooling system 1 comprises flow control means 12 configured to reduce the flow of fluid into valve means 10 coming from such operative module, in the present case the EGR cooler 11.
  • Valve means 12 operation and typology correspond to what described for embodiment of figures 1 and 2 , therefore they are not repeated for sake of brevity.
  • flow control means 12 may be activated, when necessary, to reduce the flow of cooling passing from the respective operative module branch.
  • FIG. 4 discloses a schematic view of a cooling system 1 for an internal combustion engine 2 of a vehicle. For sake of brevity, it may be resumed that all the elements described in first embodiments are present except for flow control means 12 which are not present and by an additional pump 3'.
  • pump 3' is a pump similar to pump 3 comprising a first opening 3a' fluidly connected to second opening 4b of radiator 4 and a second opening 3b' fluidly connected to first opening 11a of EGR cooler 11.
  • first opening 3a of pump 3 is fluidly connected to second opening 5b of radiator 4 and second opening 3b of pump 3 is fluidly connected to only first opening 5a of oil cooler 5.
  • radiator 4 and valve means 10 two different pressure sources are provided, in parallel with each other between radiator 4 and valve means 10 to an operative module, e.g. EGR cooler, and engine 2, in particular the series of engine 2 and oil cooler 5.
  • EGR cooler e.g. EGR cooler
  • engine 2 e.g. EGR cooler
  • Cooling fluid starts two independent paths from second opening 3b of pump 3 to oil cooler 5/engine 2 and from second opening 3b' of pump 3' to EGR cooler 11.
  • cooling fluid passes through base 7, lines 8 and head 9 of engine 2 and flows out from this latter by second opening 2b.
  • the cooling system 1 according to the invention, the fuel consumption of the system decreases and, at the same time, cavitation is reduced in critical components.
  • Such main effect is achieved thanks to the use of two separate parallel branches, one passing through at least engine 2 assembly and the remaining passing through at least an operative module, such as EGR cooler 11.
  • the cooling system performance can hence be optimally adapted to the needs of specific components to reduce the total power required to pump the coolant in the engine.
  • Other components can be isolated as parallel branches in a similar manner if necessary, see e.g. figure 3 embodiment, allowing more flexibility in the delivery of sufficient coolant flow at required pressures to each component or engine sub-system.
  • radiator 4 may be substituted by any known typology of heat exchanger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Claims (8)

  1. Système de refroidissement (1) pour le refroidissement d'un moteur à combustion interne (2) pour un véhicule, ledit système de refroidissement (1) comprenant au moins une pompe (3), un échangeur de chaleur (4), un ensemble moteur (2) et au moins un refroidisseur EGR (11), ladite pompe (3) comprenant une première ouverture (3a) reliée fluidiquement audit échangeur de chaleur (4), ledit ensemble moteur (2) et ledit au moins un refroidisseur EGR (11) étant chacun respectivement reliés fluidiquement audit échangeur de chaleur (4), ladite pompe (3) comprenant en outre une deuxième ouverture (3b) reliée fluidiquement respectivement audit ensemble moteur (2) et audit au moins un refroidisseur EGR (11), ledit ensemble moteur (3) et ledit au moins un refroidisseur EGR (11) étant placés parallèlement l'un à l'autre entre ledit échangeur de chaleur (4) et ladite pompe (3), dans lequel ledit système de refroidissement (1) comprend en outre des moyens de vanne (10) interposés fluidiquement entre ledit échangeur de chaleur (4), ladite pompe (3), ledit ensemble moteur (2) et ledit refroidisseur EGR (11), lesdits moyens de vanne (10) étant configurés pour diviser le flux, au moins partiellement, provenant dudit ensemble moteur (2) et dudit refroidisseur EGR (11) entre ledit échangeur de chaleur (4) et ladite pompe (3), dans lequel lesdits moyens de vanne (10) comprennent une première ouverture (10a) reliée fluidiquement à une deuxième ouverture (2b) dudit ensemble moteur (2), une troisième ouverture (10b) reliée fluidiquement à une quatrième ouverture (4a) de l'échangeur de chaleur (4), et une cinquième ouverture (10c) reliée fluidiquement à une sixième ouverture (3c) de la pompe (3) ;
    caractérisé en ce qu'il comprend des moyens de commande de flux (12) respectivement interposés fluidiquement entre la deuxième ouverture (2b) dudit ensemble moteur (2) et la première ouverture (10a) desdits moyens de vanne (10), lesdits moyens de commande de flux (12) étant configurés pour réduire le flux dans lesdits moyens de vanne (10) provenant dudit ensemble moteur (2) entre des valeurs maximale et minimale prédéfinies.
  2. Système de refroidissement selon la revendication 1, dans lequel ledit système de refroidissement (1) comprend en outre des moyens de commande de flux (12) entre ledit au moins un refroidisseur EGR (11) et ledit échangeur de chaleur (4) .
  3. Système de refroidissement selon la revendication 2, comprenant en outre une unité de commande électronique configurée pour commander la régulation de moyens de commande de flux (12).
  4. Système de refroidissement selon la revendication 1, dans lequel ledit système de refroidissement (1) comprend en outre une pompe supplémentaire (3') reliée fluidiquement audit refroidisseur EGR (11), ladite pompe (3) et ladite pompe supplémentaire (3') étant exploitables indépendamment l'une de l'autre.
  5. Système de refroidissement selon l'une quelconque des revendications précédentes, dans lequel lesdits moyens de vanne (10) comprennent une vanne thermostatique, ladite division étant réalisée en fonction d'un seuil de température prédéterminé.
  6. Système de refroidissement selon l'une quelconque des revendications précédentes, dans lequel ladite pompe est une pompe électrique.
  7. Système de refroidissement selon l'une quelconque des revendications précédentes, dans lequel ledit ensemble moteur (2) comprend un refroidisseur d'huile (5) et un moteur (2) fluidiquement en série l'un avec l'autre.
  8. Système de refroidissement selon la revendication 7, dans lequel ledit ensemble moteur (2) comprend en outre un intarder (14) fluidiquement en série sélectivement avec ledit refroidisseur d'huile (5) et ledit moteur (2) par l'intermédiaire de moyens de commande de flux (15).
EP20151297.7A 2019-01-14 2020-01-10 Système de refroidissement amélioré pour un moteur à combustion interne Active EP3680464B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000000559A IT201900000559A1 (it) 2019-01-14 2019-01-14 Sistema di raffreddamento migliorato per un motore a combustione interna

Publications (2)

Publication Number Publication Date
EP3680464A1 EP3680464A1 (fr) 2020-07-15
EP3680464B1 true EP3680464B1 (fr) 2023-12-06

Family

ID=65952018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20151297.7A Active EP3680464B1 (fr) 2019-01-14 2020-01-10 Système de refroidissement amélioré pour un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP3680464B1 (fr)
IT (1) IT201900000559A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3800335A1 (fr) * 2019-10-01 2021-04-07 FPT Industrial S.p.A. Moteur à combustion interne pourvu d'un système de refroidissement par liquide

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7299771B2 (en) * 2006-01-12 2007-11-27 International Engine Intellectual Property Company, Llc Coolant valve system for internal combustion engine and method
US7845339B2 (en) * 2008-12-16 2010-12-07 Cummins Intellectual Properties, Inc. Exhaust gas recirculation cooler coolant plumbing configuration
JP2018178881A (ja) * 2017-04-14 2018-11-15 愛三工業株式会社 Ｅｇｒ冷却装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3800335A1 (fr) * 2019-10-01 2021-04-07 FPT Industrial S.p.A. Moteur à combustion interne pourvu d'un système de refroidissement par liquide

Also Published As

Publication number Publication date
EP3680464A1 (fr) 2020-07-15
IT201900000559A1 (it) 2020-07-14

Similar Documents

Publication Publication Date Title
US8739745B2 (en) Cooling system and method
US7216609B2 (en) Motor vehicle cooling system
US8061309B2 (en) Cooling system
JP5919031B2 (ja) 冷却水制御バルブ装置
US10378421B2 (en) Automatic transmission fluid thermal conditioning system
US8109242B2 (en) Multi-thermostat engine cooling system
US10161361B2 (en) Method for operating a coolant circuit
US20070186878A1 (en) Vehicular thermostatically-controlled dual-circuit cooling system and associated method
US20080060592A1 (en) Split Cooling System for an Internal Combustion Engine
US9022176B2 (en) Temperature management system for transmission
RU2605493C2 (ru) Контур охлаждающей жидкости
US8695543B2 (en) Internal combustion engine cooling unit
US20070079774A1 (en) Cooling system for a combustion engine
CN103635670A (zh) 冷却系统
JP2006348793A (ja) 内燃機関の排気還流装置
CN107662696B (zh) 用于操作船舶的冷却系统的方法
CN103358885A (zh) 多区域车辆散热器
GB2528680A (en) Transmission heat exchange system
CN109488438B (zh) 一种带dct冷却大循环回路的冷却系统
EP3680464B1 (fr) Système de refroidissement amélioré pour un moteur à combustion interne
KR102615752B1 (ko) 통합 orc를 구비한 구동 장치
JP2008095694A (ja) エンジンの冷却装置
CN111206980B (zh) 发动机水套和具有该发动机水套的发动机冷却系统
CN102971518B (zh) 冷却系统
CN114263523A (zh) 发动机水套、冷却系统及车辆

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

17P Request for examination filed

Effective date: 20210114

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

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: 20221025

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: 20230626

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

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

Effective date: 20231027

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

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: 602020022140

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

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: 20240307

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20231206

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

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: 20231206

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

Ref country code: ES

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

Effective date: 20231206

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

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: 20231206

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: 20240307

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: 20231206

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: 20240306

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

Ref country code: DE

Payment date: 20240129

Year of fee payment: 5

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1638606

Country of ref document: AT

Kind code of ref document: T

Effective date: 20231206

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: 20231206

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: 20231206

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: 20231206

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: 20240306

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: 20231206

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: 20231206

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: 20231206

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

Ref country code: IT

Payment date: 20240125

Year of fee payment: 5

Ref country code: FR

Payment date: 20240125

Year of fee payment: 5

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: 20240406

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231206

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: 20231206

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: 20231206

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: 20231206

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: 20231206

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: 20231206

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: 20240406

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: 20231206

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: 20231206

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: 20231206

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: 20231206

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: 20240408

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

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: 20240408

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: 20231206

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: LU

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

Effective date: 20240110

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: 20240110

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: 20231206

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

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: 20231206

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

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

Ref country code: BE

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

Effective date: 20240131