WO2015172984A1 - Procédé et système modulaire permettant l'assemblage d'un dispositif de post-traitement des gaz d'échappement - Google Patents

Procédé et système modulaire permettant l'assemblage d'un dispositif de post-traitement des gaz d'échappement Download PDF

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Publication number
WO2015172984A1
WO2015172984A1 PCT/EP2015/058644 EP2015058644W WO2015172984A1 WO 2015172984 A1 WO2015172984 A1 WO 2015172984A1 EP 2015058644 W EP2015058644 W EP 2015058644W WO 2015172984 A1 WO2015172984 A1 WO 2015172984A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiving
modular system
exhaust aftertreatment
exhaust
intermediate wall
Prior art date
Application number
PCT/EP2015/058644
Other languages
German (de)
English (en)
Inventor
Martin Klein
Daniel Stephan
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2015172984A1 publication Critical patent/WO2015172984A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—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
    • 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
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/084—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/089—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using two or more expansion chambers in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/22—Inlet and outlet tubes being positioned on the same side of the apparatus
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/02—Two or more expansion chambers in series connected by means of tubes
    • F01N2490/04—Two or more expansion chambers in series connected by means of tubes the gases flowing longitudinally from inlet to outlet only in one 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/02—Two or more expansion chambers in series connected by means of tubes
    • F01N2490/06—Two or more expansion chambers in series connected by means of tubes the gases flowing longitudinally from inlet to outlet in opposite directions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a method and modular system for constructing a device for the aftertreatment of exhaust gases of an internal combustion engine.
  • SCR selective catalytic reduction
  • the exhaust aftertreatment systems are realized space-related as a notice and / or vehicle-specific box, i.
  • a new design is created for each application, requiring new tools and proof of function through flow and manufacturing simulations, making the design of new designs complex and expensive.
  • a basic idea of the invention is to provide a modular system for constructing an exhaust aftertreatment device, which makes it possible to individually announce from a limited, as small as possible a number of different components.
  • An inventive modular system for constructing an exhaust aftertreatment device comprises at least one exhaust aftertreatment component, in particular an SCR catalyst; at least one inlet pipe; at least one outlet tube; at least a first side wall; at least one second sidewall; and at least one
  • Intermediate wall which can be arranged between the side walls.
  • an inlet opening for receiving the inlet pipe is formed or - - formed and in at least one of the side walls, an outlet opening for receiving the outlet pipe is formed or formed.
  • the at least one intermediate wall has at least one receiving device for receiving the exhaust gas aftertreatment component.
  • the two side walls and the at least one intermediate wall can be arranged in different orientations to one another and combined with each other, so that the inlet opening, the outlet opening and the receiving device for receiving the exhaust aftertreatment component relative to each other in different positions can be arranged.
  • easily exhaust aftertreatment devices with different design which is particularly easy to custom and vehicle-specific requirements customizable, be assembled without new tools for each new design and a new proof of function is required.
  • the invention also includes a method of building an exhaust aftertreatment device from at least two sidewalls and at least one intermediate wall, the method comprising: forming an inlet opening in one of the sidewalls; forming an outlet opening in one of the side walls; in or on at least one intermediate wall to form a receiving device for receiving the exhaust gas aftertreatment component; to guide at least one inlet pipe through the inlet opening; to guide at least one outlet tube through the outlet opening; attach the at least one exhaust aftertreatment component to or in the receptacle; and thereby arranging the at least two sidewalls and the at least one intermediate wall so as to provide an exhaust aftertreatment device that forms a flow path from the inlet pipe through the exhaust aftertreatment component to the outlet pipe
  • the arrangement of the side and intermediate walls can also take place before the inlet pipe, the outlet pipe and the exhaust gas after-treatment component are introduced into the openings formed in the walls or fastened to the receiving device.
  • the receiving device for receiving the exhaust aftertreatment component comprises an opening formed in the intermediate wall.
  • the exhaust gas aftertreatment component By introducing the exhaust gas aftertreatment component into an opening formed in the intermediate wall, the exhaust gas aftertreatment component can be attached to the intermediate wall in a particularly simple and secure manner.
  • An opening in the partition is easy and inexpensive auslagbar. In particular, in a rough intermediate wall at several - -
  • the side walls and the at least one intermediate wall can in particular be formed of identical raw walls, in each of which other openings are formed in order to create a side or intermediate wall.
  • the side and intermediate walls can be produced inexpensively as a uniform Rohoudre in large quantities; the function of a raw wall as a side or intermediate wall then results only by forming the corresponding openings at the desired locations.
  • the inlet tube and the outlet tube are identically formed tubes, which in particular have the same diameter. This variant is particularly cost-effective, since the inlet pipe and the outlet pipe can be made of the same raw material.
  • the inlet tube and the outlet tube have different lengths and / or diameters.
  • the inlet opening and the outlet opening must also be formed with different diameters corresponding to the diameter of the respective pipe.
  • the inlet opening and the outlet opening are formed in the same side wall, so that the supply and the discharge of the exhaust gases takes place on the same side of the exhaust gas aftertreatment device.
  • the inlet opening and the outlet opening may also be formed in different, in particular opposite side walls, so that the exhaust gases flow on one side into the exhaust aftertreatment device and on a second, in particular opposite side, flow out of the exhaust aftertreatment device.
  • the exhaust aftertreatment component comprises a catalyst, in particular an SCR catalyst, which is used for the reduction of nitrogen oxides in diesel exhaust gases.
  • the system includes at least one outer shell configured to enclose the exhaust aftertreatment device such that the exhaust aftertreatment device is completely sealed. Due to the modular structure, regardless of the specific combination of the individual components always the same outer jacket can be used, whereby the manufacturing and storage costs can be kept low.
  • Fig. 1a shows a first embodiment of an exhaust aftertreatment device according to the invention in the closed state.
  • Fig. 1 b shows the first embodiment of an exhaust aftertreatment device according to the invention in an open state in which the outer jacket has been removed.
  • Fig. 2a shows a second embodiment of an exhaust aftertreatment device according to the invention in the closed state.
  • Fig. 2b shows the second embodiment of an exhaust aftertreatment device according to the invention in an open state in which the outer jacket has been removed.
  • Fig. 3a shows a third embodiment of an exhaust aftertreatment device according to the invention in the closed state.
  • Fig. 3b shows the third embodiment of an exhaust aftertreatment device according to the invention in an open state in which the outer jacket has been removed.
  • FIG. 4a shows a fourth exemplary embodiment of an exhaust gas aftertreatment device according to the invention in the closed state.
  • Fig. 4b shows the fourth embodiment of an exhaust aftertreatment device according to the invention in an open state in which the outer jacket has been removed.
  • FIG. 5a shows a fifth exemplary embodiment of an exhaust gas aftertreatment device according to the invention in the closed state. - -
  • Fig. 5b shows the fifth embodiment of an exhaust aftertreatment device according to the invention in an open state in which the outer jacket has been removed.
  • FIG. 1 a shows a first embodiment of an exhaust aftertreatment device 2 according to the invention, which is realized as a box and closed by an outer jacket 20.
  • the exhaust aftertreatment device 2 has a substantially rectangular cross section, wherein the corners are slightly rounded in the illustrated embodiment.
  • the exhaust aftertreatment device 2 may in particular also have a square cross-section.
  • two circular openings are formed through which an inlet pipe 6 and an outlet pipe 8 are guided into the interior of the exhaust aftertreatment device 2.
  • FIG. 1 b shows the exhaust gas aftertreatment device 2 from FIG. 1 a after the outer jacket 20 has been removed in order to allow a view into the interior of the exhaust gas aftertreatment device 2.
  • the exhaust gas aftertreatment device 2 is delimited on the side shown on the right in FIG. 1b by a second side wall 12 which is arranged parallel to the first side wall 10 and double-walled in the exemplary embodiment shown in FIG. ie twice as thick as the first side wall 10 is formed.
  • the second side wall 12 may also be formed with the same thickness as the first side wall 10.
  • openings are prepared, which can be easily broken out. In the embodiment shown in Figure 1 b, however, the openings are not formed, but closed. Between the first side wall 10 and the second side wall 12, three identical partitions 14, 16, 18 are arranged, each parallel to the first and second - -
  • the intermediate walls 14, 16, 18 openings are formed, through which the inlet pipe 6 and an exhaust aftertreatment component 4, e.g. an SCR catalyst are guided so that exhaust gases flowing through the inlet pipe 6 in the exhaust aftertreatment device 2, through the inlet pipe 6 in a fourth chamber 30, which is bounded by the second side wall 12 and a third intermediate wall 18 opposite thereto, out from where they flow into the exhaust aftertreatment component 4.
  • an exhaust aftertreatment component 4 e.g. an SCR catalyst
  • the exhaust gases flow through the exhaust aftertreatment component 4 (from right to left in the illustration of FIG. 1b) and exit into a first chamber 24, which is delimited by the first side wall 10 and the adjacent first intermediate wall 14.
  • the outlet pipe 8 opens through a lower portion of the first side wall 10 into the first chamber 24, so that the exhaust gases, which have exited the exhaust aftertreatment component 4 in the first chamber 24, leave the exhaust aftertreatment device 2 through the outlet pipe 8.
  • a second intermediate wall 16 which comprises the inlet tube 6 extending through the first side wall 10 and the three intermediate walls 14, 16, 18 and the exhaust gas after-treatment component 4 extending through the three Partitions 14, 16, 18 extends, additionally supported and stabilized.
  • the person skilled in the art immediately recognizes that the use of three intermediate walls 14, 16, 18, as shown in FIG. 1 b, is only an example and that fewer, in particular one, or more intermediate walls 14, 16, 18 can also be used.
  • the number of partitions 14, 16, 18 is preferably chosen so that on the one hand the exhaust aftertreatment component 4 is securely supported and on the other hand, the number of partitions 14, 16, 18 is as small as possible to keep the cost and cost of production low.
  • intermediate walls 14, 16, 18 thus depends both on the stability of the intermediate walls 14, 16, 18 and the weight of the exhaust aftertreatment component 4.
  • the intermediate walls 14, 16, 18 are characterized by at least one rod 22, which is parallel to the inlet pipe 6 and the cylindrical exhaust gas - - Aftertreatment component 4 extends, interconnected to increase the stability of the arrangement.
  • the two side walls 10, 12 and the intermediate walls 14, 16, 18 can all be made of identically designed raw walls.
  • the rough walls all possibly required openings are prepared, but not fully formed, as it can be seen in the second side wall 12.
  • the rough walls can be produced inexpensively in large quantities in this way. The required openings are only created during the production of the exhaust aftertreatment device 2, in particular broke out, in order to provide the required side walls and intermediate walls 10, 12, 14, 16, 18 from the identical raw walls.
  • FIG. 1 shows a second embodiment of an exhaust aftertreatment device 2 according to the invention, in which the inlet tube 6 and the outlet tube 8 unlike in the embodiment shown in Figures 1 a and 1 b not in a lower, but in an upper region of the first side wall 10 are arranged.
  • FIG. 1 shows a second embodiment of an exhaust aftertreatment device 2 according to the invention, in which the inlet tube 6 and the outlet tube 8 unlike in the embodiment shown in Figures 1 a and 1 b not in a lower, but in an upper region of the first side wall 10 are arranged.
  • the unused opening 18a in the third partition wall 18 is closed in order to ensure that the exhaust gases can only flow from the first chamber 24 into the fourth chamber 30 through the exhaust gas after-treatment device 2.
  • the openings 14a, 16a in the first and second intermediate wall 14, 16, which are opened in FIG. 2b, can also be closed.
  • FIGS. 3 a and 3 b show a third exemplary embodiment, in which the inlet tube 6 and the outlet tube 8, as in FIG. 1 a, are located in a lower region of the first side wall 10
  • the exhaust gas aftertreatment device 2 are formed, but the positions of the inlet tube 6 and the outlet tube 8 are interchanged with respect to the first embodiment shown in FIGS. 1a and 1b.
  • Figures 4a and 4b show a fourth embodiment in which the inlet pipe 6 and the outlet pipe 8 are guided from different, opposite sides into the exhaust gas aftertreatment device 2.
  • the inlet tube 6 is guided here by the fourth chamber 30 formed in the first side wall 10 and the intermediate walls 14, 16, 18 between the third intermediate wall 18 and the second side wall 12.
  • the outlet pipe 8 extends "from the right" through openings formed in the second side wall 12 and in the third partition 18 into the third chamber 28 formed between the second partition 16 and the third partition 18.
  • the third chamber 28 is in fluid communication with the second chamber 26 through openings 14a, 16a formed in the first intermediate wall 14 and the second intermediate wall 16, so that also in this embodiment, the exiting from the exhaust aftertreatment component 4 exhaust gases (by the in the first partition wall 14 and the second partition wall 16 formed openings 14a, 16a) exit through the outlet pipe 8.
  • FIGS. 5a and 5b show a fifth embodiment in which the inlet pipe 6 and the outlet pipe 8 are formed on opposite sides of the exhaust aftertreatment device 2 as in the fourth embodiment shown in FIGS. 4a and 4b. Unlike in the fourth embodiment, the inlet pipe 6 and the outlet pipe 8 but not in the lower but in the upper region of the exhaust aftertreatment device 2 are arranged.
  • the person skilled in the art immediately sees that the embodiments shown in FIGS. 1 a to 5 b are only examples and that other arrangements of the components are also possible. In particular, arrangements / combinations are possible in which one of the tubes 6, 8 opens in an upper region and the other of the two tubes 6, 8 opens into a lower region of the exhaust aftertreatment device 2.
  • the inlet pipe 6, the outlet pipe 8 and the exhaust aftertreatment component 4 are each cylindrical in the illustrated embodiments with a circular cross section - - educated. It is easy to understand that other cross sections are possible.
  • the openings in side and intermediate walls 10, 12, 14, 16, 18 are of course in accordance with the cross section of the tubes 6, 8 and the exhaust aftertreatment component 4 form.
  • the exemplary embodiments shown in the figures illustrate that the modular system according to the invention makes it possible in a simple manner to provide differently constructed exhaust aftertreatment devices 2 by combining a small number of different standard elements without having to create and test new components.
  • the invention therefore considerably simplifies the production of vehicle-specific exhaust aftertreatment systems 2, as a result of which the production costs can also be significantly reduced.

Landscapes

  • 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)

Abstract

L'invention concerne un système modulaire permettant l'élaboration d'un dispositif de post-traitement des gaz d'échappement (2). Ledit système comprend au moins un élément de post-traitement des gaz d'échappement (4), au moins un tuyau d'admission (6), au moins un tuyau d'évacuation (8), au moins une première paroi latérale (10), au moins une deuxième paroi latérale (12) et au moins une paroi intermédiaire (14, 16, 18). Un orifice d'admission destiné à recevoir le tuyau d'admission (6) est formé ou peut être formé dans au moins une des parois latérales (10, 12) ; un orifice d'évacuation destiné à recevoir le tuyau d'évacuation (8) est formé ou peut être formé dans au moins une des parois latérales (10, 12) ; et la ou les parois intermédiaires (14, 16, 18) comprennent un dispositif de réception destiné à recevoir l'élément de post-traitement des gaz d'échappement (4). Les deux parois latérales (10, 12) et au moins une paroi intermédiaire (14, 16, 18) peuvent être combinées les unes avec les autres dans différentes orientations, afin de fournir des dispositifs de post-traitement des gaz d'échappement (2) présentant des assemblages différents.
PCT/EP2015/058644 2014-05-16 2015-04-22 Procédé et système modulaire permettant l'assemblage d'un dispositif de post-traitement des gaz d'échappement WO2015172984A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014209381.3A DE102014209381A1 (de) 2014-05-16 2014-05-16 Verfahren und modulares System zum Aufbau einer Abgasnachbehandlungsvorrichtung
DE102014209381.3 2014-05-16

Publications (1)

Publication Number Publication Date
WO2015172984A1 true WO2015172984A1 (fr) 2015-11-19

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WO (1) WO2015172984A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0484925A1 (fr) * 1990-11-07 1992-05-13 Ebara Corporation Silencieux avec catalyseur
EP0816648A1 (fr) * 1996-07-04 1998-01-07 ROTH-TECHNIK AUSTRIA Gesellschaft m.b.H. Silencieux pour véhicules automobiles
EP0939207A1 (fr) * 1998-02-27 1999-09-01 Institut Francais Du Petrole Nouvel élément catalytique destiné au traitement des gaz d'échappement d'un moteur à combustion interne
EP1262644A2 (fr) * 2001-06-01 2002-12-04 Nelson Burgess Limited Convertisseur catalytique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0484925A1 (fr) * 1990-11-07 1992-05-13 Ebara Corporation Silencieux avec catalyseur
EP0816648A1 (fr) * 1996-07-04 1998-01-07 ROTH-TECHNIK AUSTRIA Gesellschaft m.b.H. Silencieux pour véhicules automobiles
EP0939207A1 (fr) * 1998-02-27 1999-09-01 Institut Francais Du Petrole Nouvel élément catalytique destiné au traitement des gaz d'échappement d'un moteur à combustion interne
EP1262644A2 (fr) * 2001-06-01 2002-12-04 Nelson Burgess Limited Convertisseur catalytique

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