WO2007134735A1 - Elément de tourbillonnement pour un système d'échappement des gaz - Google Patents

Elément de tourbillonnement pour un système d'échappement des gaz Download PDF

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Publication number
WO2007134735A1
WO2007134735A1 PCT/EP2007/004209 EP2007004209W WO2007134735A1 WO 2007134735 A1 WO2007134735 A1 WO 2007134735A1 EP 2007004209 W EP2007004209 W EP 2007004209W WO 2007134735 A1 WO2007134735 A1 WO 2007134735A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
verwirbelungselement
support structure
element according
exhaust gas
Prior art date
Application number
PCT/EP2007/004209
Other languages
German (de)
English (en)
Inventor
Klaus Rusch
Peter Kroner
Original Assignee
Emcon Technologies Germany (Augsburg) Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Emcon Technologies Germany (Augsburg) Gmbh filed Critical Emcon Technologies Germany (Augsburg) Gmbh
Publication of WO2007134735A1 publication Critical patent/WO2007134735A1/fr

Links

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
    • F01N3/2066—Selective catalytic reduction [SCR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
    • B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
    • B01F25/431974—Support members, e.g. tubular collars, with projecting baffles fitted inside the mixing tube or adjacent to the inner wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • F01N3/2821—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates the support being provided with means to enhance the mixing process inside the converter, e.g. sheets, plates or foils with protrusions or projections to create turbulence
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • 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
    • F01N2240/40—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a hydrolysis catalyst
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • F01N2330/38—Honeycomb supports characterised by their structural details flow channels with means to enhance flow mixing,(e.g. protrusions or projections)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • F01N2610/102—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance after addition to exhaust gases, e.g. by a passively or actively heated surface in the exhaust conduit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a swirling element for an exhaust system.
  • additives are introduced into the exhaust gas line upstream of a filter or a catalyst, for example urea.
  • the additive reacts on the catalyst with the exhaust gas and / or the coating of the catalyst to eliminate or at least reduce undesirable constituents of the exhaust gas.
  • Important for the good function of such systems is that the additive distributed as homogeneously as possible, mixed well with the exhaust and evaporated quickly. Otherwise, the catalyst volume is not evenly utilized and drops of the additive entrained in the exhaust stream could damage the filter or catalyst.
  • Vortex elements in the form of metal sheets associated with the injection device with which the additive is introduced into the exhaust gas stream are known from the prior art.
  • the swirling elements should ensure a homogeneous distribution and rapid evaporation of the additive after injection into the exhaust gas flow.
  • the known turbulence elements can not reliably prevent dripping and can not always ensure rapid evaporation of the additive.
  • the object of the invention is to provide a Verwirbelungselement which reliably ensures the evaporation of the drops and prevents dripping.
  • a swirling element for an exhaust system is provided, with a substrate having a plurality of flow channels and being arranged to be arranged downstream of a device for introducing an additive.
  • the swirling element according to the invention with the flow-permeable substrate offers two decisive advantages over those of the prior art Technique known vortex elements.
  • the turbulizer element in addition to a macroscopic turbulence, the turbulizer element also creates a microscopic turbulence.
  • the macroscopic turbulence is created by the turbulence element as such, which is arranged in the exhaust gas flow.
  • the microscopic turbulence is caused in the swirling element itself. Part of the exhaust gas flows through the flow channels of the swirling element.
  • the swirling element has a very low thermal conductivity and a low heat capacity because it does not consist of a solid body. It follows that its surface heats up very quickly in the exhaust gas stream. The high temperatures of the swirling element assist the evaporation of the injected additive. Thus, the risk of droplets reaching the catalyst unvaporized is greatly reduced over the swirling elements known in the art, and the decomposition of the additive is accelerated.
  • the substrate is a hollow chamber structure.
  • hollow chamber structure is understood to mean a component which consists of a multiplicity of hollow bodies, for example hollow spheres made of metal, which are sintered together Production and the construction of such hollow-chamber structures are sufficiently known from the prior art, so that they will not be discussed further in. An example of a hollow-chamber structure is described in DE 19949 271 A1.
  • the substrate is an open-pored foam, for example a metal foam.
  • the swirling element may have various geometric shapes, such as cylindrical, conical, or combinations of such shapes.
  • the substrate is assigned a support structure, for example made of sheet metal, a wire mesh, expanded metal, etc. The substrate may be attached to the support structure, or the support structure may be sintered into the substrate.
  • the substrate is provided with a hydrolytically active coating.
  • the swirling element acts as a hydrolysis catalyst which produces ammonia from urea without the possibility of deposits of isocycanoic acid.
  • FIG. 1 shows schematically a part of an exhaust system with various embodiments of Verwirbelungs instituten
  • FIG. 2 shows a section along the plane H-II of FIG. 1;
  • FIG. 3 shows a further embodiment of a Verwirbelungs embodiment
  • Exhaust pipe 10 flows through the exhaust gas in the direction of the arrow A, and then an exhaust gas purification member 12 which is disposed in a housing 14.
  • a device 16 for introducing an additive by means of which an additive is introduced into the exhaust gas stream can.
  • the additive may be, for example, aqueous urea solution.
  • the device 16 may be, for example, an injection device or an evaporation device.
  • a swirling element 20 Downstream of the injection device 16, a swirling element 20 is arranged, which is formed here as a hollow cylinder 21 (see in particular
  • Verwirbelungselement 20 on both sides flows around the exhaust gas, resulting in a particularly rapid heating of the swirling element and therefore a particularly fast
  • the Verwirbelungselement 20 consists essentially of an inherently stable substrate 30.
  • This can be formed in particular by a self-stable hollow chamber structure, ie consist of a plurality of fixedly interconnected hollow bodies, for example sintered together metal balls.
  • This intrinsically stable structure has the shape of a hollow cylinder in the described embodiment.
  • the substrate may also be formed by an inherently stable, open-pored foam, for example a metal foam.
  • a swirling element 20 is shown, which is composed of a truncated cone 23 narrowing in the flow direction, on the small, downstream base of a cone 24 is set, which tapers against the flow direction.
  • this swirler is a closed structure in that the exhaust flow must traverse the substrate to travel downstream from the location upstream of the swirler.
  • FIG. 1 a further swirling element 20 is shown in FIG. 1, which is designed as a cone 24 with a very large point angle. It is immediately upstream of the exhaust gas purification component 12 and is also formed as a closed structure.
  • FIG. 3 shows a swirling element 20, which is composed of a hollow cylinder 21 and the double-cone structure consisting of a truncated cone 23 and a cone 24.
  • FIG. 4 shows a further embodiment variant of the swirling element 20.
  • the swirling element 20 is composed of a plurality of concentrically arranged truncated cones 23, wherein the point angle decreases from outside to inside.
  • FIG. 5 shows a variant embodiment of the swirling element, in which the swirling element 20 has six swirl vanes 26.
  • the wings as a whole impart a swirl to the exhaust gas flow, which contributes to the turbulence of the additive. In addition, turbulence effects arise due to the gas permeability of the individual wings.
  • FIG. 6 a shows a cross section through the wall of a variant of a swirling element with the substrate 30 and a carrier structure, which is designated by the reference numeral 32 here.
  • the support structure is formed here by a wire mesh or a wire mesh.
  • FIG. 6b shows the structure of a swirling element, in which the substrate 30 is provided with a carrier structure 32 made of a perforated or slotted sheet metal or expanded metal.
  • FIG. 6 c shows a wall construction in which the support structure 32 is arranged on both sides of the substrate 30. This results in comparison to the embodiments of Figures 6a and 6b, in which the support structures are arranged only on one side of the substrate, a higher strength.
  • FIG. 6 d shows a wall structure in which the support structure 32 is arranged in the interior of the substrate 30.
  • the support structure 32 may in particular be sintered into the interior of the substrate.
  • the substrate is provided with a hydrolytically active coating. This allows the swirling element to act as a catalyst which accelerates the decomposition of the injected urea.

Landscapes

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

Abstract

La présente invention concerne un élément de tourbillonnement (20) pour un système d'échappement des gaz avec un substrat (30) qui présente une pluralité de canaux d'écoulement et qui est prévu pour être disposé en aval d'un dispositif pour introduire un additif. La présente invention concerne également un système d'échappement des gaz avec un filtre et/ou un catalyseur, un dispositif d'injection, par exemple pour de l'urée et un tel élément de tourbillonnement.
PCT/EP2007/004209 2006-05-23 2007-05-11 Elément de tourbillonnement pour un système d'échappement des gaz WO2007134735A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006024.199.1 2006-05-23
DE102006024199A DE102006024199A1 (de) 2006-05-23 2006-05-23 Verwirbelungselement für Abgasanlage

Publications (1)

Publication Number Publication Date
WO2007134735A1 true WO2007134735A1 (fr) 2007-11-29

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ID=38228559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/004209 WO2007134735A1 (fr) 2006-05-23 2007-05-11 Elément de tourbillonnement pour un système d'échappement des gaz

Country Status (2)

Country Link
DE (1) DE102006024199A1 (fr)
WO (1) WO2007134735A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2942847B1 (fr) * 2009-03-04 2014-04-25 Renault Sas Dispositif et procede de traitement des oxydes d'azote contenus dans des gaz d'echappement
FR2957119B1 (fr) * 2010-03-02 2013-05-10 Peugeot Citroen Automobiles Sa Chambre de melange d'un produit reducteur a des gaz d'echappement
EP2433701A1 (fr) * 2010-09-27 2012-03-28 Alstom Technology Ltd Agencement de contrôle de flux gazeux
DE102010056314A1 (de) * 2010-12-27 2012-06-28 Friedrich Boysen Gmbh & Co. Kg Vorrichtung zum Verteilen von Fluiden in Abgasanlagen
JPWO2012164722A1 (ja) * 2011-06-02 2014-07-31 トヨタ自動車株式会社 内燃機関の排気浄化装置
DE102011111765B4 (de) 2011-08-24 2023-06-22 Friedrich Boysen Gmbh & Co. Kg Mischereinrichtung
EP3371427A1 (fr) * 2015-11-02 2018-09-12 Continental Automotive GmbH Système mélangeur servant à mélanger un additif à un flux de gaz d'échappement
BR112022010306A2 (pt) * 2019-12-02 2022-08-16 Cummins Emission Solutions Inc Câmara de decomposição
DE102020118232A1 (de) * 2020-07-10 2022-01-13 Man Truck & Bus Se Abgasnachbehandlungsvorrichtung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1476515B1 (de) * 1965-05-26 1970-02-12 Aerolyt Vertriebsgesellschaft Vorrichtung zum Entgiften von Abgasen,insbesondere aus Verbrennungsmotoren
DE4243500A1 (de) * 1992-12-22 1994-06-23 Max Rhodius Gmbh Katalysator-Einsatz
WO1997032119A1 (fr) * 1996-02-27 1997-09-04 Astro Met, Inc. Ame catalytique de grande superficie pour pot catalytique de gaz d'echappement
EP0818613A1 (fr) * 1996-07-08 1998-01-14 Corning Incorporated Système de purification de gaz d'échappement
DE19741199A1 (de) * 1997-09-18 1999-04-08 Siemens Ag Statischer Mischer
DE19834541A1 (de) * 1998-07-31 2000-02-03 Alfred Buck Abgasanlage
DE19949271A1 (de) 1999-10-12 2001-04-19 Zeuna Staerker Kg Schalldämpfer für die Abgasanlage eines durch einen Verbrennungsmotor angetriebenen Kraftfahrzeugs
US20020108368A1 (en) * 1999-08-17 2002-08-15 Jan Hodgson Device for reducing a level of nitrogen oxides in an exhaust gas of an internal combustion engine
EP1760284A2 (fr) * 2005-09-02 2007-03-07 Emitec Gesellschaft für Emissionstechnologie mbH Procédé et dispositif pour fournir des réactifs à un gaz d'échappement d'un moteur à combustion interne

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1476515B1 (de) * 1965-05-26 1970-02-12 Aerolyt Vertriebsgesellschaft Vorrichtung zum Entgiften von Abgasen,insbesondere aus Verbrennungsmotoren
DE4243500A1 (de) * 1992-12-22 1994-06-23 Max Rhodius Gmbh Katalysator-Einsatz
WO1997032119A1 (fr) * 1996-02-27 1997-09-04 Astro Met, Inc. Ame catalytique de grande superficie pour pot catalytique de gaz d'echappement
EP0818613A1 (fr) * 1996-07-08 1998-01-14 Corning Incorporated Système de purification de gaz d'échappement
DE19741199A1 (de) * 1997-09-18 1999-04-08 Siemens Ag Statischer Mischer
DE19834541A1 (de) * 1998-07-31 2000-02-03 Alfred Buck Abgasanlage
US20020108368A1 (en) * 1999-08-17 2002-08-15 Jan Hodgson Device for reducing a level of nitrogen oxides in an exhaust gas of an internal combustion engine
DE19949271A1 (de) 1999-10-12 2001-04-19 Zeuna Staerker Kg Schalldämpfer für die Abgasanlage eines durch einen Verbrennungsmotor angetriebenen Kraftfahrzeugs
EP1760284A2 (fr) * 2005-09-02 2007-03-07 Emitec Gesellschaft für Emissionstechnologie mbH Procédé et dispositif pour fournir des réactifs à un gaz d'échappement d'un moteur à combustion interne

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DE102006024199A1 (de) 2007-11-29

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