EP3990760A1 - Dispositif de post-traitement de gaz d'échappement - Google Patents

Dispositif de post-traitement de gaz d'échappement

Info

Publication number
EP3990760A1
EP3990760A1 EP20735117.2A EP20735117A EP3990760A1 EP 3990760 A1 EP3990760 A1 EP 3990760A1 EP 20735117 A EP20735117 A EP 20735117A EP 3990760 A1 EP3990760 A1 EP 3990760A1
Authority
EP
European Patent Office
Prior art keywords
flow path
exhaust gas
annular
metal foils
flow
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.)
Withdrawn
Application number
EP20735117.2A
Other languages
German (de)
English (en)
Inventor
Rolf BRÜCK
Peter Hirth
Sven Schepers
David Odenthal
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.)
Vitesco Technologies GmbH
Original Assignee
Vitesco Technologies GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vitesco Technologies GmbH filed Critical Vitesco Technologies GmbH
Publication of EP3990760A1 publication Critical patent/EP3990760A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • 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 ; Methods of operation or control of catalytic converters
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • 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
    • 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
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • 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
    • F01N2240/16—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 an electric heater, i.e. a resistance heater
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • F01N2330/38—Honeycomb supports characterised by their structural details flow channels with means to enhance flow mixing,(e.g. protrusions or projections)
    • 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 gas passages, pipes or tubes
    • F01N2470/22—Inlet and outlet tubes being positioned on the same side of the apparatus
    • 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 gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
    • 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
    • F01N2510/00—Surface coverings
    • 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 ; Methods of operation or control of catalytic converters
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • F01N3/2026—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect
    • 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
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a device for exhaust gas aftertreatment, in particular a ring catalytic converter, with a first tubular flow path, with a deflection chamber and with a second annular flow path, the tubular flow path being delimited outward in the radial direction by an inner tube and the second annular flow path in the radial direction is limited to the inside by the inner tube and to the outside by an outer tube and the deflection chamber is designed to deflect the exhaust gas flow from the tubular flow path into the annular flow path.
  • catalytic converters are advantageously arranged close to the source of the exhaust gases in order to generate high exhaust gas temperatures as quickly as possible, and thus also high temperatures on the catalytic converters themselves.
  • electrically heated components can be used to increase the exhaust gas temperature through the electrical auxiliary heating.
  • One embodiment of the invention relates to a device for exhaust gas aftertreatment, in particular a ring catalytic converter, with a first tubular flow path, with a deflection chamber and with a second annular flow path, the tubular flow path being delimited outward in the radial direction by an inner tube and the second annular
  • the flow path is delimited in the radial direction inward by the inner tube and outward by an outer tube and the deflection chamber is designed to deflect the exhaust gas flow from the tubular flow path into the annular flow path
  • the ring catalyst having at least one annular support body which is coated with a catalytically active coating is acted upon and is arranged in the annular flow path.
  • the basic structure of a ring catalyst is known from the prior art.
  • the main features are the tubular flow path in the Center of the ring catalytic converter, which in particular enables improved mixing of the exhaust gas flow.
  • this flow path can be used, for example, to mix the exhaust gas with a vaporized urea solution in order to subsequently enable a more uniform application of the catalytically active carrier bodies of the catalytic converters arranged in the ring catalytic converter.
  • the exhaust gas flows out of the tubular flow path through a deflection chamber in which the exhaust gas is deflected radially outward and finally flows through the annular flow path in a flow direction opposite to the flow in the tubular flow path.
  • Ring catalytic converters are characterized in particular by their short overall length compared to the actual length of the flow path inside.
  • a wide variety of catalytic converters can be arranged in the flow paths, which are designed to convert different components of the exhaust gas, depending on the type of exhaust gas.
  • the carrier bodies of the catalysts can, for example, be metallic and be formed from stacked and wound metal foils.
  • the use of coated ceramic materials is also possible.
  • the carrier body is produced from a plurality of metal foils and a plurality of flow channels is formed between the metal foils through which flow can flow along the direction of flow.
  • the plurality of flow channels is advantageous in order to generate as large an active surface as possible over which the exhaust gas can flow.
  • the metal foils have cutouts, as a result of which overflow passages are formed between flow channels that are adjacent to one another.
  • Recesses can, for example, be perforations in the metal foils. Stamped shapes and profiles can also be provided on the edges of the recesses, which promote an overflow of the exhaust gas between flow channels adjacent to one another.
  • the cutouts also substantially reduce the thermal mass of the carrier body, as a result of which heating of the carrier body to the light-off temperature is accelerated.
  • a preferred embodiment is characterized in that the carrier body is formed from at least partially structured metal foils and smooth metal foils, which are stacked on top of one another and wound up. This is advantageous because the production of support bodies in this way is widely known and a large number of different support bodies that are tailored to the respective application can thus be produced in a simple manner.
  • the recesses in the metal foils are arranged on the end region of the carrier body facing the deflection chamber. This is advantageous because, particularly in the area of the carrier body where the exhaust gas flows into the flow channels, a low thermal capacity leads to rapid heating. This ensures that the light-off temperature is reached as quickly as possible.
  • the heating disk can, for example, also be a metallic carrier body which is formed from metal foils.
  • the heating panel has one or more electrical conductors which are connected to a voltage source and can thus contribute to heating the carrier body by utilizing the electrical resistance.
  • the electrical conductors can be wound between the metal foils of the carrier body or, for example, attached to the inflow side of the heating disk.
  • the electrically heatable heating panel is located in front of the carrier body in the direction of flow of the exhaust gas. This is advantageous in order to achieve a temperature increase in the flowing exhaust gas, if possible before the catalytically active carrier body.
  • the outer tube of the ring catalytic converter or the jacket in which the outer tube is received has a heating element.
  • a heating element is used in particular to close the ring catalytic converter from the outside heat and transfer energy from the jacket and / or the outer tube to the exhaust gas through the thermal radiation.
  • the heating element is formed by a heating coil which is wound around the jacket or the outer tube.
  • a heating coil can advantageously be formed by a current-carrying conductor that is wound around the outer tube or the jacket. In this way, the outer tube or the jacket can be heated in a targeted manner as required and the heat can be given off to the flowing exhaust gas and / or the carrier body via the thermal radiation and the thermal conduction inside
  • the heating element is formed by a plurality of heating devices which are arranged distributed along the circumference of the jacket or the outer tube.
  • PTC heating elements can be provided, which are arranged distributed on the outer tube or the jacket and thus generate heating of the respective structure.
  • FIG. 1 shows a sectional view through a ring catalytic converter, the carrier body having a perforation in the ring-shaped flow path on its inflow side,
  • FIG. 2 shows a sectional view through a ring catalytic converter, with a heating disk in front of the annular support body, viewed in the direction of flow, and FIG. Preferred embodiment of the invention
  • FIG. 1 shows a sectional view through a ring catalytic converter 1, the carrier body 3 arranged in the ring-shaped flow path 2 having a plurality of recesses 5 on its gas inflow side 4.
  • the recesses 5 which are introduced into the individual metal foils from which the carrier body 3 is formed, for example, the heat capacity of the carrier body 3 can be reduced, which enables faster heating and thus faster reaching of the light-off temperature.
  • FIG. 2 shows a ring catalytic converter 1 of the type already shown in FIG.
  • an electrically heatable heating disk 7 is positioned in front of the carrier body 6.
  • the heating disk 7 can be arranged completely in the annular flow path 2, or else a little in front of it in the deflection chamber and, through its own structure, extend both the tubular flow path 8 and the annular flow path 2.
  • the heating disk 7 can have an electrical contact (not shown) with a
  • Voltage source are connected and so electrically heated.
  • FIG. 3 shows a ring catalytic converter 1 as in the preceding FIGS. 1 and 2, a heating coil 9 now being wound around the outer tube or the outer jacket of the ring catalytic converter 1.
  • This heating coil 9 can be formed, for example, by a heating conductor.
  • the heating coil 9 can be arranged along the entire axial extent of the annular flow path 2, so that heating from the outside is achieved over the entire length.
  • the heating coil can wrap around only a part of the area.
  • the gas inlet side of the carrier body 3 is wrapped in such a case.

Abstract

L'invention concerne un dispositif de post-traitement de gaz d'échappement, notamment un catalyseur annulaire (1), comprenant une première trajectoire de circulation tubulaire (8), une chambre de déviation et une seconde voie de circulation annulaire (2), la voie de circulation tubulaire (8) étant délimitée en direction radiale vers l'extérieur par un tube intérieur, et la voie de circulation annulaire (2) étant délimitée en direction radiale vers l'intérieur par le tube intérieur et vers l'extérieur par un tube extérieur, et la chambre de déviation étant conçue pour dévier le flux de gaz d'échappement issu de la voie de circulation tubulaire (8) dans la voie de circulation annulaire (2), le catalyseur annulaire (1) présentant au moins un corps de support (3, 6) annulaire qui est doté d'un revêtement catalytiquement actif et est disposé dans la voie de circulation annulaire (2).
EP20735117.2A 2019-06-26 2020-06-24 Dispositif de post-traitement de gaz d'échappement Withdrawn EP3990760A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019209301.9A DE102019209301A1 (de) 2019-06-26 2019-06-26 Vorrichtung zur Abgasnachbehandlung
PCT/EP2020/067594 WO2020260337A1 (fr) 2019-06-26 2020-06-24 Dispositif de post-traitement de gaz d'échappement

Publications (1)

Publication Number Publication Date
EP3990760A1 true EP3990760A1 (fr) 2022-05-04

Family

ID=71266639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20735117.2A Withdrawn EP3990760A1 (fr) 2019-06-26 2020-06-24 Dispositif de post-traitement de gaz d'échappement

Country Status (7)

Country Link
US (1) US20220105465A1 (fr)
EP (1) EP3990760A1 (fr)
JP (1) JP7284300B2 (fr)
KR (1) KR20220048466A (fr)
CN (1) CN114008308A (fr)
DE (1) DE102019209301A1 (fr)
WO (1) WO2020260337A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021106096A1 (de) 2021-03-12 2022-09-15 Volkswagen Aktiengesellschaft Abgasnachbehandlungssystem und Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990012950A1 (fr) * 1989-04-17 1990-11-01 Emitec Gesellschaft Für Emissionstechnologie Mbh Filtre a suie pour moteur diesel, dote d'un dispositif auxiliaire de reduction des oxydes d'azote et/ou d'oxydation du monoxyde de carbone
JPH04131138A (ja) * 1990-09-19 1992-05-01 Calsonic Corp 金属触媒担体の製造方法
JP2983429B2 (ja) * 1994-02-25 1999-11-29 本田技研工業株式会社 内燃機関の排気ガス浄化装置
EP0835160B1 (fr) * 1995-06-28 2000-05-24 Siemens Aktiengesellschaft Procede et dispositif de purification catalytique des effluents gazeux d'un systeme de combustion
JP2002070534A (ja) * 2000-06-16 2002-03-08 Matsumoto Giken Kk ディーゼルエンジン排ガスの粒子状物質除去装置
EP1583891A1 (fr) * 2003-01-14 2005-10-12 Emitec Gesellschaft für Emissionstechnologie mbH Unite de retraitement des gaz d'echappement peu encombrante et pourvue de zones d'ecoulement aller-retour imbriquees avec une entree et une sortie de gaz du meme cote
US7614215B2 (en) * 2006-09-18 2009-11-10 Cummins Filtration Ip, Inc. Exhaust treatment packaging apparatus, system, and method
US8499548B2 (en) * 2008-12-17 2013-08-06 Donaldson Company, Inc. Flow device for an exhaust system
EP2453113B1 (fr) * 2010-11-10 2015-03-11 Volvo Car Corporation Dispositif d'après-traitement de gaz d'échappement
JP2016186229A (ja) * 2015-03-27 2016-10-27 ダイハツ工業株式会社 排気ガス浄化装置
DE102017111125A1 (de) * 2017-05-22 2018-11-22 Volkswagen Aktiengesellschaft Abgasnachbehandlungssystem für einen Verbrennungsmotor
CN208380672U (zh) * 2018-06-11 2019-01-15 吉林大学 一种发动机三效催化转化器快速起燃装置

Also Published As

Publication number Publication date
JP2022537838A (ja) 2022-08-30
KR20220048466A (ko) 2022-04-19
WO2020260337A1 (fr) 2020-12-30
US20220105465A1 (en) 2022-04-07
DE102019209301A1 (de) 2020-12-31
CN114008308A (zh) 2022-02-01
JP7284300B2 (ja) 2023-05-30

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