DE102008042793A1 - Exhaust gas after-treatment arrangement for self-igniting internal-combustion engine, has exhaust gas conveying region comprising flexibly designed section i.e. exhaust flange, such that aqueous urea solution enters into section - Google Patents
Exhaust gas after-treatment arrangement for self-igniting internal-combustion engine, has exhaust gas conveying region comprising flexibly designed section i.e. exhaust flange, such that aqueous urea solution enters into section Download PDFInfo
- Publication number
- DE102008042793A1 DE102008042793A1 DE102008042793A DE102008042793A DE102008042793A1 DE 102008042793 A1 DE102008042793 A1 DE 102008042793A1 DE 102008042793 A DE102008042793 A DE 102008042793A DE 102008042793 A DE102008042793 A DE 102008042793A DE 102008042793 A1 DE102008042793 A1 DE 102008042793A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust
- section
- exhaust gas
- arrangement
- flange
- 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.)
- Withdrawn
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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
-
- 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]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
- B01D2258/012—Diesel engines and lean burn gasoline engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- 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
- F01N13/16—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of 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
- F01N2510/00—Surface coverings
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einer Anordnung zur Nachbehandlung des Abgases einer Brennkraftmaschine nach der Gattung des unabhängigen Anspruchs.The The invention is based on an arrangement for the aftertreatment of the exhaust gas an internal combustion engine according to the type of independent Claim.
Aus
der
Weiterhin
ist aus der
Die
Die
Die
Offenbarung der ErfindungDisclosure of the invention
Die erfindungsgemäße Anordnung zur Nachbehandlung des Abgases einer Brennkraftmaschine mit den kennzeichnenden Merkmalen des unabhängigen Anspruchs hat demgegenüber den Vorteil, dass etwaige Ablagerungen an der Innenseite des flexiblen Abschnitts bei Bewegung der Abgasanlage im Fahrbetrieb abplatzen und in die Abgasleitung des abgasführenden Bereichs fallen können. Als weiterer Vorteil ist anzusehen, dass die Bewegung der Abgasanlage, insbesondere der Abgasleitung, teilweise von der Dosiervorrichtung entkoppelt wird. Die flexible Verbindung wirkt in vorteilhafter Weise als Dämpfungselement zwischen Abgasanlage und Dosiervorrichtung bzw. Dosiermodul und kann starke mechanische Anregungen bzw. Stöße teilweise auffangen; hierdurch können die Festigkeitsanforderungen an das Dosiermodul herabgesetzt werden.The Inventive arrangement for aftertreatment the exhaust gas of an internal combustion engine with the characterizing features the independent claim has the other hand Advantage that any deposits on the inside of the flexible Chipping off section during movement of the exhaust system while driving and fall into the exhaust pipe of the exhaust gas carrying area can. Another advantage is that the movement the exhaust system, in particular the exhaust pipe, partially from the Dosing device is decoupled. The flexible connection works advantageously as a damping element between the exhaust system and dosing or dosing and can strong mechanical Partially absorb suggestions or shocks; hereby can meet the strength requirements of the dosing module be lowered.
Durch die in den abhängigen Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im unabhängigen Anspruch angegebenen Anordnung zur Abgasnachbehandlung möglich.By those listed in the dependent claims Measures are advantageous developments and improvements the arrangement specified in the independent claim for Exhaust gas aftertreatment possible.
Besonders vorteilhaft ist es, die Innenseite des flexiblen Abschnitts bzw. eine dem Abgas zugewandte Seite der Dosiervorrichtung mit einer Antihaft-Beschichtung zu versehen. Diese Beschichtung verringert zusätzlich die Haftung möglicher Ablagerungen auf dem flexiblen Abschnitt bzw. dem Abgasflansch bzw. der Dosiervorrichtung, so dass ihr Abplatzen im Fahrbetrieb gefördert wird.Especially It is advantageous, the inside of the flexible section or a side facing the exhaust gas of the metering device with a Non-stick coating to provide. This coating is reduced In addition, the liability of possible deposits on the flexible section or the exhaust flange or the metering device, so that their chipping while driving is promoted.
Weitere Vorteile ergeben sich durch die weiteren in den weiteren abhängigen Ansprüchen und in der Beschreibung genannten Merkmale.Further Benefits result from the others in the other dependent Claims and features mentioned in the description.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigenembodiments The invention are illustrated in the drawing and in the following description explained in more detail. Show it
Ausführungsformen der Erfindungembodiments the invention
Von
der Brennkraftmaschine kommend, wird das Abgas auf Höhe
des Abgasflanschs
Die
flexible Ausführung des Abgasflansches führt dazu,
dass etwaige Ablagerungen an dessen Innenseite bei Bewegung der
Abgasanlage im Fahrbetrieb abplatzen und in die Abgasleitung
In
einer alternativen Ausführungsform kann anstelle eines
Fächerrohrs auch ein Flexrohr, d. h. ein Verbindungsstück
aus einem Drahtgewebe, als Abgasflansch eingesetzt werden. In einer
weiteren alternativen Ausführungsform können die
Innenseite des Abgasflansches und/oder eine dem Abgas zugewandte
Seite
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006061730 [0002, 0014] - DE 102006061730 [0002, 0014]
- - EP 1327060 [0003] - EP 1327060 [0003]
- - DE 10131803 [0004] - DE 10131803 [0004]
- - DE 19745269 [0005] DE 19745269 [0005]
- - DE 102005032030 [0006] - DE 102005032030 [0006]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008042793A DE102008042793A1 (en) | 2008-10-13 | 2008-10-13 | Exhaust gas after-treatment arrangement for self-igniting internal-combustion engine, has exhaust gas conveying region comprising flexibly designed section i.e. exhaust flange, such that aqueous urea solution enters into section |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008042793A DE102008042793A1 (en) | 2008-10-13 | 2008-10-13 | Exhaust gas after-treatment arrangement for self-igniting internal-combustion engine, has exhaust gas conveying region comprising flexibly designed section i.e. exhaust flange, such that aqueous urea solution enters into section |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008042793A1 true DE102008042793A1 (en) | 2010-04-15 |
Family
ID=41820911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008042793A Withdrawn DE102008042793A1 (en) | 2008-10-13 | 2008-10-13 | Exhaust gas after-treatment arrangement for self-igniting internal-combustion engine, has exhaust gas conveying region comprising flexibly designed section i.e. exhaust flange, such that aqueous urea solution enters into section |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008042793A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013217197A1 (en) * | 2013-08-28 | 2015-03-05 | Witzenmann Gmbh | Metallic flexible conduit member and method of manufacturing such |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19745269A1 (en) | 1997-10-15 | 1999-04-22 | Klaus Leistritz | Automotive exhaust pipe manifold |
DE10131803A1 (en) | 2001-06-30 | 2003-05-28 | Bosch Gmbh Robert | Mixing device for an exhaust gas cleaning system |
EP1327060A1 (en) | 2000-10-04 | 2003-07-16 | Robert Bosch Gmbh | Device for producing a reducing agent/exhaust gas mixture and exhaust gas purification system |
DE102005032030A1 (en) | 2005-07-08 | 2007-01-11 | Webasto Ag | Automotive heating and exhaust gas passage |
DE102006061730A1 (en) | 2006-12-28 | 2008-07-03 | Robert Bosch Gmbh | Selective catalytic reduction injection device for use in internal combustion engine, has sleeve including elongated thin-walled connecting section connected indirectly and positively to axial end by flange |
-
2008
- 2008-10-13 DE DE102008042793A patent/DE102008042793A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19745269A1 (en) | 1997-10-15 | 1999-04-22 | Klaus Leistritz | Automotive exhaust pipe manifold |
EP1327060A1 (en) | 2000-10-04 | 2003-07-16 | Robert Bosch Gmbh | Device for producing a reducing agent/exhaust gas mixture and exhaust gas purification system |
DE10131803A1 (en) | 2001-06-30 | 2003-05-28 | Bosch Gmbh Robert | Mixing device for an exhaust gas cleaning system |
DE102005032030A1 (en) | 2005-07-08 | 2007-01-11 | Webasto Ag | Automotive heating and exhaust gas passage |
DE102006061730A1 (en) | 2006-12-28 | 2008-07-03 | Robert Bosch Gmbh | Selective catalytic reduction injection device for use in internal combustion engine, has sleeve including elongated thin-walled connecting section connected indirectly and positively to axial end by flange |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013217197A1 (en) * | 2013-08-28 | 2015-03-05 | Witzenmann Gmbh | Metallic flexible conduit member and method of manufacturing such |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |