EP3149302A1 - Exhaust-gas after-treatment device - Google Patents

Exhaust-gas after-treatment device

Info

Publication number
EP3149302A1
EP3149302A1 EP15714421.3A EP15714421A EP3149302A1 EP 3149302 A1 EP3149302 A1 EP 3149302A1 EP 15714421 A EP15714421 A EP 15714421A EP 3149302 A1 EP3149302 A1 EP 3149302A1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
chambers
exhaust
muffler
chamber
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.)
Granted
Application number
EP15714421.3A
Other languages
German (de)
French (fr)
Other versions
EP3149302B1 (en
Inventor
Andreas Döring
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.)
MAN Energy Solutions SE
Original Assignee
MAN Diesel and Turbo SE
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 MAN Diesel and Turbo SE filed Critical MAN Diesel and Turbo SE
Publication of EP3149302A1 publication Critical patent/EP3149302A1/en
Application granted granted Critical
Publication of EP3149302B1 publication Critical patent/EP3149302B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F01N13/011—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 purifying devices arranged in parallel
    • F01N13/017—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 purifying devices arranged in parallel 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/003—Silencing apparatus characterised by method of silencing by using dead chambers communicating with gas flow passages
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • F01N2330/04—Methods of manufacturing
    • 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
    • F01N2490/10—Two or more expansion chambers in parallel
    • 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
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications

Definitions

  • the invention relates to an exhaust aftertreatment device.
  • an internal combustion engine can be arranged downstream of both catalytic converters and silencers as exhaust aftertreatment assemblies.
  • the catalysts are used in particular for denitrification and / or desulfurization of the exhaust gas and thus the reduction of nitrogen oxide emissions and sulfur oxide emissions.
  • the silencers are used for noise reduction and thus the reduction of noise emissions.
  • the catalysts and mufflers are always designed as separate modules, resulting in a high space requirement.
  • the present invention has the object to provide a novel exhaust aftertreatment device.
  • the exhaust gas aftertreatment device has a housing through which exhaust gas flows, wherein exhaust gas cleaning chambers are formed in the housing and receive catalytic converters and / or particle filters for exhaust gas purification; wherein in the housing silencer chambers are formed, which have a defined depth for sound absorption in the flow direction, and wherein the exhaust gas purification chambers and the silencer chambers spatially serially and flow side are arranged parallel to each other.
  • exhaust gas cleaning components such as catalysts and / or particulate filter and on the other side muffler in an exhaust aftertreatment device, whereby the space requirement compared to the prior art can be reduced.
  • At least some muffler chambers have different depths. Then, if at least some muffler chambers have different depths, different frequencies can be damped in the muffler chambers, so that then a broadband noise attenuation is possible.
  • the exhaust gas cleaning chambers and the muffler chambers are arranged on the flow side parallel to each other, that an exhaust gas stream, which flows through the housing, into a number N exhaust partial streams can be divided, each of which at least one individual exhaust gas for each of the partial exhaust gas streams and preferably at least one for each of the exhaust gas streams flow through individual muffler chamber, the exhaust gas streams can be unified after flowing through the exhaust gas purification chambers and muffler chambers to the exhaust stream.
  • a particularly effective exhaust gas purification in the catalysts and / or particulate filters and on the other hand a particularly effective noise reduction in the muffler chambers with a small space requirement is possible.
  • i 1 to (N-1)
  • This also allows effective exhaust gas cleaning and effective noise reduction while reducing the space requirement.
  • Fig. 1 a schematic representation of an exhaust aftertreatment device according to the invention.
  • the invention relates to an exhaust gas aftertreatment device for an internal combustion engine, in particular for a heavy fuel oil operated marine diesel engine.
  • FIG. 1 shows an exemplary embodiment of an exhaust aftertreatment device 10 according to the invention, the exhaust aftertreatment device 10 having a housing 11 through which exhaust gas flows.
  • the housing 11 has an inlet 12 and an outlet 26 for the exhaust gas 25 flowing through the housing 11 of the exhaust aftertreatment device 10.
  • exhaust gas purification chambers 13, 14, 15 are formed, which receive the exhaust gas purification of the housing 11 of the exhaust gas aftertreatment device 10 by flowing exhaust gas 25 catalysts 16, 17, 18 and / or particulate filter.
  • muffler chambers 19, 20, 21, 22, 23, 24 are formed, which have a defined depth t19, t20, t21, t22, t23, t24 for sound damping in the direction of flow.
  • exhaust gas cleaning chambers 13, 14, 15 and muffler chambers 19, 20, 21, 22, 23, 24 are on the one hand spatially serial and on the other hand flow side arranged parallel to each other.
  • the exhaust gas cleaning chambers 13, 14, 15 and the muffler chambers 19 to 24 are arranged parallel to each other on the flow side, that an exhaust gas stream 25, which enters the housing 11 of the exhaust aftertreatment device 10, into a number N partial exhaust gas streams 25 a, 25 b and 25 c is divisible, the According to FIG. 1, at least one individual exhaust gas purification chamber 13, 14 or 15 flows through each of the exhaust gas partial flows 25a, 25b and 25c.
  • the exhaust partial flow 25a flows through the exhaust gas purification chamber 13, the exhaust gas partial flow 25b through the exhaust gas purification chamber 14 and the exhaust gas partial flow 25c through the exhaust gas purification chamber 15.
  • each of the exhaust partial streams 25a, 25b and 25c at least one for the respective partial exhaust gas flow 25a, 25b and 25c individual muffler chamber, the partial exhaust gas flow 25a the individual muffler chamber 20, the exhaust partial flow 25b the individual muffler chamber 22, the exhaust partial flow 25c the individual muffler chamber 23 through - flows. Accordingly, all the exhaust gas purification chambers 13, 14 and 15 for the exhaust gas streams 25a, 25b and 25c as for the respective partial exhaust streams 25a, 25b and 25c individual exhaust gas purification chambers 13, 14, 15 is always only one of the exhaust gas streams 25a, 25b and 25c flows through.
  • Some of the muffler chambers 19 to 24, namely the muffler chambers 20, 22 and 23 are also designed as individual muffler chambers for the exhaust gas streams 25a, 25b and 25c, so that the muffler chambers 20, 22 and 23 only ever from one of the exhaust gas streams 25a, 25b and 25c are flowed through.
  • Other muffler chambers 19, 21, 24, however, are designed as common muffler chambers, which are flowed through jointly by a plurality of the exhaust gas partial flows 25a, 25b and 25c.
  • the muffler chamber 19 is flowed through by the entire exhaust gas flow 25 and therefore by all three exhaust gas partial flows 25a, 25b and 25c.
  • the muffler chamber 21 is flowed through by the two partial exhaust gas streams 25b and 25c.
  • the muffler chamber 24 in turn flows through the entire exhaust gas flow 25.
  • N 3
  • the exhaust stream 25 is thus divided into three partial exhaust streams 25a, 25b and 25c.
  • the exhaust gas stream 25 can also be divided into only two or more than three partial exhaust streams.
  • the exhaust gas cleaning chambers 13 to 15 and the muffler chambers 19 to 24 are also arranged spatially serially relative to each other so that the or each individual exhaust gas cleaning chamber 13, 14, 15 and the or each individual muffler chamber 20, 22, 23 of an i-th exhaust gas partial flow spatially before the o- of each individual exhaust gas purification chamber and individual silencer chamber of an (i + 1) -th partial exhaust gas stream is arranged.
  • a plurality of catalytic converters 16 to 18 and / or particulate filters can be integrated into the plurality of exhaust gas purification chambers 13 to 15, wherein a plurality of muffler chambers 19 to 24 are also integrated in one and the same housing 11.
  • both effective exhaust gas purification in the exhaust gas purification chambers 13 to 15 and effective sound damping in the muffler chambers 19 to 24 can be ensured in one and the same exhaust aftertreatment device 10, specifically with minimal space requirement of the exhaust aftertreatment device 10 according to the invention.
  • the exhaust aftertreatment device 10 in which at least some of the muffler chambers 19 to 24 have different depths t19 to t24 seen in the flow direction of the same. This can then be attenuated in the individual muffler chambers 19 to 24, which have different depths, different frequencies of the exhaust noise, so that a broadband attenuation of the exhaust noise is possible.
  • the different depths t19 to t24 are advantageously designed so that they correspond to a quarter of the wavelength to be attenuated ( ⁇ / 4). Due to the formation of different depths, different wavelengths can thus be used. be attenuated, whereby a broadband attenuation is possible.
  • the side walls and the end face of the exhaust aftertreatment element are arranged in parallel, so that a standing wave can form.
  • all muffler chambers 19 to 24 each have different depths t19 to t24.
  • Be provided sound absorbing material.
  • the exhaust gas purifying assemblies integrated in the exhaust gas purification chambers 13, 14 and 15 may be SCR catalysts, NOx storage catalysts, CH oxidation catalysts, CO oxidation catalysts, HCHO oxidation catalysts and / or particulate filters.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

Disclosed is an exhaust-gas after-treatment device (10) for an internal combustion engine, in particular for a ship's diesel internal combustion engine that is operated with heavy oil, said device comprising: a housing (11) through which exhaust gas flows; exhaust-gas purification chambers (13, 14, 15) formed in the housing (11), which chambers hold catalysts (16, 17, 18) and/or particulate filters in order to purify the exhaust gas; and muffler chambers (19, 20, 21, 22, 23, 24) formed in the housing (11), which chambers have a defined depth for muffling sound in the flow direction. The exhaust-gas purification chambers (13, 14, 15) and the muffler chambers (19, 20, 21, 22, 23, 24) are arranged spatially in series and parallel to one another on the flow side.

Description

Abgasnachbehandlungsvorrichtung  exhaust aftertreatment device
Die Erfindung betrifft eine Abgasnachbehandlungsvorrichtung. The invention relates to an exhaust aftertreatment device.
Aus der Praxis ist es bekannt, dass einer Brennkraftmaschine als Abgasnachbehandlungsbaugruppen sowohl Katalysatoren als auch Schalldämpfer nachgeordnet sein können. Die Katalysatoren dienen insbesondere der Entstickung und/oder Entschwefelung des Abgases und damit der Reduktion von Stickoxidemissionen sowie Schwefeloxidemissionen. Die Schalldämpfer dienen der Geräuschreduzierung und damit der Verminderung von Schallemissionen. Bei aus der Praxis bekannten Brennkraftmaschinen sind die Katalysatoren sowie Schalldämpfer stets als separate Baugruppen ausgeführt, wodurch sich ein hoher Bauraumbedarf ergibt. From practice it is known that an internal combustion engine can be arranged downstream of both catalytic converters and silencers as exhaust aftertreatment assemblies. The catalysts are used in particular for denitrification and / or desulfurization of the exhaust gas and thus the reduction of nitrogen oxide emissions and sulfur oxide emissions. The silencers are used for noise reduction and thus the reduction of noise emissions. In known from practice internal combustion engines, the catalysts and mufflers are always designed as separate modules, resulting in a high space requirement.
Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine neuartige Abgasnachbehandlungsvorrichtung zu schaffen. On this basis, the present invention has the object to provide a novel exhaust aftertreatment device.
Diese Aufgabe wird durch eine Abgasnachbehandlungsvorrichtung nach Anspruch 1 gelöst. Die erfindungsgemäße Abgasnachbehandlungsvorrichtung weist ein von Abgas durchströmten Gehäuse auf, wobei in dem Gehäuse Abgasreinigungskammern ausgebildet sind, die zur Abgasreinigung Katalysatoren und/oder Partikelfilter aufnehmen; wobei in dem Gehäuse Schalldämpferkammern ausgebildet sind, die zur Schalldämpfung in Durchströmungsrichtung eine definierte Tiefe aufweisen, und wobei die Abgasreinigungskammern und die Schalldämpferkammern räumlich seriell und ström ungsseitig parallel zueinander angeordnet sind. Mit der Erfindung wird vorgeschlagen, auf der einen Seite Abgasreinigungskomponenten wie Katalysatoren und/oder Partikelfilter und auf der anderen Seite Schalldämpfer in eine Abgasnachbehandlungsvorrichtung zu integrieren, wodurch der Bauraumbedarf gegenüber dem Stand der Technik reduziert werden kann. This object is achieved by an exhaust aftertreatment device according to claim 1. The exhaust gas aftertreatment device according to the invention has a housing through which exhaust gas flows, wherein exhaust gas cleaning chambers are formed in the housing and receive catalytic converters and / or particle filters for exhaust gas purification; wherein in the housing silencer chambers are formed, which have a defined depth for sound absorption in the flow direction, and wherein the exhaust gas purification chambers and the silencer chambers spatially serially and flow side are arranged parallel to each other. With the invention it is proposed to integrate on the one hand exhaust gas cleaning components such as catalysts and / or particulate filter and on the other side muffler in an exhaust aftertreatment device, whereby the space requirement compared to the prior art can be reduced.
Nach einer vorteilhaften Weiterbildung weisen zumindest einige Schalldämpferkammern unterschiedliche Tiefen auf. Dann, wenn zumindest einige Schalldämpferkammern unterschiedliche Tiefen aufweisen, können in den Schalldämpferkammern unterschiedliche Frequenzen gedämpft werden, sodass dann eine breitbandige Geräuschdämpfung möglich ist. According to an advantageous development, at least some muffler chambers have different depths. Then, if at least some muffler chambers have different depths, different frequencies can be damped in the muffler chambers, so that then a broadband noise attenuation is possible.
Nach einer vorteilhaften Weiterbildung sind die Abgasreinigungskammern und die Schalldämpferkammern derart strömungsseitig parallel zueinander angeordnet, dass ein Abgasstrom, welcher das Gehäuse durchströmt, in eine Anzahl N Abgas- teilströme aufteilbar ist, die jeweils mindestens eine für jeden der Abgasteilströme individuelle Abgasreinigungskammer und vorzugsweise mindestens eine für jeden der Abgasteilströme individuelle Schalldämpferkammer durchströmen, wobei die Abgasteilströme nach Durchströmung der Abgasreinigungskammern und Schalldämpferkammern zum Abgasstrom vereinigbar sind. Hiermit ist einerseits eine be- sonders effektive Abgasreinigung in den Katalysatoren und/oder Partikelfiltern und andererseits eine besonders effektive Geräuschreduzierung in den Schalldämpferkammern bei geringem Bauraumbedarf möglich. According to an advantageous development, the exhaust gas cleaning chambers and the muffler chambers are arranged on the flow side parallel to each other, that an exhaust gas stream, which flows through the housing, into a number N exhaust partial streams can be divided, each of which at least one individual exhaust gas for each of the partial exhaust gas streams and preferably at least one for each of the exhaust gas streams flow through individual muffler chamber, the exhaust gas streams can be unified after flowing through the exhaust gas purification chambers and muffler chambers to the exhaust stream. On the one hand a particularly effective exhaust gas purification in the catalysts and / or particulate filters and on the other hand a particularly effective noise reduction in the muffler chambers with a small space requirement is possible.
Vorzugsweise sind die Abgasreinigungskammern und die Schalldämpferkammern derart strömungsseitig parallel zueinander angeordnet, dass die oder jede individuelle Abgasreinigungskammer und Schalldämpferkammer eines i-ten Abgasteilstroms strömungstechnisch parallel zu der oder jeder individuellen Abgasreinigungskammer und Schalldämpferkammer eines (i+1 )-ten Abgasteilstroms geschaltet ist, wobei i=1 bis (N-1 ) ist. Hierdurch ist eine effektive Abgasreinigung und eine effektive Geräuschdämpfung bei gleichzeitiger Reduzierung des Bauraumbedarfs möglich. Vorzugsweise sind die Abgasreinigungskammern und die Schalldämpferkammern derart räumlich seriell zueinander angeordnet, dass die oder jede individuelle Abgasreinigungskammer und Schalldämpferkammer eines i-ten Abgasteilstroms räumlich vor der oder jeder individuellen Abgasreinigungskammer und Schalldämpferkammer eines (i+1)-ten Abgasteilstroms angeordnet ist, wobei i=1 bis (N- 1) ist. Auch dies ermöglicht eine effektive Abgasreinigung und eine effektive Geräuschdämpfung bei gleichzeitiger Reduzierung des Bauraumbedarfs. Preferably, the exhaust gas purifying chambers and the silencer chambers are arranged parallel to each other on the flow side so that the or each individual exhaust gas purifying chamber and silencer chamber of an ith partial exhaust gas flow is fluidically connected in parallel with the or each individual exhaust gas purifying chamber and silencer chamber of an (i + 1) -th partial exhaust gas stream, wherein i = 1 to (N-1). As a result, an effective exhaust purification and effective noise reduction while reducing the space requirement is possible. Preferably, the exhaust gas purifying chambers and the silencer chambers are arranged in series with each other so that the or each individual exhaust gas purifying chamber and silencer chamber of an ith partial exhaust gas stream is spatially located in front of the or each individual exhaust gas purifying chamber and silencer chamber of an (i + 1) -th partial exhaust gas stream, where i = 1 to (N-1). This also allows effective exhaust gas cleaning and effective noise reduction while reducing the space requirement.
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ausführungsbeispiele der Erfindung werden, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt: Preferred embodiments of the invention will become apparent from the dependent claims and the description below. Embodiments of the invention will be described, without being limited thereto, with reference to the drawings. Showing:
Fig. 1 : eine schematisierte Darstellung einer erfindungsgemäßen Abgasnachbehandlungsvorrichtung. Fig. 1: a schematic representation of an exhaust aftertreatment device according to the invention.
Die Erfindung betrifft eine Abgasnachbehandlungsvorrichtung für eine Brennkraftmaschine, insbesondere für eine mit Schweröl betriebene Schiffsdieselbrenn- kraftmaschine. The invention relates to an exhaust gas aftertreatment device for an internal combustion engine, in particular for a heavy fuel oil operated marine diesel engine.
Fig. 1 zeigt ein Ausführungsbeispiel einer erfindungsgemäßen Abgasnachbehandlungsvorrichtung 10, wobei die Abgasnachbehandlungsvorrichtung 10 ein von Abgas durchströmtes Gehäuse 11 aufweist. 1 shows an exemplary embodiment of an exhaust aftertreatment device 10 according to the invention, the exhaust aftertreatment device 10 having a housing 11 through which exhaust gas flows.
Das Gehäuse 11 verfügt über einen Einlass 12 sowie einen Auslass 26 für das das Gehäuse 11 der Abgasnachbehandlungsvorrichtung 10 durchströmende Abgas 25. In dem Gehäuse 10 sind Abgasreinigungskammern 13, 14, 15 ausgebildet, die zur Abgasreinigung des das Gehäuse 11 der Abgasnachbehandlungsvorrichtung 10 durchströmenden Abgases 25 Katalysatoren 16, 17, 18 und/oder Partikelfilter aufnehmen. Weiterhin sind in dem Gehäuse 11 der Abgasnachbehandlungsvorrich- tung 10 Schalldämpferkammern 19, 20, 21 , 22, 23, 24 ausgebildet, die zur Schalldämpfung in Durchströmungsrichtung eine definierte Tiefe t19, t20, t21 , t22, t23, t24 aufweisen. The housing 11 has an inlet 12 and an outlet 26 for the exhaust gas 25 flowing through the housing 11 of the exhaust aftertreatment device 10. In the housing 10, exhaust gas purification chambers 13, 14, 15 are formed, which receive the exhaust gas purification of the housing 11 of the exhaust gas aftertreatment device 10 by flowing exhaust gas 25 catalysts 16, 17, 18 and / or particulate filter. Furthermore, in the housing 11 of the exhaust gas aftertreatment device 10 muffler chambers 19, 20, 21, 22, 23, 24 are formed, which have a defined depth t19, t20, t21, t22, t23, t24 for sound damping in the direction of flow.
Die in das gemeinsame Gehäuse 11 der Abgasnachbehandlungsvorrichtung 10 gemeinsam integrierten bzw. in dem gemeinsamen Gehäuse 11 ausgebildeten Abgasreinigungskammern 13, 14, 15 und Schalldämpferkammern 19, 20, 21 , 22, 23, 24 sind einerseits räumlich seriell und andererseits strömungsseitig parallel zueinander angeordnet. The jointly in the common housing 11 of the exhaust aftertreatment device 10 integrated or formed in the common housing 11 exhaust gas cleaning chambers 13, 14, 15 and muffler chambers 19, 20, 21, 22, 23, 24 are on the one hand spatially serial and on the other hand flow side arranged parallel to each other.
Die Abgasreinigungskammern 13, 14, 15 und die Schalldämpferkammern 19 bis 24 sind dabei derart strömungsseitig parallel zueinander angeordnet, dass ein Abgasstrom 25, der in das Gehäuse 11 der Abgasnachbehandlungsvorrichtung 10 eintritt, in eine Anzahl N Abgasteilströme 25a, 25b und 25c aufteilbar ist, die gemäß Fig. 1 jeweils mindestens eine für jeden der Abgasteilströme 25a, 25b und 25c individuelle Abgasreinigungskammer 13, 14 bzw. 15 durchströmen. So durchströmt der Abgasteilstrom 25a die Abgasreinigungskammer 13, der Abgasteilstrom 25b die Abgasreinigungskammer 14 und der Abgasteilstrom 25c die Abgasreinigungskammer 15. The exhaust gas cleaning chambers 13, 14, 15 and the muffler chambers 19 to 24 are arranged parallel to each other on the flow side, that an exhaust gas stream 25, which enters the housing 11 of the exhaust aftertreatment device 10, into a number N partial exhaust gas streams 25 a, 25 b and 25 c is divisible, the According to FIG. 1, at least one individual exhaust gas purification chamber 13, 14 or 15 flows through each of the exhaust gas partial flows 25a, 25b and 25c. Thus, the exhaust partial flow 25a flows through the exhaust gas purification chamber 13, the exhaust gas partial flow 25b through the exhaust gas purification chamber 14 and the exhaust gas partial flow 25c through the exhaust gas purification chamber 15.
Ferner durchströmt vorzugsweise jeder der Abgasteilströme 25a, 25b und 25c mindestens eine für den jeweiligen Abgasteilstrom 25a, 25b und 25c individuelle Schalldämpferkammer, wobei der Abgasteilstrom 25a die individuelle Schalldämpferkammer 20, der Abgasteilstrom 25b die individuelle Schalldämpferkammer 22, der Abgasteilstrom 25c die individuelle Schalldämpferkammer 23 durch- strömt. Demnach sind alle Abgasreinigungskammern 13, 14 und 15 für die Abgasteilströme 25a, 25b und 25c als für die jeweiligen Abgasteilströme 25a, 25b und 25c individuelle Abgasreinigungskammern 13, 14, 15 immer nur von ausschließlich einem der Abgasteilströme 25a, 25b und 25c durchströmt ist. Further, preferably flows through each of the exhaust partial streams 25a, 25b and 25c at least one for the respective partial exhaust gas flow 25a, 25b and 25c individual muffler chamber, the partial exhaust gas flow 25a the individual muffler chamber 20, the exhaust partial flow 25b the individual muffler chamber 22, the exhaust partial flow 25c the individual muffler chamber 23 through - flows. Accordingly, all the exhaust gas purification chambers 13, 14 and 15 for the exhaust gas streams 25a, 25b and 25c as for the respective partial exhaust streams 25a, 25b and 25c individual exhaust gas purification chambers 13, 14, 15 is always only one of the exhaust gas streams 25a, 25b and 25c flows through.
Einige der Schalldämpferkammern 19 bis 24, nämlich die Schalldämpferkammern 20, 22 und 23 sind ebenfalls als für die Abgasteilströme 25a, 25b und 25c individuelle Schalldämpferkammern ausgebildet, sodass die Schalldämpferkammern 20, 22 und 23 immer nur ausschließlich von einem der Abgasteilströme 25a, 25b und 25c durchströmt sind. Andere Schalldämpferkammern 19, 21 , 24 sind hingegen als gemeinsame Schalldämpferkammern ausgebildet, die von mehreren der Abgasteilströme 25a, 25b und 25c gemeinsam durchströmt sind. So ist die Schalldämpferkammer 19 vom gesamten Abgasstrom 25 und demnach von allen drei Abgasteilströmen 25a, 25b und 25c durchströmt. Die Schalldämpferkammer 21 ist von den beiden Abgasteilströmen 25b und 25c durchströmt. Die Schalldämpferkammer 24 ist wiederum vom gesamten Abgasstrom 25 durchströmt. Some of the muffler chambers 19 to 24, namely the muffler chambers 20, 22 and 23 are also designed as individual muffler chambers for the exhaust gas streams 25a, 25b and 25c, so that the muffler chambers 20, 22 and 23 only ever from one of the exhaust gas streams 25a, 25b and 25c are flowed through. Other muffler chambers 19, 21, 24, however, are designed as common muffler chambers, which are flowed through jointly by a plurality of the exhaust gas partial flows 25a, 25b and 25c. Thus, the muffler chamber 19 is flowed through by the entire exhaust gas flow 25 and therefore by all three exhaust gas partial flows 25a, 25b and 25c. The muffler chamber 21 is flowed through by the two partial exhaust gas streams 25b and 25c. The muffler chamber 24 in turn flows through the entire exhaust gas flow 25.
Im gezeigten Ausführungsbeispiel ist N=3, der Abgasstrom 25 wird demnach in drei Abgasteilströme 25a, 25b und 25c aufgeteilt. Es ist jedoch selbstverständlich, dass der Abgasstrom 25 auch lediglich in zwei oder in mehr als drei Abgasteilströme aufgeteilt werden kann. In the illustrated embodiment, N = 3, the exhaust stream 25 is thus divided into three partial exhaust streams 25a, 25b and 25c. However, it goes without saying that the exhaust gas stream 25 can also be divided into only two or more than three partial exhaust streams.
Bei einer Anzahl N von Abgasteilströmen, in die der Abgasstrom 25 der Abgasnachbehandlungsvorrichtung 10 aufteilbar ist, sind die Abgasreinigungskammern 13 bis 15 und die Schalldämpferkammern 19 bis 24 derart ström ungsseitig parallel zueinander angeordnet, dass die oder jede individuelle Abgasreinigungskammer 13, 14, 15 sowie die oder jede individuelle Schalldämpferkammer 20, 22, 23 eines i-ten Abgasstroms (i = 1 bis N-1 ) strömungstechnisch parallel zu der oder jeder individuellen Abgasreinigungskammer und individuellen Schalldämpferkammer ei- nes (i+1)-ten Abgasteilstroms geschaltet ist. Die Abgasreinigungskammern 13 bis 15 und die Schalldämpferkammern 19 bis 24 sind darüber hinaus derart räumlich seriell zueinander angeordnet, dass die oder jede individuelle Abgasreinigungskammer 13, 14, 15 und die oder jede individuelle Schalldämpferkammer 20, 22, 23 eines i-ten Abgasteilstroms räumlich vor der o- der jeder individuellen Abgasreinigungskammer und individuellen Schalldämpferkammer eines (i+1 )-ten Abgasteilstroms angeordnet ist. In a number N of exhaust partial streams, in which the exhaust stream 25 of the exhaust aftertreatment device 10 can be divided, the exhaust gas purification chambers 13 to 15 and the muffler chambers 19 to 24 so flow side arranged parallel to each other that the or each individual emission control chamber 13, 14, 15 and or each individual silencer chamber 20, 22, 23 of an i-th exhaust stream (i = 1 to N-1) is fluidically connected in parallel with the or each individual exhaust gas purifying chamber and individual silencer chamber of one (i + 1) th partial exhaust gas stream. The exhaust gas cleaning chambers 13 to 15 and the muffler chambers 19 to 24 are also arranged spatially serially relative to each other so that the or each individual exhaust gas cleaning chamber 13, 14, 15 and the or each individual muffler chamber 20, 22, 23 of an i-th exhaust gas partial flow spatially before the o- of each individual exhaust gas purification chamber and individual silencer chamber of an (i + 1) -th partial exhaust gas stream is arranged.
Fig. 1 kann entnommen werden, dass sämtliche Abgasreinigungskammern 13 bis 15 sowie sämtliche Schalldämpferkammern 19 bis 24 in Durchströmungsrichtung des Gehäuses 10 gesehen räumlich seriell hintereinander angeordnet sind. It can be seen that all exhaust gas cleaning chambers 13 to 15 and all muffler chambers 19 to 24 seen in the flow direction of the housing 10 are arranged spatially serially one behind the other.
Auf die obige Art und Weise können mehrere Katalysatoren 16 bis 18 und/oder Partikelfilter in die mehreren Abgasreinigungskammern 13 bis 15 integriert werden, wobei in ein und dasselbe Gehäuse 11 ebenfalls mehrere Schalldämpfer- kammern 19 bis 24 integriert sind. Hierdurch kann in ein und derselben Abgasnachbehandlungsvorrichtung 10 sowohl eine effektive Abgasreinigung in den Abgasreinigungskammern 13 bis 15 als auch eine effektive Schalldämpfung in den Schalldämpferkammern 19 bis 24 gewährleistet werden, und zwar bei minimalem Bauraumbedarf der erfindungsgemäßen Abgasnachbehandlungsvorrichtung 10. In the above manner, a plurality of catalytic converters 16 to 18 and / or particulate filters can be integrated into the plurality of exhaust gas purification chambers 13 to 15, wherein a plurality of muffler chambers 19 to 24 are also integrated in one and the same housing 11. As a result, both effective exhaust gas purification in the exhaust gas purification chambers 13 to 15 and effective sound damping in the muffler chambers 19 to 24 can be ensured in one and the same exhaust aftertreatment device 10, specifically with minimal space requirement of the exhaust aftertreatment device 10 according to the invention.
Besonders bevorzugt ist eine Ausprägung der erfindungsgemäßen Abgasnachbehandlungsvorrichtung 10, in der zumindest einige der Schalldämpferkammern 19 bis 24 in Durchströmungsrichtung derselben gesehen unterschiedliche Tiefen t19 bis t24 aufweisen. Hiermit können dann in den einzelnen Schalldämpferkammern 19 bis 24, die unterschiedliche Tiefen aufweisen, unterschiedliche Frequenzen des Abgasgeräuschs gedämpft werden, sodass eine breitbandige Dämpfung der Abgasgeräusche möglich ist. Particularly preferred is an embodiment of the exhaust aftertreatment device 10 according to the invention, in which at least some of the muffler chambers 19 to 24 have different depths t19 to t24 seen in the flow direction of the same. This can then be attenuated in the individual muffler chambers 19 to 24, which have different depths, different frequencies of the exhaust noise, so that a broadband attenuation of the exhaust noise is possible.
Die unterschiedlichen Tiefen t19 bis t24 werden vorteilhaft so ausgeführt, dass sie ein Viertel der zu dämpfenden Wellenlänge (λ/4) entsprechen. Durch die Ausbildung unterschiedlicher Tiefenkönnen somit unterschiedliche Wellenlängen ge- dämpft werden, wodurch ein breitbandige Dämpfung möglich wird. Für die Ausbildung der λ/4-Schalldämpferwirkung sind die Seitenwände und die Stirnfläche des Abgasnachbehandlungselements parallel angeordnet, so dass sich eine stehende Welle ausbilden kann. The different depths t19 to t24 are advantageously designed so that they correspond to a quarter of the wavelength to be attenuated (λ / 4). Due to the formation of different depths, different wavelengths can thus be used. be attenuated, whereby a broadband attenuation is possible. For the formation of the λ / 4 silencer effect, the side walls and the end face of the exhaust aftertreatment element are arranged in parallel, so that a standing wave can form.
In einer Ausprägung der Erfindung weisen alle Schalldämpferkammern 19 bis 24 jeweils unterschiedliche Tiefen t19 bis t24 auf. In one embodiment of the invention, all muffler chambers 19 to 24 each have different depths t19 to t24.
Zur weiteren Optimierung der Geräuschdämpfung können Wände der Schall- dämpferkammern 19 bis 24 und/oder Wände des Gehäuses 11 und/oder nicht durchströmte Wände der Abgasreinigungskammern 13 bis 15 mit einem To further optimize the noise damping walls of the silencer chambers 19 to 24 and / or walls of the housing 11 and / or non-flow through walls of the exhaust gas purification chambers 13 to 15 with a
Schallabsorptionsmaterial versehen sein. Be provided sound absorbing material.
Bei den in die Abgasreinigungskammern 13, 14 und 15 integrierten Abgasreini- gungsbaugruppen kann es sich um SCR-Katalysatoren, um NOx- Speicherkatalysatoren, um CH -Oxidationskatalysatoren, um CO- Oxidationskatalysatoren, um HCHO-Oxidationskatalysatoren und/oder um Partikelfilter handeln. The exhaust gas purifying assemblies integrated in the exhaust gas purification chambers 13, 14 and 15 may be SCR catalysts, NOx storage catalysts, CH oxidation catalysts, CO oxidation catalysts, HCHO oxidation catalysts and / or particulate filters.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
10 Abgasnachbehandlungsvorrichtung10 exhaust aftertreatment device
11 Gehäuse 11 housing
12 Einlass  12 inlet
13 Abgasreinigungskammer  13 emission control chamber
14 Abgasreinigungskammer  14 emission control chamber
15 Abgasreinigungskammer  15 emission control chamber
16 Katalysator  16 catalyst
17 Katalysator  17 catalyst
18 Katalysator  18 catalyst
19 Schalldämpferkammer  19 silencer chamber
20 Schalldämpferkammer  20 silencer chamber
21 Schalldämpferkammer  21 silencer chamber
22 Schalldämpferkammer  22 silencer chamber
23 Schalldämpferkammer  23 silencer chamber
24 Schalldämpferkammer  24 silencer chamber
25 Abgas  25 exhaust
25a Abgasteilstrom  25a partial exhaust gas flow
25b Abgasteilstrom  25b partial exhaust gas flow
25c Abgasteilstrom  25c partial exhaust gas flow
26 Auslass  26 outlet

Claims

Ansprüche claims
Abgasnachbehandlungsvorrichtung (10) für eine Brennkraftmaschine, insbesondere für eine mit Schweröl betriebene Schiffsdieselbrennkraftmaschine, mit einem von Abgas durchströmten Gehäuse (11); Exhaust after-treatment device (10) for an internal combustion engine, in particular for a marine diesel engine operated with heavy oil, with a housing (11) through which exhaust gas flows;
mit in dem Gehäuse (11 ) ausgebildeten Abgasreinigungskammern (13, 14, 15), die zur Abgasreinigung Katalysatoren (16, 17, 18) und/oder Partikelfilter aufnehmen;  with in the housing (11) formed exhaust gas purification chambers (13, 14, 15), the catalysts for exhaust gas purification (16, 17, 18) and / or receive particulate filter;
mit in dem Gehäuse (11) ausgebildeten Schalldämpferkammern (19, 20, 21 , 22, 23, 24), die zur Schalldämpfung in Durchströmungsrichtung eine definierte Tiefe aufweisen;  with in the housing (11) formed muffler chambers (19, 20, 21, 22, 23, 24), which have a defined depth for sound absorption in the flow direction;
wobei die Abgasreinigungskammern (13, 14, 15) und die Schalldämpferkammern (19, 20, 21 , 22, 23, 24) räumlich seriell und strömungsseitig parallel zueinander angeordnet sind.  wherein the exhaust gas purification chambers (13, 14, 15) and the muffler chambers (19, 20, 21, 22, 23, 24) are arranged spatially serially and on the flow side parallel to each other.
Abgasnachbehandlungsvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die Abgasreinigungskammern (13, 14, 15) und die Schalldämpferkammern (19, 20, 21 , 22, 23, 24) derart strömungsseitig parallel zueinander angeordnet sind, dass ein Abgasstrom (25), welcher das Gehäuse (11) durchströmt, in eine Anzahl N Abgasteilströme (25a, 25b, 25c) aufteilbar ist, die jeweils mindestens eine für jeden der Abgasteilströme (25a, 25b, 25c) individuelle Abgasreinigungskammer (13, 14, 15) und vorzugsweise mindestens eine für jeden der Abgasteilströme (25a, 25b, 25c) individuelle Schalldämpferkammer (19, 20, 21 , 22, 23, 24) durchströmen, wobei die Abgasteilströme (25a, 25b, 25c) nach Durchströmung der Abgasreinigungskammern (13, 14, 15) und Schalldämpferkammern (19, 20, 21 , 22, 23, 24) zum Abgasstrom (25) vereinigbar sind. Abgasnachbehandlungsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass alle Abgasreinigungskammern (13, 14, 15) als für die Abgasteilströme (25a, 25b, 25c) individuelle Abgasreinigungskammern (13, 14, 15) ausgebildet sind, derart, dass jede der Abgasreinigungskammern (13, 14, 15) immer nur von ausschließlich einem der Abgasteilströme (25a, 25b, 25c) durchströmt ist. Exhaust gas aftertreatment device according to claim 1, characterized in that the exhaust gas cleaning chambers (13, 14, 15) and the muffler chambers (19, 20, 21, 22, 23, 24) are arranged on the flow side parallel to each other, that an exhaust gas stream (25) which the Housing (11) flows through, in a number N exhaust partial streams (25a, 25b, 25c) can be divided, each having at least one for each of the exhaust gas streams (25a, 25b, 25c) individual exhaust gas purification chamber (13, 14, 15) and preferably at least one for each of the exhaust gas partial flows (25a, 25b, 25c) through which individual exhaust gas chamber (19, 20, 21, 22, 23, 24), the exhaust partial streams (25a, 25b, 25c) after flow through the exhaust gas cleaning chambers (13, 14, 15) and muffler chambers (19, 20, 21, 22, 23, 24) to the exhaust stream (25) are unified. An exhaust aftertreatment device according to claim 2, characterized in that all the exhaust gas purification chambers (13, 14, 15) as for the exhaust partial streams (25a, 25b, 25c) individual exhaust gas purification chambers (13, 14, 15) are formed, such that each of the exhaust gas purification chambers (13, 14, 15), only one of the exhaust gas partial flows (25a, 25b, 25c) flows through it.
Abgasnachbehandlungsvorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass einige der Schalldämpferkammern (20, 22, 23) als für die Abgasteilströme (25a, 25b, 25c) individuelle Schalldämpferkammern ausgebildet sind, derart, dass die jeweilige Schalldämpferkammer immer nur von ausschließlich einem der Abgasteilströme (25a, 25b, 25c) durchströmt ist. Exhaust after-treatment device according to claim 2 or 3, characterized in that some of the muffler chambers (20, 22, 23) as for the exhaust partial streams (25a, 25b, 25c) are formed individual muffler chambers, such that the respective muffler chamber always only one of the exhaust partial streams (25a, 25b, 25c) is flowed through.
Abgasnachbehandlungsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass andere Schalldämpferkammern (19, 21 , 24) als für die Abgasteilströme (25a, 25b, 25c) gemeinsame Schalldämpferkammern ausgebildet sind, derart, dass die jeweilige Schalldämpferkammer von mehreren der Abgasteilströme (25a, 25b, 25c) gemeinsam durchströmt ist. Exhaust after-treatment device according to claim 4, characterized in that other muffler chambers (19, 21, 24) than for the exhaust partial streams (25a, 25b, 25c) common muffler chambers are formed such that the respective muffler chamber of several of the exhaust gas partial streams (25a, 25b, 25c ) is flowed through together.
Abgasnachbehandlungsvorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die Abgasreinigungskammern (13, 14, 15) und die Schalldämpferkammern (19, 20, 21 , 22, 23, 24) derart strömungsseitig parallel zueinander angeordnet sind, dass die oder jede individuelle Abgasreinigungskammer und Schalldämpferkammer eines i-ten Abgasteilstroms strömungstechnisch parallel zu der oder jeder individuellen Abgasreinigungskammer und Schalldämpferkammer eines (i+1)-ten Abgasteilstroms geschaltet ist, wobei i=1 bis (N-1) ist. Exhaust gas aftertreatment device according to one of claims 2 to 5, characterized in that the exhaust gas cleaning chambers (13, 14, 15) and the muffler chambers (19, 20, 21, 22, 23, 24) are arranged in such flow side parallel to each other that the or each individual Exhaust gas purifying chamber and silencer chamber of an i-th exhaust gas substream is fluidly connected in parallel with the or each individual exhaust gas purifying chamber and silencer chamber of an (i + 1) th partial exhaust gas flow, where i = 1 to (N-1).
7. Abgasnachbehandlungsvorrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass die Abgasreinigungskammern (13, 14, 15) und die Schalldämpferkammern (19, 20, 21 , 22, 23, 24) derart räumlich seriell zueinander angeordnet sind, dass die oder jede individuelle Abgasreinigungskammer und Schalldämpferkammer eines i-ten Abgasteilstroms räumlich vor der oder jeder individuellen Abgasreinigungskammer und Schalldämpferkammer eines (i+1)-ten Abgasteilstroms angeordnet ist, wobei i=1 bis (N-1) ist. 7. exhaust aftertreatment device according to one of claims 2 to 6, characterized in that the exhaust gas cleaning chambers (13, 14, 15) and the muffler chambers (19, 20, 21, 22, 23, 24) are arranged spatially in series such that the or each individual exhaust gas purifying chamber and muffler chamber of an ith exhaust gas partial stream is spatially located in front of the or each individual exhaust gas purifying chamber and muffler chamber of an (i + 1) -th partial exhaust gas stream, where i = 1 to (N-1).
8. Abgasnachbehandlungsvorrichtung nach einem der Ansprüche 1 bis 7, 8. Aftertreatment device according to one of claims 1 to 7,
dadurch gekennzeichnet, dass zumindest einige der Schalldämpferkammern (19, 20, 21 , 22, 23, 24) unterschiedliche Tiefen aufweisen.  characterized in that at least some of the muffler chambers (19, 20, 21, 22, 23, 24) have different depths.
9. Abgasnachbehandlungsvorrichtung nach einem der Ansprüche 1 bis 8, 9. Aftertreatment device according to one of claims 1 to 8,
dadurch gekennzeichnet, dass alle Schalldämpferkammern (19, 20, 21 , 22, 23, 24) unterschiedliche Tiefen aufweisen.  characterized in that all the muffler chambers (19, 20, 21, 22, 23, 24) have different depths.
10. Abgasnachbehandlungsvorrichtung nach einem der Ansprüche 1 bis 9, 10. Aftertreatment device according to one of claims 1 to 9,
dadurch gekennzeichnet, dass alle Abgasreinigungskammern (13, 14, 15) und alle Schalldämpferkammern (19, 20, 21 , 22, 23, 24) gemeinsam in dem Gehäuse (11) ausgebildet bzw. in dasselbe integriert sind.  characterized in that all the exhaust gas cleaning chambers (13, 14, 15) and all muffler chambers (19, 20, 21, 22, 23, 24) are formed together in the housing (11) or integrated in the same.
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JP2012202245A (en) * 2011-03-24 2012-10-22 Hitachi Koki Co Ltd Muffler and engine working machine including the same
DE102011015512A1 (en) * 2011-03-30 2012-10-04 Dif Die Ideenfabrik Gmbh Compact exhaust treatment unit with mixing zone and method for mixing an exhaust gas
JP2013221463A (en) * 2012-04-17 2013-10-28 Daiko Sangyo:Kk Denitration catalyst unit inserted type muffler

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JP2017509820A (en) 2017-04-06
DE102014007858A1 (en) 2015-11-26
EP3149302B1 (en) 2018-10-24
JP6491224B2 (en) 2019-03-27
CN106460600B (en) 2020-08-18
WO2015180809A1 (en) 2015-12-03
US20170268402A1 (en) 2017-09-21
KR20160128386A (en) 2016-11-07
DK3149302T3 (en) 2019-01-21
CN106460600A (en) 2017-02-22
US10190471B2 (en) 2019-01-29

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