DE4243003A1 - Device for cleaning soot-containing exhaust gases, in particular the exhaust gases from diesel internal combustion engines - Google Patents

Device for cleaning soot-containing exhaust gases, in particular the exhaust gases from diesel internal combustion engines

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Publication number
DE4243003A1
DE4243003A1 DE4243003A DE4243003A DE4243003A1 DE 4243003 A1 DE4243003 A1 DE 4243003A1 DE 4243003 A DE4243003 A DE 4243003A DE 4243003 A DE4243003 A DE 4243003A DE 4243003 A1 DE4243003 A1 DE 4243003A1
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Germany
Prior art keywords
exhaust gases
soot
jacket
internal combustion
housing
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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.)
Ceased
Application number
DE4243003A
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German (de)
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.)
S & B Beteiligungs und Verwalt
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S & B Beteiligungs und Verwalt
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Application filed by S & B Beteiligungs und Verwalt filed Critical S & B Beteiligungs und Verwalt
Priority to DE4243003A priority Critical patent/DE4243003A1/en
Priority to PCT/EP1993/003580 priority patent/WO1994015078A1/en
Publication of DE4243003A1 publication Critical patent/DE4243003A1/en
Ceased legal-status Critical Current

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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
    • F01N3/02—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
    • F01N3/0217—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 the filtering elements having the form of hollow cylindrical bodies
    • 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
    • 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
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/08—Granular material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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

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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)
  • Processes For Solid Components From Exhaust (AREA)

Description

Die Erfindung geht aus von einer Einrichtung zur Reinigung von rußhaltigen Abgasen gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a device for cleaning soot-containing exhaust gases according to the preamble of claim 1.

Diesel-Verbrennungskraftmaschinen geben bekanntlich neben den übli­ cherweise auftretenden Schadstoffen insbesondere Ruß ab, der infolge sei­ ner großen Adsorptionsfähigkeit für krebserregende und umweltgefährdende Schadstoffe als in hohem Maße gesundheitsschädlich eingestuft wird und dessen Beseitigung bisher nicht in befriedigendem Maße gelingt. Die we­ sentliche Ursache hierfür liegt in der hohen Zündtemperatur des Rußes von - je nach betriebsbedingter Zusammensetzung der Partikel - zwischen 500°C und 700°C, die in den Abgasanlagen von Dieselmaschinen erst nach einer längeren Betriebszeit und gelegentlich ohne anderweitige Hilfsmittel, etwa Erhöhung des Treibstoff-Luft-Verhältnisses zum Zwecke der Erhöhung der Abgastemperatur auf die Zündtemperatur des Dieselrußes, Zusatzbrenner oder dergl. überhaupt nicht erreicht wird. Insbesondere bei im Linienverkehr mit Dieselkraftstoff betriebenen Fahrzeugen mit ihrer intermittierenden Betriebsweise wird die für die Nachverbrennung erforderliche Betriebs­ temperatur häufig nicht oder zumindest nicht dauerhaft erreicht, so daß sich in dem Einbauteil bereits nach kurzer Zeit große Mengen Dieselruß ansammeln. As is well known, diesel internal combustion engines give alongside the übli pollutants that occur, especially soot, which is the result a large adsorption capacity for carcinogenic and environmentally hazardous Pollutants are classified as highly harmful to health and its removal has so far not been satisfactory. The we The main reason for this is the high ignition temperature of the soot - depending on the operational composition of the particles - between 500 ° C and 700 ° C, which only occurs in the exhaust systems of diesel engines after one longer operating times and occasionally without other aids, for example Increase the air-fuel ratio for the purpose of increasing the Exhaust gas temperature to the ignition temperature of the diesel soot, additional burner or the like. is not achieved at all. Especially with regular services vehicles powered by diesel fuel with their intermittent Operating mode becomes the operation required for afterburning temperature often not reached or at least not permanently, so that large amounts of diesel soot are already in the built-in part after a short time accumulate.  

Zur Verbesserung der Abbrennbedingungen ist es hierbei bekannt, dem Filter einen die Zündtemperatur senkenden Katalysator vorzuschalten bezw. die Stirnfläche des Filters mit Katalysatormaterial zu beschichten. Hier­ durch kann zwar die angestrebte Senkung der Zündtemperatur, nicht jedoch eine zufriedenstellende, d. h. vollständige Verbrennung des Rußes, und zwar weder des anströmenden noch des in dem nachgeschalteten Filter während der Beladungsphase gesammelten Rußes erreicht werden, es hat sich vielmehr gezeigt, daß auf diese Weise teilweise eine Verflüchtigung und gege­ benenfalls sogar Abspaltung von flüchtigen Kohlenwasserstoffen eintritt.To improve the burning conditions, it is known that Filter upstream of a catalyst that lowers the ignition temperature. coat the face of the filter with catalyst material. Here the desired reduction in the ignition temperature can, however, not a satisfactory, d. H. complete combustion of the soot, namely neither the inflowing nor in the downstream filter during the Loading phase of collected soot can be achieved, it has rather shown that in this way partially volatilization and counter possibly even elimination of volatile hydrocarbons.

Zur Beseitigung dieser Nachteile ist es aus der DE-PS 34 07 172 be­ kannt, mehrere Filterelemente dieser Art abwechselnd hintereinander anzu­ ordnen, deren Stirnflächen jeweils abwechselnd mit einem die Zündtempe­ ratur für Dieselruß senkenden und einem die Oxidation von Kohlenwasser­ stoffen fördernden Katalysator beschichtet sind. Hierbei dient als zünd­ temperatursenkendes Katalysatormaterial Vanadiumpentoxid in Mischung mit einem beliebigen Metalloxid oder mehreren solchen Metalloxiden und als Oxidationskatalysator für Kohlenwasserstoffe ein Element der Platingruppe oder mehrere Elemente dieser Gruppe, gegebenenfalls zusammen mit einem anderen - unedlen - Metall. Die bekannte . führt ebenfalls nicht zu einem befriedigenden Ergebnis. Einerseits verursacht sie aufgrund der mehrfachen Hintereinanderschaltung von Filterkörpern mit unterschiedlicher katalytischer Beschichtung einen erheblichen Aufwand und erfordert da­ rüberhinaus einen erheblichen, häufig nicht zur Verfügung stehenden Raum­ bedarf. Darüber hinaus kann mit dieser . das wesentliche Problem, nämlich die vollständige Beseitigung des gebildeten Rußes in allen Be­ triebszuständen, d. h. nicht nur während des allgemeinen Fahrbetriebes son­ dern auch bereits in der Anfahrphase nicht gelöst werden. Es können auch in diesem Falle insbesondere in der Anfahrphase und in den Rußsammel­ phasen die kleineren Rußpartikel nicht erfaßt werden und es ist ebenfalls periodisch eine Temperaturerhöhung unter Zuhilfenahme anderweitiger Hilfs­ mittel erforderlich.To eliminate these disadvantages, it is from DE-PS 34 07 172 be knows to alternately turn on several filter elements of this type arrange, the end faces of which alternate with the ignition temperature Ratur for diesel soot and the oxidation of hydrocarbons promoting catalyst are coated. This serves as the ignition temperature-reducing catalyst material mixed with vanadium pentoxide any metal oxide or several such metal oxides and as Oxidation catalyst for hydrocarbons an element of the platinum group or several elements of this group, optionally together with one other - base - metal. The well-known . does not lead to one either satisfactory result. On the one hand it caused due to the multiple Series of filter bodies with different catalytic coating a considerable effort and requires furthermore a considerable, often unavailable space requirement. In addition, with this. the main problem, namely the complete removal of the soot formed in all cases  driving states, d. H. not only during general driving operations cannot be solved even in the start-up phase. It can too in this case especially in the start-up phase and in the soot collection phase the smaller soot particles are not detected and it is also periodically a temperature increase with the help of other aids medium required.

Der vorliegenden Erfindung liegt als Aufgabe die Schaffung eines konstruktiv einfachen Rußfilters zugrunde, mit dessen Hilfe eine voll­ ständige Nachverbrennung des in einer Dieselbrennkraftmaschine gebildeten Rußes erzielt werden kann. Diese Aufgabe wird mit einer Einrichtung mit den im Patentanspruch 1 wiedergegebenen Merkmalen gelöst.The present invention has for its object to provide a constructively simple soot filter based, with the help of a full constant afterburning of that formed in a diesel engine Soot can be achieved. This task is done with a facility the features set out in claim 1 solved.

Mit Hilfe des erfindungsgemäßen Filters wird eine konstruktiv einfa­ che und zuverlässige Nachverbrennung der Dieselruß-Partikel dadurch er­ reicht, daß die Abgase durch Beheizung auf Zündtemperatur für Dieselruß gehalten werden. Es konnte durch diesbezügliche Untersuchungen darüberhi­ naus nachgewiesen werden, daß von dem sich infolge des Stromflusses in der Heizeinrichtung in diesem Ringraum aufbauenden magnetischen Feld eine positive Wirkung auf die Verbrennung der Dieselrußpartikel ausgeht, die durch Herstellung der die Ringräume begrenzenden Gitter aus einem magne­ tisierbaren Material noch erheblich verstärkt werden kann. Die Ausbildung der Gitter aus Metall hat darüberhinaus - gegenüber anderen Werkstoffen, insbesondere keramischen Werkstoffen - den weiteren wesentlichen Vorteil einer hohen Standfestigkeit gegenüber den durch die häufigen Temperatur­ wechsel verursachten Belastungen. With the help of the filter according to the invention, a constructively simple and reliable afterburning of the diesel soot particles suffices that the exhaust gases by heating to ignition temperature for diesel soot being held. It was able to do so through investigations into this naus be demonstrated that of which due to the current flow in the Heating device in this annulus building magnetic field positive effect on the combustion of the diesel soot particles that by producing the lattice bounding the annular spaces from a magne tisizable material can be significantly strengthened. Training the metal grid also has - compared to other materials, in particular ceramic materials - the other significant advantage a high stability against the frequent temperature change caused stress.  

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachstehend näher erläutert. Es zeigenAn embodiment of the invention is shown in the drawing and is explained in more detail below. Show it

Fig. 1 die schematische Schnittdarstellung eines Katalysator­ elementes Fig. 1 is a schematic sectional view of a catalyst element

Fig. 2 eine Sicht von unten auf das Katalysatorelement. Fig. 2 is a bottom view of the catalyst element.

Die in der Zeichnung wiedergegebene Einrichtung zur Reinigung von ruß­ haltigen Abgasen, insbesondere der Abgase aus Diesel-Verbrennungskraftma­ schinen besteht aus einem an seiner einen Stirnseite mittels eines Bleches 6 geschlossenen Gehäuse 1 mit mittig-axialem, von einem siebartig durch­ brochenen Mantel 2 gebildeten Abgas-Zuführungskanal 3, der von einem der Aufnahme von Katalysatormaterial dienenden, ebenfalls von einem durchbro­ chenen Mantel 4 begrenzten Ringraum umschlossen ist. In dem Gehäuse sind mittels stabiler Metallgitter 2, 4, 5 als Mantel zwei den Abgaszufüh­ rungskanal 3 umgehende Ringräume 10, 11 ausgebildet, von denen der äußere Ringraum 10 der Aufnahme des Katalysatormaterials dient und in deren innerem Ringraum 11 konzentrisch ein Heizgewebe 12 angeordnet ist.The device shown in the drawing for the cleaning of soot-containing exhaust gases, in particular the exhaust gases from diesel internal combustion engines, consists of a housing 1 closed on one end side by means of a sheet 6 with a central-axial exhaust gas formed by a screen-like broken through jacket 2 feeding channel 3, which is enclosed by a likewise durchbro rupted jacket 4 limited annular space serving of a recording of catalyst material. In the housing are formed by means of stable metal grids 2 , 4 , 5 as a jacket two exhaust gas supply duct 3 surrounding annular spaces 10 , 11 , of which the outer annular space 10 serves to hold the catalyst material and in the inner annular space 11 a heating fabric 12 is arranged concentrically.

Es können auch mehrere konzentrische Ringräume vorgesehen sein, in welchem Falle zweckmäßig der äußere und der innere Ringraum der Aufnahme von Katalysatormaterial dienen und das Heizgewebe in einem der mittleren Ring­ räume angeordnet ist.A plurality of concentric annular spaces can also be provided, in which If appropriate, the outer and inner annulus of receiving Serve catalyst material and the heating fabric in one of the middle rings rooms is arranged.

Die stabilen Metallgitter 2, 4, 5 bestehen zweckmäßig aus einem elek­ trisch magnetisierbaren Material, wodurch infolge des sich durch Induktion zwischen den Gittern aufbauenden magnetischen Feldes eine wesentliche Verbesserung der katalytischen Verbrennung der Rußpartikel erreicht wird. The stable metal grids 2 , 4 , 5 suitably consist of an elec trically magnetizable material, whereby a substantial improvement in the catalytic combustion of the soot particles is achieved as a result of the magnetic field building up by induction between the grids.

Das Heizgewebe 12 ist auf einem Register von sich auf einem der stabi­ len Metallgitter 7 abstützenden Trägern aus isolierendem, vorzugsweise keramischem Material als Abstandshalter gehalten, die die Form von sich über die gesamte Länge erstreckenden Stäben 13 oder die Form von Distanz­ ringen 14 aufweisen können. Mit 15 ist der Stromanschluß für das Heizgewebe bezeichnet.The heating fabric 12 is held on a register of one of the stabi len metal grid 7 supporting supports made of insulating, preferably ceramic material as a spacer, which may have the shape of rods 13 extending over the entire length or the shape of rings 14 . With 15 the power connection for the heating fabric is designated.

Claims (6)

1. Einrichtung zur Reinigung von rußhaltigen Abgasen, insbesondere der Abgase aus Diesel-Verbrennungskraftmaschinen, bestehend aus einem an seiner einen Stirnseite geschlossenen Gehäuse (1) mit mittig-axialem, von einem siebartig durchbrochenen Mantel (2) gebildeten Abgas-Zuführungskanal (3), der von einem der Aufnahme von Katalysatormaterial dienenden, eben­ falls von einem durchbrochenen Mantel (4) begrenzten Ringraum umschlossen ist, dadurch gekennzeichnet, daß in dem Gehäuse mittels stabiler Metall­ gitter (2, 4, 5) als Mantel mindestens zwei den Abgaszuführungskanal (3) umgehende Ringräume (10, 11) ausgebildet sind, von denen der äußere Ring­ raum (10) der Aufnahme des Katalysatormaterials dient und in deren innerem Ringraum (11) konzentrisch ein Heizgewebe (12) angeordnet ist.1. A device for cleaning soot-containing exhaust gases, in particular the exhaust gases from diesel internal combustion engines, consisting of a housing ( 1 ) which is closed on one end face and has a central-axial exhaust gas supply channel ( 3 ) formed by a sieve-like jacket ( 2 ), the annular space which is used to hold catalyst material and is also delimited by a perforated jacket ( 4 ), characterized in that in the housing by means of stable metal grids ( 2 , 4 , 5 ) as jacket at least two the exhaust gas supply channel ( 3 ) immediate annular spaces ( 10 , 11 ) are formed, of which the outer annular space ( 10 ) serves to hold the catalyst material and in the inner annular space ( 11 ) a heating fabric ( 12 ) is arranged concentrically. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in dem Gehäuse mehrere konzentrische Ringräume ausgebildet sind, von denen mindestens der äußere und der innere Ringraum der Aufnahme von Kata­ lysatormaterial dienen und das Heizgewebe in einem der mittleren Ringräume angeordnet ist.2. Device according to claim 1, characterized in that in the Housing several concentric annular spaces are formed, one of which at least the outer and inner annulus of the inclusion of kata lysatormaterial serve and the heating fabric in one of the middle annular spaces is arranged. 3. Einrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die stabilen Metallgitter (2, 4, 5) aus elektrisch magnetisierbarem Material bestehen. 3. Device according to claim 1 or 2, characterized in that the stable metal grid ( 2 , 4 , 5 ) consist of electrically magnetizable material. 4. Einrichtung nach einem der Ansprüche 1 bis 3, dadurch gekenn­ zeichnet, daß das Heizgewebe (12) auf einem Register von sich auf einem der stabilen Metallgitter (7) abstützenden Trägern (13, 14) aus iso­ lierendem Material gehalten ist.4. Device according to one of claims 1 to 3, characterized in that the heating fabric ( 12 ) is held on a register of itself on one of the stable metal grid ( 7 ) supporting supports ( 13 , 14 ) made of insulating material. 5. Einrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Träger (13, 14) von Distanzstäben aus keramischem Material gebildet sind.5. Device according to claim 4, characterized in that the carriers ( 13 , 14 ) are formed by spacer bars made of ceramic material. 6. Einrichtung nach einem der Ansprüche 1 bis 5, dadurch gekenn­ zeichnet, daß das Katalysatormaterial von einer körnigen, beispielsweise pelletisierten Masse gebildet ist.6. Device according to one of claims 1 to 5, characterized records that the catalyst material from a granular, for example pelletized mass is formed.
DE4243003A 1992-12-18 1992-12-18 Device for cleaning soot-containing exhaust gases, in particular the exhaust gases from diesel internal combustion engines Ceased DE4243003A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4243003A DE4243003A1 (en) 1992-12-18 1992-12-18 Device for cleaning soot-containing exhaust gases, in particular the exhaust gases from diesel internal combustion engines
PCT/EP1993/003580 WO1994015078A1 (en) 1992-12-18 1993-12-16 Arrangement for cleaning sooty exhaust fumes, in particular exhaust fumes from diesel engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4243003A DE4243003A1 (en) 1992-12-18 1992-12-18 Device for cleaning soot-containing exhaust gases, in particular the exhaust gases from diesel internal combustion engines

Publications (1)

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DE4243003A1 true DE4243003A1 (en) 1994-06-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6786041B2 (en) * 2000-02-16 2004-09-07 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification method and exhaust gas purification apparatus
FR2877692A1 (en) * 2004-11-09 2006-05-12 Peugeot Citroen Automobiles Sa Particle filter for exhaust line of diesel engine of motor vehicle, has gas outlet end associated to magnetic field generation units attracting residues in gas and sensitive to field, where filter has honey-comb structure with porous walls

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2655750A1 (en) * 1976-12-09 1978-06-22 Hoechst Ag DEVICE FOR ACCOMODATION OF CORNIC CATALYSTS
DE2750960A1 (en) * 1977-11-15 1979-05-17 Daimler Benz Ag SOOT FILTER IN THE EXHAUST FLOW OF AIR-COMPRESSING COMBUSTION MACHINES
DE3024539A1 (en) * 1980-06-28 1982-04-01 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg DEVICE FOR ELIMINATING SOOT FROM THE EXHAUST GASES OF AN INTERNAL COMBUSTION ENGINE
DE3205810A1 (en) * 1982-02-10 1983-08-25 Texaco Development Corp., 10650 White Plains, N.Y. Process and device for treating the exhaust gases from internal combustion engines
DE3541685A1 (en) * 1985-11-26 1987-05-27 Rheinische Braunkohlenw Ag Process for purifying exhaust gases of a combustion engine
DE3614812A1 (en) * 1986-05-02 1987-11-05 Man Technologie Gmbh Particle filter for waste gases
US4813231A (en) * 1987-10-07 1989-03-21 Southwest Research Institute Engine exhaust after-treatment device
DE3807539A1 (en) * 1988-03-08 1989-09-21 Peter Voelskow Soot filters
DE3910554A1 (en) * 1988-04-11 1989-10-19 Volkswagen Ag Particle filter built up using perforated tubes closed at one end
DE3834920A1 (en) * 1988-10-13 1990-04-19 Man Nutzfahrzeuge Ag METHOD AND DEVICE FOR ELIMINATING SOOT SEPARATED IN AN EXHAUST FILTER OF AN INTERNAL COMBUSTION ENGINE
US4969328A (en) * 1986-10-21 1990-11-13 Kammel Refaat A Diesel engine exhaust oxidizer
DE4012719A1 (en) * 1990-04-21 1991-10-24 Roggenkamp Karl Heinz Engine esp. diesel engine exhaust gas purificn. by complete filtration - with gas permeable filter of refractory fibres to remove solid particles, e.g. soot
SU1746000A1 (en) * 1990-06-11 1992-07-07 Самарский авиационный институт им.акад.С.П.Королева Exhaust gas conveyer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH446812A (en) * 1965-10-06 1967-11-15 Miescher Hans Ueli Method and device for cleaning, detoxifying and soundproofing gas flows, in particular the exhaust gases from internal combustion engines
US3607131A (en) * 1969-02-05 1971-09-21 Us Navy Catalytic air purifier
US3733181A (en) * 1971-05-14 1973-05-15 Chemical Construction Corp Catalytic exhaust gas treatment apparatus
US5258164A (en) * 1991-04-05 1993-11-02 Minnesota Mining And Manufacturing Company Electrically regenerable diesel particulate trap

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2655750A1 (en) * 1976-12-09 1978-06-22 Hoechst Ag DEVICE FOR ACCOMODATION OF CORNIC CATALYSTS
DE2750960A1 (en) * 1977-11-15 1979-05-17 Daimler Benz Ag SOOT FILTER IN THE EXHAUST FLOW OF AIR-COMPRESSING COMBUSTION MACHINES
DE3024539A1 (en) * 1980-06-28 1982-04-01 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg DEVICE FOR ELIMINATING SOOT FROM THE EXHAUST GASES OF AN INTERNAL COMBUSTION ENGINE
DE3205810A1 (en) * 1982-02-10 1983-08-25 Texaco Development Corp., 10650 White Plains, N.Y. Process and device for treating the exhaust gases from internal combustion engines
DE3541685A1 (en) * 1985-11-26 1987-05-27 Rheinische Braunkohlenw Ag Process for purifying exhaust gases of a combustion engine
DE3614812A1 (en) * 1986-05-02 1987-11-05 Man Technologie Gmbh Particle filter for waste gases
US4969328A (en) * 1986-10-21 1990-11-13 Kammel Refaat A Diesel engine exhaust oxidizer
US4813231A (en) * 1987-10-07 1989-03-21 Southwest Research Institute Engine exhaust after-treatment device
DE3807539A1 (en) * 1988-03-08 1989-09-21 Peter Voelskow Soot filters
DE3910554A1 (en) * 1988-04-11 1989-10-19 Volkswagen Ag Particle filter built up using perforated tubes closed at one end
DE3834920A1 (en) * 1988-10-13 1990-04-19 Man Nutzfahrzeuge Ag METHOD AND DEVICE FOR ELIMINATING SOOT SEPARATED IN AN EXHAUST FILTER OF AN INTERNAL COMBUSTION ENGINE
DE4012719A1 (en) * 1990-04-21 1991-10-24 Roggenkamp Karl Heinz Engine esp. diesel engine exhaust gas purificn. by complete filtration - with gas permeable filter of refractory fibres to remove solid particles, e.g. soot
SU1746000A1 (en) * 1990-06-11 1992-07-07 Самарский авиационный институт им.акад.С.П.Королева Exhaust gas conveyer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6786041B2 (en) * 2000-02-16 2004-09-07 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification method and exhaust gas purification apparatus
FR2877692A1 (en) * 2004-11-09 2006-05-12 Peugeot Citroen Automobiles Sa Particle filter for exhaust line of diesel engine of motor vehicle, has gas outlet end associated to magnetic field generation units attracting residues in gas and sensitive to field, where filter has honey-comb structure with porous walls

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