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WO2019033134A1 - Système de moteur à combustion interne comprenant un dispositif de post-traitement des gaz d'échappement et un dispositif de préchauffage et procédé de fonctionnement correspondant - Google Patents

Système de moteur à combustion interne comprenant un dispositif de post-traitement des gaz d'échappement et un dispositif de préchauffage et procédé de fonctionnement correspondant Download PDF

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Publication number
WO2019033134A1
WO2019033134A1 PCT/AT2018/000067 AT2018000067W WO2019033134A1 WO 2019033134 A1 WO2019033134 A1 WO 2019033134A1 AT 2018000067 W AT2018000067 W AT 2018000067W WO 2019033134 A1 WO2019033134 A1 WO 2019033134A1
Authority
WO
WIPO (PCT)
Prior art keywords
internal combustion
combustion engine
exhaust
gas
arrangement
Prior art date
Application number
PCT/AT2018/000067
Other languages
German (de)
English (en)
Inventor
Ludwig Bürgler
Klaus HADL
Original Assignee
Avl List 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
Priority claimed from ATA50684/2017A external-priority patent/AT520414B1/de
Priority claimed from AT503322018A external-priority patent/AT521241A1/de
Application filed by Avl List Gmbh filed Critical Avl List Gmbh
Priority to DE112018003650.2T priority Critical patent/DE112018003650A5/de
Publication of WO2019033134A1 publication Critical patent/WO2019033134A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; 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
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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
    • F01N3/033—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 in combination with other devices
    • F01N3/035—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 in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate 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
    • 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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • 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
    • F01N3/30—Arrangements for supply of additional air
    • 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
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/32—Arrangements for supply of additional air using air pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
    • F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
    • 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
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/06—Low pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust downstream of the turbocharger turbine and reintroduced into the intake system upstream of the compressor
    • 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
    • F02M26/34—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with compressors, turbines or the like in the recirculation passage
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
    • 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • F01N2410/03—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device in case of low temperature
    • 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
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/11—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hybrid vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1602—Temperature of exhaust gas apparatus
    • 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
    • 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
    • Y02T10/40—Engine management systems

Definitions

  • the invention relates to an arrangement and a method according to the preambles of the independent claims.
  • Hybrid vehicles also have the problem that not only the
  • the object of the invention is therefore to provide an arrangement which allows efficient preheating of at least one component of an exhaust aftertreatment system, in particular in fired and / or unbefeuerter internal combustion engine. Another object is to provide a method by which at least one component of an exhaust aftertreatment system can be heated efficiently.
  • the invention particularly relates to an arrangement of an internal combustion engine with an exhaust aftertreatment system and a preheater, wherein the preheater for preheating at least one component of
  • Exhaust after-treatment system in particular in fired and / or unbe85ter internal combustion engine, is set up. It is preferably provided that the preheating a heating element and a conveyor device for generating the exhaust aftertreatment system
  • heated gas stream includes.
  • the conveying device is a conveying device of the internal combustion engine, which also in the regular operation of
  • Internal combustion engine can be operated or deactivated in normal operation of the internal combustion engine.
  • the conveying device is a turbocharger of the internal combustion engine, a fan of the internal combustion engine, a compressor of the internal combustion engine or a turbocharger driven by a separate drive of the internal combustion engine or an e-booster of the internal combustion engine, or that the conveying device is a separate compressor separate blower, or a separate compressor.
  • the invention relates to an arrangement
  • the internal combustion engine and the exhaust aftertreatment system comprising a gas channel arrangement for transporting the combustion gases
  • gas channel arrangement comprises at least one intake-side gas channel, in particular one or more air intake channels,
  • gas channel arrangement comprises at least one exhaust gas channel, in particular one or more exhaust gas channels,
  • the gas duct arrangement is guided, in particular depending on the piston or valve position, through the combustion chamber or through the combustion chambers of the internal combustion engine,
  • the gas channel arrangement optionally at least one
  • Return channel as in particular an exhaust gas recirculation channel or a
  • High pressure exhaust gas return passage comprises.
  • Internal combustion engine that is arranged on the suction side, and the generated by the preheating, heated gas flow over a bypass line such as in particular via the return duct to the combustion chamber or on all combustion chambers of the internal combustion engine over and is guided in the exhaust aftertreatment system.
  • a recirculation line for recirculation of the heated gas flow generated by the preheating device is provided, that the recirculation line along the gas flow to the at least one
  • the cooling line for supplying cooling gas opens into the exhaust-gas channel.
  • the invention relates to a method for operating a
  • Preheater heated gas stream is promoted using a conveyor through the exhaust aftertreatment system.
  • the gas stream is conveyed through a gas channel arrangement, wherein the gas channel arrangement is arranged for transporting the combustion gases through the internal combustion engine and through the exhaust aftertreatment system.
  • the gas stream is heated in the course of the gas channel arrangement after the internal combustion engine, ie exhaust side, of the preheater, in particular of the heating element of the preheater.
  • the gas flow in the course of the gas channel arrangement in front of the internal combustion engine, ie suction side, is heated by the preheater, in particular by the heating element of the preheater, and that of the preheating generated by the heated gas flow via a bypass line as in particular via the return channel the combustion chamber or at all combustion chambers of the internal combustion engine is passed over in and through the exhaust aftertreatment system.
  • the heated gas flow through a
  • Gas channel arrangement is conveyed into the recirculation line, and that the gas flow along the gas channel arrangement before the at least one to be heated
  • Component of the exhaust aftertreatment system is conveyed from the recirculation line in the gas channel assembly.
  • Exhaust after-treatment system is cooled in a cooling line.
  • the arrangement in particular the preheating device, comprises at least one conveying device and a heating element. It is preferably provided that a plurality of heating elements are provided.
  • the heating of the components of the exhaust aftertreatment system takes place indirectly. This means in particular that not the component or its components are heated directly, but that a hot gas stream is generated, which is passed through these components.
  • the preheated gas stream is conveyed through those sections of the gas channel arrangement, through which the exhaust gas of the internal combustion engine is also passed through in normal operation. Thereby the preheated gas stream comes into contact with those elements and / or surfaces of the exhaust aftertreatment system, which act catalytically active or must be preheated to improve the efficiency of the exhaust aftertreatment system. This significantly reduces the preheating time.
  • the heating of the components of the exhaust aftertreatment system takes place directly.
  • a further reduction of the preheating time can be achieved in that only those components of the arrangement come into contact with the heated gas flow, which must be flowed through in order to heat the components to be preheated
  • At least one bypass line is provided, can be bridged by the non-heated components of the arrangement, so that the heated gas stream is passed past these components.
  • an oxidation catalytic converter is provided, the preheating device being suitable and / or adapted for this oxidation catalytic converter
  • Preheat temperature of at least 100 ° C.
  • a NO x storage catalyst or a passive NO x adsorber is provided, wherein the preheating device is suitable and / or adapted to preheat this NOx storage catalyst or the passive NO x adsorber to a temperature of at least 100 ° C.
  • the preheating device is suitable and / or adapted to preheat this component to at least 80 ° C.
  • suction-side gas channel is arranged, and that also a heating element in front of the Internal combustion engine, ie at the suction-side section of the
  • Gas channel arrangement is arranged.
  • the conveying device is arranged along the suction-side gas channel, but the heating element along the exhaust side
  • Gas channels is arranged.
  • a bypass line for bypassing the combustion chambers can be omitted, since the heating takes place only after these combustion chambers anyway.
  • a bypass line for bypassing a component of a compressor, in particular an exhaust-gas turbocharger may be provided.
  • a recirculation line is provided, through which the already performed by the exhaust aftertreatment system heated
  • Gas flow is directed back into a region of the gas channel assembly, the components to be heated or the component to be heated
  • Exhaust gas aftertreatment plant is upstream.
  • the heated gas stream is not lost through the exhaust, but can be recirculated and possibly reheated. This can further improve the efficiency of the preheating.
  • the recirculation line opens into the intake-side gas channel.
  • a cooling line is provided, which opens into any portion of the gas channel arrangement to a cooling or a temperature control or control of the components of
  • a cooling line for supplying cooling gas opens into the exhaust gas channel. If necessary provided that a cooling line via a conveying device introduces a gas into the exhaust-gas channel, wherein the temperature of this gas is less than the temperature of the gas located in the exhaust-gas channel.
  • Exhaust after-treatment system is preceded by at least one heating element through which the gas flow generated by the conveyor is or is heated.
  • a heating element is arranged in front of each component of the exhaust aftertreatment system to be heated.
  • the or each heating element may, for example, be an electrical heating element for heating the delivered gas flow.
  • the heated gas flow is a heated air flow or contains an air flow, ambient air being sucked in to form the heated air flow, conveyed through a conveyor device through the gas channel arrangement and thereby heated via at least one, preferably several, heating elements.
  • the heated gas stream is a heated exhaust gas stream or contains an exhaust gas stream, wherein for the formation of the heated exhaust gas stream, for example, located in the internal combustion engine and / or in the exhaust aftertreatment system exhaust gas via a
  • Conveying device funded by the gas channel assembly and thereby heated by at least one, preferably a plurality of heating elements.
  • the arrangement also comprises an electric drive in addition to an internal combustion engine, so that a hybrid drive is formed.
  • the conveying device is a compressor of the
  • Compressor of the internal combustion engine or driven by a separate drive turbocharger of the internal combustion engine or an e-booster of the internal combustion engine.
  • the conveyor device is a separate compressor, a separate fan, or a separate compressor.
  • the conveyor device is a fan of the vehicle containing the arrangement, such as the heater fan of the vehicle.
  • the preheater a separate, preferably independent of the internal combustion engine
  • Preheating device is and in particular that the internal combustion engine is not part of the preheater
  • the preheater activated.
  • the preheater is always in operation when the temperature of the exhaust aftertreatment system is below a certain threshold.
  • a heating element is activated which heats the gas conveyed through the gas channel arrangement.
  • This heated gas is subsequently conveyed through the exhaust aftertreatment system and in particular through those components of the exhaust aftertreatment system which are to be preheated.
  • a conveying device is preferably activated.
  • This conveyor device can be for example a conveyor device of the internal combustion engine or a separate conveyor device.
  • the conveyor device is a fan or compressor through which or a gas can be conveyed through the gas channel arrangement.
  • this gas is ambient air and / or exhaust gas, which is sucked and heated by a heating element is transported through the exhaust aftertreatment system. Is the necessary operating temperature reached, which in turn, for example, via a temperature sensor, in particular a real or modeled
  • Temperature sensor can be determined, so the preheater can optionally be disabled.
  • modeled sensors employing a temperature model in which other values for determining the temperature, e.g. the power input, the heat input into engine or exhaust aftertreatment components or similar values.
  • Internal combustion engine is inactive or at least towed unfired.
  • Exhaust after-treatment system also necessary for a cold start, especially if the vehicle or the internal combustion engine after a certain time in which the internal combustion engine was not operated, is restarted.
  • the preheated gas carried by the exhaust aftertreatment system may be exhausted through the exhaust to the environment.
  • a recirculation line may be provided, through which the heated gas after the exhaust aftertreatment system or after being heated
  • Component is again introduced into the area in front of the component to be heated.
  • At least one component bypassing channel is provided, in which the preheating device is arranged.
  • the channel bypassing at least one component is the bypass channel
  • Gas channel arrangement formed, wherein in the gas channel arrangement in particular several components of the exhaust aftertreatment system preferably in
  • Flow direction are arranged in a single exhaust duct.
  • the channel bypasses that component or components that are to be heated. If two or more exhaust aftertreatment components are to be heated, it can advantageously be provided that the duct bypasses all these components.
  • the one or more components of the exhaust aftertreatment arrangement are in the
  • Gas channel arrangement arranged.
  • the gas channel arrangement may also comprise two or more exhaust gas channels, in which the components of the
  • Exhaust after-treatment system are arranged. It can be provided that the channel bypasses one or more components, which are arranged in one, two or more exhaust ducts.
  • a small specific heat capacity and is advantageously formed as short as possible, so that the element to be heated can be heated in a short time.
  • the channel can be formed thermally insulated with advantage.
  • the following components can be arranged in the flow direction downstream of the engine: an oxidation catalyst (DOC or LNT or PNA), a catalyst,
  • SDPF Particulate filter
  • SCR catalyst selective catalytic reduction
  • Elements are preferably designed and arranged for a diesel engine. However, it may also be favorable if the internal combustion engine has an Otto or gas engine, with corresponding exhaust aftertreatment components.
  • the channel is arranged and configured in particular for bypassing the first catalyst, which is designed, for example, for selective catalytic reduction. That is, the passage branches downstream of the first catalyst from the gas passage arrangement, with a portion of the exhaust gas, by means of the conveyor, passing through the passage where it is heated by the heating element. Upstream of the first catalyst to the heated part of the gas flow is again in the
  • Gas channel arrangement ie returns to the gas stream out there.
  • the conveyor is designed in the context of the invention, in particular as a fan, but can also be any other now Hughessart.
  • Heating device may be, for example, an electric or electrically operated heater. In principle, two or more heating devices can also be provided.
  • the gas flow is understood to mean a gas, in particular either exhaust gas or air or an exhaust air-air mixture, which is gaseous.
  • the conveying device is a separate conveying device, which is operable independently of the control operation of the internal combustion engine or which is deactivated in the normal operation of the internal combustion engine.
  • the conveyor is a fan or a
  • Heavy duty blower is.
  • the conveyor is operable even at low engine mass flows.
  • the conveying device is a separate compressor, a separate blower, a separate compressor or a separate pump. This ensures that a predefined and / or determinable amount of gas can be branched off via the channel from the gas channel arrangement and can be returned to the gas channel arrangement via the channel. It may also be favorable if the conveying device and the heating element are designed as an integral component. That is, the branched gas is conveyed by a single element through the channel and heated therein.
  • the conveyor may be formed, for example, as a fan with an electric heating element. So a number of the required elements are reduced.
  • the heating element is arranged downstream or upstream of the conveyor.
  • a portion of the exhaust gas flows in an arrangement of the heating element downstream of the conveyor in the channel in the flow direction first through the conveyor and then through the
  • Heating element In principle, however, it may also be beneficial if the
  • Conveyor is arranged downstream of the heating element, wherein a portion of the gas in the channel then flows in the flow direction first through the heating element and then through the conveyor.
  • At least one first reducing agent injector is provided for introducing a reducing agent into the gas channel arrangement, wherein the channel opens into the gas channel arrangement upstream of the reducing agent injector.
  • the reducing agent injector is for introducing a reducing agent such. Urea or urea solution formed and arranged, said this
  • Component is upstream.
  • the bypass can be designed and arranged for any exhaust aftertreatment component or the composite of a plurality of exhaust aftertreatment components.
  • the further aim is achieved if, in a method of the type mentioned above, a heating element of the preheating device that is heated by at least one channel disposed in at least one component is under
  • the preheater activated.
  • the preheater is always in operation when the temperature of the exhaust aftertreatment system is below a certain threshold.
  • a heating element is activated which heats the gas conveyed through the gas channel arrangement.
  • This heated gas is subsequently conveyed through the exhaust aftertreatment system and in particular through those components of the exhaust aftertreatment system which are to be preheated.
  • a conveying device is preferably activated.
  • This conveyor device can be for example a conveyor device of the internal combustion engine or a separate conveyor device.
  • the conveying device is a fan, a compressor or a pump through which or a gas through the
  • Gas channel arrangement can be transported.
  • this gas is ambient air and / or exhaust, which is sucked and heated by a heating element through the
  • Heating element are arranged in a surrounding the component to be heated channel.
  • Temperature sensor can be determined, so the preheater
  • modeled sensors can be used in which a temperature model is stored, in which other values for determining the temperature, such as the power consumption, the heat input into engine or exhaust aftertreatment components or similar values are received. Preheating happens for example in hybrid vehicles after a long drive phase in which only the electric motor is active and the
  • Internal combustion engine is inactive or at least towed unfired.
  • Exhaust after-treatment system also before and / or during a cold start necessary, especially if the vehicle or the internal combustion engine after a certain time in which the internal combustion engine was not operated, is restarted.
  • the heated gas stream is conveyed from the channel into the gas channel arrangement upstream or downstream of the component of the exhaust aftertreatment system to be heated.
  • Fig. 7 shows a seventh variant of an inventive arrangement
  • FIG. 8 shows an eighth variant of an arrangement according to the invention.
  • Figures 1 to 5 show different possible arrangements of a
  • Fig. 1 shows a schematic representation of an arrangement of a
  • the exhaust aftertreatment system 2 comprises several components
  • a component 4 which can be preheated by the preheater 3.
  • a component 4 may be embodied as an SCR catalytic converter, which upstream comprises a reducing agent injector 30 for introducing a reducing agent, such as e.g. Urea or urea solution is upstream.
  • a reducing agent injector 30 for introducing a reducing agent, such as e.g. Urea or urea solution is upstream.
  • the preheating device 3 comprises at least one conveying device 6, which is designed as a fan in the present embodiment.
  • This fan is according to this embodiment, a separate fan, which is preferably not active in the regular operation of the internal combustion engine 1. Rather, this blower, so the conveyor 6, only for the purpose of preheating the components 4 of the exhaust aftertreatment system 2 is used.
  • the arrangement comprises a gas channel arrangement 7.
  • the gas channel arrangement 7 comprises a suction-side gas channel 8 and an exhaust-side gas channel 9, the suction side and the exhaust side being to be understood here with regard to the combustion chambers 10.
  • the combustion chambers 10 may be part of the gas channel arrangement 7, since combustion gases, in particular the intake air, are conveyed through the combustion chambers 10.
  • the internal combustion engine 1 of the embodiment according to FIG. 1 comprises a return duct 11, which in regular operation of the internal combustion engine 1 is or acts as an exhaust gas recirculation channel or a high-pressure exhaust gas recirculation channel.
  • this return duct 1 1 is used as a bypass line 12 to the air flow, past the combustion chambers 10, to
  • the gas stream conveyed during the preheating follows the drawn arrows from the intake-side gas duct 8 via the bypass line 12 past the combustion chambers 10 into the exhaust-gas channel 9, from there on to a first heating element 5 and a first component 4 of the exhaust gas after-treatment system 2
  • the heated gas stream exits the assembly through the exhaust 14, and is there to the
  • an exhaust throttle valve 15, between the compressor of the turbocharger 16 and the charge air cooler 22, a throttle valve 20 is provided.
  • this arrangement also for cooling the
  • Exhaust after-treatment system 2 are used with ambient air with deactivated heating elements 5, if the temperature of the exhaust aftertreatment components, for example, exceeds a Schwellwerl.
  • FIG. 2 shows a configuration similar to FIG. 1, wherein instead of using a separate blower as the conveying device 6, a compressor or a blower of the internal combustion engine 1 is used as the conveying device 6.
  • This conveying device 6 is embodied in particular as an electrically driven compressor, such as a so-called "e-booster” or as an electrically operated compressor
  • the remaining components and their mode of operation correspond to the components and the mode of operation of FIG. 1.
  • the conveying device 6 conveys a gas flow the gas channel arrangement 7, in particular by the suction side Gas channel 8, through the acting as a bypass line 12 return channel 1 1 further into the exhaust gas channel 9 and thereby further through the
  • Exhaust after-treatment system 2 is preceded by at least one heating element 5, so that the heated gas stream is conveyed through the exhaust aftertreatment system 2 in order to preheat the same.
  • the gas stream leaves the exhaust aftertreatment system 2 through the exhaust 14 and is discharged there to the environment.
  • a charge air valve 21 is arranged in the form of a DreiVZweiwegeventils at the point where the charge air to the "E-booster" branched off or the intercooler 22 is feasible.
  • Exhaust gas recirculation valve in particular the so-called high-pressure EGR valve 23 of a high-pressure exhaust gas recirculation, be open when deactivated internal combustion engine 1 so that the return channel 1 1 can act as a bypass line 12.
  • Fig. 3 shows a similar configuration as Fig. 2, but in addition a recirculation line 13 is provided in the low pressure region.
  • Components 4 in turn, at least one heating element 5 is provided.
  • at least one heating element 5 is provided.
  • Exhaust after-treatment system 2 at least temporarily actuates the exhaust throttle valve 15, which is closed, so that the heated gas flow does not exit from the exhaust 14, but via the recirculation line 13 in the low pressure area again to the preheater 3, in particular to the conveyor 6 and the heating element 5, is passed.
  • a low-pressure EGR valve 24 at least one first control element 25 in the form of a three / two-way valve is provided in the embodiment of FIG. 3, which can be actuated so that the heated gas flow through the low-pressure exhaust gas recirculation line, in which an EGR cooler 27 is arranged , in the recirculation line 13 and from there back to the
  • the recirculation line 13 is a separate Line, which is not necessary for the operation of the internal combustion engine 1.
  • the recirculation line 13 is provided, in particular, for bypassing the intake-side part of a turbocharger 16 designed as a compressor.
  • Recirculation line 13 can be omitted.
  • a second actuator 26 is preferably provided, which may be embodied for example as a throttle valve.
  • the first control element 25, optionally also the throttle valve 20, can or can be omitted in such a variant.
  • Gas channel arrangement 7 to circulate, whereby the efficiency of the preheater 3 is improved, since the heat is not discharged through the exhaust 14 to the outside.
  • the exhaust throttle valve 15 is opened completely or partially, so that the heated gas flow wholly or partially exits through the exhaust 14.
  • an already existing compressor or a blower of the internal combustion engine 1 serves as a conveying device 6.
  • This conveying device 6 of the internal combustion engine 1 can be, for example, a compressor, in particular an electrically assisted turbocharger 16 Compressor and preferably an e-booster of the internal combustion engine 1 be.
  • FIG. 4 shows a further configuration, which substantially coincides with the configuration of FIG. 3, wherein additionally a radiator bypass line 17 is provided past the EGR cooler 27.
  • the radiator bypass line 17 is a bypass line through which the gas flow can be conducted past the EGR cooler 27 of the exhaust gas recirculation line. By bypassing the EGR cooler 27 through the radiator bypass line 17, the heated gas flow is not passed through the EGR cooler 27, thus further improving the efficiency of the device.
  • the operation of the arrangement of FIG. 4 corresponds with the exception of
  • a separate, in particular an additional line may be provided to promote the air flow, past the combustion chambers 10, the exhaust aftertreatment system 2.
  • a dot-dash additional line 120 is shown in FIG. 4, which branches off immediately downstream of the conveying device 6 designed there as an e-booster and discharges into the exhaust pipe after the combustion chambers immediately downstream of the turbine of the turbocharger 16.
  • the additional 3/2-way valves which are possible at the points of discharge are not shown for reasons of clarity.
  • FIG. 5 shows a further embodiment of an arrangement according to the invention.
  • This includes an internal combustion engine 1 with an exhaust aftertreatment system 2 and a preheater 3, wherein the preheater 3 at least one
  • Heating element 5 and a conveying device 6 comprises.
  • the conveying device 6 is arranged in the course of the exhaust gas channel 9 of the gas channel arrangement 7.
  • a targeted bypass of the combustion chambers 10 of the internal combustion engine 1 is therefore not necessary in the present case. Rather, a gas flow from the
  • Conveying device 6 e.g. sucked from the environment of the internal combustion engine 1 and funded by the exhaust aftertreatment system 2. In this case, coming from the conveyor device 6 gas channel opens into the
  • a heating element 5 or more heating elements 5 there is a heating of the gas stream.
  • the gas stream is then conveyed through the components 4 of the exhaust aftertreatment system 2 to be heated.
  • a plurality of adjusting elements are additionally provided by which a recirculation of the gas flow for heating the
  • Exhaust after-treatment system 2 can be effected in order to achieve a faster heating and increasing the efficiency. This is a connection between the leading to the exhaust pipe 1 and one with the environment of
  • Internal combustion engine 1 connected supply line 18 of the conveying device 6, wherein in this connection, a third adjusting element 28 is arranged. Furthermore, in the supply line 18 of the conveyor, upstream of the point of entry of the mentioned compound, a fourth switching element 29 is arranged. If the third adjusting element 28 is brought into a passage position and at the same time the
  • one or more adjusting elements in particular the exhaust throttle valve 15 are provided such that the heated gas flow partially or - with the third actuator 28 and the low pressure EGR valve 24 in the closed position - completely through the exhaust 14th exit.
  • the supply line illustrated in the present embodiments of FIGS. 5 and 6 may also function as a cooling line.
  • a cooling line may optionally be provided in all embodiments.
  • the cooling line may be formed, for example, as a simple fresh air supply with a fourth actuator 29 and optionally with a fan. Through this cooling line can be done a reduction in the temperature of the heated gas stream. This may, for example, provide an advantage in controlling or controlling the temperature of the gas stream.
  • the cooling line can be used in normal operation or in the case of a fired and / or non-fired internal combustion engine 1 for cooling components 4 of the exhaust aftertreatment system 2.
  • FIGS. 1 to 6 it is optionally possible to provide an additional drive 19, such as, for example, an electric motor.
  • the adjusting elements of FIGS. 1 to 5 may be, for example, valves, shut-off elements or flaps.
  • exhaust aftertreatment elements in the figures or in the description may be located close to the engine and / or in the underfloor area and thus further away from the engine.
  • the position of the components plays no or a minor role.
  • additional or fewer exhaust aftertreatment components may be provided over the illustrated embodiments.
  • the heating element does not have to be directly attached to a component of the
  • Exhaust aftertreatment system may be arranged, but may optionally be arranged in any region of the gas channel arrangement in which the gas stream to be heated is conveyed.
  • the heating element close to the
  • Throttle or two throttle with 3/2-way valves be executed.
  • Fig. 7 shows an arrangement of an internal combustion engine 1 with a
  • the exhaust aftertreatment system 2 comprises a component 4 and a gas channel arrangement 7, wherein the component 4 is arranged in the gas channel arrangement 7.
  • a component 4 bypassing channel 31 in which a preheater 3 is arranged.
  • the preheater 3 is designed for preheating the component 4, wherein the component 4 is formed in this embodiment as an SCR catalyst.
  • the preheater 3 is for preheating in the gas channel assembly. 7
  • Internal combustion engine 1 set up. This comprises a heating element 5 and a conveying device 6, wherein the heating element 5 in the channel 31 downstream of the
  • Conveyor 6 is arranged. However, the arrangement can also be reversed, wherein the heating element 5 is then arranged in the channel 31 upstream of the conveying device 6.
  • an oxidation catalytic converter 32, an SDPF 33 and another SCR catalytic converter 34 are exemplary
  • Reductant injector 30 is provided for introducing a urea into the gas channel assembly 7, wherein the channel 31 upstream of the reducing agent injector 30 opens into the gas channel assembly 7 and the heated gas flow into this, more precisely in or in front of the SCR catalyst 4 introduces.
  • the gas channel arrangement 7 can also be any other
  • Exhaust after-treatment components include, and are not limited to, a diesel specific arrangement.
  • the arrangement comprises the following components:
  • Combustion chamber 10 intercooler 22, turbocharger 16, EGR cooler 27, suction-side gas channel 8, throttle valve 15, return channel 35, exhaust gas channel 9, exhaust 14, further injector 36.
  • Fig. 8 shows the same embodiment as Fig. 7, wherein additionally also a shut-off device 15 is shown, which allows a closing of the channel 31.
  • Component (s) 4 bypassing channel 31 is provided, which may be formed in particular as a recirculation line 13.
  • This channel 31 branches off in each case from the exhaust-gas channel 9 and also flows back into the exhaust-gas channel 9. The branch takes place, for example, downstream of the to be heated
  • Component (s) 4 wherein upstream of the same component (s) 4, the gas flow is returned to the exhaust gas channel 9 again.
  • Embodiments are the conveying device 6 and optionally also a
  • Heating element 5 is arranged in the course of the channel 31.
  • the channel 31 can preferably be partially or completely closed via a shut-off device, so that it can be prevented if necessary that the gas flowing through the exhaust gas channel 9 enters the channel 31.
  • a channel is preferably provided for the recirculation of the heated gas flow generated by the preheater 3, wherein the channel branches off along the gas flow to the at least one component 4 of the exhaust aftertreatment system 2 to be heated, and along the gas flow before the at least one to be heated Component 4 of the exhaust aftertreatment system 2 opens into the gas channel arrangement 7.
  • this allows a partial flow to be recirculated.
  • Such a channel 31 may optionally also in the
  • a plurality of channels 31 may be provided according to Figures 6, 7 and 8, each of which one or more components 4 are formed immediately and along the course of a heating element 5 and / or a conveyor device 6 is or are arranged. As a result, different components 4 can be heated independently of each other.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

L'invention concerne un procédé et un système de moteur à combustion interne (1) comprenant un dispositif de post-traitement des gaz d'échappement (2) et un dispositif de préchauffage (3), ce dispositif de préchauffage (3) étant conçu pour préchauffer au moins un composant (4) du dispositif de post-traitement des gaz d'échappement (2) lorsque le moteur à combustion interne (1) n'est pas allumé. Le dispositif de préchauffage (3) comprend un élément de chauffage (5) et un dispositif de transport (6) conçu pour générer un flux gazeux chauffé traversant dispositif de post-traitement des gaz d'échappement (2).
PCT/AT2018/000067 2017-08-17 2018-08-17 Système de moteur à combustion interne comprenant un dispositif de post-traitement des gaz d'échappement et un dispositif de préchauffage et procédé de fonctionnement correspondant WO2019033134A1 (fr)

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DE112018003650.2T DE112018003650A5 (de) 2017-08-17 2018-08-17 Anordnung einer verbrennungskraftmaschine mit einer abgasnachbehandlungsanlage und einer vorheizvorrichtung sowie verfahren zu deren betrieb

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ATA50684/2017 2017-08-17
ATA50684/2017A AT520414B1 (de) 2017-08-17 2017-08-17 Anordnung einer Verbrennungskraftmaschine mit Abgasnachbehandlungsanlage und Vorheizvorrichtung
ATA50332/2018 2018-04-19
AT503322018A AT521241A1 (de) 2018-04-19 2018-04-19 Anordnung und Verfahren zum Betrieb einer Verbrennungskraftmaschine mit einer Abgasnachbehandlungsanlage

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FR3098546A1 (fr) * 2019-07-09 2021-01-15 Psa Automobiles Sa Procede de chauffage d'un catalyseur de moteur thermique
WO2021038146A1 (fr) * 2019-08-29 2021-03-04 Psa Automobiles Sa Systeme et procede de prechauffage pour catalyseur trois voies
FR3100839A1 (fr) * 2019-09-13 2021-03-19 Psa Automobiles Sa Ensemble comprenant un moteur à combustion interne avec un compresseur électrique et un élément chauffant
FR3101376A1 (fr) * 2019-09-27 2021-04-02 Continental Automotive Procédé de chauffage d’un catalyseur chauffé électriquement de véhicule automobile
FR3102210A1 (fr) * 2019-10-21 2021-04-23 Renault S.A.S. Procédé de MISE EN ACTION D’UN système DE POST-TRAITEMENT DE MOTEUR A COMBUSTION INTERNE ET DISPOSITIF ASSOCIE
FR3106618A1 (fr) * 2020-01-28 2021-07-30 Psa Automobiles Sa Ligne d’echappement de moteur thermique comprenant un systeme de depollution et un systeme de prechauffage dudit systeme de depollution
FR3109802A1 (fr) * 2020-04-30 2021-11-05 Renault S.A.S Chauffage de système de dépollution de moteur thermique comportant un e-turbo
WO2022112014A1 (fr) * 2020-11-27 2022-06-02 Vitesco Technologies GmbH Procédé et dispositif pour chauffer électriquement un convertisseur catalytique
CN116096986A (zh) * 2020-08-05 2023-05-09 梅赛德斯-奔驰集团股份公司 用于机动车的内燃机以及机动车
FR3130318A1 (fr) * 2021-12-10 2023-06-16 Faurecia Systemes D'echappement Ligne d’échappement
US20230287819A1 (en) * 2020-08-05 2023-09-14 Mercedes-Benz Group AG Combustion Engine for a Motor Vehicle, and Motor Vehicle
US11814995B2 (en) 2019-11-26 2023-11-14 Cummins Inc. Engine aftertreatment recycling apparatus, and system and method using same
WO2024160867A1 (fr) * 2023-02-03 2024-08-08 Tenneco Gmbh Système de post-traitement de gaz d'échappement avec une alimentation en air secondaire

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DE102015015794A1 (de) * 2015-12-02 2016-08-11 Daimler Ag Verfahren zum Aufheizen einer Abgasnachbehandlungseinrichtung eines Kraftfahrzeugs, insbesondere eines Hybridfahrzeugs

Cited By (18)

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Publication number Priority date Publication date Assignee Title
FR3098546A1 (fr) * 2019-07-09 2021-01-15 Psa Automobiles Sa Procede de chauffage d'un catalyseur de moteur thermique
WO2021038146A1 (fr) * 2019-08-29 2021-03-04 Psa Automobiles Sa Systeme et procede de prechauffage pour catalyseur trois voies
FR3100275A1 (fr) * 2019-08-29 2021-03-05 Psa Automobiles Sa Systeme et procede de prechauffage pour catalyseur trois voies
FR3100839A1 (fr) * 2019-09-13 2021-03-19 Psa Automobiles Sa Ensemble comprenant un moteur à combustion interne avec un compresseur électrique et un élément chauffant
FR3101376A1 (fr) * 2019-09-27 2021-04-02 Continental Automotive Procédé de chauffage d’un catalyseur chauffé électriquement de véhicule automobile
FR3102210A1 (fr) * 2019-10-21 2021-04-23 Renault S.A.S. Procédé de MISE EN ACTION D’UN système DE POST-TRAITEMENT DE MOTEUR A COMBUSTION INTERNE ET DISPOSITIF ASSOCIE
US11814995B2 (en) 2019-11-26 2023-11-14 Cummins Inc. Engine aftertreatment recycling apparatus, and system and method using same
FR3106618A1 (fr) * 2020-01-28 2021-07-30 Psa Automobiles Sa Ligne d’echappement de moteur thermique comprenant un systeme de depollution et un systeme de prechauffage dudit systeme de depollution
FR3109802A1 (fr) * 2020-04-30 2021-11-05 Renault S.A.S Chauffage de système de dépollution de moteur thermique comportant un e-turbo
US20230287819A1 (en) * 2020-08-05 2023-09-14 Mercedes-Benz Group AG Combustion Engine for a Motor Vehicle, and Motor Vehicle
CN116096986A (zh) * 2020-08-05 2023-05-09 梅赛德斯-奔驰集团股份公司 用于机动车的内燃机以及机动车
US12129780B2 (en) * 2020-08-05 2024-10-29 Mercedes-Benz Group AG Combustion engine for a motor vehicle, and motor vehicle
EP4193044B1 (fr) * 2020-08-05 2025-02-26 Mercedes-Benz Group AG Moteur à combustion interne pour véhicule automobile, et véhicule automobile
CN116583661A (zh) * 2020-11-27 2023-08-11 纬湃科技有限责任公司 用于电加热废气催化转化器的方法和设备
WO2022112014A1 (fr) * 2020-11-27 2022-06-02 Vitesco Technologies GmbH Procédé et dispositif pour chauffer électriquement un convertisseur catalytique
US11905871B2 (en) 2020-11-27 2024-02-20 Vitesco Technologies GmbH Method and apparatus for electrically heating a catalytic converter
FR3130318A1 (fr) * 2021-12-10 2023-06-16 Faurecia Systemes D'echappement Ligne d’échappement
WO2024160867A1 (fr) * 2023-02-03 2024-08-08 Tenneco Gmbh Système de post-traitement de gaz d'échappement avec une alimentation en air secondaire

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