JP2015507125A - 配量装置の作動方法 - Google Patents

配量装置の作動方法 Download PDF

Info

Publication number
JP2015507125A
JP2015507125A JP2014555226A JP2014555226A JP2015507125A JP 2015507125 A JP2015507125 A JP 2015507125A JP 2014555226 A JP2014555226 A JP 2014555226A JP 2014555226 A JP2014555226 A JP 2014555226A JP 2015507125 A JP2015507125 A JP 2015507125A
Authority
JP
Japan
Prior art keywords
pressure
accumulator
valve
metering
pump
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.)
Pending
Application number
JP2014555226A
Other languages
English (en)
Japanese (ja)
Inventor
ロルフ ブリュック
ロルフ ブリュック
ヤン ホジソン
ヤン ホジソン
Original Assignee
エミテック ゲゼルシヤフト フユア エミツシオンステクノロギー ミツト ベシユレンクテル ハフツング
エミテック ゲゼルシヤフト フユア エミツシオンステクノロギー ミツト ベシユレンクテル ハフツング
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 エミテック ゲゼルシヤフト フユア エミツシオンステクノロギー ミツト ベシユレンクテル ハフツング, エミテック ゲゼルシヤフト フユア エミツシオンステクノロギー ミツト ベシユレンクテル ハフツング filed Critical エミテック ゲゼルシヤフト フユア エミツシオンステクノロギー ミツト ベシユレンクテル ハフツング
Publication of JP2015507125A publication Critical patent/JP2015507125A/ja
Pending legal-status Critical Current

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
    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. by adjusting the 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
    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • F01N3/36—Arrangements for supply of additional fuel
    • 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
    • F01N2610/01—Adding substances to exhaust gases the substance being catalytic material in liquid form
    • 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
    • F01N2610/1446—Means for damping of pressure fluctuations in the delivery system, e.g. by puffer volumes or throttling
    • 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
    • F01N2610/1473—Overflow or return means for the substances, e.g. conduits or valves for the return path
    • 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
    • F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
    • F01N2900/1806—Properties of reducing agent or dosing system
    • F01N2900/1808—Pressure
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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)
  • Accessories For Mixers (AREA)
JP2014555226A 2012-02-03 2013-02-01 配量装置の作動方法 Pending JP2015507125A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012002059A DE102012002059A1 (de) 2012-02-03 2012-02-03 Verfahren zum Betrieb einer Dosiervorrichtung
DE102012002059.7 2012-02-03
PCT/EP2013/052044 WO2013113882A2 (de) 2012-02-03 2013-02-01 Verfahren zum betrieb einer dosiervorrichtung

Publications (1)

Publication Number Publication Date
JP2015507125A true JP2015507125A (ja) 2015-03-05

Family

ID=47678778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014555226A Pending JP2015507125A (ja) 2012-02-03 2013-02-01 配量装置の作動方法

Country Status (9)

Country Link
US (1) US20140338311A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP2809898A2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JP2015507125A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
KR (1) KR101719403B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CN (1) CN104093946A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE102012002059A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IN (1) IN2014DN06574A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
RU (1) RU2595705C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO2013113882A2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019156690A1 (en) * 2018-02-12 2019-08-15 Cummins Emission Solutions Inc. Reductant insertion assembly comprising a bladder
FR3107352B1 (fr) * 2020-02-17 2022-01-14 Vitesco Technologies Procédé de mesure d’un débit de liquide à la sortie d’une pompe
DE102020117216A1 (de) * 2020-06-30 2021-12-30 Fresenius Medical Care Deutschland Gmbh Verfahren und Vorrichtung zum Dosieren von Lösungen
DE102021121029B4 (de) 2021-08-12 2024-07-18 Volkswagen Aktiengesellschaft Verbrennungsmotor und Verfahren zur Dosierung eines Reduktionsmittels in die Abgasanlage eines Verbrennungsmotors

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03129712U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1990-04-10 1991-12-26
JP2003502568A (ja) * 1999-06-22 2003-01-21 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 還元媒体の調量のための装置
JP2005307769A (ja) * 2004-04-19 2005-11-04 Hino Motors Ltd 排気浄化装置
JP2006515657A (ja) * 2003-09-23 2006-06-01 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング 排出ガス後処理システムを備えた内燃機関
JP2008151094A (ja) * 2006-12-20 2008-07-03 Aisan Ind Co Ltd 内燃機関の排気浄化装置
JP2008255948A (ja) * 2007-04-06 2008-10-23 Denso Corp 燃料噴射弁およびそれを用いた燃料噴射システム

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19819579C1 (de) * 1998-04-30 1999-09-30 Siemens Ag Verfahren und Vorrichtung zur Abgasnachbehandlung für eine mit einem SCR-Katalysator ausgestattete Brennkraftmaschine
DE19947197A1 (de) * 1999-10-01 2001-04-12 Bosch Gmbh Robert Vorrichtung und Verfahren zur Dosierung eines Reduktionsmittels
DE10127834A1 (de) * 2001-06-08 2002-12-12 Bosch Gmbh Robert Vorrichtung und Verfahren zur Dosierung eines Reduktionsmittels zur Entfernung von Stickoxiden aus Abgasen
US6941746B2 (en) * 2002-11-21 2005-09-13 Combustion Components Associates, Inc. Mobile diesel selective catalytic reduction systems and methods
EP1435458B1 (de) * 2002-12-23 2008-10-15 Grundfos NoNox a/s Dosierpumpenaggregat
DE10324482B4 (de) * 2003-05-30 2014-08-21 Robert Bosch Gmbh Vorrichtung zur Dosierung eines Reduktionsmittels zum Abgas eines Verbrennungsmotors
DE102004046881A1 (de) * 2004-09-28 2006-04-13 Robert Bosch Gmbh Zuführsystem für ein Medium, insbesondere zur Behandlung von Abgasen einer Brennkraftmaschine, Abgasreinigungsvorrichtung und Verfahren zum Betreiben eines Zuführsystems
DE102004050023A1 (de) * 2004-10-13 2006-04-27 L'orange Gmbh Einrichtung zur dosierten Einspritzung eines Reduktionsmittels in den Abgastrakt einer Brennkraftmaschine
AT500849B8 (de) * 2004-11-15 2007-02-15 Pankl Emission Control Systems Harnstoffdosiervorrichtung
DE102005002318A1 (de) * 2005-01-17 2006-07-27 Robert Bosch Gmbh Abgasnachbehandlungsverfahren und Vorrichtung hierzu
JP4804242B2 (ja) * 2006-06-26 2011-11-02 Ｕｄトラックス株式会社 エンジンの排気浄化装置
DE102006058880A1 (de) * 2006-12-13 2008-07-03 Siemens Ag Verfahren zur Korrektur eines Ausgangssignals eines Lambda-Sensors und Brennkraftmaschine
JP4906525B2 (ja) * 2007-01-26 2012-03-28 ボッシュ株式会社 還元剤噴射弁の詰まり判定装置及び還元剤噴射弁の詰まり判定方法
JP4165896B2 (ja) * 2007-02-19 2008-10-15 ボッシュ株式会社 還元剤経路の詰まり判定装置及び還元剤経路の詰まり判定方法
DE102009005790B4 (de) * 2009-01-22 2023-05-17 Albonair Gmbh Dosiersystem
DE102008010073B4 (de) 2008-02-19 2010-10-21 Thomas Magnete Gmbh System und Verfahren zum Dosieren eines Fluids
DE102008013406A1 (de) * 2008-03-10 2009-09-17 Robert Bosch Gmbh Abgasnachbehandlungsvorrichtung mit verbesserter Druckpulsdämpfung
DE102008049097A1 (de) * 2008-09-26 2010-04-01 Daimler Ag Kraftwagen mit System zum Zuführen von Flüssigkeit in ein anderes Medium, insbesondere zum Zuführen eines Reduktionsmittels in das Abgas eines Verbrennungsmotors
DE102009003101A1 (de) * 2009-05-14 2010-11-18 Robert Bosch Gmbh Antriebsaggregat sowie Verfahren zum Betreiben eines Antriebsaggregats
CN201924999U (zh) * 2010-11-30 2011-08-10 苏州派格力减排系统有限公司 尿素计量喷射泵自动标定系统
DE102011110056B4 (de) * 2011-08-12 2022-08-11 Vitesco Technologies GmbH Verfahren zur Dosierung eines Reduktionsmittels
DE102012204385B4 (de) * 2012-03-20 2024-05-16 Robert Bosch Gmbh Verfahren und Steuereinheit zur Dosierung von Kraftstoff in einen Abgaskanal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03129712U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1990-04-10 1991-12-26
JP2003502568A (ja) * 1999-06-22 2003-01-21 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 還元媒体の調量のための装置
JP2006515657A (ja) * 2003-09-23 2006-06-01 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング 排出ガス後処理システムを備えた内燃機関
JP2005307769A (ja) * 2004-04-19 2005-11-04 Hino Motors Ltd 排気浄化装置
JP2008151094A (ja) * 2006-12-20 2008-07-03 Aisan Ind Co Ltd 内燃機関の排気浄化装置
JP2008255948A (ja) * 2007-04-06 2008-10-23 Denso Corp 燃料噴射弁およびそれを用いた燃料噴射システム

Also Published As

Publication number Publication date
KR101719403B1 (ko) 2017-03-23
EP2809898A2 (de) 2014-12-10
KR20140115351A (ko) 2014-09-30
IN2014DN06574A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 2015-05-22
RU2014135644A (ru) 2016-03-27
DE102012002059A1 (de) 2013-08-08
RU2595705C2 (ru) 2016-08-27
US20140338311A1 (en) 2014-11-20
WO2013113882A2 (de) 2013-08-08
CN104093946A (zh) 2014-10-08
WO2013113882A3 (de) 2013-10-03

Similar Documents

Publication Publication Date Title
JP5864432B2 (ja) 還元剤の送給装置の作動方法
CN102725490B (zh) 用于将还原剂引入到排气流中的方法
EP2434118B1 (en) Reducing agent dosing system
KR101697445B1 (ko) 계량 장치의 동작 방법
WO2011145567A1 (ja) Ｓｃｒ解凍制御システム
US10301996B2 (en) System and method for varying reductant delivery pressure to aftertreatment systems
EP2769097B1 (en) Method for operating a feed pump which operates in a pulsating fashion
US9140166B1 (en) Reductant dosing system
CN102979604B (zh) 一种还原剂喷射计量装置
EP2034148A4 (en) ENGINE EMISSION CONTROL DEVICE
CN103620173A (zh) 用于操作scr计量单元的方法
CN105658921B (zh) 用于柴油机排气系统中的低温定量供给的系统、方法和装置
JP2015507125A (ja) 配量装置の作動方法
US8409536B2 (en) Exhaust gas purification apparatus of an internal combustion engine
CN103850761A (zh) 选择性催化还原系统及其吹扫方法
JP2013524068A (ja) 還元剤の送給装置の作動方法
JP6685728B2 (ja) 内燃機関の排気浄化装置
JP2013516568A (ja) 還元剤の送給装置の作動方法
US9267411B2 (en) Pressurized tank vehicular fluid delivery system
CN102971500B (zh) 将还原剂喷入内燃机的废气流中的还原剂配量系统
CN106460608A (zh) 具有受抑制的还原剂输送的还原剂计量系统
CN102374003B (zh) 用于监控计量装置的方法
JP2014218973A (ja) 内燃機関の排気浄化装置
EP3126645A1 (en) Anti-clogging device for diesel exhaust fluid supply
JP2008180099A (ja) 還元剤添加弁、およびこれを備える還元剤供給装置

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160126

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20161026

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20161108

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20170208

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170331

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170801

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20180306