DE102006040876A1 - Exhaust line for an internal combustion engine - Google Patents
Exhaust line for an internal combustion engine Download PDFInfo
- Publication number
- DE102006040876A1 DE102006040876A1 DE102006040876A DE102006040876A DE102006040876A1 DE 102006040876 A1 DE102006040876 A1 DE 102006040876A1 DE 102006040876 A DE102006040876 A DE 102006040876A DE 102006040876 A DE102006040876 A DE 102006040876A DE 102006040876 A1 DE102006040876 A1 DE 102006040876A1
- Authority
- DE
- Germany
- Prior art keywords
- line
- exhaust
- valves
- bypass line
- bypass
- 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- Withdrawn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
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
- F01N3/0878—Bypassing absorbents or adsorbents
-
- 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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0842—Nitrogen oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/14—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system
- F02M26/15—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the exhaust system in relation to engine exhaust purifying apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/34—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with compressors, turbines or the like in the recirculation passage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
- F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
-
- 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
- F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
- F01N2410/02—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device in case of high temperature, e.g. overheating of catalytic reactor
-
- 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
- F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
- F01N2550/06—By-pass systems
- F01N2550/10—By-pass systems of catalytic converters
Abstract
Ein Abgasstrang für eine Brennkraftmaschine weist eine durch eine Abgasbehandlungsvorrichtung (22) führende Leitung (24) und eine die Abgasbehandlungsvorrichtung (22) umgehende Bypassleitung (26), wobei in der Bypassleitung (26) oder der Leitung (24) zwei Ventile (34, 36) hintereinander angeordnet sind, mittels derer die Bypassleitung oder die Leitung verschließbar ist, und weist weiter eine Rückführleitung (50) auf, die zwischen den Ventilen (34, 36) von der Bypassleitung (26) oder der Leitung (24) ausgeht und an eine Unterdruckquelle (52) zum Absaugen von zwischen den Ventilen befindlichem Gas anschließbar ist.An exhaust line for an internal combustion engine has a line (24) leading through an exhaust gas treatment device (22) and a bypass line (26) bypassing the exhaust treatment device (22), two valves (34, 36) being provided in the bypass line (26) or the line (24) ) are arranged one behind the other, by means of which the bypass line or the conduit is closable, and further comprises a return line (50) which extends between the valves (34, 36) from the bypass line (26) or the line (24) and to a A vacuum source (52) is connectable for sucking gas located between the valves.
Description
Die Erfindung betrifft einen Abgasstrang für eine Brennkraftmaschine gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to an exhaust system for an internal combustion engine according to the preamble of Claim 1.
Ein
gattungsgemäßer Abgasstrang
ist beispielsweise aus der
In Abgassträngen von Brennkraftmaschinen angeordnete Ventile sind wegen der hohen auftretenden Temperaturen, im Abgas befindlichen Rückstände und so weiter nur mit erheblichem Aufwand derart baubar, dass sie im geschlossenen Zustand die jeweils abzutrennende Leitung vollständig dicht abtrennen. Somit kann es in Folge von Undichtigkeiten bei dem bekannten Abgasstrang auch bei Abtrennung der durch den Katalysator führenden Leitung in Folge von Undichtigkeiten zu Schädigungen des Katalysators kommen, wenn das Fahrzeug nicht mit bleifreiem Kraftstoff betrieben wird.In exhaust lines arranged by internal combustion engines valves are because of the high occurring temperatures, residues in the exhaust gas and so on only with considerable effort buildable in such a way that they in the closed state completely separated each line to be separated split off. Thus, as a result of leaks in the known Exhaust line even when separating the leading through the catalyst Lead due to leakage to damage the catalyst, if the vehicle is not operated with unleaded fuel.
Der Erfindung liegt die Aufgabe zugrunde, einen Abgasstrang der im Oberbegriff des Anspruchs 1 beschriebenen Art derart weiterzubilden, dass zumindest die durch die Abgasnachbehandlungsvorrichtung führende Leitung oder die Bypassleitung vollständig vom Rest des Abgasstrangs abgetrennt werden kann.Of the Invention is based on the object, an exhaust system in the preamble of claim 1 described in such a way that at least the leading through the exhaust aftertreatment device line or the bypass line completely from Rest of the exhaust line can be separated.
Diese Aufgabe wird mit dem Merkmal des Anspruchs 1 gelöst.These The object is achieved with the feature of claim 1.
Dadurch, dass zwischen den Ventilen eine an einer Unterdruckquelle angeschlossene Rückführleitung von der jeweils abzutrennenden Leitung ausgeht, können infolge von Undichtigkeiten der Ventile in die abzutrennende Leitung gelangende Gase abgesaugt werden, so dass eine vollständige Dichtheit gegeben ist.Thereby, that between the valves connected to a vacuum source Return line emanating from the respective line to be separated, may result from leaks of the valves in the line to be separated passing gases be sucked, so that a complete tightness is given.
Die Unteransprüche sind auf vorteilhafte Ausführungsformen und Weiterbildungen des erfindungsgemäßen Abgasstrangs gerichtet.The under claims are on advantageous embodiments and further developments of the exhaust line according to the invention directed.
Die Erfindung wird im Folgenden beispielsweise und mit weiteren Einzelheiten anhand einer schematischen Zeichnung erläutert, die eine mehrzylindrige Brennkraftmaschine mit zugehörigem Abgasstrang zeigt.The The invention will be described below by way of example and with further details explained with reference to a schematic drawing, which is a multi-cylinder Internal combustion engine with associated Exhaust line shows.
Gemäß der einzigen
Figur sind Abgasleitungen je dreier Zylinder einer sechszylindrigen
Brennkraftmaschine
In
der Verzweigung des Sammelrohrs
Strömungsoberhalb
der Katalysatoren
Strömungsabwärts des
Katalysators
Strömungsoberhalb
des Stickoxidspeicherkatalysators
Von
der Bypassleitung
Die
Unterdruckquelle
Die
Ausgangssignale der Sensoren werden Eingängen
Ein
typischer Anwendungsfall der geschilderten Anordnung liegt darin,
dass der Speicherkatalysator
Wenn
der Stickoxidspeicherkatalysator
Die
beschriebene Anordnung kann in vielfältiger Weise abgeändert werden.
Beispielsweise können
für bestimmte
Anwendungen eines der beiden oder beide Dreiwegeventile
Wesentlich an allen Ausführungen der Erfindung ist, dass bei erwünschter vollständiger Sperrung einer Leitung mittels die Leitung absperrender Ventile in Folge von Undichtigkeiten der Ventile in die Leitung gelangendes Gas absaugbar ist, so dass trotz Undichtigkeit der Ventile eine vollständige Abtrennung erzielt wird.Essential on all versions The invention is that when desired complete Blocking of a line by means of the line shut-off valves as a result of leaks in the valves entering the pipe Gas is sucked, so that despite leakage of the valves a full Separation is achieved.
Die Anordnung kann dadurch erweitert und hinsichtlich potentieller Undichtigkeiten noch sicherer gemacht werden, dass solche Stellen, wie Lagerstellen der Ventile oder andere Öffnungen, die mit unbehandeltem oder nicht vollständig behandeltem Abgas beaufschlagt sind und dessen Entweichen ermöglichen, ebenfalls an eine unterdruckbeaufschlagte Rückführleitung angeschlossen sind.The Arrangement can thereby be extended and with regard to potential leaks be made even safer, that such bodies, such as bearings the valves or other openings, which is treated with untreated or not completely treated exhaust gas are and allow its escape, are also connected to a vacuum-pressurized return line.
Eine
weitere zweckmäßige Weiterbildung des
erfindungsgemäßen Abgasstrangs
besteht darin, dass die Rückführleitung
Die
Ansteuerung der Ventile
Die Abgasnachbehandlungseinrichtung kann an Stelle des Stickoxidspeicherkatalysators auch jedwelcher anderer Art sein, beispielsweise eine Einrichtung zur selektiven katalytischen Reduktion (SCR), ein 3-Wegkatalystator usw., wobei unterschiedliche Behandlungssysteme miteinander kombiniert werden können.The Exhaust after-treatment device may also replace the nitrogen oxide storage catalyst of any other kind, for example a device for Selective Catalytic Reduction (SCR), a 3-way catalyst etc., where different treatment systems combined can be.
- 1010
- BrennkraftmaschineInternal combustion engine
- 1212
- AbgassammelrohrExhaust manifold
- 1414
- AbgassammelrohrExhaust manifold
- 1616
- DreiwegekatalysatorThree-way catalytic converter
- 1818
- DreiwegekatalysatorThree-way catalytic converter
- 2020
- Sammelrohrmanifold
- 2222
- StickoxidspeicherkatalysatorNitrogen oxide storage catalyst
- 2424
- Leitungmanagement
- 2626
- Leitungmanagement
- 2828
- Leitungmanagement
- 3030
- Schalldämpfersilencer
- 3232
- Schalldämpfersilencer
- 3434
- VentilValve
- 3636
- VentilValve
- 4040
- Lambda-SondeLambda probe
- 4242
- Lambda-SprungsondeLambda jump probe
- 4444
- Temperatursensortemperature sensor
- 4646
- Stickoxidsensornitrogen oxide sensor
- 4848
- Stickoxidsensornitrogen oxide sensor
- 5050
- RückführleitungReturn line
- 5252
- UnterdruckquelleVacuum source
- 5454
- Absperrventilshut-off valve
- 5656
- Eingängeinputs
- 5858
- Elektronisches Steuergerätelectronic control unit
- 6060
- Ausgängeoutputs
- 6262
- Sensorsensor
Claims (7)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006040876A DE102006040876A1 (en) | 2006-08-31 | 2006-08-31 | Exhaust line for an internal combustion engine |
EP07785957A EP2057361B1 (en) | 2006-08-31 | 2007-07-10 | Exhaust gas line for an internal combustion engine |
PCT/EP2007/006089 WO2008025406A1 (en) | 2006-08-31 | 2007-07-10 | Exhaust-gas section for an internal combustion engine |
DE502007004152T DE502007004152D1 (en) | 2006-08-31 | 2007-07-10 | EXHAUST GAS FOR AN INTERNAL COMBUSTION ENGINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006040876A DE102006040876A1 (en) | 2006-08-31 | 2006-08-31 | Exhaust line for an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006040876A1 true DE102006040876A1 (en) | 2008-03-06 |
Family
ID=38543754
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006040876A Withdrawn DE102006040876A1 (en) | 2006-08-31 | 2006-08-31 | Exhaust line for an internal combustion engine |
DE502007004152T Active DE502007004152D1 (en) | 2006-08-31 | 2007-07-10 | EXHAUST GAS FOR AN INTERNAL COMBUSTION ENGINE |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE502007004152T Active DE502007004152D1 (en) | 2006-08-31 | 2007-07-10 | EXHAUST GAS FOR AN INTERNAL COMBUSTION ENGINE |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2057361B1 (en) |
DE (2) | DE102006040876A1 (en) |
WO (1) | WO2008025406A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008035553A1 (en) | 2008-07-30 | 2010-02-04 | Bayerische Motoren Werke Aktiengesellschaft | Internal combustion engine has exhaust gas reconducting mechanism with four valves, where exhaust gas turbocharger is provided with compressor arranged in intake section |
EP2151570A1 (en) | 2008-08-07 | 2010-02-10 | Bayerische Motoren Werke | Exhaust gas recirculation system for a combustion engine |
DE102009037285A1 (en) * | 2009-08-12 | 2011-02-17 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Exhaust system for internal combustion engine, has exhaust pipe, exhaust gas purification unit, another exhaust gas purification unit, bypass line for turning latter exhaust gas purification unit and exhaust gas return line |
WO2014170090A1 (en) * | 2013-04-18 | 2014-10-23 | Avl List Gmbh | Large diesel internal combustion engine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017192245A1 (en) * | 2016-05-04 | 2017-11-09 | Tula Technology Inc. | Decel fuel cut-off |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6424118A (en) * | 1987-07-15 | 1989-01-26 | Yanmar Diesel Engine Co | Internal-combustion engine with exhaust turbo charger |
JPH06101461A (en) * | 1992-09-18 | 1994-04-12 | Nissan Motor Co Ltd | Exhaust gas purifying device for internal combustion engine |
DE4319294C1 (en) * | 1993-06-10 | 1994-05-19 | Daimler Benz Ag | Denitrification of engine exhaust gas without adding reducing agent - by adsorption in adsorber in exhaust pipe, periodic desorption with hot gas and recirculation to combustion in suction air supply |
US5544482A (en) * | 1994-03-18 | 1996-08-13 | Honda Giken Kogyo Kabushiki Kaisha | Exhaust gas-purifying system for internal combustion engines |
EP0913561A2 (en) * | 1997-10-31 | 1999-05-06 | Valeo Thermique Moteur S.A. | Exhaust and recirculation line of the exhaust gas of an internal combustion engine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3446247A1 (en) * | 1984-12-19 | 1986-06-05 | Anton 4440 Rheine Fransbach | Two-way exhaust system for motor vehicles |
DE102005017863A1 (en) * | 2005-04-19 | 2006-11-02 | Dr.Ing.H.C. F. Porsche Ag | Exhaust gas discharge system for an internal combustion engine and shut-off valve for an exhaust gas discharge system |
-
2006
- 2006-08-31 DE DE102006040876A patent/DE102006040876A1/en not_active Withdrawn
-
2007
- 2007-07-10 EP EP07785957A patent/EP2057361B1/en active Active
- 2007-07-10 DE DE502007004152T patent/DE502007004152D1/en active Active
- 2007-07-10 WO PCT/EP2007/006089 patent/WO2008025406A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6424118A (en) * | 1987-07-15 | 1989-01-26 | Yanmar Diesel Engine Co | Internal-combustion engine with exhaust turbo charger |
JPH06101461A (en) * | 1992-09-18 | 1994-04-12 | Nissan Motor Co Ltd | Exhaust gas purifying device for internal combustion engine |
DE4319294C1 (en) * | 1993-06-10 | 1994-05-19 | Daimler Benz Ag | Denitrification of engine exhaust gas without adding reducing agent - by adsorption in adsorber in exhaust pipe, periodic desorption with hot gas and recirculation to combustion in suction air supply |
US5544482A (en) * | 1994-03-18 | 1996-08-13 | Honda Giken Kogyo Kabushiki Kaisha | Exhaust gas-purifying system for internal combustion engines |
EP0913561A2 (en) * | 1997-10-31 | 1999-05-06 | Valeo Thermique Moteur S.A. | Exhaust and recirculation line of the exhaust gas of an internal combustion engine |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008035553A1 (en) | 2008-07-30 | 2010-02-04 | Bayerische Motoren Werke Aktiengesellschaft | Internal combustion engine has exhaust gas reconducting mechanism with four valves, where exhaust gas turbocharger is provided with compressor arranged in intake section |
DE102008035553B4 (en) * | 2008-07-30 | 2017-06-08 | Bayerische Motoren Werke Aktiengesellschaft | Internal combustion engine with an exhaust gas recirculation device |
EP2151570A1 (en) | 2008-08-07 | 2010-02-10 | Bayerische Motoren Werke | Exhaust gas recirculation system for a combustion engine |
DE102008036896A1 (en) | 2008-08-07 | 2010-02-11 | Bayerische Motoren Werke Aktiengesellschaft | Exhaust gas recirculation system for an internal combustion engine |
DE102009037285A1 (en) * | 2009-08-12 | 2011-02-17 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Exhaust system for internal combustion engine, has exhaust pipe, exhaust gas purification unit, another exhaust gas purification unit, bypass line for turning latter exhaust gas purification unit and exhaust gas return line |
WO2014170090A1 (en) * | 2013-04-18 | 2014-10-23 | Avl List Gmbh | Large diesel internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
WO2008025406A1 (en) | 2008-03-06 |
DE502007004152D1 (en) | 2010-07-29 |
EP2057361A1 (en) | 2009-05-13 |
EP2057361B1 (en) | 2010-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120301 |