[go: up one dir, main page]

EP1272745B1 - Boitier dote d'une couche de passivation et procede de production d'un corps porte-calalyseur dote d'un tel boitier - Google Patents

Boitier dote d'une couche de passivation et procede de production d'un corps porte-calalyseur dote d'un tel boitier Download PDF

Info

Publication number
EP1272745B1
EP1272745B1 EP01933823A EP01933823A EP1272745B1 EP 1272745 B1 EP1272745 B1 EP 1272745B1 EP 01933823 A EP01933823 A EP 01933823A EP 01933823 A EP01933823 A EP 01933823A EP 1272745 B1 EP1272745 B1 EP 1272745B1
Authority
EP
European Patent Office
Prior art keywords
honeycomb body
passivation layer
jacket tube
layer
housing
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
EP01933823A
Other languages
German (de)
English (en)
Other versions
EP1272745A1 (fr
Inventor
Rolf BRÜCK
Ludwig Wieres
Ferdi Kurth
Karl-Josef Schmitz
Hans-Günter FAUST
Jan Hodgson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2000118641 external-priority patent/DE10018641A1/de
Priority claimed from DE2000126697 external-priority patent/DE10026697A1/de
Application filed by Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Publication of EP1272745A1 publication Critical patent/EP1272745A1/fr
Application granted granted Critical
Publication of EP1272745B1 publication Critical patent/EP1272745B1/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
    • F01N3/08—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
    • 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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • 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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F01N3/2864—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets comprising two or more insulation layers
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49345—Catalytic device making
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/1234—Honeycomb, or with grain orientation or elongated elements in defined angular relationship in respective components [e.g., parallel, inter- secting, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12347—Plural layers discontinuously bonded [e.g., spot-weld, mechanical fastener, etc.]

Definitions

  • the present invention relates to a housing, in particular a jacket tube, for a honeycomb body and on the production of a honeycomb body with such a housing.
  • honeycomb bodies are used as catalyst carrier body preferably in exhaust systems of internal combustion engines, in particular of motor vehicles.
  • WO 99/37896 a method for producing a honeycomb body is described, which is surrounded by a jacket tube.
  • the honeycomb body and the Jacket tube have due to their different material properties and due to different temperatures during operation a differing thermal Stretching behavior on. It is therefore desirable to have a rigid connection between the honeycomb body and the jacket tube at at least one end region the honeycomb body or at least in certain sub-areas to avoid.
  • the sheathed material described in WO 99/37896 Honeycomb body executed with a cuff, which despite production engineering Tolerances of the jacket tube and the honeycomb body to ensure that direct Solder joints between honeycomb body and casing pipe in the at least an end portion of the honeycomb body can be avoided.
  • the use of a Cuff leads to the significant reduction of thermal stresses between Casing and honeycomb body, however, causes a higher production cost.
  • agents which provide a compound of metal surfaces during a high-temperature processing (such as sintering or Soldering) prevent.
  • These usually contain fine ceramic particles, one Binder, as well as a share of diluents and solvents.
  • the binder as well the diluent and the solvent are already at relatively low levels Temperatures are volatile.
  • the tendency of these volatilization means to maintain the vacuum significantly and the system by volatile components can be contaminated.
  • the present invention is based on the tasks to provide a housing for a honeycomb body, which selectively joining technical Compounds to compensate for the different expansion behavior of Honeycomb body and jacket tube allows and permanent fixation of the honeycomb body guaranteed for example in an exhaust system and the indication a method for producing a catalyst carrier body with such a Casing.
  • the housing according to the invention for a honeycomb body comprises a jacket tube with an inner wall, wherein the jacket tube for targeted prevention of technical joining with the honeycomb body in at least one section the inner wall has a passivation layer.
  • the passivation layer is thermally very stable and prevents any technical joining Connection of the metal surfaces in contact with each other.
  • the section where the passivation layer is located is located at the location of the jacket tube, at the later operation of the catalyst carrier body a relative movement between the honeycomb body and casing pipe is desired to prevent thermal stresses.
  • This is preferably the frontal region in which the hot exhaust gas on the catalyst carrier body meets. Even areas further inward can be so from technical joining be kept free.
  • the passivation layer prevents due to their insulating property a heat conduction from the honeycomb body to the jacket tube. This is for example especially important if after the shortest possible time after At the start of an automobile, the light-off temperature of a catalytic converter is to be achieved, in which an effective cleaning of the exhaust gas takes place.
  • the passivation layer is a surface oxide layer educated.
  • the oxides in particular the metal oxides, have a high thermal stability, which makes a connection more touching Metal surfaces prevented. It is also particularly advantageous that the oxides in be easily generated with components of the material of the jacket tube and an additional material for making the passivation layer is not needed.
  • Such a metal oxide layer may, for example, also by simply roughening the inner wall of the jacket tube in the section getting produced.
  • the passivation layer as a ceramic coating layer, in particular with aluminum oxide, executed.
  • the ceramic particles are characterized by particularly high Attractiveness to each other and a very good thermodynamic stability.
  • a ceramic layer of titanium oxide or magnesium oxide is also possible.
  • the passivation layer is more circumferential Strip formed. This ensures that in this section the entire circumference of the jacket tube solder joints between jacket pipe and honeycomb body avoided and a balance of different strain behavior be allowed.
  • the passivation layer in a jacket pipe section to arrange with strong curvature.
  • An oval shape of the housing is for example required if the installation of a catalyst carrier body with the housing bound to certain spatial conditions of an exhaust system is.
  • the passivation layer an axial length of 5 mm to 50 mm. This allows an exact alignment of the housing to the respective application. Is the case, for example arranged or diverge relatively close to an internal combustion engine thermal expansion behavior of honeycomb body and jacket tube is very strong the passivation layer is made with a larger axial length.
  • the passivation layer with a thickness of 0.03 mm to 0.12 mm. This allows in particular the compensation of Manufacturing tolerances of honeycomb body and casing pipe in the assembled Status.
  • the jacket tube is between the jacket tube and the ceramic Layer an adhesive layer arranged. This is especially advantageous when the ceramic layer is exposed to a high dynamic load is.
  • the adhesive layer allows a permanent connection of the ceramic Layer on the metallic surface of the jacket tube.
  • the passivation layer of the jacket tube it is particularly advantageous before assembly with a honeycomb body the passivation layer of the jacket tube to arrange a solder layer.
  • the passivation layer Although prevents the formation of solder joints between Honeycomb body and jacket tube. But if the honeycomb body, for example, from a variety of sheet metal layers produced by winding and / or stacking, so may be soldered by the solder disposed on the passivation layer adjacent ends of the sheet metal layers are guaranteed to each other. To this Way fluttering of end portions of the sheet metal layers is avoided and the life of such a honeycomb body increases.
  • the training a circumferential solder layer on the passivation layer has the consequence that all adjacent sheet metal layers are soldered together.
  • a catalyst carrier body with a housing according to the invention and a honeycomb body arranged therein executed.
  • the honeycomb body is made of sheet metal layers, at least partially are structured so that the honeycomb body for a exhaust gas flow through channels having.
  • the jacket tube encloses the honeycomb body at least partially and is in at least one axial portion with the honeycomb body joining technology connected is. The selective fiigetechnische connection of honeycomb body and Jacket tube ensures a long life of the catalyst carrier body.
  • the ceramic layer near an end face of the To arrange honeycomb body.
  • the portion with the ceramic layer for hot exhaust gas (upstream) is aligned compensated for the catalyst carrier body especially good the high thermal stress.
  • radially outer end portions the sheet layers of the honeycomb body to the ceramic layer.
  • the flutter This radially outer end portions can thus be reduced.
  • joining the adjacent end areas together connect to. This ensures a long life even at extreme dynamic Loads safely.
  • honeycomb body with the jacket tube soldered preferably high-temperature vacuum-soldered.
  • honeycomb body is in a known manner by stacking and / or winding of Formed sheet metal layers which are at least partially structured so that the honeycomb body having flowed through for an exhaust gas channels.
  • the honeycomb body becomes now introduced into the jacket tube. Thereafter, the solder joints are formed.
  • a catalyst carrier body can be produced, which on the one hand by a permanent connection of honeycomb body and Jacket tube distinguishes, on the other hand, but also a balance different Strain behavior. of honeycomb body and casing pipe permits. Thereby arise in the soldering process no vapors or gases, which is a formation of solder joints, especially in a vacuum.
  • the passivation layer is through generates selective, spatially limited heating of the at least one section.
  • the portion of the housing is therefore heated to a temperature and possibly also held on this to diffusion processes in the material and to allow on the inner wall of the housing.
  • Suitable in this regard in particular ferritic, aluminum and chromium containing materials which be heated to a temperature above 1100 ° C. This will get metal particles, in particular aluminum from the interior to the vicinity of the inner wall of the jacket tube, which now with the oxygen particles from the environment too react to the desired passivation layer.
  • the passivation layer can Consequently, be produced without a filler material.
  • the at least a section in the preparation of the passivation layer with an oxygen-containing Gas flows.
  • a rich on the inner wall Supply of oxygen molecules ensures that in the formation of a Surface oxide layer may be needed.
  • the generation of a Passivation layer very favored.
  • the jacket tube outside the at least one Section in the preparation of the passivation layer with a noble gas, in particular Argon, to flow.
  • a noble gas in particular Argon
  • the noble gas prevents the formation of the Oxide layer, because the noble gas does not react with the metal particles of the jacket tube and displaced the atmospheric oxygen.
  • the passivation layer by a chemical treatment of the at least one section manufacture.
  • the section with a chemical treated, which leads to the formation of a surface oxide layer.
  • This Process step is particularly suitable for cased pipes, with very small Manufactured manufacturing tolerances with respect to the male honeycomb body were. A thermal treatment without the honeycomb body and thus a thermal Delay can be prevented.
  • the passivation layer by applying a ceramic coating layer, in particular aluminum oxide, produced.
  • the method is before Forming the ceramic layer on the relevant section of the inner wall the cladding tube applied an adhesive layer.
  • This adhesive layer preferably has no volatile components to a to ensure a secure soldering process.
  • the ceramic layer by means of flame spraying form the jacket tube.
  • the flame spraying is characterized by a special uniform distribution of the ceramic layer on the inner wall of the Jacket tube off, causing pressure peaks in the jacket tube due to the adjacent Metal layers are avoided.
  • the method is before the Beloten the Inner wall of the jacket tube, in particular on the ceramic layer, applied an adhesive medium for producing a solder layer.
  • the adhesive medium has the task to fix the solder powder at the points of the jacket tube to which a solder joint should be executed during the later soldering process.
  • the Adhesive medium on the ceramic layer thereby ensures the arrangement of solder powder in the region of the honeycomb body in which a compound is undesirable with the jacket tube. This solder layer is used for later soldering adjacent metal layers of the honeycomb body with each other.
  • the method is during or after the Inserting the honeycomb body in the jacket tube on the honeycomb body end face Lot powder applied.
  • the end portions of the sheet metal layers soldered together near the front and the life of such a manufactured Catalyst carrier body increased.
  • the passivation layer by roughening the inner wall in the at least one section produced. It is particularly advantageous roughening with the manufacturing process Sandblasting and / or brushing takes place. Surprisingly prevented the resulting roughness of the inner wall wetting by a Lotstoff in this section, with a technical connection between Honeycomb body and jacket tube is prevented. Thus, a particularly inexpensive produced passivation layer specified.
  • Fig. 1 shows a honeycomb body 4 with an end face 12.
  • the honeycomb body has several sheet metal layers 9 produced by winding and / or stacking on the honeycomb body 4 is introduced into a jacket tube 1.
  • the jacket tube 1 has an inner wall 2, which has a section 14 with a passivation layer 3 having.
  • the portion 14 has a length 5, wherein the portion 14 in the joined Condition of the catalyst carrier body near the end face 12 of the honeycomb body 4 is arranged.
  • a solder layer 7 is additionally shown on the section 14, a solder layer 7 is additionally shown.
  • honeycomb body 4 After the honeycomb body 4 has been introduced into the jacket tube 1, this is done Forming the solder joints.
  • the honeycomb body 4 is then in the partial area 11 connected to the jacket tube 1 joining technology.
  • the passivation layer 3 prevented in section 14, a compound of the honeycomb body 4 with the jacket tube 1, so that in this section 14, the different thermal expansion behavior can be compensated.
  • the solder layer 7 ensures that the Sheet metal layers 9 are connected together.
  • Fig. 2 shows an end view of the catalyst carrier body according to the invention.
  • the jacket tube 1 encloses a plurality of sheet metal layers 9, wherein these rest with their end portions 13 on the casing tube 1.
  • the sheet metal layers have corrugated and smooth sheets 16, which are arranged so in that through-flow channels 10 are formed for an exhaust gas.
  • Fig. 3 shows schematically the structure of a housing according to the invention for a Honeycomb body, wherein the arrangement of different layers (3, 6, 7) in the section 14 of the jacket tube 1 is shown.
  • an adhesive layer 6 is arranged, which provides a permanent connection of the Passivation layer 3 on the casing tube 1 ensures.
  • the passivation layer 3 has a thickness 8, which according to the requirements of the catalyst carrier body is variable.
  • a solder layer 7 which shows a connection of adjacent end regions 13 of FIG Sheet metal layers 9 ensures.
  • the honeycomb body 4 shows a perspective and schematic illustration of an embodiment an oval casing tube 1 with honeycomb body 4 and passivation layer 3.
  • the honeycomb body has several generated by winding and / or stacking Sheet metal layers 9, which are at least partially structured so that they are suitable for an exhaust gas can flow through.
  • the honeycomb body 4 has a plurality of channels 10, which are bounded by smooth and / or corrugated sheets 16 and is of Enclosed the jacket tube 1.
  • the jacket tube 1 has an inner wall. 2 auf, which in a jacket pipe section 17 with a passivation layer. 3 is executed.
  • the sheath portion area 17 is the more curved area of the oval or elliptical jacket tube 1, according to experience a solder joint unfavorable.
  • a catalyst carrier body produced according to the invention makes it possible to compensate different expansion behavior of honeycomb body and casing pipe, wherein this preparation of such a catalyst support body a secure Soldering guaranteed, especially in the high-temperature vacuum brazing process.

Landscapes

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

Abstract

L'invention concerne le boîtier d'un corps en nid d'abeilles (4) comprenant un tube protecteur (1) doté d'une paroi interne (2). Le tube protecteur (1) présente, au moins dans une section de sa paroi interne (2), une couche de passivation (4) permettant la modification ciblée d'une liaison d'assemblage avec le corps en nid d'abeilles (4). L'invention concerne également un procédé de production d'un corps porte-catalyseur doté d'un corps en nid d'abeilles (4) ainsi qu'un boîtier selon l'invention. Un corps porte-catalyseur ainsi produit supprime les contraintes thermiques entre le corps en nid d'abeilles (4) et le tube protecteur (1) et garantit notamment un processus de brasage sûr même sous vide lors de la production.

Claims (28)

  1. Boítier pour un corps en nids d'abeilles métallique (4), comprenant un tube d'enveloppe métallique (1) avec une paroi intérieure (2), caractérisé en ce que pour empêcher sélectivement une liaison par technique de jointoiement avec un corps en nids d'abeilles métallique (4) le tube d'enveloppe (1) présente une couche de passivation (3) dans au moins une section (14) de la paroi intérieure (2).
  2. Boítier selon la revendication 1, caractérisé en ce que la couche de passivation (3) est réalisée en tant que couche d'oxyde surfacique.
  3. Boítier selon la revendication 1, caractérisé en ce que la couche de passivation (3) est réalisée comme une couche d'application céramique, notamment avec de l'oxyde d'aluminium.
  4. Boítier selon l'une des revendications 1 à 3, caractérisé en ce que la couche de passivation (3) est réalisée en tant que bande circonférentielle.
  5. Boítier selon l'une des revendications 1 à 3, le tube d'enveloppe (1) étant ovale ou elliptique, caractérisé en ce que la couche de passivation (3) est agencée dans une section de tube d'enveloppe à courbure plus forte (17).
  6. Boítier selon l'une des revendications 1 à 5, caractérisé en ce que la couche de passivation (3) a une longueur axiale (5) de 5 mm à 50 mm.
  7. Boítier selon l'une des revendications 1 â 6, caractérisé en ce que la couche de passivation (3) a une épaisseur (8) de 30 µm à 120 µm.
  8. Boítier selon l'une des revendications 1 à 7, la couche de passivation (3) étant réalisée comme couche céramique, caractérisé en ce qu'une couche adhésive (6) est agencée entre le tube d'enveloppe (1) et la couche d'application céramique (3).
  9. Boítier selon l'une des revendications 1 à 8, caractérisé en ce qu'une couche de matériau de brasure (7) est agencée sur la couche de passivation (3).
  10. Boítier selon la revendication 9, caractérisé en ce que la couche de matériau de brasure (7) est réalisée de manière circonférentielle sur la couche de passivation (3).
  11. Corps support de catalyseur avec un boítier selon l'une des revendications 1 à 10 et avec un corps en nids d'abeilles (4) de couches de tôle (9) qui sont structurées au moins partiellement de manière telle que le corps en nids d'abeilles (4) a des canaux (10) pouvant être traversés par un gaz d'échappement, le tube d'enveloppe (1) entourant au moins partiellement le corps en nids d'abeilles (4) et étant relié par technique de jointoiement dans au moins une région partielle axiale (11) au corps en nids d'abeilles (4).
  12. Corps support de catalyseur selon la revendication 11, caractérisé en ce que la couche de passivation (3) est agencée près d'une face frontale (12) du corps en nids d'abeilles (4).
  13. Corps support de catalyseur selon la revendication 11 ou 12, caractérisé en ce que des régions d'extrémité (13) se trouvant radialement à l'extérieur des couches de tôle (9) du corps en nids d'abeilles (4) s'appliquent contre la couche de passivation (3).
  14. Corps support de catalyseur selon la revendication 13, caractérisé en ce que les régions d'extrémité (13) appliquées contre la couche de passivation (3) sont reliées réciproquement par technique de jointoiement.
  15. Corps support de catalyseur selon l'une des revendications 11 à 14, caractérisé en ce que le corps en nids d'abeilles (4) est brasé au tube d'enveloppe (1), de préférence brasé sous vide à températures élevées.
  16. Procédé de fabrication d'un corps support de catalyseur avec un corps en nids d'abeilles (4) de couches de tôle (9) qui sont structurées au moins partiellement de manière telle que le corps en nids d'abeilles (4) a des canaux (10) pouvant être traversés par un gaz d'échappement, avec un tube d'enveloppe (1) ayant une paroi intérieure (2), lequel tube d'enveloppe (1) entoure au moins partiellement le corps en nids d'abeilles (4) et est brasé au corps en nids d'abeilles (4) dans au moins une région partielle axiale (11) dans quel cas pour éviter sélectivement une liaison de brasage avec le corps en nids d'abeilles (4) le tube d'enveloppe (1) est réalisé avec une couche de passivation (3) dans au moins une section (14) de la paroi intérieure (2), caractérisé par les étapes suivantes :
    fabrication d'un tube d'enveloppe (1) ;
    réalisation d'une couche de passivation (3) sur la paroi intérieure (2) du tube d'enveloppe (1) dans au moins une section (14), dans laquelle une liaison de brasage de tube d'enveloppe (1) avec le corps en nids d'abeilles (4) doit être empêchée ;
    garnissage de brasure au moins de régions partielles de la paroi intérieure (2) du tube d'enveloppe (1) ;
    réalisation du corps en nids d'abeilles (4) de manière connue en soi par empilage et/ou par enroulement de couches de tôle (9), qui sont structurées au moins partiellement de manière telle que le corps en nids d'abeilles (4) a des canaux (10) pouvant être traversés par un gaz d'échappement ;
    introduction du corps en nids d'abeilles (4) dans le tube d'enveloppe (1) ;
    réalisation des liaisons de brasage.
  17. Procédé selon la revendication 16, la couche de passivation (3) étant créée par le chauffage sélectif et limité dans l'espace de l'au moins une section (14).
  18. Procédé selon la revendication 17, caractérisé en ce que le chauffage de la section (14) est effectué par chauffage par induction.
  19. Procédé selon l'une des revendications 16 à 18, caractérisé en ce que lors de la fabrication de la couche de passivation (3) l'au moins une section (14) est affluée par un gaz contenant de l'oxygène.
  20. Procédé selon l'une des revendications 16 à 19, caractérisé en ce que dans la fabrication de la couche de passivation (3) le tube d'enveloppe (1) est afflué par un gaz noble, notamment par de l'argon, à l'extérieur de l'au moins une section (14).
  21. Procédé selon la revendication 16, caractérisé en ce que la couche de passivation (3) est fabriquée par un traitement chimique de l'au moins une section (14).
  22. Procédé selon la revendication 16, caractérisé en ce que la couche de passivation (3) est fabriquée en rapportant une couche d'application céramique, notamment de l'oxyde d'aluminium, sur l'au moins une section (14) de la paroi intérieure (2).
  23. Procédé selon la revendication 22, caractérisé en ce qu'une couche adhésive (6) est rapportée sur l'au moins une section (14) avant de réaliser la couche d'application céramique.
  24. Procédé selon la revendication 22 ou 23, la couche de passivation (3) étant réalisée en tant que couche d'application céramique qui est formée sur le tube d'enveloppe (1) au moyen de projection à la flamme.
  25. Procédé selon l'une des revendications 16 à 24, dans quel cas avant de garnir de brasure la paroi intérieure (2) du tube d'enveloppe (1) un médium adhésif est rapporté notamment sur la couche de passivation (3) pour fabriquer une couche de matériau de brasure (7).
  26. Procédé selon l'une des revendications 16 à 25, dans lequel durant ou après l'introduction du corps en nids d'abeilles (4) dans le tube d'enveloppe (1) de la poudre à braser est rapportée frontalement (12) sur le corps en nids d'abeilles (4).
  27. Procédé selon la revendication 16, dans lequel la couche de passivation (3) est fabriquée en rendant rugueuse la paroi intérieure (2) dans l'au moins une section (14).
  28. Procédé selon la revendication 27, la rugosification étant effectuée par les procédés de fabrication de sablage et/ou de brossage.
EP01933823A 2000-04-14 2001-04-12 Boitier dote d'une couche de passivation et procede de production d'un corps porte-calalyseur dote d'un tel boitier Expired - Lifetime EP1272745B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE2000118641 DE10018641A1 (de) 2000-04-14 2000-04-14 Gehäuse mit keramischer Innenschicht für einen Katalysatorträgerkörper und Verfahren zur Herstellung eines Katalysator-Trägerkörpers mit einem solchen Gehäuse
DE10018641 2000-04-14
DE2000126697 DE10026697A1 (de) 2000-05-30 2000-05-30 Gehäuse mit Passivierungsschicht und Verfahren zur Herstellung eines Katalysator-Trägerkörpers mit einem solchen Gehäuse
DE10026697 2000-05-30
PCT/EP2001/004220 WO2001079669A1 (fr) 2000-04-14 2001-04-12 Boitier dote d'une couche de passivation et procede de production d'un corps porte-calalyseur dote d'un tel boitier

Publications (2)

Publication Number Publication Date
EP1272745A1 EP1272745A1 (fr) 2003-01-08
EP1272745B1 true EP1272745B1 (fr) 2005-03-09

Family

ID=26005318

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01933823A Expired - Lifetime EP1272745B1 (fr) 2000-04-14 2001-04-12 Boitier dote d'une couche de passivation et procede de production d'un corps porte-calalyseur dote d'un tel boitier

Country Status (13)

Country Link
US (1) US6673466B2 (fr)
EP (1) EP1272745B1 (fr)
JP (1) JP4549606B2 (fr)
KR (1) KR100785680B1 (fr)
CN (1) CN1180175C (fr)
AU (1) AU2001260203A1 (fr)
BR (1) BR0110013B1 (fr)
DE (1) DE50105540D1 (fr)
MY (1) MY128166A (fr)
PL (1) PL204999B1 (fr)
RU (1) RU2264543C2 (fr)
TW (1) TW587967B (fr)
WO (1) WO2001079669A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027807A1 (de) * 2000-06-05 2002-01-31 Emitec Emissionstechnologie Blech mit Barriere für einen Wabenkörper
DE10217259A1 (de) * 2002-04-18 2003-11-13 Emitec Emissionstechnologie Katalysator-Trägerkörper mit Wellmantel und Verfahren zu dessen Herstellung
US7476366B2 (en) * 2002-04-18 2009-01-13 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Catalyst carrier body with corrugated casing and process for producing the same
US7404254B2 (en) * 2002-04-18 2008-07-29 Emitec Gesellschaft Fuer Emissions Technologie Mbh Calibrated catalyst carrier body with corrugated casing and method for manufacturing the same
US20050186127A1 (en) * 2002-10-18 2005-08-25 Emitec Gesellschaft Fur Emissionstechnologie Mbh Catalyst carrier body with passivation layer and method for producing the same
DE10251624A1 (de) * 2002-10-18 2004-04-29 Emitec Gesellschaft Für Emissionstechnologie Mbh Katalysator-Trägerkörper mit Passivierungsschicht sowie Verfahren zu dessen Herstellung
US7655194B2 (en) * 2005-01-18 2010-02-02 Dcl International Inc. Catalyst substrate support
US20060242951A1 (en) * 2005-04-29 2006-11-02 Caterpillar Inc. Refractory material retention device
DE102005045015A1 (de) * 2005-09-21 2007-03-29 Robert Bosch Gmbh Filterelement und Rußfilter mit verbesserter Thermoschockbeständigkeit
DE102005045492A1 (de) * 2005-09-23 2007-03-29 Emitec Gesellschaft Für Emissionstechnologie Mbh Wabenkörper mit stirnseitiger Hartlot-Zone
US8648006B2 (en) * 2005-10-13 2014-02-11 Velocys, Inc. Electroless plating in microchannels
DE102005054310A1 (de) * 2005-11-11 2007-05-16 Emitec Emissionstechnologie Wabenkörper für eine Abgasbehandlungseinheit
JP2008045414A (ja) * 2006-08-10 2008-02-28 Yamaha Marine Co Ltd 触媒の支持構造
DE102008022519A1 (de) * 2008-05-07 2009-11-12 Emitec Gesellschaft Für Emissionstechnologie Mbh Wabenkörper aus metallischen Folien und Verfahren zu dessen Herstellung
DE102010007499A1 (de) * 2010-02-09 2011-08-11 Umicore AG & Co. KG, 63457 Volumetrische Beschichtungsanordnung
DE102011119740A1 (de) 2011-11-30 2013-06-06 Emitec Gesellschaft Für Emissionstechnologie Mbh Diffusionssperrschicht bei einer Abgasbehandlungseinheit
TWI586471B (zh) * 2016-08-10 2017-06-11 Sentec E&E Co Ltd Metallic body of the core plate welding structure
EP3501633A1 (fr) 2017-12-19 2019-06-26 Yara International ASA Systèmes de support de catalyseur pour brûleurs d'oxydation d'ammoniac

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55126365A (en) * 1979-03-20 1980-09-30 Showa Alum Corp Production of tube for heat exchanger
DE3119289A1 (de) 1980-05-16 1982-03-18 United Technologies Corp., 06101 Hartford, Conn. "reservage-material fuer das vakuumschweissen"
FR2563900B1 (fr) * 1984-05-04 1986-10-31 Novatome Tube a double paroi pour un echangeur de chaleur et procede de realisation de ce tube
SU1483064A1 (ru) * 1987-10-30 1989-05-30 Филиал Научно-Исследовательского И Конструкторско-Технологического Института Тракторных И Комбайновых Двигателей Каталитический нейтрализатор
JPH0235920U (fr) * 1988-08-26 1990-03-08
US5403558A (en) * 1988-10-04 1995-04-04 Nippon Steel Corporation Heat and fatigue resistant metallic carrier for automobile exhaust gas-purifying catalyst
JPH0634927B2 (ja) * 1989-11-16 1994-05-11 トヨタ自動車株式会社 排気ガス浄化触媒用メタル担体
JPH0815559B2 (ja) * 1990-11-13 1996-02-21 新日本製鐵株式会社 耐熱応力・耐熱疲労特性の優れたレーストラック型自動車排ガス触媒用金属担体
DE4241469A1 (de) * 1992-12-09 1994-06-16 Emitec Emissionstechnologie Katalytischer Konverter mit zwei oder mehr Wabenkörpern in einem Mantelrohr und Verfahren zu seiner Herstellung
JP3153049B2 (ja) * 1993-07-01 2001-04-03 新日本製鐵株式会社 メタル担体の製造方法
JP3259081B2 (ja) * 1994-06-02 2002-02-18 日本冶金工業株式会社 耐熱疲労性に優れたメタル担体
JP3208027B2 (ja) * 1994-11-21 2001-09-10 昭和飛行機工業株式会社 触媒装置用メタル担体
DE19507299A1 (de) * 1995-03-02 1996-09-05 Emitec Emissionstechnologie Wabenkörper mit nur teilweiser Anbindung an ein Mantelrohr
DE19545025A1 (de) 1995-12-02 1997-06-05 Abb Research Ltd Verfahren zur Aufbringung einer metallischen Haftschicht für keramische Wärmedämmschichten auf metallische Bauteile
JPH10337A (ja) * 1996-06-19 1998-01-06 Nippon Steel Corp 金属製触媒コンバータおよびその製造方法
TW396112B (en) * 1996-10-10 2000-07-01 Engelhard Corp Honeycomb carrier body for catalytic converters and method for making same
DE19803012A1 (de) * 1998-01-27 1999-07-29 Emitec Emissionstechnologie Verfahren zum Beloten einer Anordnung
CN1103263C (zh) * 1998-01-27 2003-03-19 发射技术有限公司 给一装置加钎料的方法
DE10018641A1 (de) * 2000-04-14 2001-10-25 Emitec Emissionstechnologie Gehäuse mit keramischer Innenschicht für einen Katalysatorträgerkörper und Verfahren zur Herstellung eines Katalysator-Trägerkörpers mit einem solchen Gehäuse

Also Published As

Publication number Publication date
JP4549606B2 (ja) 2010-09-22
PL356903A1 (en) 2004-07-12
PL204999B1 (pl) 2010-02-26
JP2003531332A (ja) 2003-10-21
EP1272745A1 (fr) 2003-01-08
TW587967B (en) 2004-05-21
MY128166A (en) 2007-01-31
AU2001260203A1 (en) 2001-10-30
WO2001079669A1 (fr) 2001-10-25
CN1401051A (zh) 2003-03-05
US6673466B2 (en) 2004-01-06
CN1180175C (zh) 2004-12-15
DE50105540D1 (de) 2005-04-14
BR0110013B1 (pt) 2011-09-06
KR100785680B1 (ko) 2007-12-14
RU2264543C2 (ru) 2005-11-20
BR0110013A (pt) 2003-02-11
KR20020086518A (ko) 2002-11-18
US20030049484A1 (en) 2003-03-13

Similar Documents

Publication Publication Date Title
EP1272745B1 (fr) Boitier dote d'une couche de passivation et procede de production d'un corps porte-calalyseur dote d'un tel boitier
DE2947694C2 (de) Katalytträgermatrix zum Reinigen von Brennkraftmaschinen-Abgasen
EP1967712A2 (fr) Corps en nid d'abeille pouvant être chauffé électriquement et son procédé de fonctionnement
DE10046610C1 (de) Fest-Los-Lagerung eines Katalysator-Trägerkörpers
WO2002040838A1 (fr) Corps a structure en nid d'abeilles segmente et pouvant etre parcouru de maniere radiale
EP0778918B1 (fr) Reacteur catalytique
EP1212163B1 (fr) Procede de production d'un corps a nid d'abeilles fritte
DE10191463B4 (de) Katalysator-Trägerkörper mit Manschette und verkürztem Mantelrohr
EP1495216B1 (fr) Corps support de catalyseur comportant une gaine ondulee et procede de fabrication
DE102004018693B4 (de) Abgasanlage
WO2003087549A1 (fr) Corps support catalyseur calibre et dote d'une enveloppe ondulee et son procede de production
EP1503133B1 (fr) Element isolé thermiquement
DE10018641A1 (de) Gehäuse mit keramischer Innenschicht für einen Katalysatorträgerkörper und Verfahren zur Herstellung eines Katalysator-Trägerkörpers mit einem solchen Gehäuse
EP0693616B1 (fr) Dispositif pour la purification ou la décomposition de gaz d'échappement chauds
DE10190162B4 (de) Katalysator-Trägerkörper mit einer Dehnungen erlaubenden Manschette mit Mikrostrukturen
DE10026697A1 (de) Gehäuse mit Passivierungsschicht und Verfahren zur Herstellung eines Katalysator-Trägerkörpers mit einem solchen Gehäuse
DE102005017725A1 (de) Wabenkörper mit Doppelmantelrohr
EP1287237B1 (fr) Tube de protection a moulures thermo-isolantes
EP1551534B1 (fr) Porteur de catalyseur dote d'une couche de passivation et son procede de production
WO2004018098A1 (fr) Procede et dispositif de production de corps en nid d'abeilles et corps en nid d'abeilles
DE10017839A1 (de) Katalysator-Trägerkörper mit einer Dehnungen erlaubenden Manschette mit Mikrostrukturen
DE102021213769A1 (de) Vorrichtung zur Abgasnachbehandlung mit geringen Hohlräumen
WO2001094761A1 (fr) Tole avec barriere pour un corps en nid d'abeilles
DE10218856A1 (de) Kalibrierter Katalysator-Trägerkörper mit Wellmantel und Verfahren zu dessen Herstellung
EP4627200A1 (fr) Dispositif pour le post-traitement de gaz d'échappement

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

17P Request for examination filed

Effective date: 20021031

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCHMITZ, KARL-JOSEF

Inventor name: KURTH, FERDI

Inventor name: FAUST, HANS-GUENTER

Inventor name: BRUECK, ROLF

Inventor name: WIERES, LUDWIG

Inventor name: HODGSON, JAN

17Q First examination report despatched

Effective date: 20040406

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH CY DE ES FR GB IT LI

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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): DE ES FR GB IT

RBV Designated contracting states (corrected)

Designated state(s): DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50105540

Country of ref document: DE

Date of ref document: 20050414

Kind code of ref document: P

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050620

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20050602

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: 20051212

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20150420

Year of fee payment: 15

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

Ref country code: IT

Payment date: 20150429

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50105540

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH, 53797 LOHMAR, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 50105540

Country of ref document: DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50105540

Country of ref document: DE

Owner name: CONTINENTAL AUTOMOTIVE GMBH, DE

Free format text: FORMER OWNER: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH, 53797 LOHMAR, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

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

Effective date: 20160412

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: 20160412

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

Ref country code: IT

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

Effective date: 20160412

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50105540

Country of ref document: DE

Owner name: VITESCO TECHNOLOGIES GMBH, DE

Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE

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

Ref country code: FR

Payment date: 20200420

Year of fee payment: 20

Ref country code: DE

Payment date: 20200430

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50105540

Country of ref document: DE