EP3710688B1 - Antriebsstrang mit verbessertem schadstoffbeseitigungssystem - Google Patents

Antriebsstrang mit verbessertem schadstoffbeseitigungssystem Download PDF

Info

Publication number
EP3710688B1
EP3710688B1 EP18789166.8A EP18789166A EP3710688B1 EP 3710688 B1 EP3710688 B1 EP 3710688B1 EP 18789166 A EP18789166 A EP 18789166A EP 3710688 B1 EP3710688 B1 EP 3710688B1
Authority
EP
European Patent Office
Prior art keywords
casing
tubular wall
pollution control
control system
enclosure
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
EP18789166.8A
Other languages
English (en)
French (fr)
Other versions
EP3710688A1 (de
Inventor
Eric Dumas
Acacio MARTINS
Xavier Decomble
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.)
Renault SAS
Nissan Motor Co Ltd
Original Assignee
Renault SAS
Nissan Motor Co Ltd
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 Renault SAS, Nissan Motor Co Ltd filed Critical Renault SAS
Publication of EP3710688A1 publication Critical patent/EP3710688A1/de
Application granted granted Critical
Publication of EP3710688B1 publication Critical patent/EP3710688B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/11—Manufacture or assembly of EGR systems; Materials or coatings specially adapted for EGR systems
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • 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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • 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
    • 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
    • F01N3/103—Oxidation catalysts for HC and CO only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/12—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems characterised by means for attaching parts of an EGR system to each other or to engine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
    • F02M26/15—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/30—Connections of coolers to other devices, e.g. to valves, heaters, compressors or filters; Coolers characterised by their location on the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • 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
    • F01N2240/02—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 heat exchanger

Definitions

  • the invention relates to an improved pollution control system for a power train with a heat engine.
  • the invention relates more particularly to a catalytic converter for a thermal engine pollution control system.
  • the invention relates to a motor vehicle provided with a powertrain with an improved pollution control system.
  • a motor vehicle provided with a powertrain has been subjected for several years to severe constraints in terms of pollution control in order to reduce as much as possible the emissions of polluting gases into the atmosphere such as nitrogen oxides and monoxides. and / or carbon.
  • a powertrain comprises a heat engine, and the pollution control system is placed on an exhaust line of said engine.
  • a pollution control system comprises a particulate filter (FAP) and an oxidation catalyst (DOC) also known under the name of catalytic converter mounted in series on the exhaust line.
  • FAP particulate filter
  • DOC oxidation catalyst
  • the gases leaving the low pressure pollution control system are very hot, which reduces the mass of the gases before they enter the engine intake circuit and therefore the efficiency of said engine. It is known to add a burnt gas cooler to the low pressure burnt gas recirculation circuit.
  • the cooler can be a water-air exchanger in which the air, here the burnt gases, transfers a calorific quantity to the water which carries this heat, for example to a radiator generally on the front face of the vehicle.
  • the publications FR3041033-A1 and US4912928-A offer a heat exchanger connected to a catalyst with the aim of reducing the size of the heat exchanger, reducing the overall size of the exchanger, lowering the production cost and reducing the space of the heat exchanger. installation. Said exchanger is installed downstream of the catalyst and the document does not propose a compact arrangement of the gas recirculation device which comprises a catalyst and an exchanger.
  • a part connector of the water-air exchanger is pushed into an outlet of the pollution control system.
  • This connector then forms a large protuberance in a chamber at the outlet of the depollution system, here a catalytic converter altering the circulation of the depolluted gases at the outlet to form zones with low gas circulation speed and high temperatures.
  • the gases arriving in this zone are very hot.
  • they help to heat the wall of the water-air exchanger and form a high temperature zone which disturbs the operation of the cooler: in fact, the water is brought to high temperature and therefore does not evacuate the heat from the cooler. gas with the expected efficiency, which leads to lower efficiency in reducing polluting gas emissions.
  • the object of the invention is to remedy these problems and one of the objects of the invention is a powertrain with a pollution control system with improved cooling of the burnt gases.
  • the present invention relates to a system for recirculating burnt gases from a heat engine of a motor vehicle, downstream of a pollution control system.
  • the present invention relates more particularly to a device for recirculating the burnt gases of a motor vehicle powertrain comprising a casing of a flue gas pollution control system and a heat exchanger configured according to claim 1.
  • the burnt gas recirculation device provides a casing surrounding a tubular wall of a connection end piece of an element of the burnt gas recirculation circuit in order to protect said end piece from hot burnt gases and in particular the tubular wall embedded in the housing of the pollution control system.
  • the device comprises a layer of thermal insulation placed between the casing and the tubular wall in order to obtain optimum thermal protection of the end piece.
  • the figure 1 represents a device for recirculating the burnt gases resulting from the combustion of a mixture of air and fuel in a combustion chamber of a thermal or internal combustion engine (not shown).
  • the heat engine of a motor vehicle comprises a cylinder block surmounted by a cylinder head.
  • the cylinder block In the cylinder block are hollowed out cylinders in each of which slides a piston.
  • the volume delimited by the wall of the cylinder, the piston and a lower wall of the cylinder head forms a combustion chamber.
  • fuel and gases composed mainly of fresh air and recirculated gases to form a mixture which is compressed by the rise of the piston to be subsequently burned.
  • the burnt gases escape via exhaust ducts controlled by exhaust valves to an exhaust manifold capable of directing said burnt gases to a pollution control system 100.
  • the pollution control system can comprise various pollution control elements, one of which is one. catalyst associated with a particulate filter for example, said elements are housed inside a substantially cylindrical housing 101.
  • the burnt gases undergo the depollution treatment as they pass through the depollution elements and a part of said burnt gases at the outlet of the depollution system 100 is taken up to be returned to the air intake of the engine in order to reduce gas emissions. pollutants, thanks to a recirculation circuit 10 of the burnt gases.
  • the circuit for recirculating the burnt gases taken downstream according to the direction of flow of the burnt gases from the pollution control system is called “low pressure”.
  • Another circuit can also return burnt gases to the engine intake but upstream of the pollution control system and is said to be “high pressure”.
  • the invention relates to the “low pressure” burnt gas recirculation circuit.
  • the gases leaving the pollution control system 100 are very hot, which reduces the mass of the gases before they enter the engine intake circuit and therefore the efficiency of said engine.
  • a burnt gas cooler can be a water-air exchanger 102 in which the burnt gases transfer a calorific quantity to the water which carries away this heat for example to a radiator (not shown) generally on the front face of the vehicle.
  • the burnt gas recirculation circuit comprises various recirculation elements including an EGR valve for “Exhaust gas recirculation” or burnt gas recirculation, a cooler 102 of said gases.
  • the figure 2 shows the connection of the water-gas exchanger 102 of the device 10 for recirculating the burnt gases with the depollution system 100.
  • the cooler 102 comprises a substantially cylindrical connection end piece 11 surrounding longitudinal gas conduits 104 which are bathed in a transfer chamber 103 filled with cooling liquid.
  • the cooling liquid is water-based and enters said transfer chamber 103 through an inlet opening 105 and leaves it through an outlet 106 to then be led to a radiator (not shown).
  • connection end piece 11 comprises a tubular wall 12 and is driven through an outlet opening 107 in a substantially conical outlet wall 108 of the casing 101 of the pollution control system.
  • a portion of the hot gases is directed by the conical wall 108 of the casing 101 and strike laterally said tubular wall 12 of the nozzle to form a zone of high temperatures affecting the thermal characteristics of the cooling liquid, in contact.
  • the invention proposes a protection of the tubular wall 12 of the connection end piece 11 against this part of burnt gases.
  • the figures 3 and 4 represent a first embodiment of the invention.
  • the recirculation device 10 according to the invention comprises a casing 14 formed by a metal sheet, for example made of stainless steel sheet of low thickness between 0.2mm and 0.5mm.
  • Said envelope 14 surrounds the tubular wall 12 of the connection end piece 11 when the latter is mounted and pressed into the wall 108 of the housing 101.
  • the envelope 14 is tubular to allow the housing of the connection end piece.
  • the casing has an outer wall 15 in contact with the burnt gases, capable of deflecting the burnt gases in a direction opposite to the tubular wall 12.
  • the term “direction opposite to the wall” is understood to mean. tubular ”a direction away from the tubular wall.
  • Said outer wall 15 may have a substantially conical shape with a deflection angle ⁇ for example to substantially form a deflector 16 of the burnt gas flows.
  • the casing 14 is separated from the tubular wall 12 of the connection end piece 11. In this way, no heat transfer by thermal conduction between the casing 14 and the tubular wall 12 can be effected.
  • the inside diameter of the casing 14 is substantially equal to the outside diameter of the connection end piece 11.
  • no hot gas flow circulates between the casing and the tubular wall of the end piece.
  • the casing 14 is part of the casing 101 of the pollution control system 100.
  • the casing 14 is substantially cylindrical with one end 17 turned towards the pollution control system slightly constricted and comprising claws 18 for fixing.
  • the casing 14 is easily gripped to the connection end piece 11 when said end piece is pressed into the wall 108 of the casing 101.
  • the fixing claws 18 also allow optimum positioning of the casing 14 relative to the tubular wall 12 of the casing.
  • Said separation 19 or separation space is filled with a layer of air or gas forming an insulating layer between the casing and the tubular wall.
  • the separation space may be closed or of suitable size to prevent gas from circulating in said separation space 19.
  • the thickness of said space is very small, of the order of one mm, or access to said space is very small. separation is closed or covered by the envelope 14.
  • the casing 14 is part of the connection end piece 11.
  • the casing 14 is formed by a metal sheet wound around the tubular wall 12 of the connection end piece. It rests only on the longitudinal ends 17,17 'of the nozzle and is separated from the tubular wall 12 to form a separation space 19 between the casing 14 and the tubular wall 12 of the connection end piece.
  • the envelope may be formed by a cylindrical metal sheet shown in figure 6 , it is wound or threaded around the tubular wall 12 as shown in figure 7 .
  • the separation space 19 between the casing 14 and the tubular wall 12 is thin and can be filled with air or with a layer of thermal insulation 21 such as a layer based on glass fibers and resins. high temperatures or ceramic.
  • the casing 14 can extend along the axis of the nozzle over a length greater than the length of insertion 20 of the nozzle 11 in the housing 101, that is to say that the casing 14 protrudes outside the casing 101 of the pollution control system 100 to increase the thermal insulation of the connection end piece and improve the efficiency of the exchanger.
  • the casing covering the portion of the connection end piece of the exchanger pushed into the casing allows thermal protection of said end piece against hot gas flows impinging on the side tubular wall of said end piece, said envelope being easy to manufacture and install.
  • the thickness of the insulating layer placed between the casing and the tubular wall can be increased, which nevertheless necessitates increasing the opening of the housing of the pollution control system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (9)

  1. Vorrichtung (10) zur Rückführung von Abgasen eines Antriebsstrangs eines Kraftfahrzeugs, umfassend:
    - ein Gehäuse (101) eines Abgasreinigungssystems (100),
    - einen Wärmetauscher (102) zwischen einer Kühlflüssigkeit und den Abgasen, der einen Verbindungsstutzen (11) mit einer rohrförmigen Wand (12) aufweist, der durch eine Auslassöffnung (107) in einer konischen Auslasswand (108) des Gehäuses (101) des Reinigungssystems gedrückt ist, wobei die Abgase auf die rohrförmige Wand auftreffen,
    dadurch gekennzeichnet, dass die Vorrichtung (10) eine Hülle (14) umfasst, die die rohrförmige Wand (12) des Verbindungsstutzens umgeben kann, um die rohrförmige Wand (12) vor den Abgasen zu schützen.
  2. Rückführungsvorrichtung (10) nach Anspruch 1, dadurch gekennzeichnet, dass die Hülle (14) rohrförmig ist.
  3. Rückführungsvorrichtung (10) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Hülle (14) die Abgasströme in eine der rohrförmigen Wand entgegengesetzte Richtung umleiten kann.
  4. Rückführungsvorrichtung (10) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Hülle (14) durch ein Metallblech ausgebildet ist.
  5. Rückführungsvorrichtung (10) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Hülle (14) von der rohrförmigen Wand (12) getrennt ist.
  6. Rückführungsvorrichtung (10) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Vorrichtung (10) eine zwischen der Hülle (14) und der rohrförmigen Wand (12) angeordnete Wärmedämmschicht aufweist.
  7. Rückführungsvorrichtung (10) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Hülle (14) Teil des Gehäuses (101) des Reinigungssystems (100) ist.
  8. Rückführungsvorrichtung (10) nach Anspruch 7, dadurch gekennzeichnet, dass der Innendurchmesser der Hülle (14) im Wesentlichen gleich dem Außendurchmesser des Verbindungsstutzens (11) ist.
  9. Rückführungsvorrichtung (10) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Hülle (14) Teil des Verbindungsstutzens (11) ist.
EP18789166.8A 2017-11-15 2018-10-24 Antriebsstrang mit verbessertem schadstoffbeseitigungssystem Active EP3710688B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1760753A FR3073574A1 (fr) 2017-11-15 2017-11-15 Groupe motopropulseur avec systeme de depollution ameliore
PCT/EP2018/079172 WO2019096553A1 (fr) 2017-11-15 2018-10-24 Groupe motopropulseur avec systeme de depollution ameliore

Publications (2)

Publication Number Publication Date
EP3710688A1 EP3710688A1 (de) 2020-09-23
EP3710688B1 true EP3710688B1 (de) 2021-08-25

Family

ID=60923730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18789166.8A Active EP3710688B1 (de) 2017-11-15 2018-10-24 Antriebsstrang mit verbessertem schadstoffbeseitigungssystem

Country Status (4)

Country Link
EP (1) EP3710688B1 (de)
CN (1) CN111295505B (de)
FR (1) FR3073574A1 (de)
WO (1) WO2019096553A1 (de)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2659720B2 (ja) 1987-09-11 1997-09-30 三菱重工業株式会社 排ガス熱交換装置
DE10054264A1 (de) * 2000-11-02 2002-05-08 Opel Adam Ag Saugrohranlage für eine Brennkraftmaschine
JP4931390B2 (ja) * 2005-09-12 2012-05-16 臼井国際産業株式会社 Ｅｇｒガス冷却装置
CN101832201B (zh) * 2010-04-29 2012-05-02 重庆长安汽车股份有限公司 一种发动机废气再循环管与塑料进气歧管的连接结构
FR3014947B1 (fr) * 2013-12-13 2017-12-29 Renault Sas Ligne d'echappement de moteur a combustion interne et moteur a combustion interne comportant une telle ligne d'echappement
FR3041033B1 (fr) * 2015-09-15 2017-09-15 Renault Sas Ligne d'echappement et circuit d'air pour moteur de vehicule automobile permettant une integration optimisee du circuit de recirculation des gaz d'echappement
GB2546488B (en) * 2016-01-19 2020-05-13 Ford Global Tech Llc An engine exhaust gas recirculation system with at least one exhaust recirculation treatment device
GB2559182B (en) * 2017-01-30 2021-01-06 Senior Uk Ltd Finned heat exchangers

Also Published As

Publication number Publication date
EP3710688A1 (de) 2020-09-23
CN111295505B (zh) 2022-07-26
CN111295505A (zh) 2020-06-16
FR3073574A1 (fr) 2019-05-17
WO2019096553A1 (fr) 2019-05-23

Similar Documents

Publication Publication Date Title
FR2908472A1 (fr) Procede pour alimenter en gaz d'echappement un moteur, element d'echappement, ligne d'echappement et vehicule comportant des moyens pour alimenter un tel moteur en gaz d'echappement
WO2012062715A1 (fr) Collecteur de repartition de gaz et module d'admission de gaz correspondant
WO2009144408A2 (fr) Chambre de combustion annulaire de moteur a turbine a gaz
FR2942640A1 (fr) Chambre de post-combustion pour turbomachine
EP3710688B1 (de) Antriebsstrang mit verbessertem schadstoffbeseitigungssystem
FR2920829A1 (fr) Systeme d'admission d'air pour compresseur de turbine a gaz, et procede associe
EP1271052B1 (de) Abgasrückführungsstrahlrohrbrenner mit niedrigem NOx-Ausstoss
WO2008142263A2 (fr) Installation pour le refroidissement des gaz d'echappement recircules de moteur a combustion interne et de la vanne de controle de la circulation de ces gaz
EP0718480A1 (de) Abgasanlage für Brennkraftmaschine
FR2824361A1 (fr) Systeme de gaz d'echappement pour un moteur a combustion interne
FR3084109A1 (fr) Dispositif d’isolation thermique a l’echappement de moteur thermique
WO2009056719A2 (fr) Dispositif d'injection d'air dans une ligne d'echappement
KR20160042846A (ko) 자기 점화 내연기관용 실린더 헤드
EP1683957B1 (de) Verbrennungsmotor mit indirekter Einspritzung
FR2910388A3 (fr) Systeme de refroidissement thermique
FR2738289A1 (fr) Dispositif d'echappement pour moteur a combustion interne
EP2032827A1 (de) Einen zylinderkopf mit einem thermisch entkoppelten integrierten abgaskrümmer enthaltende abgasvorrchtung
FR3026788A3 (fr) Refroidissement du pontet d'echappement de culasse
FR2925609A1 (fr) Collecteur d'admission pourvu d'un dispositif d'injection de gaz d'echappement
FR2727466A1 (fr) Collecteur d'echappement pour moteur a combustion interne
FR3120398A1 (fr) Dispositif d'échangeur à tubes de section trapézoïdale
FR2934362A1 (fr) Echangeur de refroidissement.
FR2717858A1 (fr) Dispositif d'échappement pour moteur à combustion interne.
EP3922825A1 (de) Kühlkreis für doppelstrommodul
FR2954412A1 (fr) Moteur a combustion interne integrant un dispositif de recirculation des gaz d'echappement

Legal Events

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

Free format text: STATUS: UNKNOWN

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: 20200410

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)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602018022531

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F02M0026120000

Ipc: F02M0026110000

RIC1 Information provided on ipc code assigned before grant

Ipc: F01N 13/18 20100101ALI20210310BHEP

Ipc: F01N 3/10 20060101ALI20210310BHEP

Ipc: F01N 3/021 20060101ALI20210310BHEP

Ipc: F02M 26/32 20160101ALI20210310BHEP

Ipc: F02M 26/30 20160101ALI20210310BHEP

Ipc: F02M 26/15 20160101ALI20210310BHEP

Ipc: F02M 26/12 20160101ALI20210310BHEP

Ipc: F02M 26/11 20160101AFI20210310BHEP

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: 20210514

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

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

Ref country code: AT

Ref legal event code: REF

Ref document number: 1424038

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210915

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602018022531

Country of ref document: DE

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: 20210825

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1424038

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210825

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: 20211227

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: 20211125

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: 20211125

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: 20210825

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: 20210825

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: 20210825

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: 20210825

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: 20210825

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: 20210825

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: 20210825

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: 20210825

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: 20210825

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: 20211126

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: NISSAN MOTOR CO., LTD.

Owner name: RENAULT S.A.S

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: 20210825

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: 20210825

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602018022531

Country of ref document: DE

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: 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: 20210825

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: 20210825

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: 20210825

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: 20210825

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: 20210825

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: 20210825

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20211031

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: 20210825

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

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: NISSAN MOTOR CO., LTD.

Owner name: RENAULT S.A.S

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: 20211024

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: 20210825

Ref country code: BE

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

Effective date: 20211031

26N No opposition filed

Effective date: 20220527

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: 20210825

Ref country code: LI

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

Effective date: 20211031

Ref country code: CH

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

Effective date: 20211031

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: 20211024

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: 20210825

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: 20181024

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

Ref country code: GB

Payment date: 20231020

Year of fee payment: 6

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

Ref country code: FR

Payment date: 20231026

Year of fee payment: 6

Ref country code: DE

Payment date: 20231020

Year of fee payment: 6

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: 20210825

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: 20210825

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: 20210825