JP4867675B2 - 還元剤供給装置 - Google Patents

還元剤供給装置 Download PDF

Info

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
Application number
JP2007012440A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008180101A (ja
Inventor
仁 関島
勇介 本江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Priority to JP2007012440A priority Critical patent/JP4867675B2/ja
Priority to DE102008000092.2A priority patent/DE102008000092B4/de
Publication of JP2008180101A publication Critical patent/JP2008180101A/ja
Application granted granted Critical
Publication of JP4867675B2 publication Critical patent/JP4867675B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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)
JP2007012440A 2007-01-23 2007-01-23 還元剤供給装置 Expired - Fee Related JP4867675B2 (ja)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JP2008180101A (ja) 2008-08-07
DE102008000092A1 (de) 2008-08-07
DE102008000092B4 (de) 2015-02-12

Similar Documents

Publication Publication Date Title
JP4867675B2 (ja) 還元剤供給装置
JP4661814B2 (ja) 内燃機関の排気浄化装置
WO2011074311A1 (ja) 還元剤噴射弁の制御装置及び制御方法
US20130283771A1 (en) Reducing agent supply apparatus abnormality diagnosis unit and reducing agent supply apparatus
US20140165539A1 (en) Reducing agent supply apparatus and internal-combustion engine exhaust gas purification apparatus
JP2008169711A (ja) 還元剤供給装置
US9140165B2 (en) Method for operating a delivery unit for a reducing agent and motor vehicle having a delivery unit
WO2011030433A1 (ja) 内燃機関の制御システム
JP4628392B2 (ja) 排ガス浄化装置
CN101876265A (zh) 内燃发动机的废气净化***
JP4748664B2 (ja) 排気浄化装置
JP2010133354A (ja) 還元剤噴射制御装置及び還元剤噴射装置の制御方法並びに内燃機関の排気浄化装置
EP2570626A1 (de) Abgasreinigungssystem für einen verbrennungsmotor
EP2535538A1 (de) Abgasreinigungssystem für einen verbrennungsmotor
JP2006342736A (ja) 排気浄化装置
JP4312807B2 (ja) 排気浄化装置
JP2011149366A (ja) 還元剤噴射弁の詰まり診断装置及び詰まり診断方法並びに内燃機関の排気浄化装置
JP4822772B2 (ja) 内燃機関の排気ガス領域内へ反応剤を導入する方法および該方法を実施する内燃機関の運転装置
JP2009257234A (ja) 内燃機関の排気浄化装置
JP2009133290A (ja) 還元剤ポンプ制御装置及び還元剤吐出システム
JP2016079852A (ja) 内燃機関の排気浄化装置の異常判定システム
JP3979150B2 (ja) 内燃機関のＮＯｘ浄化装置
JP2009185627A (ja) 尿素水供給装置
JP5346798B2 (ja) 排気浄化装置
JP2010053807A (ja) 還元剤供給制御装置及び内燃機関の排気浄化装置

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080709

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100629

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100727

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100916

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110125

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20111018

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20111031

R151 Written notification of patent or utility model registration

Ref document number: 4867675

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20141125

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees