DE102004043931A1 - Exhaust gas system especially for diesel engine has a carbon particle filter in a common housing with catalysers and with an intermediate mixing chamber - Google Patents
Exhaust gas system especially for diesel engine has a carbon particle filter in a common housing with catalysers and with an intermediate mixing chamber Download PDFInfo
- Publication number
- DE102004043931A1 DE102004043931A1 DE102004043931A DE102004043931A DE102004043931A1 DE 102004043931 A1 DE102004043931 A1 DE 102004043931A1 DE 102004043931 A DE102004043931 A DE 102004043931A DE 102004043931 A DE102004043931 A DE 102004043931A DE 102004043931 A1 DE102004043931 A1 DE 102004043931A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust
- exhaust gas
- mixing chamber
- treatment device
- particle filter
- 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
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
- 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
- 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
- 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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
-
- 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
- F01N2470/02—Tubes being perforated
-
- 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
-
- 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
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
-
- 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
Abstract
Description
Die Erfindung betrifft eine Abgasnachbehandlungseinrichtung für insbesondere Dieselmotoren mit einem Element zur Beseitigung von Rußpartikeln aus dem Abgas und einem dem Element nachgeschalteten SCR-Katalysator mit den Merkmalen des Oberbegriffs des Anspruchs 1.The The invention relates to an exhaust gas aftertreatment device for in particular Diesel engines with an element for removing soot particles from the exhaust gas and an element downstream SCR catalyst with the features of the preamble of claim 1.
Eine
Abgasnachbehandlungseinrichtung der gattungsgemäßen Bauart ist aus der
Von Nachteil ist, dass innerhalb der Mischkammer eine homogene Verteilung des Ammoniaks im Abgasstrom nicht möglich ist. Ferner ist eine gleichmäßige Beaufschlagung der Katalysatormodule mit Abgas infolge einer ungeordneten Abgasströmung in der Mischkammer nicht möglich.From Disadvantage is that within the mixing chamber, a homogeneous distribution of ammonia in the exhaust stream is not possible. Furthermore, a uniform admission the catalyst modules with exhaust gas due to a disordered flow of exhaust gas in the mixing chamber not possible.
Der Erfindung liegt die Aufgabe zugrunde, die gattungsgemäße Abgasnachbehandlungseinrichtung derart zu verbessern, dass neben einer vereinfachten Beseitigung der Rußpartikel eine optimale Durchmischung von zugeführtem Reduktionsmittel und Abgas in der Mischkammer und eine gleichmäßige Beaufschlagung der Katalysatormodule bei einer kompakten Bauweise der Einrichtung erzielt werden.Of the Invention is based on the object, the generic exhaust aftertreatment device to improve so that in addition to a simplified elimination the soot particles optimal mixing of supplied reducing agent and Exhaust gas in the mixing chamber and a uniform loading of the catalyst modules be achieved in a compact design of the device.
Die Aufgabe ist erfindungsgemäß dadurch gelöst, dass das Element ein Rußpartikelfilter ist, dass ferner die Mischkammer in einem endseitigen Abschnitt des Gehäuses angeordnet ist und von einer Stirnwand sowie einer innerhalb des Gehäuses angeordneten Zwischenwand begrenzt ist, und dass vom Abgasleitblech in der Mischkammer eine Reaktionsstrecke gebildet wird.The Task is inventively achieved in that the element is a soot particle filter in that further the mixing chamber is in an end-side section of the housing is arranged and from an end wall and one within the Housing arranged Intermediate wall is limited, and that of the exhaust baffle in the mixing chamber a reaction section is formed.
Die erfindungsgemäße Abgasnachbehandlungseinrichtung hat den Vorteil, dass die Rußpartikel auf einfache mechanische Weise aus dem Abgasstrom beseitigt werden. Ferner hat die in der Mischkammer durch das Abgasleitblech geschaffene Reaktionsstrecke den Vorteil einer geordneten Überströmung des Abgases aus dem Rußpartikelfilter in den SCR-Katalysator, wodurch eine gleichmäßige Beaufschlagung der einzelnen Katalysatormodule erzielt wird. Hinzu kommt, dass durch die geschaffene Reaktionsstrecke das in den Abgasstrom eingebrachte Reduktionsmittel sich gleichmäßig im Abgasstrom verteilen kann, wodurch die Reaktion im SCR-Katalysator begünstigt und eine bestmögliche Stickoxidreduzierung erreicht wird.The Exhaust gas treatment device according to the invention has the advantage that the soot particles on simple mechanical way can be eliminated from the exhaust stream. Furthermore, the created in the mixing chamber through the exhaust baffle Reaction path the advantage of an orderly flow over the exhaust gas from the soot particle filter into the SCR catalyst, ensuring uniform loading of each Catalyst modules is achieved. On top of that, through the created reaction path the introduced into the exhaust stream reducing agent is evenly in the exhaust stream which promotes the reaction in the SCR catalyst and a best possible nitrogen oxide reduction is reached.
Schließlich ist noch vorteilhaft, dass durch Anordnung der Mischkammer in einem endseitigen Abschnitt des Gehäuses die Unterbringung von Rußfilter und SCR-Katalysator im Gehäuse selbst nicht behindert wird und außerdem eine möglichst lange Reaktionsstrecke verwirklicht werden kann.Finally is still advantageous that by arranging the mixing chamber in one end portion of the housing the accommodation of soot filters and SCR catalyst in the housing itself is not hindered and also a possible long reaction distance can be realized.
Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous embodiments of the invention will become apparent from the Dependent claims.
Anhand eines in der Zeichnung dargestellten Ausführungsbeispieles wird die Erfindung nachfolgend näher erläutert.Based an embodiment shown in the drawing, the invention below explained.
Dabei zeigen:there demonstrate:
Die
abgebildete Abgasnachbehandlungseinrichtung
Innerhalb
des Gehäuses
Im
Rahmen der Erfindung sind auch andere Formen und Anordnungen von
Rußpartikelfilter
Im
Gehäuse
Die
den Dieselmotor verlassenden Abgase gelangen im Bereich der nicht
gezeigten Bodenwand in den Einströmungsabschnitt des Rußpartikelfilters
Gemäß der Erfindung
sind nun die Austrittsöffnungen
Zur
Reduzierung des Stickstoffes im SCR-Katalysator
Gemäß der Erfindung
wird dies dadurch erreicht, in dem das aus dem Rußpartikelfilter
Wie
Im
Einzelnen ist aus
Das
Abgasleitblech
Um
eine möglichst
gleichmäßige Strömungsgeschwindigkeit
in der Reaktionsstrecke
Ebenfalls
vorteilhaft ist es, wenn die Reaktionsstrecke im Bereich der Dosiereinrichtung
Gemäß
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004043931.1A DE102004043931B4 (en) | 2004-09-11 | 2004-09-11 | exhaust treatment device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004043931.1A DE102004043931B4 (en) | 2004-09-11 | 2004-09-11 | exhaust treatment device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004043931A1 true DE102004043931A1 (en) | 2006-03-30 |
DE102004043931B4 DE102004043931B4 (en) | 2014-08-21 |
Family
ID=36011327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004043931.1A Active DE102004043931B4 (en) | 2004-09-11 | 2004-09-11 | exhaust treatment device |
Country Status (1)
Country | Link |
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DE (1) | DE102004043931B4 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009014433A1 (en) * | 2009-03-26 | 2010-09-30 | J. Eberspächer GmbH & Co. KG | Exhaust gas treatment device |
DE102010020728A1 (en) * | 2010-05-17 | 2011-11-17 | Mtu Friedrichshafen Gmbh | aftertreatment system |
DE102011085941A1 (en) * | 2011-11-08 | 2013-05-08 | J. Eberspächer GmbH & Co. KG | Mixing- and evaporation device for use in selective catalytic reduction-catalytic converter for exhaust system of internal combustion engine, particularly of motor vehicle, has outer support body |
DE102013005206B3 (en) * | 2013-03-08 | 2014-06-26 | Eberspächer Exhaust Technology GmbH & Co. KG | Exhaust gas catalytic converter for exhaust gas purification system, has guide plate connected with tapered section along lengthways direction, where guide plate is provided with truncated cone peripheral surface |
DE102013104579A1 (en) | 2013-05-03 | 2014-11-06 | Eberspächer Exhaust Technology GmbH & Co. KG | INTAKE CHAMBER FOR A CATALYST OF AN EXHAUST CLEANING PLANT |
DE102016112336A1 (en) * | 2016-07-06 | 2018-01-11 | Man Diesel & Turbo Se | Exhaust after treatment system and internal combustion engine |
US11136910B2 (en) | 2017-06-06 | 2021-10-05 | Cummins Emission Solutions Inc. | Systems and methods for mixing exhaust gases and reductant in an aftertreatment system |
US11828214B2 (en) | 2020-05-08 | 2023-11-28 | Cummins Emission Solutions Inc. | Configurable aftertreatment systems including a housing |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9802157B2 (en) | 2015-08-05 | 2017-10-31 | Caterpillar Inc. | Diffuser plate for an exhaust aftertreatment module |
-
2004
- 2004-09-11 DE DE102004043931.1A patent/DE102004043931B4/en active Active
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009014433A1 (en) * | 2009-03-26 | 2010-09-30 | J. Eberspächer GmbH & Co. KG | Exhaust gas treatment device |
US8596044B2 (en) | 2009-03-26 | 2013-12-03 | Eberspächer Exhaust Technology GmbH & Co. KG | Exhaust gas-treating device |
US8945475B2 (en) | 2010-05-17 | 2015-02-03 | Mtu Friedrichshafen Gmbh | Exhaust-gas aftertreatment system |
DE102010020728A1 (en) * | 2010-05-17 | 2011-11-17 | Mtu Friedrichshafen Gmbh | aftertreatment system |
WO2011144303A1 (en) | 2010-05-17 | 2011-11-24 | Mtu Friedrichshafen Gmbh | Exhaust-gas aftertreatment system |
DE102011085941A1 (en) * | 2011-11-08 | 2013-05-08 | J. Eberspächer GmbH & Co. KG | Mixing- and evaporation device for use in selective catalytic reduction-catalytic converter for exhaust system of internal combustion engine, particularly of motor vehicle, has outer support body |
DE102011085941B4 (en) * | 2011-11-08 | 2014-06-05 | Eberspächer Exhaust Technology GmbH & Co. KG | Mixing and / or evaporation device |
DE102013005206B3 (en) * | 2013-03-08 | 2014-06-26 | Eberspächer Exhaust Technology GmbH & Co. KG | Exhaust gas catalytic converter for exhaust gas purification system, has guide plate connected with tapered section along lengthways direction, where guide plate is provided with truncated cone peripheral surface |
EP2775114A1 (en) | 2013-03-08 | 2014-09-10 | Eberspächer Exhaust Technology GmbH & Co. KG | Inflow chamber for a catalytic converter of an emission control system |
DE102013104579A1 (en) | 2013-05-03 | 2014-11-06 | Eberspächer Exhaust Technology GmbH & Co. KG | INTAKE CHAMBER FOR A CATALYST OF AN EXHAUST CLEANING PLANT |
DE102013104579B4 (en) * | 2013-05-03 | 2016-12-22 | Eberspächer Exhaust Technology GmbH & Co. KG | INTAKE CHAMBER FOR A CATALYST OF AN EXHAUST CLEANING PLANT |
DE102016112336A1 (en) * | 2016-07-06 | 2018-01-11 | Man Diesel & Turbo Se | Exhaust after treatment system and internal combustion engine |
US11136910B2 (en) | 2017-06-06 | 2021-10-05 | Cummins Emission Solutions Inc. | Systems and methods for mixing exhaust gases and reductant in an aftertreatment system |
US11542847B2 (en) | 2017-06-06 | 2023-01-03 | Cummins Emission Solutions Inc. | Systems and methods for mixing exhaust gases and reductant in an aftertreatment system |
US11828214B2 (en) | 2020-05-08 | 2023-11-28 | Cummins Emission Solutions Inc. | Configurable aftertreatment systems including a housing |
Also Published As
Publication number | Publication date |
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DE102004043931B4 (en) | 2014-08-21 |
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Legal Events
Date | Code | Title | Description |
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8127 | New person/name/address of the applicant |
Owner name: EBERSPAECHER UNNA GMBH & CO. KG, 59423 UNNA, DE |
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Owner name: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG, DE Free format text: FORMER OWNER: EBERSPAECHER UNNA GMBH & CO. KG, 59423 UNNA, DE Effective date: 20110817 |
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Representative=s name: DIEHL & PARTNER GBR, DE |
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Owner name: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG, DE Free format text: FORMER OWNER: J. EBERSPAECHER GMBH & CO. KG, 73730 ESSLINGEN, DE Effective date: 20130614 |
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Owner name: PUREM GMBH, DE Free format text: FORMER OWNER: EBERSPAECHER EXHAUST TECHNOLOGY GMBH & CO. KG, 66539 NEUNKIRCHEN, DE |
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Representative=s name: DIEHL & PARTNER PATENT- UND RECHTSANWALTSKANZL, DE |