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EP2420656B1 - Dispositif de nettoyage des gaz d'échappement, installation de gaz d'échappement, procédé de démontage - Google Patents

Dispositif de nettoyage des gaz d'échappement, installation de gaz d'échappement, procédé de démontage Download PDF

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Publication number
EP2420656B1
EP2420656B1 EP11176911.3A EP11176911A EP2420656B1 EP 2420656 B1 EP2420656 B1 EP 2420656B1 EP 11176911 A EP11176911 A EP 11176911A EP 2420656 B1 EP2420656 B1 EP 2420656B1
Authority
EP
European Patent Office
Prior art keywords
support pipe
catalytic converter
particle filter
exhaust gas
collar
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.)
Active
Application number
EP11176911.3A
Other languages
German (de)
English (en)
Other versions
EP2420656A2 (fr
EP2420656A3 (fr
Inventor
Arthur Wieland
Michael Krause
Felix Neumann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eberspaecher Exhaust Technology GmbH and Co KG
Original Assignee
Eberspaecher Exhaust Technology GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eberspaecher Exhaust Technology GmbH and Co KG filed Critical Eberspaecher Exhaust Technology GmbH and Co KG
Publication of EP2420656A2 publication Critical patent/EP2420656A2/fr
Publication of EP2420656A3 publication Critical patent/EP2420656A3/fr
Application granted granted Critical
Publication of EP2420656B1 publication Critical patent/EP2420656B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1827—Sealings specially adapted for exhaust systems
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • 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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/30—Removable or rechangeable blocks or cartridges, e.g. for filters
    • 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
    • Y10T29/49815—Disassembling

Definitions

  • the present invention relates to an exhaust gas purification device of an exhaust system of an internal combustion engine, in particular of a motor vehicle, having the features of the preamble of claim 1.
  • the invention also relates to an exhaust system equipped with such an exhaust gas purification device of an internal combustion engine, in particular of a motor vehicle.
  • the invention relates to a method for removing a catalyst unit in such an exhaust gas purification device.
  • a particle filter in particular a soot filter
  • an oxidation catalyst in particular a diesel oxidation catalyst
  • Modern exhaust gas purification devices of this type may expediently be designed such that the particle filter element is exchangeable.
  • the replacement or replacement of a particulate filter element may be required during the lifetime of the exhaust gas purifier or exhaust system because non-regenerable deposits may accumulate in the particulate filter during operation of the exhaust system, reducing the flow resistance of the particulate filter and the storage capacity for regenerable deposits.
  • catalyst poisoning there is also the fear for oxidation catalysts that they gradually lose their effectiveness during operation of the exhaust system.
  • catalysts that can not be regenerated can also be used occur, which can also be referred to as catalyst poisoning.
  • a generic emission control device is from the US 2006/053779 A1 known, in which the catalyst support tube and the particle filter support tube are respectively inserted into a receiving tube. These receiving heights each have a receiving tube collar, both of which protrude into the clamp connection, so that the clamp connection via the receiving tube collar sets the two receiving tubes together.
  • the two support tubes however, have at their ends in each case a flanged support tube collar with which the respective support tube is radially supported inside the associated receiving tube.
  • the present invention is concerned with the problem of providing an improved embodiment for an exhaust gas purification device or for an exhaust system equipped therewith, which is characterized in particular by the fact that it can be realized comparatively inexpensively.
  • the invention is based on the general idea of equipping the exhaust gas purification device with a catalyst unit and with a particulate filter unit, wherein the catalyst unit has a catalyst support tube and at least one oxidation catalyst element mounted in the catalyst support tube, while the particulate filter unit has a particulate filter support tube and at least one particulate filter element mounted in the particulate filter support tube.
  • the exhaust gas purification device further comprises a receiving tube, in which only one of the support tubes, preferably the catalyst support tube, is inserted axially.
  • the catalyst support tube is inserted into the receiving tube, so that when dissolved clamp connection and with removed particulate filter tube, the catalyst support tube with the respective catalyst element mounted therein, ie the entire catalyst unit, can be removed from the receiving tube.
  • the catalyst unit is arranged upstream of the particle filter unit, regardless of whether the particle filter unit or the catalyst unit is arranged in the receiving tube.
  • the catalyst support tube has the front side in the clamp connection on a circumferential, projecting outward catalyst tube collar.
  • the particle filter support tube also has a circumferential, outwardly projecting particle filter support tube collar in the clamp connection.
  • the three tube collars are axially adjacent to each other in the clamp connection, forming a three-layer structure or a sandwich structure. As a result, the realization of a sufficiently gas-tight clamp connection is facilitated.
  • the three tube collar can lie directly against each other or indirectly abut each other via at least one seal.
  • each axially supported collar each have a circumferential seal is formed, which may be configured in particular as a bead seal and preferably as a metal bead seal.
  • a circumferential seal is formed, which may be configured in particular as a bead seal and preferably as a metal bead seal.
  • the clamp connection may comprise a receiving tube clamping ring, which rests axially on the receiving tube collar on a side facing away from the Katalysatortragrohrkragen side.
  • the clamp connection may comprise a support tube clamping ring, which abuts axially on the respective support tube collar on a side facing away from the receiving tube collar side.
  • the clamp connection expediently comprises a clamp, which clamps the clamping rings towards each other axially. Since the three-layered collar structure is arranged axially between the two clamping rings, the axial clamping of the clamping rings simultaneously leads to an axial tensioning of the collars resting against each other axially.
  • the support tube clamping ring may have a smaller open inner cross section than the receiving tube clamping ring.
  • different outer geometries, in particular different outer cross sections of support tube and receiving tube can be compensated.
  • the clamping rings same outer cross sections have, which results in a certain symmetry within the clamp connection, which simplifies the realization of an effective clamp connection.
  • the clamping rings may have the same open internal cross sections, in which case the clamp connection is additionally equipped with a height compensation ring, which is arranged radially between the respective support tube and the support tube clamping ring.
  • a height compensation ring which is arranged radially between the respective support tube and the support tube clamping ring.
  • identical clamping rings can be used, wherein the geometry compensation or the compensation of the different outer cross sections of the receiving tube and support tube is realized by means of the height adjustment ring.
  • the term "height" in this context refers to the radial direction which extends transversely to the longitudinal direction of the tubes.
  • the clamping rings may in particular have the same outer cross sections.
  • the clamping rings are identical parts.
  • the above-mentioned height compensation ring and the receiving tube can have the same outer cross sections at least in the region of the clamp connection, which simplifies the use of identical clamping rings.
  • the exhaust gas purification device may comprise a housing with a housing wall, wherein the receiving tube penetrates the housing wall and is secured to the housing.
  • the pick-up tube is a stationary component relative to the housing.
  • the clamp connection is now expediently arranged outside the housing.
  • the pick-up tube protrudes out of the housing. This results in improved accessibility to the clamp connection.
  • the receiving tube is conveniently attached to the housing wall.
  • the housing wall can have a housing bottom, which is laterally bordered by a housing jacket.
  • the receiving tube now passes through the housing bottom and can in particular be fastened to the housing bottom.
  • the tubes so the support tubes and the receiving tube straight.
  • the support tubes can have the same inner cross sections.
  • a perforated sleeve can be arranged on a side facing away from the clamp connection side, which is then located in particular within the housing.
  • the housing itself may be designed as a silencer and / or comprise an SCR system, in particular with urea injection.
  • the expansion of the catalyst unit can be particularly easy to implement in the presented here exhaust gas purification device.
  • the clamp connection is opened.
  • the one unit e.g. the particle filter unit
  • the other unit e.g. the catalyst unit is removed axially from the receiving tube.
  • An exhaust gas purification device 2 comprises a catalyst unit 3 and a particle filter unit 4. Furthermore, the exhaust gas purification device 2 comprises a receiving tube 5 and a clamp connection 6.
  • the catalyst unit 3 comprises a catalyst support tube 7, at least one oxidation catalyst element 8 and at least one bearing 9, with the aid of which the respective oxidation catalyst element 8 is mounted in the catalyst support tube 7.
  • the catalyst support tube 7 extends in a straight line with respect to an axial direction 10.
  • the particle filter unit 4 consists of a particle filter support tube 11, at least one particle filter element 12 and at least one bearing 13, with the aid of which the respective particle filter element 12 is mounted in the particle filter support tube 11.
  • the particle filter support tube 11 also extends in a straight line parallel to the axial direction 10.
  • the two support tubes 7, 11 coaxially aligned relative to each other so that they are aligned axially with each other.
  • a preferred flow direction 14 is entered, in which the exhaust gas flows during operation of the exhaust gas purification device 2.
  • the particulate filter unit 4 is preferably arranged downstream of the catalyst unit 3.
  • a reverse flow direction 14 is also possible in principle.
  • the receiving tube 5 is also arranged parallel to the axial direction 10 and designed in a straight line.
  • the catalyst unit 3 is inserted axially into the receiving tube 5.
  • the particle filter unit 4 may instead be inserted axially into the receiving tube 5.
  • the reproduced here preferred embodiment will be explained in more detail, in which the catalyst unit 3 is inserted into the receiving tube 5. It is clear that the following explanations can be transferred analogously to the other embodiment, in which the particle filter unit 4 is inserted into the receiving tube 5.
  • the clamp connection 6 realizes a detachable connection between the components of the exhaust gas purification device 2, namely between the receiving tube 5, the catalyst unit 3 and the particulate filter unit 4.
  • the clamp connection 6 fixes the receiving tube 5, the catalyst support tube 7 and the particulate filter support tube 11 to each other.
  • the exhaust gas purification device 2 also has a housing 15 which is only partially shown and which has a housing wall 16 which encloses a housing interior 17.
  • the housing wall 16 has a housing bottom 18 shown here, which limits the housing interior 17 axially or frontally.
  • the housing wall 16 comprises a housing jacket 19, which is indicated by a broken line, and which encloses the housing 17 laterally or in the circumferential direction and which is firmly connected to the housing bottom 18 in a suitable manner.
  • the receiving tube 5 is mounted on the housing 15 so that it penetrates the housing wall 16 in the housing bottom 18 and projects outwardly from the housing 15.
  • the clamp connection 6 can be arranged outside of the housing 15.
  • the pickup tube 5 is also attached to the housing 15.
  • a bottom passage 20 is formed for this purpose on the housing bottom 18, in which the receiving tube 7 is inserted axially and on which the receiving tube 7 is fixed, in particular by means of a solder joint or by means of a welded connection.
  • a perforated sleeve 42 is arranged, which is arranged at a remote from the clamp connection 6 end of the support tube 5.
  • the sleeve 42 may have a bottom 43 at an end remote from the support tube 5 axial end, which may in particular also be perforated.
  • the receiving tube 5 a receiving tube collar 21 which is arranged on the receiving tube 5 the front side, is located in the clamp connection 6 and thereby projecting radially from the receiving tube 5 to the outside and rotates in the circumferential direction.
  • the catalyst support tube 7 has frontally within the clamp connection 6 on a circumferentially circumferential, radially outwardly projecting catalyst support tube collar 22.
  • the catalyst support tube collar 22 is supported axially on the receiving tube collar 21.
  • the P is axially on a side remote from the receiving tube 5 side of the catalyst support tube collar 22 supported.
  • the three abutting collars 21, 22, 23 form a three-layer structure, namely a sandwich structure in which the catalyst support tube collar 22 is disposed between the receiving tube collar 21 and the Pismefiltertragrohrkragen 23.
  • a circumferential seal 24 may be arranged between the receiving tube collar 21 and the catalyst support tube collar 22. Additionally or alternatively, between the catalyst support tube collar 22 and the Pumblefiltertragrohrkragen 23 also a circumferential seal 25 may be arranged.
  • the respective seal 24, 25 may be a bead seal, preferably a metal bead seal. Such a bead seal 24, 25 can in particular be integrally formed on the respective collar 21, 22, 23.
  • the clamp connection 6 comprises a receiving tube clamping ring 26, a supporting tube clamping ring 27 and a clamp 28.
  • the receiving tube clamping ring 26 is arranged axially on the receiving tube collar 21 on a side facing away from the catalyst supporting tube collar 22.
  • the supporting tube clamping ring 27 is arranged axially on the particle filter feed tube collar 23 on a side facing away from the catalyst supporting tube collar 22.
  • the clamp 28 is configured to clamp the two clamping rings 26, 27 towards each other axially when assembled.
  • the two clamping rings 26, 27 brace between them the three-layer sandwich structure of axially abutting collar 21, 22, 23 axially, which leads to the desired strength and tightness within the clamp connection 6.
  • the clamp 28 has in the example shown here at least one profile body 29, which has a substantially V-shaped profile in the longitudinal section shown and the clamping rings at a radially acting from outside to inside clamping force 26, 27 axially to each other drives. Further, the clamp 28 here comprises a tension band 30, in which by means of a corresponding, not shown here clamping device of the clamp 28 in the circumferential direction, a tensile force can be initiated. This tension band 30 transmits this tension oriented in the circumferential direction in the form of a radially inwardly oriented force to the respective profile body 29.
  • the supporting tube clamping ring 27 has an open inner cross section 31 which is smaller than an open inner cross section 32 of the receiving tube clamping ring 26.
  • the outer cross section 33 of the particle filter support tube 11 is smaller than the outer cross section 34 of the receiving tube 5.
  • an outer cross section 35 of the catalyst support tube 7 may be about the same size as the outer cross section 33 of the Pumblefiltertragrohrs 11. This makes it possible in particular, the flow cross sections of the particulate filter unit 4 and the catalyst unit 3 to dimension substantially the same size.
  • the clamping rings 26, 27 have the same size outer cross sections 36 and 37, respectively.
  • the clamp connection 6 comprises a height compensation ring 38.
  • This height compensation ring 38 is arranged radially between the particle filter support tube 11 and the support tube clamping ring 27.
  • a measured in the radial direction thickness 39 of the height adjustment ring 38 determines the "height", which can be compensated by means of the height adjustment ring 38.
  • this thickness 39 is chosen so large that it can compensate for the difference between the outer cross-section 34 of the receiving tube 5 and the outer cross-section 33 of the particle filter support tube 11.
  • the two clamping rings 26, 27 in terms of their outer cross-sections 36, 37 are sized equal, so that it is ultimately possible to make the two clamping rings 26, 27 as equal parts.
  • an outer cross-section 40 of the height compensation ring 38 within the clamp connection 6 is the same size as the outer cross section 34 of the receiving tube 5.
  • the height compensation ring 38 is dimensioned so large in terms of its axial length that it can be arranged completely within the clamp connection 6.
  • the height compensation ring 38 can have an inner chamfer 41 at least at an axial end face which faces the particle filter support tube collar 23 so that the height compensation ring 38 can be arranged as close as possible to the particle filter tube collar 23.

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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)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Claims (10)

  1. Dispositif de nettoyage des gaz d'échappement d'une installation de gaz d'échappement (1) d'un moteur à combustion interne, en particulier d'un véhicule automobile,
    - avec une unité de catalyseur (3) qui présente un tube porteur de catalyseur (7) et au moins un élément de catalyseur d'oxydation (8) logé dans le tube porteur de catalyseur (7),
    - avec une unité de filtre à particules (4) qui présente un tube porteur de filtre à particules (11) et au moins un élément de filtre à particules (12) logé dans le tube porteur de filtre à particules (11),
    - avec un tube de réception (5) dans lequel un des tubes porteurs (7, 11) est axialement enfiché,
    - avec une liaison à collier (6),
    - dans lequel le tube de réception (5) présente côté avant dans la liaison à collier (6) un collet de tube de réception (21) tournant, dépassant vers l'extérieur,
    - dans lequel le tube porteur de catalyseur (7) présente côté avant un collet de tube porteur de catalyseur (22) tournant, dépassant vers l'extérieur,
    - dans lequel le tube porteur de filtre à particules (11) présente côté avant un collet de tube porteur de filtre à particules (23) tournant, dépassant vers l'extérieur, caractérisé en ce
    - que le collet de tube porteur de catalyseur (22) et le collet de tube porteur de filtre à particules (23) sont agencés dans la liaison à collier (6),
    - que la liaison à collier (6) fixe par le biais du collet de tube de réception (21), du collet de tube porteur de catalyseur (22) et du collet de tube porteur de filtre à particules (23) le tube de réception (5), le tube porteur de catalyseur (7) et le tube porteur de filtre à particules (11) les uns sur les autres.
  2. Dispositif de nettoyage des gaz d'échappement selon la revendication 1,
    caractérisé en ce
    que le collet de tube porteur de catalyseur (22) est en appui axial sur le collet de tube de réception (21) alors que le collet de tube porteur de filtre à particules (23) est en appui sur un côté éloigné du tube de réception (5) axialement sur le collet de tube porteur de catalyseur (22).
  3. Dispositif de nettoyage des gaz d'échappement selon la revendication 2,
    caractérisé en ce
    qu'entre des collets (21, 22, 23) contigus axialement respectivement une garniture (24, 25) tournante, en particulier une garniture à moulure, de préférence une garniture à moulure métallique est réalisée, dans lequel en particulier entre le collet de tube de réception (21) et le collet de tube porteur de catalyseur (22) une telle garniture (24) et/ou entre le collet de tube porteur de catalyseur (22) et le collet de tube porteur de filtre à particules (23) une telle garniture (25) est agencée.
  4. Dispositif de nettoyage des gaz d'échappement selon la revendication 2 ou 3,
    caractérisé en ce
    que la liaison à collier (6) présente deux anneaux de serrage (26, 27) et un collier (28) serrant les deux anneaux de serrage (26, 27) l'un sur l'autre axialement, dans lequel en particulier il peut être prévu que l'un anneau de serrage soit configuré comme anneau de serrage de tube de réception (26) qui repose sur un côté éloigné du collet de tube porteur de catalyseur (22) axialement sur le collet de tube de réception (21) alors que l'autre anneau de serrage est configuré comme anneau de serrage de tube porteur (27) qui repose sur un côté éloigné du collet de tube porteur de catalyseur (22) axialement sur le collet de tube porteur (22, 23) respectif.
  5. Dispositif de nettoyage des gaz d'échappement selon la revendication 4,
    caractérisé en ce
    - que l'anneau de serrage de tube porteur (27) présente une section transversale intérieure (31) ouverte inférieure à l'anneau de serrage de tube de réception (26),
    - dans lequel en particulier il peut être prévu que les anneaux de serrage (26, 27) présentent des sections transversales extérieures (36, 37) identiques.
  6. Dispositif de nettoyage des gaz d'échappement selon la revendication 4,
    caractérisé en ce
    - que les anneaux de serrage (26, 27) présentent des sections transversales intérieures (31, 32) ouvertes identiques,
    - que la liaison à collier (6) présente un anneau de compensation de hauteur (38) qui est agencé radialement entre le tube porteur de filtre à particules (11) et l'anneau de serrage de tube porteur (27),
    - dans lequel en particulier il peut être prévu que les anneaux de serrage (26, 27) présentent des sections transversales extérieures (36, 37) identiques,
    - dans lequel en particulier il peut être prévu que les anneaux de serrage (26, 27) soient des pièces identiques.
  7. Dispositif de nettoyage des gaz d'échappement selon la revendication 6,
    caractérisé en ce
    que l'anneau de compensation de hauteur (38) et le tube de réception (5) présentent au moins dans la liaison à collier (6) des sections transversales extérieures (34, 40) identiques.
  8. Dispositif de nettoyage des gaz d'échappement selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce
    - que le dispositif de nettoyage des gaz d'échappement (2) présente un boîtier (15) avec une paroi de boîtier (16),
    - que le tube de réception (5) traverse la paroi de boîtier (16) et est fixé sur le boîtier (15),
    - que la liaison à collier (6) est agencée en dehors du boîtier (15),
    - dans lequel en particulier il peut être prévu que le tube de réception (5) soit fixé sur la paroi de boîtier (16),
    - dans lequel en particulier il peut être prévu que la paroi de boîtier (16) présente un fond de boîtier (18) qui est traversé par le tube de réception (5), dans lequel le tube de réception (5) est fixé en particulier sur le fond de boîtier (18).
  9. Installation de gaz d'échappement d'un moteur à combustion interne, en particulier d'un véhicule automobile, avec un dispositif de nettoyage de gaz d'échappement (2) selon l'une quelconque des revendications 1 à 8.
  10. Procédé de démontage d'une unité de catalyseur (3) pour un dispositif de nettoyage des gaz d'échappement (2) selon l'une quelconque des revendications 1 à 8,
    - pour lequel en premier lieu la liaison à collier (6) est ouverte,
    - pour lequel ensuite l'une unité (3, 4), de préférence l'unité de filtre à particules (4), est radialement retirée,
    - pour lequel ensuite l'autre unité (3, 4), de préférence l'unité de catalyseur (3), est axialement retirée du tube de réception (5).
EP11176911.3A 2010-08-19 2011-08-09 Dispositif de nettoyage des gaz d'échappement, installation de gaz d'échappement, procédé de démontage Active EP2420656B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010034743A DE102010034743A1 (de) 2010-08-19 2010-08-19 Abgasreinigungsvorrichtung, Abgasanlage, Ausbauverfahren

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EP2420656A2 EP2420656A2 (fr) 2012-02-22
EP2420656A3 EP2420656A3 (fr) 2015-03-25
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US (1) US8763375B2 (fr)
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EP3851649B1 (fr) * 2020-01-09 2023-10-25 Purem GmbH Système de gaz d'échappement

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CN105179056A (zh) * 2015-09-22 2015-12-23 重庆小康工业集团股份有限公司 发动机部件用连接装置
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EP2420656A2 (fr) 2012-02-22
EP2420656A3 (fr) 2015-03-25
US20120042638A1 (en) 2012-02-23
DE102010034743A1 (de) 2012-02-23
US8763375B2 (en) 2014-07-01

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