EP1533489B1 - Système de traitement des gaz d'échappement d'un moteur à combustion interne, et procédé de fonctionnement d'un système de traitement des gaz d'échappement correspondant - Google Patents

Système de traitement des gaz d'échappement d'un moteur à combustion interne, et procédé de fonctionnement d'un système de traitement des gaz d'échappement correspondant Download PDF

Info

Publication number
EP1533489B1
EP1533489B1 EP04023077A EP04023077A EP1533489B1 EP 1533489 B1 EP1533489 B1 EP 1533489B1 EP 04023077 A EP04023077 A EP 04023077A EP 04023077 A EP04023077 A EP 04023077A EP 1533489 B1 EP1533489 B1 EP 1533489B1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
arrangement
flow path
treatment system
gas 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.)
Expired - Lifetime
Application number
EP04023077A
Other languages
German (de)
English (en)
Other versions
EP1533489A3 (fr
EP1533489A2 (fr
Inventor
Walter Blaschke
Günter Eberspach
Gerd Gaiser
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Publication of EP1533489A2 publication Critical patent/EP1533489A2/fr
Publication of EP1533489A3 publication Critical patent/EP1533489A3/fr
Application granted granted Critical
Publication of EP1533489B1 publication Critical patent/EP1533489B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—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
    • 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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to 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
    • F01N3/02—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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027—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 using means for regenerating the filters, e.g. by burning trapped particles 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus

Definitions

  • the present invention relates to an exhaust gas treatment system for an internal combustion engine, in particular a diesel internal combustion engine, comprising a catalyst arrangement as defined in the preamble of claim 1 and in methods for operating such an exhaust gas treatment system.
  • the exhaust gas leaving an internal combustion engine is essentially purified by the catalyst arrangement by the pollutants which are particularly harmful to the environment.
  • this exhaust gas contains high levels of nitrogen oxides and carbon monoxide, which are converted by a catalytic reaction substantially in carbon dioxide.
  • soot particles also occur in such a catalytic reaction or combustion.
  • a temperature is required which, depending on the catalyst type and the catalyst material, is in the range of at least 200-250 ° C. If the temperature of the catalyst falls below a so-called "light-off temperature" lying in this range, then a catalytic reaction which is suitable for the required pollutant reduction can no longer be maintained or can not be started. Such a fall in the temperature in the region of the catalyst can occur, for example, when the exhaust gases leaving an internal combustion engine do not transport sufficient temperature to be able to ensure a corresponding heating of the catalytic converter. This may be the case, for example, in idling mode, in which the temperature of the exhaust gases leaving the internal combustion engine is in the range of approximately 150.degree. Particularly critical with regard to a suitable catalytic reaction are therefore the starting phase of an internal combustion engine or phases during the journey, in which low load is driven, so for example in longer-lasting downhill or slow Dahinrollen on highways or the like.
  • an exhaust gas treatment system according to the preamble of claim 1 is known.
  • a burner is arranged in this exhaust gas treatment system so that it projects with its housing partially into the exhaust gas flow path and is open there in the region of a burner tube.
  • An ignition device is provided on the housing.
  • a fuel supply and a combustion air supply are also provided to generate in the housing a combustible mixture which is ignited by activation of the ignition device.
  • the EP 1 354 852 A2 shows an evaporator arrangement in which the hydrocarbon to be evaporated is introduced into a porous evaporator medium.
  • This evaporator assembly is intended for a reformer, in which from the porous. Evaporating medium evaporating out of hydrocarbon a reformate is produced.
  • At least one evaporator / burner arrangement By providing at least one evaporator / burner arrangement, it can be ensured that when the temperature of the exhaust gases flowing from the internal combustion engine in the direction of the catalyst arrangement is insufficient to start or maintain the autothermal catalytic reaction there, an additional combustion is started is, by which on the one hand combustion exhaust gases are generated, which have a very high temperature and on the other hand, the incoming from the engine exhaust gases can be heated, so that by appropriate heat transfer then the temperature of the catalyst assembly and the catalyst material thereof via the so-called light-off Temperature can be raised or can be maintained above this temperature.
  • the evaporator / burner arrangement to be provided according to the invention can be operated, for example, in such a way that only liquid hydrocarbon, that is to say generally fuel, is evaporated in order to supply it to the exhaust gases to contribute and thus effect an improved catalytic reaction.
  • the heater may be an electrically operable heater, so it may, for example, a Schuetzlhunt, a heating coil or the like. include.
  • the evaporator medium is provided at least in a bottom region of the substantially cup-shaped housing arrangement and the heating device is provided in the bottom region of the housing arrangement.
  • the housing assembly may face the bottom region an opening for exit of the hydrocarbon vapor generated in the vaporization / combustion chamber to the exhaust gas flow path and / or the combustion products generated in the vaporization / combustion chamber Has exhaust flow path.
  • the inventively provided evaporator / burner assembly requires oxygen to burn the hydrocarbon vapor generated therein can.
  • the residual oxygen transported into the exhaust gases flowing in from the internal combustion engine can be used, so that no additional combustion air blower or the like can be used. must be provided.
  • a peripheral wall of the housing assembly protrudes into the exhaust gas flow path and having an exhaust gas passage opening arrangement.
  • a first temperature sensor arrangement is provided for detecting a temperature of the exhaust gases leaving an internal combustion engine in the exhaust gas flow path upstream of the catalyst arrangement.
  • the first temperature sensor arrangement be provided upstream of the at least one evaporator / burner arrangement is.
  • a particle filter arrangement can be provided in the exhaust gas flow path downstream of the catalyst arrangement.
  • aspect of the additional heating of the exhaust gases emitted from the engine is particularly important because thus even if the exhaust gas temperature for maintaining or starting the autothermal catalytic reaction in the catalyst assembly is not sufficient and insofar can not be provided in the catalyst assembly required for the regeneration of the particulate filter high temperatures, by operating the evaporator / burner assembly for a suitable catalysis and as a result of which a suitable particulate filter regeneration can be provided.
  • a second temperature sensor arrangement for detecting the exhaust gas temperature in the flow path region between the catalyst arrangement and the particle filter arrangement is provided upstream of the particle filter arrangement.
  • This second temperature sensor arrangement can be used to make the decision about the operation of the evaporator / burner arrangement as a burner or as an evaporator. In fact, if it is detected that the temperature of the exhaust gases flowing into the particle filter arrangement is not sufficiently high to carry out the particle filter regeneration, this is an indication that the catalytic reaction also does not take place or does not take place in a suitable manner in the catalyst arrangement. By raising the temperature of the exhaust gases flowing in from the internal combustion engine, care can again be taken that the two mentioned cleaning processes in the catalyst arrangement or particle filter arrangement can proceed in an optimum manner.
  • the object mentioned at the outset is achieved by a method for operating an exhaust gas treatment system according to the invention.
  • a method for operating an exhaust gas treatment system when it is determined that an exhaust gas temperature of the exhaust gases leaving an internal combustion engine is below a predetermined threshold, in particular is not sufficiently high to initiate and / or sustain in the catalyst assembly an appropriate catalytic reaction comprising at least one evaporator / burner assembly at least in phase for combustion of at least a portion of the hydrocarbon vapor generated therein with residual oxygen flowing along with the exhaust gases in the exhaust gas flow path ,
  • the at least one evaporator / burner arrangement is operated at least in phases for generating zuzischendem from the exhaust gases of the internal combustion engine hydrocarbon vapor.
  • the exhaust gas treatment system 10 comprises an exhaust gas flow path 14 provided by a pipe arrangement indicated generally by 12, which leads the exhaust gases indicated by flow arrows A discharged from an unillustrated engine from the internal combustion engine to a discharge port, also not shown, where these exhaust gases subsequently move be ejected outside.
  • the exhaust gases A are passed through a generally designated 16 catalyst arrangement to a particulate filter assembly 18.
  • an exothermic catalytic reaction takes place in the catalyst arrangement 16, in which nitrogen oxides and carbon monoxide and the hydrocarbons charged to the exhaust gases A are essentially converted into carbon dioxide.
  • This soot particles produced in the internal combustion engine flow together with the exhaust gases leaving the catalyst arrangement 16 in the direction of the particle filter arrangement 18 and are mechanically filtered out there.
  • exhaust gases substantially free of soot particles and containing carbon dioxide as the main constituent are then ejected.
  • the catalyst assembly 16 if the exothermic catalytic reaction does not proceed, it is also not possible to clean the particulate filter assembly 18 from the soot particles accumulated therein.
  • This condition may occur when the exhaust gases A are at such a low temperature that the catalyst assembly 16 can not be brought to the required temperature in the range of 200-250 ° C.
  • an exhaust gas temperature of 150 ° C is generally achieved.
  • a generally designated 20 evaporator / burner assembly in the exhaust gas flow path 14 upstream of the catalyst assembly 16, a generally designated 20 evaporator / burner assembly is provided.
  • This evaporator / burner assembly 20 includes a housing assembly 21 in which an evaporation / combustion chamber 22 is formed.
  • the housing arrangement 21 is substantially pot-shaped and, in the illustrated example, comprises a housing part 24 providing essentially a peripheral wall and a housing part 28 providing the housing part 24 substantially over a bottom area 26.
  • the housing has a region opposite the floor area 26 the evaporation / combustion chamber 22 opens toward the exhaust gas flow path 14. As will be described below, in the region of this opening 30, products arising in the evaporation / combustion chamber 22 can enter the exhaust gas flow path 14.
  • passage openings 32 are provided, through which on the one hand the mentioned products from the evaporation / combustion chamber 22nd On the other hand, however, the output of the internal combustion engine exhaust gases A can enter into this evaporation / combustion chamber 22 on the other hand.
  • the bottom region 26 of the housing arrangement 21 is substantially completely covered by an evaporator medium 34 in the direction of the evaporation / combustion chamber 22.
  • This evaporator medium 34 is constructed of porous, ie liquid fuel or liquid hydrocarbon under capillary promoting material. Here come, for example, nonwoven material, braid, fabric, foam ceramic or the like. in question.
  • a heating device 38 is provided at the side facing away from the evaporation / combustion chamber 22 . In the case shown, this comprises, for example, a heating coil which is under the control of a control device, not shown, and whose excitation results in a heating of the evaporator medium 34.
  • liquid fuel ie liquid hydrocarbon, such as. Diesel fuel or gasoline
  • liquid fuel ie liquid hydrocarbon, such as. Diesel fuel or gasoline
  • the evaporator medium 34 For this feed can be provided under the control of the already mentioned control device metering pump.
  • the result of feeding such liquid fuel into the evaporator medium 34 is that this liquid fuel 34 will spread comparatively uniformly over the entire evaporator medium 34 as a result of the capillary action and in particular will also be conveyed to the side of the evaporation / firing chamber 24.
  • an ignition element 42 is provided in order in the evaporation / combustion chamber 22, a combustion of the therein to allow accumulated fuel vapor. This may extend into the evaporation / combustion chamber 22 a short distance from the evaporator medium 34.
  • the ignition element 42 may also be electrically excitable so that, for example, when the heating device 38 is energized and the ignition element 42 is energized, then the required amount of fuel vapor may be provided on the one hand and the required temperatures for starting combustion in a localized region on the other hand.
  • a so-called flame detector 44 for example in the form of a temperature sensor, may also be provided.
  • the exhaust gas treatment system 10 has two temperature sensors 46, 48 in the exhaust gas flow path 14.
  • the temperature sensor 46 is disposed upstream of the evaporator / burner assembly 20 to measure the temperature of the exhaust gases A flowing therefrom.
  • the temperature sensor 48 is disposed upstream of the particulate filter assembly 18 to detect the temperature of the exhaust gases to be flowed onto the particulate filter assembly 18.
  • the exhaust gases A flowing in the exhaust gas flow path 14 have a comparatively high temperature, which can also be detected by the temperature sensor 46.
  • the temperature will be sufficient to be able to provide sufficiently high temperatures in the catalyst arrangement 16 and to carry out the mentioned autothermal catalytic reaction there can.
  • the exhaust gases flowing in the direction of the particle filter arrangement 18 and leaving the catalyst arrangement 16 will have such a high temperature in the range of, for example, 400 ° C. and more in order to ensure continuous regeneration of the particle filter 18, ie a substantially continuous burning off of the particles there accumulated soot particles to perform.
  • the temperature sensor 48 will also provide a signal indicating that the exhaust gas temperature is sufficient for particulate filter regeneration.
  • the evaporator / burner assembly 20 shown in the figure is activated in this phase of operation so that it generates hydrocarbon vapor K and this hydrocarbon vapor K essentially by the Opening 30 discharges into the exhaust gas flow path 14.
  • the hydrocarbon vapor K will mix with the exhaust gases A and react with them on the catalyst material of the catalyst arrangement 16.
  • the required amount of hydrocarbon vapor K which can be adjusted substantially by the operation of the metering pump not described or by means of energizing the heater 38 settable Abdampfungsrate can be determined from the operating condition of the internal combustion engine, so for example the load condition and / or the speed , This operating condition will essentially also determine the composition of the exhaust gases emitted and thus also the amount of hydrocarbon vapor required.
  • the evaporator / burner assembly 20 is now operated as a burner.
  • load detection is carried out that this can be done for example by detecting the pressure before and after the particulate filter 18, wherein a large pressure difference can point to a correspondingly large load of the particulate filter 18. It goes without saying that other indicators can be used here to make the decision about a necessary regeneration.
  • first liquid hydrocarbon or fuel is fed into the evaporator medium 34 again and at the same time the heater 26 is operated in order to ensure a sufficient Brennstoffabdampfung.
  • the ignition element 42 is then energized, so that locally high temperatures and ignition temperatures are generated locally in a region of high fuel vapor concentration.
  • the oxygen required for combustion transport the exhaust gases A in the form of not consumed during combustion in the engine residual oxygen, which will pass together with the exhaust gases A through the openings 32 and possibly also the opening 30 in the evaporation / combustion chamber 22 and mix there with the fuel vapor.
  • the excitation of the ignition element 42 can be adjusted.
  • the excitation of the heating device 26 can also be set, since sufficiently high temperatures are generated by the combustion taking place in the evaporation / combustion chamber 22 in order to maintain a sufficient evaporation of the initially liquid hydrocarbon from the evaporator medium 34.
  • the combustion exhaust gases V of the evaporator / burner arrangement 20 then enter the exhaust gas flow path 14 essentially through the opening 30 and mix there with the exhaust gases emitted by the internal combustion engine. This in turn means that the exhaust gases then flowing in the direction of the catalyst arrangement 16 will have a higher temperature than in the region of the exhaust gas flow path 14 which is further upstream.
  • the burner output can be adjusted by appropriate fuel metering be that even taking into account the temperature of the exhaust gases A in the range of the catalyst assembly 16 now a sufficiently high temperature is set to start or maintain the catalytic reaction.
  • the evaporator / burner arrangement 20 can be operated in this operating phase so that it generates more fuel or hydrocarbon vapor than for combustion with the residual oxygen flowing through it. which is transported in the exhaust gases A, required so that not only combustion exhaust gases V, but at the same time also unburned hydrocarbon vapor K will escape through the opening 30.
  • the reaction required in each case in the area of the catalyst arrangement 16 as well as in the area of the particle filter arrangement 18 can thus be carried out in a suitable manner or kept at a drain.
  • the temperature of the exhaust gases A increases again to a temperature which is sufficient to keep these reactions alive, it is no longer necessary for the evaporator / burner arrangement 20 to operate in burner mode.
  • it is also possible to end the combustion by appropriate control of the metering pump and corresponding fuel throttling. After completion of the combustion, the fuel supply can be resumed or continued be in order to then produce again required heater 26 for the catalytic reaction or advantageous hydrocarbon vapor and to be able to bury the exhaust gases A.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Incineration Of Waste (AREA)

Claims (8)

  1. Système de traitement des gaz d'échappement pour un moteur à combustion interne, notamment un moteur à combustion interne Diesel, comprenant un système de catalyseur (16) ainsi qu'au moins un système d'évaporation/de combustion (20) situé dans le courant de gaz d'échappement (14) en amont du système de catalyseur (16), ledit système d'évaporation/de combustion (20) comprenant :
    - un système de boîtier (21) en forme de pot avec une chambre d'évaporation/de combustion (22) intégrée, ouverte en direction du courant de gaz d'échappement (14) ; ledit système de boîtier (21) présentant face a une zone de fond (26), une ouverture (30) pour l'évacuation des vapeurs d'hydrocarbures produites dans la chambre d'évaporation/de combustion (22) vers le courant de gaz d'échappement (14) et/ou pour l'évacuation des produits de combustion générés dans la chambre d'évaporation/de combustion (22) vers le courant de gaz d'échappement (14) ; une paroi circonférentielle (24) du système de boîtier (21) s'étendant en outre dans le courant de gaz d'échappement ;
    - un dispositif d'allumage (42) pour lancer la combustion des vapeurs d'hydrocarbures se trouvant dans la chambre d'évaporation/de combustion,
    se caractérisant par
    - un milieu de vaporisation (34) pour absorber les hydrocarbures liquides et pour alimenter la chambre d'évaporation/de combustion (22) avec des vapeurs d'hydrocarbures,
    - un dispositif de chauffage (38) pour chauffer le milieu de vaporisation (34),
    ledit milieu de vaporisation (34) étant prévu au moins dans la zone de fond (26) du système de boîtier (21) essentiellement conçu en forme de pot et ledit dispositif de chauffage (38) étant prévu dans la zone de fond (26) du système de boîtier (20) et ladite paroi circonférentielle disposant, dans sa zone qui s'étend dans le courant de gaz d'échappement, d'un passage pour les gaz d'échappement (32) permettant à l'oxygène restant qui coule avec les gaz d'échappement dans le courant de gaz d'échappement d'entrer dans le système de boîtier (21) pour la mise à disposition dans le système de boîtier (21) de l'oxygène nécessaire à la combustion avec les vapeurs d'hydrocarbures.
  2. Système de traitement des gaz d'échappement selon la revendication 1, caractérisé en ce que le dispositif de chauffage (28) peut fonctionner électriquement.
  3. Système de traitement des gaz d'échappement selon l'une des revendications 1 ou 2,
    caractérisé en ce qu'une première sonde de température (46) est prévue pour l'enregistrement d'une température des gaz (A) s'échappant d'un moteur à combustion dans le courant de gaz d'échappement (14) en amont du système de catalyseur (16).
  4. Système de traitement des gaz d'échappement selon la revendication 3, caractérisé en ce que la première sonde de température (46) est prévue en amont d'au moins un système d'évaporation/de combustion (20).
  5. Système de traitement des gaz d'échappement selon les revendications 1 à 4, caractérisé en ce qu'un filtre à particules (18) est prévu dans le courant des gaz d'échappement (14) en amont du système de catalyseur (16).
  6. Système de traitement des gaz d'échappement selon la revendication 5, caractérisé en ce qu'une deuxième sonde de température (48) est prévue en amont du filtre à particules (18) pour l'enregistrement de la température des gaz d'échappement dans la zone d'écoulement des gaz entre le système de catalyseur (16) et le filtre à particules (18).
  7. Procédé d'opération d'un système de traitement des gaz d'échappement selon l'une des revendications précédentes en vertu duquel, dans les cas où l'on constate qu'une température d'échappement des gaz (A) s'échappant du moteur de combustion est inférieure au seuil prédéfini, notamment lorsqu'elle n'est pas suffisamment élevée pour permettre à une réaction catalytique adaptée de se mettre en place et/ou de se maintenir dans le système de catalyseur (16), au moins un système d'évaporation/de combustion (20) est exploité, au moins par phase, pour brûler au moins une partie des vapeurs d'hydrocarbures y étant générées ainsi que l'oxygène restant qui coule avec les gaz d'échappement dans le courant de gaz d'échappement.
  8. Procédé selon la revendication 7,
    caractérisé en ce que lorsque l'on constate que la température des gaz d'échappement quittant le moteur à combustion (A) est supérieure à un seuil prédéfini, notamment lorsqu'elle est suffisamment élevée pour permettre à une réaction catalytique adaptée de se mettre en place et/ou de se maintenir dans le système de catalyseur (16), au moins un système d'évaporation/combustion (20) est alors exploité, au moins par phase, pour produire les vapeurs d'hydrocarbures à mélanger aux gaz d'échappement (A) du moteur à combustion.
EP04023077A 2003-11-20 2004-09-28 Système de traitement des gaz d'échappement d'un moteur à combustion interne, et procédé de fonctionnement d'un système de traitement des gaz d'échappement correspondant Expired - Lifetime EP1533489B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10354232A DE10354232A1 (de) 2003-11-20 2003-11-20 Abgasbehandlungssystem für eine Brennkraftmaschine, insbesondere Diesel-Brennkraftmaschine, und Verfahren zum Betreiben eines Abgasbehandlungssystems für eine Brennkraftmaschine
DE10354232 2003-11-20

Publications (3)

Publication Number Publication Date
EP1533489A2 EP1533489A2 (fr) 2005-05-25
EP1533489A3 EP1533489A3 (fr) 2006-05-17
EP1533489B1 true EP1533489B1 (fr) 2008-05-28

Family

ID=34428825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04023077A Expired - Lifetime EP1533489B1 (fr) 2003-11-20 2004-09-28 Système de traitement des gaz d'échappement d'un moteur à combustion interne, et procédé de fonctionnement d'un système de traitement des gaz d'échappement correspondant

Country Status (4)

Country Link
US (1) US7150146B2 (fr)
EP (1) EP1533489B1 (fr)
JP (1) JP2005155617A (fr)
DE (2) DE10354232A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005044780A1 (de) * 2005-09-20 2007-03-29 Arvinmeritor Emissions Technologies Gmbh Einspritzdüse mit Heizelement sowie Verfahren zum Einbringen eines oxidierbaren Fluids in eine Abgasanlage stromaufwärts eines Katalysators oder Filters
DE102005062924A1 (de) 2005-12-29 2007-07-26 Arvinmeritor Emissions Technologies Gmbh Abgasanlage für ein Kraftfahrzeug sowie Verfahren zur Regeneration eines Partikelfilters in einer Kfz-Abgasanlage
DE102006031545A1 (de) * 2006-07-07 2008-01-17 Arvinmeritor Emissions Technologies Gmbh Baugruppe mit einer Verdampfungseinheit
FR2920836B1 (fr) * 2007-09-07 2014-04-25 Faurecia Sys Echappement Dispositif de vaporisation d'un carburant.
FR2921438A1 (fr) * 2007-09-25 2009-03-27 Renault Sas Dispositif de vaporisation de carburant
US20090178391A1 (en) * 2008-01-15 2009-07-16 Parrish Tony R Method and apparatus for operating an emission abatement assembly
JP5081848B2 (ja) * 2008-05-15 2012-11-28 株式会社クボタ ディーゼルエンジンの排気装置
US8375705B2 (en) * 2008-05-30 2013-02-19 Caterpillar Inc. Exhaust system implementing low-temperature regeneration strategy
DE102008062479A1 (de) * 2008-12-16 2010-06-17 Emcon Technologies Germany (Augsburg) Gmbh Abgasanlage einer Verbrennungskraftmaschine
DE102008063990A1 (de) * 2008-12-19 2010-06-24 J. Eberspächer GmbH & Co. KG Fahrzeugbrenner
US20120102951A1 (en) * 2010-10-29 2012-05-03 Gilbert Otto Kraemer Apparatus for reducing emissions and method of assembly
JP5510480B2 (ja) * 2012-03-06 2014-06-04 トヨタ自動車株式会社 内燃機関の排気浄化装置
KR101672900B1 (ko) * 2015-06-15 2016-11-04 한국기계연구원 암모니아 전환 장치 및 이를 이용한 요소수 에스씨알 시스템
CN113631801B (zh) 2019-03-27 2024-06-25 弗劳恩霍夫应用研究促进协会 废气排放控制装置和方法、配备有该装置的内燃机

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724220A (en) * 1970-11-04 1973-04-03 Nippon Denso Co Exhaust gas purifying device for internal combustion engines
US3837814A (en) * 1970-12-01 1974-09-24 Nippon Denso Co Exhaust gas cleaning device
DE2103008C3 (de) * 1971-01-22 1978-11-02 Siemens Ag, 1000 Berlin Und 8000 Muenchen Vorrichtung zur Erzeugung eines gasförmigen Brennstoffes
JPS5042897Y2 (fr) * 1971-06-15 1975-12-08
JPS5216165B2 (fr) * 1971-09-10 1977-05-07
JPS5762311A (en) * 1980-10-03 1982-04-15 Nippon Soken Inc Liquid fuel combustion apparatus
JPS58208510A (ja) 1982-05-28 1983-12-05 Toyotomi Kogyo Co Ltd 石油燃焼器の点火装置
JPS58185716U (ja) * 1982-06-01 1983-12-09 株式会社トヨトミ ポット式石油燃焼器
US4566271A (en) * 1982-12-01 1986-01-28 Lucas Industries Public Limited Company Engine systems
FR2548264B1 (fr) * 1983-06-16 1985-12-13 Renault Regeneration des filtres a particules, notamment pour moteurs diesel
US5379592A (en) * 1991-10-23 1995-01-10 Waschkuttis; Gerhard Catalytic converter with ignition burner
US5419121A (en) * 1993-04-16 1995-05-30 Engelhard Corporation Method and apparatus for reduction of pollutants emitted from automotive engines by flame incineration
DE19504208B4 (de) * 1994-02-11 2005-09-29 Volkswagen Ag Abgaskonverter mit einem Katalysator und einem diesem vorgeschalteten Brenner
DE4436415A1 (de) * 1994-10-12 1996-04-18 Bosch Gmbh Robert Einrichtung zum Nachbehandeln von Abgasen einer selbstzündenden Brennkraftmaschine
DE19504183A1 (de) * 1995-02-09 1996-08-14 Eberspaecher J Brenner zur thermischen Regeneration eines Partikelfilters in einem Abgasnachbehandlungssystem eines Verbrennungsmotors, insbesondere Dieselmotors
US5829248A (en) * 1997-06-19 1998-11-03 Environmental Engineering Corp. Anti-pollution system
JP4161546B2 (ja) * 2001-06-26 2008-10-08 いすゞ自動車株式会社 連続再生型ディーゼルパティキュレートフィルタ装置の再生制御方法
DE10217675A1 (de) * 2002-04-19 2003-11-13 Eberspaecher J Gmbh & Co Verdampferanordnung zur Erzeugung eines in einem Reformer zur Wasserstoffgewinnung zersetzbaren Kohlenwasserstoff/Luft-Gemisches und Verfahren zum Betreiben einer derartigen Verdampferanordnung

Also Published As

Publication number Publication date
DE502004007271D1 (de) 2008-07-10
DE10354232A1 (de) 2005-06-30
US7150146B2 (en) 2006-12-19
EP1533489A3 (fr) 2006-05-17
US20050109019A1 (en) 2005-05-26
EP1533489A2 (fr) 2005-05-25
JP2005155617A (ja) 2005-06-16

Similar Documents

Publication Publication Date Title
EP1533489B1 (fr) Système de traitement des gaz d'échappement d'un moteur à combustion interne, et procédé de fonctionnement d'un système de traitement des gaz d'échappement correspondant
DE602004003354T2 (de) Einen teilchenfilter und nox-absorber enthaltendes abgassystem für brennkraftmaschine mit magergemischverbrennung
DE102010022940B4 (de) Abgaspartikelfiltersystem, Abgasbehandlungssystem sowie Verfahen zum Regenerieren eines Abgasfilters
DE60115479T2 (de) Filter und verfahren zur kontrolle der abgasemissionen
DE102012205678B4 (de) Abgasbehandlungssystem für einen Verbrennungsmotor
EP0881366B1 (fr) Chauffage supplémentaire pour véhicules avec moteurs à combustion interne
DE112012003226T5 (de) Abgasbehandlungssystem mit Kohlenwasserstoff-Lean-NOx-Katalysator
EP1523611B1 (fr) Dispositif et procede de purification des gaz d'echappement d'un moteur a combustion interne
EP1567753B1 (fr) Vehicule automobile a moteur d'entrainement diesel
DE10217675A1 (de) Verdampferanordnung zur Erzeugung eines in einem Reformer zur Wasserstoffgewinnung zersetzbaren Kohlenwasserstoff/Luft-Gemisches und Verfahren zum Betreiben einer derartigen Verdampferanordnung
DE102011112877A1 (de) Abgasnachbehandlungssystem und Betriebsverfahren
DE112011104731T5 (de) Miniaturregenerationseinheit
DE10342003A1 (de) Vorrichtung zur Aufbereitung einer Reduktionsmittel-Vorprodukt-Lösung zur Abgasnachbehandlung
WO2004099578A1 (fr) Regeneration d'un piege a particules
EP2435672A1 (fr) Système de post-traitement de gaz d'échappement
DE102009032022A1 (de) Verfahren und Vorrichtung zur Regeneration eines im Abgastrakt einer Brennkraftmaschine angeordneten Partikelfilters
DE3046258A1 (de) Vorrichtung und verfahren zum aufbereiten eines brennbare feststoffteilchen mitfuehrenden heissen abgasstroms
DE102010045203A1 (de) Oxidierender Partikelfilter
DE10225273B4 (de) Kraftfahrzeug mit einem Diesel-Antriebsmotor
EP2166203A1 (fr) Dispositif de nettoyage d'un flux de gaz d'échappement d'un moteur à combustion interne d'un véhicule automobile, notamment un véhicule utilitaire
DE102004049289B4 (de) Abgasnachbehandlungssystem und Abgasnachbehandlungsverfahren für einen Verbrennungsmotor
DE102016120846A1 (de) Verfahren zum Aufheizen eines Abgasnachbehandlungselements sowie Kraftfahrzeug mit einem solchen Abgasnachbehandlungselement
EP0638776B1 (fr) Dispositif de réduction de l'émission d'odeur et de polluants pour des appareils de chauffage pour véhicules
DE202005008146U1 (de) Abgasanlage für ein Kraftfahrzeug
WO2002048512A1 (fr) Dispositif d'epuration des gaz d'echappement et procede associe

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20061117

AKX Designation fees paid

Designated state(s): CZ DE FR GB

17Q First examination report despatched

Effective date: 20070117

R17C First examination report despatched (corrected)

Effective date: 20070723

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: EXHAUST TREATMENT SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, AND METHOD FOR OPERATING A CORRESPONDING EXHAUST TREATMENT SYSTEM

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CZ DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 502004007271

Country of ref document: DE

Date of ref document: 20080710

Kind code of ref document: P

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

Ref country code: CZ

Payment date: 20080922

Year of fee payment: 5

Ref country code: FR

Payment date: 20080917

Year of fee payment: 5

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

Ref country code: GB

Payment date: 20080922

Year of fee payment: 5

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

26N No opposition filed

Effective date: 20090303

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

Effective date: 20090928

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100531

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

Ref country code: FR

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

Effective date: 20090930

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

Ref country code: CZ

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

Effective date: 20090928

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

Ref country code: GB

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

Effective date: 20090928

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004007271

Country of ref document: DE

Representative=s name: WEICKMANN & WEICKMANN, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004007271

Country of ref document: DE

Representative=s name: WEICKMANN & WEICKMANN, DE

Effective date: 20130607

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004007271

Country of ref document: DE

Owner name: EBERSPAECHER CLIMATE CONTROL SYSTEMS GMBH & CO, DE

Free format text: FORMER OWNER: J. EBERSPAECHER GMBH & CO. KG, 73730 ESSLINGEN, DE

Effective date: 20130607

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004007271

Country of ref document: DE

Representative=s name: RUTTENSPERGER LACHNIT TROSSIN GOMOLL PATENT- U, DE

Effective date: 20130607

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004007271

Country of ref document: DE

Representative=s name: RUTTENSPERGER LACHNIT TROSSIN GOMOLL PATENT- U, DE

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

Ref country code: DE

Payment date: 20150930

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004007271

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20170401