EP0987408A3 - Method of operation of an internal combustion engine with sulphur accumulated exhaust gas purification components and internal combustion engine operated by using this method - Google Patents
Method of operation of an internal combustion engine with sulphur accumulated exhaust gas purification components and internal combustion engine operated by using this method Download PDFInfo
- Publication number
- EP0987408A3 EP0987408A3 EP99114565A EP99114565A EP0987408A3 EP 0987408 A3 EP0987408 A3 EP 0987408A3 EP 99114565 A EP99114565 A EP 99114565A EP 99114565 A EP99114565 A EP 99114565A EP 0987408 A3 EP0987408 A3 EP 0987408A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- exhaust gas
- gas purification
- sulfur
- 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
- F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
- F01N3/222—Control of additional air supply only, e.g. using by-passes or variable air pump drives using electric valves only
-
- 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
-
- 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
- F01N13/0093—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 of the same type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- 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
- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
-
- 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
- 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
- F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
- F01N3/0885—Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps
-
- 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
- F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
-
- 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
- F01N3/30—Arrangements for supply of additional air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
- F02D41/0275—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a NOx trap or adsorbent
- F02D41/028—Desulfurisation of NOx traps or adsorbent
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/04—Sulfur or sulfur oxides
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1612—SOx amount trapped in catalyst
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 Gas After Treatment (AREA)
Abstract
Die Erfindung bezieht sich auf ein Verfahren zum Betrieb einer Verbrennungsmotoranlage mit einem Verbrennungsmotor mit zugehörigem Abgasstrang, einer im Abgasstrang angeordneten, schwefelanreichernden Abgasreinigungskomponente und Mitteln zur Desulfatisierung dieser Abgasreinigungskomponente, wobei der Anlagenbetrieb zu vorgebbaren Zeitpunkten auf einen Desulfatisierungsmodus eingestellt wird, sowie auf eine dergestalt betreibbare Verbrennungsmotoranlage.The invention relates to a method of operation an internal combustion engine system with an internal combustion engine with associated exhaust line, one arranged in the exhaust line, sulfur enriching emission control component and Desulfating agent for this emission control component, wherein the plant operation at predetermined times is set to a desulfating mode, as well on an internal combustion engine system that can be operated in this way.
Erfindungsgemäß wird der Betrieb der Anlage jeweils im Anschluß an eine Kaltstartaktivierung des Verbrennungsmotors vor Übergang in einen Normalbetriebsmodus auf den Desulfatisierungsmodus eingestellt. Eine erfindungsgemäße Motoranlage beinhaltet je einen eigenen Sekundärluftzufuhrzweig für wenigstens zwei seriell geschaltete, schwefelanreichernde Abgasreinigungseinheiten und/oder je einen eigenen Sekundärluftzufuhrzweig für die schwefelanreichernde Abgasreinigungskomponente und eine stromabwärts davon angeordnete Oxidationskatalysatoreinheit.According to the operation of the system in each case in the connection to a cold start activation of the internal combustion engine before transitioning into a normal operating mode to the desulfating mode set. An engine system according to the invention each contains its own secondary air supply branch for at least two serially connected, sulfur-enriching Exhaust gas purification units and / or one each Secondary air supply branch for the sulfur-enriching emission control component and a downstream thereof Oxidation catalyst unit.
Verwendung beispielsweise in Automobilen. Use for example in automobiles.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19842625 | 1998-09-17 | ||
DE19842625A DE19842625C2 (en) | 1998-09-17 | 1998-09-17 | Method for operating an internal combustion engine system with sulfur enriching emission control component and thus operable internal combustion engine system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0987408A2 EP0987408A2 (en) | 2000-03-22 |
EP0987408A3 true EP0987408A3 (en) | 2003-01-08 |
EP0987408B1 EP0987408B1 (en) | 2004-09-08 |
Family
ID=7881296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99114565A Expired - Lifetime EP0987408B1 (en) | 1998-09-17 | 1999-07-24 | Method of operation of an internal combustion engine with sulphur accumulating exhaust gas purification components and an internal combustion engine operable therewith |
Country Status (3)
Country | Link |
---|---|
US (1) | US6293094B1 (en) |
EP (1) | EP0987408B1 (en) |
DE (2) | DE19842625C2 (en) |
Families Citing this family (36)
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DE19816276C2 (en) * | 1998-04-11 | 2000-05-18 | Audi Ag | Method and device for operating an internal combustion engine |
DE19845397C2 (en) * | 1998-10-02 | 2000-09-14 | Daimler Chrysler Ag | Method for desulfurizing a motor fuel on board a motor vehicle |
DE19922962C2 (en) * | 1999-05-19 | 2003-02-27 | Daimler Chrysler Ag | Method for the periodic desulfurization of a nitrogen oxide or sulfur oxide storage of an emission control system |
DE19960430B4 (en) * | 1999-12-15 | 2005-04-14 | Daimlerchrysler Ag | Emission control system with nitrogen oxide storage catalyst and sulfur oxide trap and operating method for this |
DE10025044C1 (en) * | 2000-05-20 | 2001-11-29 | Daimler Chrysler Ag | Vehicle internal combustion engine exhaust gas treatment device has nitrogen oxides absorber connected to oxidation catalyst, with auxiliary air supply connected between them, so that air is fed in during desulfurization |
EP1167710B1 (en) * | 2000-07-01 | 2005-04-06 | Volkswagen Aktiengesellschaft | Method and apparatus to increase the temperature of a catalyst |
DE10038724A1 (en) * | 2000-08-09 | 2002-02-21 | Porsche Ag | Method and device for the catalytic exhaust gas aftertreatment of the exhaust gas of an internal combustion engine |
DE10047809B4 (en) * | 2000-09-27 | 2014-01-09 | Volkswagen Ag | Method for operating control of a secondary air pump and emission control system with a secondary air pump |
US6758036B1 (en) * | 2000-10-27 | 2004-07-06 | Delphi Technologies, Inc. | Method for sulfur protection of NOx adsorber |
JP2002309928A (en) * | 2001-04-13 | 2002-10-23 | Yanmar Diesel Engine Co Ltd | Exhaust emission control device for internal combustion engine |
JP3757856B2 (en) * | 2001-12-07 | 2006-03-22 | トヨタ自動車株式会社 | Exhaust gas purification device |
ITBO20010762A1 (en) * | 2001-12-14 | 2003-06-16 | Magneti Marelli Powertrain Spa | METHOD FOR ESTIMATING SULFUR CONTENT IN THE FUEL OF AN INTERNAL COMBUSTION ENGINE |
DE10223595A1 (en) * | 2002-05-27 | 2003-12-11 | Volkswagen Ag | Method for operating a motor vehicle with a NOx storage catalytic converter |
JP2004068700A (en) | 2002-08-06 | 2004-03-04 | Toyota Motor Corp | Exhaust gas purification method |
US6832473B2 (en) | 2002-11-21 | 2004-12-21 | Delphi Technologies, Inc. | Method and system for regenerating NOx adsorbers and/or particulate filters |
GB0305415D0 (en) * | 2003-03-08 | 2003-04-16 | Johnson Matthey Plc | Exhaust system for lean burn IC engine including particulate filter and NOx absorbent |
US6779339B1 (en) | 2003-05-02 | 2004-08-24 | The United States Of America As Represented By The Environmental Protection Agency | Method for NOx adsorber desulfation in a multi-path exhaust system |
DE10326592A1 (en) * | 2003-06-13 | 2004-12-30 | Daimlerchrysler Ag | A method for the regeneration of a NOx storage catalyst in an exhaust system of a direct injection Otto engine |
DE102004002292B4 (en) * | 2004-01-16 | 2010-08-12 | Audi Ag | Catalytic converter and method for operating an exhaust gas catalytic device |
JP2005264735A (en) * | 2004-03-16 | 2005-09-29 | Yamaha Marine Co Ltd | Engine with supercharger |
US7767163B2 (en) * | 2004-04-20 | 2010-08-03 | Umicore Ag & Co. Kg | Exhaust treatment devices |
US7111451B2 (en) * | 2004-09-16 | 2006-09-26 | Delphi Technologies, Inc. | NOx adsorber diagnostics and automotive exhaust control system utilizing the same |
US7770386B2 (en) * | 2004-12-28 | 2010-08-10 | Caterpillar Inc | Filter desulfation system and method |
DE102005033395B4 (en) * | 2005-07-16 | 2007-06-06 | Umicore Ag & Co. Kg | Process for the regeneration of nitrogen oxide storage catalysts |
US7435275B2 (en) | 2005-08-11 | 2008-10-14 | Delphi Technologies, Inc. | System and method of heating an exhaust treatment device |
US20070084116A1 (en) * | 2005-10-13 | 2007-04-19 | Bayerische Motoren Werke Aktiengesellschaft | Reformer system having electrical heating devices |
FR2894286B1 (en) * | 2005-12-01 | 2010-10-29 | Peugeot Citroen Automobiles Sa | SYSTEM FOR DETERMINING SULFUR POISONING LEVEL OF INTEGRATED EMISSION MEANS IN AN EXHAUST LINE OF A MOTOR VEHICLE ENGINE. |
US8429896B2 (en) | 2006-04-18 | 2013-04-30 | Kohler Co. | Engine exhaust systems with secondary air injection systems |
JP4665914B2 (en) * | 2007-02-23 | 2011-04-06 | トヨタ自動車株式会社 | Exhaust gas purification device for internal combustion engine |
FR2921970B1 (en) * | 2007-10-03 | 2011-07-15 | Faurecia Sys Echappement | EXHAUST LINE OF A MOTOR VEHICLE EQUIPPED WITH A BIPABLE NITROGEN OXIDE TRAP. |
JP2011220158A (en) | 2010-04-07 | 2011-11-04 | Ud Trucks Corp | Exhaust emission control device for engine |
KR101619184B1 (en) * | 2010-11-03 | 2016-05-10 | 현대자동차 주식회사 | System for desulfurization of oxidation catalyst and method thereof |
JP5772985B2 (en) * | 2011-12-27 | 2015-09-02 | トヨタ自動車株式会社 | Exhaust control device for internal combustion engine |
DE102015219113A1 (en) * | 2015-10-02 | 2017-04-06 | Volkswagen Ag | Method and device for exhaust aftertreatment of an internal combustion engine |
DE102018203495A1 (en) * | 2018-03-08 | 2019-09-12 | Ford Global Technologies, Llc | Arrangement with a dual LNT catalyst and its use, motor vehicle and method for treating an exhaust gas flow |
US11428181B2 (en) | 2020-03-25 | 2022-08-30 | Cummins Inc. | Systems and methods for ultra-low NOx cold start warmup control and fault diagnosis |
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US3943709A (en) * | 1972-01-12 | 1976-03-16 | Exxon Research & Engineering Co. | Substoichiometric air addition to first stage of dual catalyst system |
JPH09291814A (en) * | 1996-04-26 | 1997-11-11 | Mitsubishi Motors Corp | Exhaust emission control device for engine |
WO1998027322A1 (en) * | 1996-12-18 | 1998-06-25 | Ford Motor Company Limited | METHOD OF DE-SULPHURATING ENGINE EXHAUST NOx TRAPS |
EP1007826A1 (en) * | 1997-08-28 | 2000-06-14 | Johnson Matthey Public Limited Company | Improvements relating to catalysts |
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JP3645704B2 (en) * | 1997-03-04 | 2005-05-11 | トヨタ自動車株式会社 | Exhaust gas purification device for internal combustion engine |
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DE19747222C1 (en) * | 1997-10-25 | 1999-03-04 | Daimler Benz Ag | Lean burn internal combustion engine with periodic nitrogen oxide(s) storage catalyst regeneration control |
-
1998
- 1998-09-17 DE DE19842625A patent/DE19842625C2/en not_active Expired - Fee Related
-
1999
- 1999-07-24 DE DE59910440T patent/DE59910440D1/en not_active Expired - Fee Related
- 1999-07-24 EP EP99114565A patent/EP0987408B1/en not_active Expired - Lifetime
- 1999-09-17 US US09/397,729 patent/US6293094B1/en not_active Expired - Lifetime
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US3943709A (en) * | 1972-01-12 | 1976-03-16 | Exxon Research & Engineering Co. | Substoichiometric air addition to first stage of dual catalyst system |
JPH09291814A (en) * | 1996-04-26 | 1997-11-11 | Mitsubishi Motors Corp | Exhaust emission control device for engine |
WO1998027322A1 (en) * | 1996-12-18 | 1998-06-25 | Ford Motor Company Limited | METHOD OF DE-SULPHURATING ENGINE EXHAUST NOx TRAPS |
EP1007826A1 (en) * | 1997-08-28 | 2000-06-14 | Johnson Matthey Public Limited Company | Improvements relating to catalysts |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27) * |
Also Published As
Publication number | Publication date |
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EP0987408A2 (en) | 2000-03-22 |
DE19842625C2 (en) | 2003-03-27 |
DE19842625A1 (en) | 2000-03-30 |
EP0987408B1 (en) | 2004-09-08 |
US6293094B1 (en) | 2001-09-25 |
DE59910440D1 (en) | 2004-10-14 |
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