JP4867675B2 - 還元剤供給装置 - Google Patents
還元剤供給装置 Download PDFInfo
- Publication number
- JP4867675B2 JP4867675B2 JP2007012440A JP2007012440A JP4867675B2 JP 4867675 B2 JP4867675 B2 JP 4867675B2 JP 2007012440 A JP2007012440 A JP 2007012440A JP 2007012440 A JP2007012440 A JP 2007012440A JP 4867675 B2 JP4867675 B2 JP 4867675B2
- Authority
- JP
- Japan
- Prior art keywords
- reducing agent
- exhaust gas
- addition valve
- flow rate
- pressure
- 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.)
- Expired - Fee Related
Links
Images
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]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
-
- 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
- F01N2610/08—Adding substances to exhaust gases with prior mixing of the substances with a gas, e.g. air
-
- 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
- F01N2610/146—Control thereof, e.g. control of injectors or injection valves
-
- 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
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007012440A JP4867675B2 (ja) | 2007-01-23 | 2007-01-23 | 還元剤供給装置 |
DE102008000092.2A DE102008000092B4 (de) | 2007-01-23 | 2008-01-18 | Reduktionsmittelzufuhrsystem |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007012440A JP4867675B2 (ja) | 2007-01-23 | 2007-01-23 | 還元剤供給装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008180101A JP2008180101A (ja) | 2008-08-07 |
JP4867675B2 true JP4867675B2 (ja) | 2012-02-01 |
Family
ID=39587475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007012440A Expired - Fee Related JP4867675B2 (ja) | 2007-01-23 | 2007-01-23 | 還元剤供給装置 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4867675B2 (de) |
DE (1) | DE102008000092B4 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5503277B2 (ja) | 2009-12-15 | 2014-05-28 | ボッシュ株式会社 | 還元剤噴射弁の制御装置 |
CN102472138A (zh) * | 2010-04-02 | 2012-05-23 | 丰田自动车株式会社 | 内燃机的排气装置 |
JP2011236867A (ja) * | 2010-05-13 | 2011-11-24 | Hino Motors Ltd | 燃料噴霧ノズル |
JP5904274B2 (ja) * | 2012-04-09 | 2016-04-13 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP6149892B2 (ja) * | 2015-04-15 | 2017-06-21 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP6406134B2 (ja) * | 2015-06-05 | 2018-10-17 | 株式会社デンソー | 還元剤噴射システム |
US10301996B2 (en) | 2015-10-08 | 2019-05-28 | Cummins Emission Solutions Inc. | System and method for varying reductant delivery pressure to aftertreatment systems |
JP6477623B2 (ja) * | 2016-07-19 | 2019-03-06 | トヨタ自動車株式会社 | 内燃機関の排気浄化システム |
US10018091B2 (en) | 2016-11-17 | 2018-07-10 | Ford Global Technologies, Llc | Exhaust system |
DE102018203757A1 (de) * | 2017-04-25 | 2018-10-25 | Robert Bosch Gmbh | Verfahren zum Betreiben eines SCR-Systems mit zumindest zwei Dosierventilen |
WO2020121607A1 (ja) * | 2018-12-10 | 2020-06-18 | 日本碍子株式会社 | 還元剤噴射装置、排ガス処理装置及び排ガス処理方法 |
DE102020212961B4 (de) * | 2020-10-14 | 2024-02-29 | Vitesco Technologies GmbH | Verfahren zum Betreiben einer Fördervorrichtung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3536733B2 (ja) * | 1999-08-20 | 2004-06-14 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP3557964B2 (ja) * | 1999-09-29 | 2004-08-25 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP2002038941A (ja) * | 2000-07-24 | 2002-02-06 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
JP3757856B2 (ja) * | 2001-12-07 | 2006-03-22 | トヨタ自動車株式会社 | 排気ガス浄化装置 |
JP2005105949A (ja) * | 2003-09-30 | 2005-04-21 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
DE102004018221A1 (de) * | 2004-04-15 | 2005-11-10 | Robert Bosch Gmbh | Verfahren zum Einbringen eines Reagenzmittels in einen Abgaskanal einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens |
JP2005307769A (ja) * | 2004-04-19 | 2005-11-04 | Hino Motors Ltd | 排気浄化装置 |
JP3715985B1 (ja) * | 2004-10-29 | 2005-11-16 | 日産ディーゼル工業株式会社 | 液体還元剤噴射ノズル構造 |
JP4708320B2 (ja) * | 2006-12-01 | 2011-06-22 | ボッシュ株式会社 | Nox浄化装置 |
-
2007
- 2007-01-23 JP JP2007012440A patent/JP4867675B2/ja not_active Expired - Fee Related
-
2008
- 2008-01-18 DE DE102008000092.2A patent/DE102008000092B4/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2008180101A (ja) | 2008-08-07 |
DE102008000092A1 (de) | 2008-08-07 |
DE102008000092B4 (de) | 2015-02-12 |
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