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EP0985086B1 - Carter de silencieux et son support de catalyseur avec element de retenue, ainsi que procede pour sa fabrication - Google Patents

Carter de silencieux et son support de catalyseur avec element de retenue, ainsi que procede pour sa fabrication Download PDF

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Publication number
EP0985086B1
EP0985086B1 EP98929350A EP98929350A EP0985086B1 EP 0985086 B1 EP0985086 B1 EP 0985086B1 EP 98929350 A EP98929350 A EP 98929350A EP 98929350 A EP98929350 A EP 98929350A EP 0985086 B1 EP0985086 B1 EP 0985086B1
Authority
EP
European Patent Office
Prior art keywords
support structure
catalyst support
retaining element
opening
carrier body
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
EP98929350A
Other languages
German (de)
English (en)
Other versions
EP0985086A1 (fr
Inventor
Rolf BRÜCK
Manfred Vierkötter
Johann Zehetner
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
Application filed by Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Publication of EP0985086A1 publication Critical patent/EP0985086A1/fr
Application granted granted Critical
Publication of EP0985086B1 publication Critical patent/EP0985086B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/002—Apparatus adapted for particular uses, e.g. for portable devices driven by machines or engines
    • 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
    • F01N3/2803—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
    • F01N3/2842—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb type
    • 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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single 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
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/04—Catalytic converters
    • 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
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • 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
    • F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing

Definitions

  • the invention relates to a silencer housing and an associated metallic catalyst carrier body for cleaning exhaust gas, in particular of small engines.
  • the invention further relates to a method for manufacturing a catalyst carrier body.
  • Catalyst carrier bodies for cleaning exhaust gas which Have holding elements.
  • FR 2 444 793 is a carrier body described, in which metallic clamping bands for fixing the position of the Package of the catalyst carrier body can be used.
  • the clamp bands are not intended to be attached to an exhaust pipe housing, rather, the exhaust pipe housing must have an additional one Operation, for which a special additional manufacturing device sections are required on the outer periphery of the catalyst carrier body be circumferentially formed in order to seal the To ensure carrier body in the exhaust pipe housing.
  • DE 38 29 668 includes an exhaust silencer for two-stroke engines a recording for a catalyst carrier body described, in which the intake through two profiled plates forms an exhaust gas space.
  • the catalyst carrier body in a known manner a jacket tube on which the plates are supported and fastened accordingly, the plates thus on the catalyst carrier body provided with a jacket tube are attached so that it points away from the support area as a whole, but does not penetrate it.
  • the profiled ones Plates also part of the exhaust pipe, so that the manufacturing such complicated profiled plates is expensive and especially for Small engine catalysts do not appear to be particularly suitable.
  • a catalyst support body is described in US Pat. No. 4,795,615 which jacket clamping strip to fix the position in the exhaust pipe system are provided.
  • the jacket clamping strips ensure a positional fixation in the exhaust pipe housing, but the catalyst carrier body must have additional devices so that it can be transported to installation can be kept dimensionally stable in the exhaust pipe housing.
  • EP 0 470 113 describes a catalyst carrier body which has a jacket pipe so that it is dimensionally stable to the installation location in an exhaust pipe system can be transported, the jacket tube a circumferential Has bead on which a holding plate can be attached. This bracket serves the further attachment of the holding plate, casing tube and Catalyst carrier body existing unit in the exhaust pipe housing.
  • DE 27 46 475 describes a catalyst carrier body, in which a tension band is placed around a carrier body, its overlapping ends on the inner circumference of the exhaust pipe housing are attached.
  • a tension band is placed around a carrier body, its overlapping ends on the inner circumference of the exhaust pipe housing are attached.
  • Such a strap serves the possibility to be able to transport the carrier bodies separately to the installation location, one mechanically stable in the exhaust pipe housing, also stable against vibrations
  • this is difficult because the strap is thermal Extend dimensions and therefore not overall in its scope can be connected to the exhaust pipe housing.
  • the carrier body described there is in a system of an inner and an outer casing tube arranged and held, which this serves a thermal and mechanical decoupling between the carrier body and to achieve the outer jacket tube.
  • This is the inside Jacket tube divided into at least three sections. The first section is essentially only along a portion of the length of the support body attached to this outside. The third part lies on the outer casing tube to a first section over a second, itself conically widening section connected. Because of this structure between the inner jacket tube in the first section and the outer jacket tube a gap along the circumference.
  • This gap prevents a heat emission from the inner jacket tube to the outer jacket tube by means of heat conduction and at the same time provides a compensation space for one radial expansion of the carrier body is available due to the heating. It is also known from WO 94/18441 that the assembly of the inner jacket tube on the outer jacket tube relieved by means of an annular bead can be used as a stop when inserted into the outer Jacket tube is used.
  • the object of the invention is a catalyst carrier and to create a process for its manufacture, which can be transported with dimensional stability is, no jacket pipe required and inexpensive to manufacture as well is easily adaptable and usable in an exhaust pipe housing. Also a Corresponding silencer housing for the installation of such catalyst carrier bodies should be created.
  • the metallic catalyst carrier body according to the invention serves the Cleaning exhaust gas, especially small engines, and has one Longitudinal axis as well as a variety of flow paths inside it, wherein the catalyst carrier body for mounting in an exhaust pipe housing is provided.
  • the carrier body is designed without a tubular casing and has a holding element with a Opening in it, which in the area of the opening part of the lateral surface surrounds the carrier body, in particular an entire circumference in essentially encloses, and is attached directly to the catalyst carrier body, wherein the holding element is fastened in the exhaust pipe housing and the Holds catalyst support body together dimensionally stable and / or essentially alone carries.
  • the Holding elements are plate-shaped.
  • the holding element is designed as a substantially flat plate.
  • the Using a flat plate is particularly advantageous since a flat one Plate with an opening adapted to the shape of the catalyst carrier body easy to manufacture and also easy on the inner shape of the exhaust pipe housing is customizable.
  • the opening of the holding element has a collar or a flange at its edge.
  • the collar can be produced using known manufacturing processes, such as, for example, a drawing process, when working in the opening.
  • the collar serves, among other things, for better fastening and ensuring better dimensional stability of the actual catalyst carrier body without a tubular casing. Welding the collar onto the catalyst carrier body is easier than welding into a collarless opening.
  • the holding element with the exhaust pipe housing which is an inflow chamber for the purifying exhaust gas flow and a discharge chamber for the cleaned.
  • the two chambers via the catalyst carrier body are interconnected, connectable so that a first Part of the support body faces the inflow chamber and a second Part of the carrier body of the outflow chamber which is sealed off from this in a sealing manner is facing.
  • the first and second part of the carrier body are preferably run about the same length.
  • Corresponding installation conditions of the catalyst carrier body in the exhaust pipe housing, especially if this one Silencer housing is; can, however, deviate length divisions make necessary.
  • the one with metallic honeycomb bodies usual form of layering, wrapping or devouring would be at least partially structured sheet metal layers to form a honeycomb package not sufficiently stabilized if precautions were not taken, that the association does not break up again. If about the one made Composite a holding element is pushed, is its dimensional stability guaranteed so that the catalyst carrier body with it directly attached holding element is transportable without the dimensional stability must be achieved via a casing tube or auxiliary devices.
  • the holding element is further designed so that it has the inner shape corresponds to the exhaust pipe housing and thus also the direct attachment serves within the exhaust pipe housing.
  • This attachment is made that a reliable, essentially sealing division of the Exhaust pipe housing in an inflow chamber, in which the to be cleaned Exhaust gas stream enters, and an outflow chamber into which the cleaned Exhaust gas stream enters from the catalyst carrier body, divided. So that is created a very inexpensive component, which in addition to a high Flexibility and adaptability to a wide variety of geometric configurations the exhaust pipe housing also has the decisive advantage has that different types of catalyst support bodies can be used. So radial catalysts, axial catalysts, i.e.
  • honeycomb bodies through which radial or axial flow can occur and also so-called diagonal catalysts can be used.
  • diagonal catalysts should be understood those which are inside the Catalyst carrier body have flow paths that are both radial and also have an axial directional component.
  • the holding element has an approximately elliptical for obliquely arranging one in cross section round catalyst carrier body in it.
  • the carrier body is arranged obliquely in the holding element, a larger area of the The size of the actual catalyst carrier body is kept dimensionally stable. In addition, an adjustment to the given space is easily possible.
  • a holding element can preferably act as a catalyst carrier body a body in axial design with honeycomb structure or in the same preferably also used in a radial design with a honeycomb structure become.
  • a method of manufacture a catalyst carrier body ready for installation in an exhaust pipe housing created in which this after winding or packaging or Entanglement of at least partially structured sheet metal layers directly from a manufacturing facility for manufacturing the actual catalyst carrier body inserted into an opening provided in the holding element and fastened there, in particular welded on or attached by positive locking, becomes.
  • the opening is preferably formed so that the longitudinal axis of the catalyst carrier body with respect to a direction substantially perpendicular to a plane characterizing the extent of the holding element is inclined, wherein the approximately plate-shaped holding element directly on the outer surface of the catalyst carrier body fully sealed in the area of the opening to a flange or a collar becomes.
  • the actual Catalyst carrier body only wound, layered or entwined, in particular from ceramic and / or catalytically active Material coated sheet metal layers at least in some areas without the Contact points of several superimposed layers are soldered. ever depending on the type of attachment of the holding element to the sheet metal layers, it can be necessary not to provide a coating at the connection points or remove them there. It may also be useful to have only one To provide part of the sheet metal layers with catalytically active material to the thermal stress due to the exothermic conversion of exhaust gas components to keep within limits.
  • the catalyst carrier body made from sheet metal layers of expanded metal.
  • the catalyst carrier body is preferably from one To wrap or stack the foil package body so that the foil package body can be brought into any form which enables the actual Catalyst carrier body in existing exhaust pipe housing accordingly to use the structural conditions.
  • the catalyst carrier is preferably from a film with a wave structure by random insertion in a room with internal dimensions and interior designs, which correspond to the outer shape of the actual catalyst carrier body.
  • the film having such a wave structure is, so to speak "shot" into such a space via a corresponding entry opening, so that a chaotically layered catalyst carrier body arises.
  • the holding element is preferably used as a partition in one.
  • Exhaust pipe casing inserted and glued there to the housing wall, welded, or with its edge in a peripheral edge of the housing rolled up so that two over the catalyst support body together connected chambers are formed.
  • an inventive one Silencer housing with slanted catalyst carrier body be formed.
  • FIG. 1 shows a catalyst carrier body 1 according to the invention, which by a holding element 3 in an opening provided therein 4 is held with an inclined longitudinal axis 2.
  • the holding element 3 is flat formed and has a rectangular shape, which for insertion into provided substantially rectangular exhaust pipe housing 6 is. So that the catalyst carrier body 1, which is round in cross section, obliquely in Holding element 3 can be held, the opening 4 in the holding element 3rd elliptical. For better fastening of the inner circumference the opening 4 of the holding element 3 with the outer periphery of the catalyst carrier body 1 can the extent of the opening 4 with a flange 5 are provided.
  • the catalyst carrier body 1 with the holding element 3 thus forms a unit which is transportable and which secures that after the winding, layering and / or devouring of the catalyst carrier body has taken place 1. it keeps its shape and does not accidentally move automatically dissolves again or from a compact to a non-compact loose shape springs back.
  • the Exhaust pipe housing 6 consists of an inflow chamber 10 enclosing Upper housing part 7, into which an exhaust gas inlet 9 opens, and from a housing part 8 enclosing an outflow chamber 11 which cleaned exhaust gas exits through an exhaust gas outlet.
  • the catalyst carrier body 1 is in a holding element 3 in the form of a flat plate kept, the outer dimensions of the inner dimensions of the housing upper part 7 and housing lower part 8 formed exhaust pipe housing 6 adapted are.
  • the holding element 3 is both with the catalyst carrier body 1 firmly in the opening 4 and essentially sealing as well on the inside of the exhaust pipe housing 6 firmly and essentially sealingly connected, so that the holding element 3 as a partition between the Inflow chamber 10 and the outflow chamber 11 is used.
  • the exhaust gas flow is deflected several times in the exhaust pipe housing, which also a good sound absorption is achieved.
  • FIG. 3 shows how a catalyst carrier body 1 without a tubular casing according to the invention with a rectangular and essentially flat Holding element 3 is provided.
  • the outer shape of the holding member 3 is designed so that the housing halves forming the exhaust pipe housing 6 7, 8, which have a circumferential flange edge between their flanged edges the plate with the housing by a circumference corresponding flanging process, welding process or the like known Connect the connection process to a uniform exhaust pipe housing 6.
  • the catalyst carrier body 1 is in the interior of the exhaust pipe housing 6 with, as shown in Fig. 3, inclined longitudinal axis 2 fixed arranged.
  • the exhaust gas flow passes through the exhaust gas inlet 9 into the Inflow chamber 10, which through the upper housing part 7 and the holding element 3 is formed. After passing through and thus after having passed Purification in the catalyst carrier body 1 occurs the cleaned exhaust gas stream via the discharge chamber 11 from the exhaust pipe housing 6 through the Exhaust outlet 12 from.
  • the catalyst carrier body 1 according to the invention with the holding element 3 is therefore adaptable to a wide variety of installation configurations, in which Manufacture of inexpensive catalyst especially for use in Small engines created. It can in particular be made from pre-coated sheet metal layers be built and is without additional elements and without a casing tube transportable, so that the production of the catalyst carrier body and Can be installed in a silencer at different locations, without additional. Manufacturing steps or transport locks required are.

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

Claims (14)

  1. Corps support de catalyseur métallique (1) destiné à l'épuration de gaz d'échappement, notamment d'un petit moteur, avec un élément de retenue (3) avec un axe longitudinal (2) et une multiplicité de trajectoires d'écoulement (14) dans son intérieur, le corps support de catalyseur métallique (1) étant adapté pour le montage dans un carter de conduite de gaz d'échappement (6), le corps support de catalyseur (1) étant retenu dans au moins un élément de retenue (3) avec une ouverture (4), l'élément de retenue (3) pouvant être fixé dans le carter de conduite de gaz d'échappement (6) et tenant ensemble de manière indéformable le corps support de catalyseur (1) et/ou le supportant sensiblement tout seul, caractérisé en ce que le corps support de catalyseur (1) ne présente pas de tube d'enveloppe, que l'au moins un élément de retenue (3) est réalisé sensiblement en forme de plaque et l'ouverture (4) a une saillie ou une collerette (5) qui n'entoure qu'une partie de la surface d'enveloppe du corps support de catalyseur (1) et qui est fixée directement sur le corps support de catalyseur (1).
  2. Corps support de catalyseur métallique (1) selon la revendication 1, dans quel cas le carter de conduite de gaz d'échappement (6), notamment un carter de silencieux, a une chambre d'affluence (10) pour le gaz d'échappement devant être épuré et une chambre d'effluence (11) pour le gaz d'échappement épuré et dans le cas duquel l'élément de retenue (3) peut être relié au carter de conduite de gaz d'échappement (6) de telle manière qu'une première partie du corps support de catalyseur (1) est tournée vers la chambre d'affluence (10) et une deuxième partie du corps support de catalyseur (1) est tournée vers la chambre d'effluence (11), cette dernière étant séparée sensiblement de manière étanche de la chambre d'affluence (10), de sorte que le gaz d'échappement puisse couler à travers le corps support de catalyseur (1) à partir de la chambre d'affluence (10) dans la chambre d'effluence (11).
  3. Corps support de catalyseur métallique (1) selon la revendication 1 ou 2 dans le cas duquel l'élément de retenue (3) est une plaque sensiblement plane, le corps support de catalyseur (1) faisant saillie des deux cotés de la plaque avec la même extension.
  4. Corps support de catalyseur métallique (1) selon l'une des revendications 1 à 3, dans le cas duquel l'ouverture (4) de l'élément de retenue (3) est réalisé en forme d'ellipse pour l'agencement oblique là dedans d'un corps support de catalyseur (1) ayant une section circulaire.
  5. Corps support de catalyseur métallique (1) selon l'une des revendications précédentes, dans le cas duquel l'ouverture (4) de l'élément de retenue (3) présente à son bord au moins dans des zones partielles une collerette (5) pour la fixation du corps support de catalyseur (1).
  6. Corps support de catalyseur métallique (1) selon la revendication 4, dans quel cas l'ouverture en forme d'ellipse (17) présente au niveau de ses cotés étroits respectivement une zone partielle bridée (5), les deux zones partielles étant de préférence bridées vers de différents cotés de l'élément de retenue (3) en un angle obtus et étant formées de telle manière qu'elles s'appliquent contre un corps support de catalyseur (1) introduit obliquement.
  7. Corps support de catalyseur métallique (1) selon l'une des revendications 1 à 6, qui est réalisé en tant que corps en nids d'abeilles pouvant être traversé.
  8. Corps support de catalyseur métallique (1) selon l'une des revendications précédentes, sensiblement constitué de couches de tôles (15) au moins partiellement structurées, qui sont enroulées, empilées et/ou entre-enroulées de sorte qu'elles forment des canaux (14) pouvant être traversés par des gaz d'échappement, dans quel cas de préférence avant l'enroulement, l'empilage, respectivement l'entre-enroulement, les couches de tôles (15) sont, au moins dans des zones partielles, revêtues de matériau à effet catalytique.
  9. Procédé destiné à la fabrication d'un corps support de catalyseur (1) prêt à être monté dans un carter de conduite de gaz d'échappement (6) et ayant les caractéristiques selon l'une des revendications 1 à 8, dans le cas duquel après l'achèvement du corps support de catalyseur (1) en soi dans un dispositif de fabrication celui-ci est directement guidé du dispositif de fabrication dans une ouverture (4) d'un élément de retenue (3) ayant approximativement la forme d'une plaque et l'élément de retenue (3) est directement fixé sur la surface extérieure du corps support de catalyseur (1) ne présentant pas de tube d'enveloppe, dans la zone de l'ouverture (4) sur une saillie ou une collerette (5), de préférence soudé (13) ou lié par coopération de formes.
  10. Procédé selon la revendication 9, dans le cas duquel le corps support de catalyseur (1) est empilé, enroulé et/ou entre-enroulé dans le dispositif de fabrication à partir de couches de tôles (15) au moins partiellement structurées, revêtues de matériau céramique et/ou de matériau à effet catalytique.
  11. Carter de silencieux (6) pour le système de gaz d'échappement d'un petit moteur avec un corps support de catalyseur (1) et avec une chambre d'affluence (10) et une chambre d'effluence (11), qui sont séparées l'une de l'autre par une paroi de séparation (3), la paroi de séparation (3) étant réalisée en tant qu'élément de retenue (3) pour un corps support de catalyseur métallique (1), caractérisé en ce que le corps support de catalyseur (1) est réalisé sans tube d'enveloppe et est monté obliquement dans une ouverture (4) dans l'élément de retenue (3) approximativement en forme de plaque, l'ouverture présentant une saillie ou une collerette (5) qui n'entoure qu'une partie de la surface d'enveloppe du corps support de catalyseur (1) et est directement fixée sur le corps support de catalyseur (1).
  12. Carter de silencieux selon la revendication 11, dans quel cas l'ouverture dans la paroi de séparation (3) est elliptique et présente dans la zone de ses cotés étroits un bord bridé (5) qui par technique de jointoiement est relié directement au corps support de catalyseur (1), notamment soudé (13).
  13. Carter de silencieux (6) selon la revendication 11 ou 12, dans quel cas le corps support de catalyseur (1) est monté de telle manière que les gaz d'échappement dans le carter de silencieux (6) est dévié à plusieurs reprises.
  14. Carter de silencieux (6) selon l'une des revendications 11 à 13, dans quel cas le corps support de catalyseur (1) est supporté sur un coté ou sur deux cotés sur le carter de silencieux (6).
EP98929350A 1997-05-27 1998-05-20 Carter de silencieux et son support de catalyseur avec element de retenue, ainsi que procede pour sa fabrication Expired - Lifetime EP0985086B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19722202 1997-05-27
DE19722202A DE19722202A1 (de) 1997-05-27 1997-05-27 Schalldämpfergehäuse und zugehöriger Katalysator-Trägerkörper mit Halteelement sowie Verfahren zu dessen Herstellung
PCT/EP1998/002969 WO1998054445A1 (fr) 1997-05-27 1998-05-20 Carter de silencieux et son support de catalyseur avec element de retenue, ainsi que procede pour sa fabrication

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EP0985086A1 EP0985086A1 (fr) 2000-03-15
EP0985086B1 true EP0985086B1 (fr) 2002-10-02

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US (1) US6821491B1 (fr)
EP (1) EP0985086B1 (fr)
JP (1) JP4153565B2 (fr)
KR (1) KR100515216B1 (fr)
CN (1) CN1252379C (fr)
AU (1) AU7914398A (fr)
BR (1) BR9809688A (fr)
DE (2) DE19722202A1 (fr)
RU (1) RU2191271C2 (fr)
WO (1) WO1998054445A1 (fr)

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TWI255572B (en) * 2004-05-05 2006-05-21 Advanced Connectek Inc A portable electrical power unit with transmission display
AT500745B8 (de) * 2005-02-02 2007-02-15 Pankl Emission Control Systems Abgasreinigungsvorrichtung
US20060179819A1 (en) * 2005-02-14 2006-08-17 Sullivan John T System and method for reducing vehicle emissions and/or generating hydrogen
US7523607B2 (en) * 2005-02-14 2009-04-28 John Timothy Sullivan System and method for reducing vehicle emissions and/or generating hydrogen
US7527774B2 (en) * 2005-12-22 2009-05-05 Basf Catalysts Llc Inlet metallic foam support coupled to precious metal catalyst for application on 4 stroke platforms
CA2772126C (fr) 2008-08-27 2016-10-18 Vida Holdings Corp. Ltd. Appareil convertisseur catalytique
US10184398B2 (en) * 2013-10-17 2019-01-22 Rohr, Inc. Acoustic structural panel with slanted core
WO2017054179A1 (fr) * 2015-09-30 2017-04-06 Robert Bosch Gmbh Système et boîte de post-traitement des gaz d'échappement du type à mélange par tourbillon
US10598068B2 (en) 2015-12-21 2020-03-24 Emissol, Llc Catalytic converters having non-linear flow channels
CN106593579B (zh) * 2016-12-15 2019-02-19 重庆泽创机电有限公司 消声器主体总成
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JP2022163291A (ja) * 2021-04-14 2022-10-26 株式会社やまびこ 層状掃気式エンジン用マフラ
KR102822737B1 (ko) * 2023-02-08 2025-06-18 정성윤 차량용 소음기 및 이로부터 추출되는 폐촉매를 관리하는 방법

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Publication number Publication date
EP0985086A1 (fr) 2000-03-15
CN1252379C (zh) 2006-04-19
AU7914398A (en) 1998-12-30
RU2191271C2 (ru) 2002-10-20
JP4153565B2 (ja) 2008-09-24
CN1261422A (zh) 2000-07-26
DE19722202A1 (de) 1998-12-03
US6821491B1 (en) 2004-11-23
WO1998054445A1 (fr) 1998-12-03
JP2001526758A (ja) 2001-12-18
BR9809688A (pt) 2000-07-11
KR20010012971A (ko) 2001-02-26
KR100515216B1 (ko) 2005-09-16
DE59805813D1 (de) 2002-11-07

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