US20100242439A1 - Control unit and control method for reductant supply device - Google Patents

Control unit and control method for reductant supply device Download PDF

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Publication number
US20100242439A1
US20100242439A1 US12/738,414 US73841408A US2010242439A1 US 20100242439 A1 US20100242439 A1 US 20100242439A1 US 73841408 A US73841408 A US 73841408A US 2010242439 A1 US2010242439 A1 US 2010242439A1
Authority
US
United States
Prior art keywords
cooling water
control means
temperature
flow rate
reductant
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.)
Abandoned
Application number
US12/738,414
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English (en)
Inventor
Wataru Domon
Hiroyuki Igarashi
Eiji Nakao
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.)
Bosch Corp
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Bosch 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 Bosch Corp filed Critical Bosch Corp
Assigned to BOSCH CORPORATION reassignment BOSCH CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IGARASHI, HIROYUKI, DOMON, WATARU, NAKAO, EIJI
Publication of US20100242439A1 publication Critical patent/US20100242439A1/en
Abandoned legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9431—Processes characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
    • F01N2260/024—Exhaust treating devices having provisions not otherwise provided for for cooling the device using a liquid
    • 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
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • 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
    • F01N2610/11—Adding substances to exhaust gases the substance or part of the dosing system being cooled
    • 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
    • F01N2610/1433—Pumps
    • 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
    • F01N2900/1811—Temperature
    • 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
    • F01N2900/1812—Flow rate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/16—Outlet manifold
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • 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

Definitions

  • the reductant injection valve is cooled effectively by using the cooling water of the internal combustion engine. Further, while the temperature at the tip of the reductant injection valve is detected, the flow rate of the cooling water is adjusted in accordance with the detected temperature. As a result, it is possible to prevent excessive cooling of the reductant injection valve. Accordingly, heat damage of the reductant injection valve is prevented, and crystallization of urea in the vicinity of the reductant injection valve is prevented. Thus, stable atomization of the reductant is realized.
  • an inlet portion of the reductant injection valve 31 is provided with a temperature sensor 33 for detecting the temperature of the urea aqueous solution that flows into the reductant injection valve 31 .
  • a temperature sensor 33 for detecting the temperature of the urea aqueous solution that flows into the reductant injection valve 31 .
  • an inlet portion on the upstream side of the reductant injection valve 31 is provided with a temperature sensor 35 for detecting the temperature of the cooling water that flows into the reductant injection valve 31 . Temperature information detected by the sensors 33 and 35 is transmitted to the DCU 60 .
  • the pump module 40 is provided with the pump 41 .
  • the pump 41 pumps the urea aqueous solution in the storage tank 50 via the second supply passage 57 , and pressure-feeds the urea aqueous solution to the reductant injection valve 31 via the first supply passage 58 .
  • the pump 41 is, for example, an electric gear pump, and can be designed to be duty-controlled by a signal transmitted from the DCU 60 .
  • a pressure sensor 43 is provided in the first supply passage 58 , and the value detected by the pressure sensor 43 is output to the DCU 60 as a signal. The drive duty of the pump 41 is controlled such that the pressure value in the first supply passage 58 is maintained at a predetermined value.
  • drive duty of the pump means the ratio of a pump drive time taken in one cycle, in a pulse width modulation (PWM) control.
  • a reverting valve 71 is provided in the pump module 40 .
  • the reductant supply device 20 does not perform injection control of the urea aqueous solution
  • the urea aqueous solution in a reductant supply passage which includes the pump module 40 , the reductant injection valve 31 , the first supply passage 58 and the second supply passage 57 , is collected into the storage tank 50 . Therefore, when the internal combustion engine 5 is stopped and the control of the reductant supply device 20 is not performed in a cold condition, i.e., under a temperature condition in which the urea aqueous solution is likely to freeze, freezing of the urea aqueous solution in the reductant supply passage is prevented. When the operation of the internal combustion engine is restarted after that, it is ensured that an injection failure due to clogging does not occur.
  • the temperature Ti at the tip of the reductant injection valve is estimated by the injection valve temperature detection portion. This is because the flow rate of the cooling water can be controlled based on a temperature in the vicinity of a nozzle hole where crystallization of urea is likely to occur due to evaporation of water contained in the urea aqueous solution. Moreover, the reductant injection valve is heated by exhaust heat that is transferred via the exhaust pipe. Therefore, if the temperature at the tip of the reductant injection valve, at which the temperature becomes highest, is maintained at a temperature equal to or lower than a heat resistance temperature, it is possible to maintain the entire reductant injection valve at a temperature equal to or lower than the heat resistance temperature.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)
US12/738,414 2007-10-19 2008-09-01 Control unit and control method for reductant supply device Abandoned US20100242439A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007-272370 2007-10-19
JP2007272370A JP2009097479A (ja) 2007-10-19 2007-10-19 還元剤供給装置の制御装置及び制御方法
PCT/JP2008/065641 WO2009050948A1 (ja) 2007-10-19 2008-09-01 還元剤供給装置の制御装置及び制御方法

Publications (1)

Publication Number Publication Date
US20100242439A1 true US20100242439A1 (en) 2010-09-30

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ID=40567225

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/738,414 Abandoned US20100242439A1 (en) 2007-10-19 2008-09-01 Control unit and control method for reductant supply device

Country Status (4)

Country Link
US (1) US20100242439A1 (zh)
JP (1) JP2009097479A (zh)
CN (1) CN101828011A (zh)
WO (1) WO2009050948A1 (zh)

Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100064668A1 (en) * 2007-04-03 2010-03-18 Robert Bosch Gmbh Method for heating a reducing agent metering valve in an scr system for exhaust gas after-treatment in an internal combustion engine
US20100114463A1 (en) * 2008-10-30 2010-05-06 Caterpillar Inc. System for cold starting machine
US20110023466A1 (en) * 2009-08-03 2011-02-03 Hydraulik-Ring Gmbh SCR exhaust gas aftertreatment device
US20110047971A1 (en) * 2009-08-25 2011-03-03 Gm Global Technology Operations, Inc. Dosing control systems and methods
US20110083621A1 (en) * 2009-06-18 2011-04-14 Cummins Ip, Inc. Apparatus, System, and Method for Reductant Line Heating Control
US20110146241A1 (en) * 2008-06-27 2011-06-23 Emitec Gesellschaft Fur Emissionstechologie Mbh Method for operating a urea-water solution metering system and motor vehicle using the system
US20110247316A1 (en) * 2010-04-07 2011-10-13 Ford Global Technologies, Llc Method of controlling urea dosing in an exhaust system of a vehicle
US20120159928A1 (en) * 2010-12-22 2012-06-28 Caterpillar Inc. System and method for introducing a reductant agent
WO2012150395A1 (fr) 2011-05-02 2012-11-08 Peugeot Citroen Automobiles Sa Une ligne d'echappement et vehicule muni de cette ligne
US20130025268A1 (en) * 2010-04-01 2013-01-31 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Method for operating a delivery unit for a reducing agent and motor vehicle having a delivery unit
US20130091829A1 (en) * 2010-06-21 2013-04-18 Andreas Liljestrand Method and device pertaining to limiting the temperature of a dosing unit in a scr system
DE102011088549A1 (de) 2011-12-14 2013-06-20 Robert Bosch Gmbh Kühlung für Dosiermodul
WO2013087492A1 (de) * 2011-12-12 2013-06-20 Robert Bosch Gmbh Dosieranordnung für ein flüssiges abgasnachbehandlungsmittel und dosierverfahren
WO2013087491A1 (de) * 2011-12-12 2013-06-20 Robert Bosch Gmbh Dosieranordnung für ein flüssiges abgasnachbehandlungsmittel und dosierverfahren
US20130269321A1 (en) * 2010-12-27 2013-10-17 Bosch Corporation Exhaust purification system and method for controlling exhaust purification system
US20130306156A1 (en) * 2011-01-28 2013-11-21 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Apparatus having an exhaust gas treatment device with an injector for supplying a fluid, motor vehicle having the apparatus and method for operating the motor vehicle
DE102012011991A1 (de) * 2012-06-16 2013-12-19 Volkswagen Aktiengesellschaft Verfahren zum Betreiben eines Dosierventils und zum Betreiben eines Verbrennungsmotors
US8661785B2 (en) 2011-04-15 2014-03-04 Ford Global Technologies, Llc System and method for liquid reductant injection
CN103748326A (zh) * 2011-05-23 2014-04-23 英瑞杰汽车系统研究公司 添加剂输送系统和用于控制所述系统的方法
US8754720B2 (en) 2011-08-03 2014-06-17 Mi Yan Two-stage pulse signal controller
WO2014102122A1 (en) * 2012-12-24 2014-07-03 Valtra Oy Ab Auxiliary cooling means for a dosing module in an exhaust treatment system
US20140208719A1 (en) * 2011-07-20 2014-07-31 Inergy Automotive Systems Research (Societe Anonyme) Vehicular fluid injection system, controller and method for heating said fluid injection system
US20140250873A1 (en) * 2013-03-01 2014-09-11 Cummins Emission Solutions Inc. Systems and techniques for heating urea injection systems
US20140290222A1 (en) * 2013-03-15 2014-10-02 Komatsu Ltd. Exhaust gas post-treatment unit and construction vehicle carrying same
CN104302881A (zh) * 2014-05-16 2015-01-21 株式会社小松制作所 作业车辆及作业车辆的控制方法
US20150082774A1 (en) * 2013-09-25 2015-03-26 Komatsu Ltd. Work vehicle
WO2015090677A1 (en) * 2013-12-19 2015-06-25 Delphi International Operations Luxembourg S.À R.L. Urea delivery system for scr system
FR3017653A1 (fr) * 2014-02-14 2015-08-21 Peugeot Citroen Automobiles Sa Procede de controle d'un injecteur de systeme de reduction catalytique
CN104863672A (zh) * 2015-04-07 2015-08-26 西南交通大学 一种简易的气动式尿素计量喷射系统
US20150240448A1 (en) * 2014-02-26 2015-08-27 Komatsu Ltd. Work vehicle
DE102014003580A1 (de) 2014-03-11 2015-09-17 Daimler Ag Kühlanordnung und Verfahren zum Kühlen einer Dosiereinrichtung
US9217352B2 (en) 2010-05-17 2015-12-22 Isuzu Motors Limited Exhaust gas purification system
US9217236B2 (en) * 2013-12-27 2015-12-22 Komatsu Ltd. Work vehicle
US9221014B2 (en) 2013-11-20 2015-12-29 Tenneco Automotive Operating Company Inc. Fluid injection control system
US9222391B2 (en) 2013-10-02 2015-12-29 Denso Corporation Exhaust gas purification system
US20160040577A1 (en) * 2013-01-28 2016-02-11 Isuzu Motors Limited Urea water pipe clogging detection device for urea scr
CN105507994A (zh) * 2014-10-13 2016-04-20 天纳克汽车经营有限公司 注水式排气处理系统
US9353662B2 (en) 2010-12-22 2016-05-31 Voss Automotive Gmbh Fabricated media line and use in an SCR catalyst system
WO2016083200A1 (de) * 2014-11-27 2016-06-02 Siemens Aktiengesellschaft Verfahren zum erwärmen eines betriebsstoffs sowie vorratsbehälterheizung und betriebsstoffheizung
US20160153336A1 (en) * 2014-12-02 2016-06-02 Hyundai Motor Company System for cooling vehicle scr and method for controlling the same
WO2016083202A1 (de) * 2014-11-27 2016-06-02 Siemens Aktiengesellschaft Verfahren zum erwärmen eines betriebsstoffs sowie betriebsstoffheizung
US20160258332A1 (en) * 2015-03-02 2016-09-08 Toyota Jidosha Kabushiki Kaisha Exhaust gas control apparatus
US9562454B2 (en) 2011-08-25 2017-02-07 Volkswagen Aktiengesellschaft Exhaust gas treatment device, method for processing exhaust gas, and motor vehicle
EP3109427A4 (en) * 2014-02-21 2017-08-16 Doosan Infracore Co., Ltd. Cooling device of reducing-agent injection module and selective catalyst reduction system having same
US9822685B2 (en) 2013-08-16 2017-11-21 Tenneco Automotive Operating Company Inc. Water injection exhaust treatment system
CN107435570A (zh) * 2016-05-25 2017-12-05 罗伯特·博世有限公司 柴油发动机尾气后处理系统以及流体工作系统
JP2018003667A (ja) * 2016-06-30 2018-01-11 トヨタ自動車株式会社 排気浄化システムの冷却装置
JP2018003669A (ja) * 2016-06-30 2018-01-11 トヨタ自動車株式会社 排気浄化システムの冷却装置
EP3249185A4 (en) * 2014-12-25 2018-07-04 Volvo Truck Corporation Exhaust purification device for engine
US20180320641A1 (en) * 2017-05-08 2018-11-08 Hyundai Motor Company Fuel reforming system
US10215071B2 (en) * 2016-04-28 2019-02-26 Komatsu Ltd. Exhaust gas aftertreatment unit and work vehicle
DE102017217134A1 (de) * 2017-09-26 2019-03-28 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum Zuführen eines flüssigen Reinigungsmediums in einen Kraftfahrzeugabgasstrang
US10294845B2 (en) 2014-08-08 2019-05-21 Isuzu Motors Limited System and method for managing temperature of urea solution
WO2019121019A1 (en) * 2017-12-21 2019-06-27 Robert Bosch Gmbh Dosing module including temperature based control of a coolant circuit
US10450922B2 (en) 2014-11-13 2019-10-22 Isuzu Motors Limited Urea water injection system and method for preventing crystallization in urea water injection device
US10502111B2 (en) 2016-01-11 2019-12-10 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust system for an internal combustion engine and method for operating an exhaust system
CN110608086A (zh) * 2018-06-15 2019-12-24 通用汽车环球科技运作有限责任公司 发动机和冷却剂系统的控制系统和方法
US20200003102A1 (en) * 2018-06-28 2020-01-02 Robert Bosch Gmbh Heating system
DE102018124380A1 (de) * 2018-10-02 2020-04-02 Fpt Motorenforschung Ag Kühlmittelkreis mit integriertem Dosiermodul, Verfahren zur Kühlung eines in einem Kühlmittelkreis integrierten Dosiermoduls
US10634034B2 (en) 2014-11-21 2020-04-28 Tenneco (Suzhou) Emission System Co., Ltd. Common rail, application of the common rail, carbamide spraying system, and control method therefor
US20210404361A1 (en) * 2020-06-30 2021-12-30 Faurecia Emissions Control Technologies, Usa, Llc Exhaust aftertreatment system with thermally controlled reagent doser

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8122710B2 (en) * 2008-12-01 2012-02-28 International Engine Intellectual Property Company, Llc Thermal management of urea dosing components in an engine exhaust after-treatment system
JP5137135B2 (ja) * 2008-12-11 2013-02-06 キャタピラー エス エー アール エル 排気ガス浄化触媒用還元剤供給装置
JP5573351B2 (ja) * 2010-05-17 2014-08-20 いすゞ自動車株式会社 Ｓｃｒシステム
JP2011247135A (ja) * 2010-05-25 2011-12-08 Isuzu Motors Ltd Ｓｃｒシステム
SE537643C2 (sv) * 2010-06-21 2015-09-08 Scania Cv Ab Förfarande och anordning vid kylning av en HC-doseringsenhetför avgasrening
SE537642C2 (sv) * 2010-06-21 2015-09-08 Scania Cv Ab Förfarande och anordning vid kylning av en doseringsenhet för reduktionsmedel
JP5593139B2 (ja) * 2010-06-23 2014-09-17 日野自動車株式会社 排気浄化装置
US20120020857A1 (en) * 2010-07-21 2012-01-26 Isada Raymond Upano Dosing system having recirculation heating and vacuum draining
KR101278574B1 (ko) 2011-07-29 2013-06-26 자동차부품연구원 엔진 배기 정화장치 및 이를 사용한 운송수단
KR101278573B1 (ko) 2011-07-29 2013-06-26 자동차부품연구원 엔진 배기 정화장치 및 이를 사용한 운송수단
DE102012205389A1 (de) * 2012-04-03 2013-10-10 Robert Bosch Gmbh Kühlvorrichtung für Anschlussstück
JP5664796B2 (ja) * 2012-08-23 2015-02-04 トヨタ自動車株式会社 還元剤供給装置
CN103670629B (zh) * 2012-09-20 2016-01-13 北汽福田汽车股份有限公司 发动机的scr后处理系统的尿素管路加热控制方法
JP5855557B2 (ja) * 2012-11-22 2016-02-09 住友建機株式会社 建設機械
CN103114896B (zh) * 2013-03-01 2015-04-22 江苏大学 一种尿素溶液计量喷射装置及其控制方法
US9234445B2 (en) * 2013-06-06 2016-01-12 Cummins Emission Solutions Inc. Systems and techniques for nozzle cooling of diesel exhaust fluid injection systems
JP6213015B2 (ja) * 2013-07-26 2017-10-18 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP2015040480A (ja) * 2013-08-20 2015-03-02 トヨタ自動車株式会社 内燃機関の添加剤供給装置
JP6217408B2 (ja) * 2014-01-24 2017-10-25 コベルコ建機株式会社 建設機械の排気処理装置、および建設機械
DE102014001880A1 (de) * 2014-02-14 2015-08-20 Deutz Aktiengesellschaft Verfahren zum Reinigen von Dieselmotorenabgassen
CN103835789B (zh) * 2014-03-12 2016-07-27 安徽江淮汽车股份有限公司 一种轻型客车scr加热冷却管结构
JP6258791B2 (ja) * 2014-06-06 2018-01-10 日立建機株式会社 建設機械
JP2016061274A (ja) * 2014-09-22 2016-04-25 株式会社クボタ エンジンの排気浄化装置
JP6417911B2 (ja) * 2014-12-09 2018-11-07 株式会社デンソー 排気浄化装置
KR101744828B1 (ko) * 2015-12-08 2017-06-08 현대자동차 주식회사 차량용 냉각 시스템
JP6654469B2 (ja) * 2016-03-08 2020-02-26 株式会社Ｓｏｋｅｎ 内燃機関の制御装置
JP2018066326A (ja) * 2016-10-20 2018-04-26 株式会社デンソー 尿素水噴射制御装置
CN106523094A (zh) * 2016-12-29 2017-03-22 雷沃重工股份有限公司 一种用于调节scr温度的控制装置及农用机械
JP6748023B2 (ja) * 2017-04-25 2020-08-26 ヤンマーパワーテクノロジー株式会社 エンジンシステム
JP6719425B2 (ja) * 2017-07-05 2020-07-08 ヤンマーパワーテクノロジー株式会社 尿素水供給装置
JP7383445B2 (ja) * 2019-10-14 2023-11-20 ボッシュ株式会社 排気浄化装置及び該排気浄化装置の制御方法
JP7320194B2 (ja) * 2019-11-25 2023-08-03 いすゞ自動車株式会社 車両の還元剤解凍装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522218A (en) * 1994-08-23 1996-06-04 Caterpillar Inc. Combustion exhaust purification system and method
US5605042A (en) * 1994-10-12 1997-02-25 Robert Bosch Gmbh Arrangement for the aftertreatment of exhaust gases
US6301879B1 (en) * 1998-06-22 2001-10-16 Hjs Fahrzeugtechnik Gmbh & Co. Exhaust gas purification system for denoxing exhaust gases from combustion units
US7168241B2 (en) * 2004-03-29 2007-01-30 J. Eberspächer GmbH & Co. KG Device for introducing fuel into an exhaust line
US20070079599A1 (en) * 2003-09-05 2007-04-12 Nissan Diesel Motor Co., Ltd. Exhaust gas purifying apparatus in engine
US20070092413A1 (en) * 2003-09-19 2007-04-26 Nissan Diesel Motor Co., Ltd. Engine exhaust emission purification apparatus
US20070199308A1 (en) * 2004-10-29 2007-08-30 Nissan Diesel Motor Co., Ltd. Exhaust emission purifying apparatus for engine
US20080092531A1 (en) * 2006-10-19 2008-04-24 Denso Corporation Exhaust purification device of engine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3468254B2 (ja) * 1995-10-03 2003-11-17 三菱ふそうトラック・バス株式会社 ディーゼルエンジンの排気浄化装置
US5976475A (en) * 1997-04-02 1999-11-02 Clean Diesel Technologies, Inc. Reducing NOx emissions from an engine by temperature-controlled urea injection for selective catalytic reduction
JP3956728B2 (ja) * 2002-03-11 2007-08-08 三菱ふそうトラック・バス株式会社 内燃機関のＮＯｘ浄化装置
JP3732493B2 (ja) * 2003-10-02 2006-01-05 日産ディーゼル工業株式会社 エンジンの排気浄化装置
JP4137838B2 (ja) * 2004-04-30 2008-08-20 ボッシュ株式会社 排気ガス後処理装置用液体供給装置
JP2007040118A (ja) * 2005-08-01 2007-02-15 Osaka Gas Co Ltd 尿素水ノズル装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5522218A (en) * 1994-08-23 1996-06-04 Caterpillar Inc. Combustion exhaust purification system and method
US5605042A (en) * 1994-10-12 1997-02-25 Robert Bosch Gmbh Arrangement for the aftertreatment of exhaust gases
US6301879B1 (en) * 1998-06-22 2001-10-16 Hjs Fahrzeugtechnik Gmbh & Co. Exhaust gas purification system for denoxing exhaust gases from combustion units
US20070079599A1 (en) * 2003-09-05 2007-04-12 Nissan Diesel Motor Co., Ltd. Exhaust gas purifying apparatus in engine
US20070092413A1 (en) * 2003-09-19 2007-04-26 Nissan Diesel Motor Co., Ltd. Engine exhaust emission purification apparatus
US7168241B2 (en) * 2004-03-29 2007-01-30 J. Eberspächer GmbH & Co. KG Device for introducing fuel into an exhaust line
US20070199308A1 (en) * 2004-10-29 2007-08-30 Nissan Diesel Motor Co., Ltd. Exhaust emission purifying apparatus for engine
US20080092531A1 (en) * 2006-10-19 2008-04-24 Denso Corporation Exhaust purification device of engine

Cited By (97)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100064668A1 (en) * 2007-04-03 2010-03-18 Robert Bosch Gmbh Method for heating a reducing agent metering valve in an scr system for exhaust gas after-treatment in an internal combustion engine
US20110146241A1 (en) * 2008-06-27 2011-06-23 Emitec Gesellschaft Fur Emissionstechologie Mbh Method for operating a urea-water solution metering system and motor vehicle using the system
US20100114463A1 (en) * 2008-10-30 2010-05-06 Caterpillar Inc. System for cold starting machine
US20110083621A1 (en) * 2009-06-18 2011-04-14 Cummins Ip, Inc. Apparatus, System, and Method for Reductant Line Heating Control
US8561392B2 (en) * 2009-06-18 2013-10-22 Cummins Ip, Inc. Apparatus, system, and method for reductant line heating control
US20110023466A1 (en) * 2009-08-03 2011-02-03 Hydraulik-Ring Gmbh SCR exhaust gas aftertreatment device
US8938949B2 (en) * 2009-08-03 2015-01-27 Cummins Ltd. SCR exhaust gas aftertreatment device
US8413427B2 (en) * 2009-08-25 2013-04-09 GM Global Technology Operations LLC Dosing control systems and methods
US20110047971A1 (en) * 2009-08-25 2011-03-03 Gm Global Technology Operations, Inc. Dosing control systems and methods
US20130025268A1 (en) * 2010-04-01 2013-01-31 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Method for operating a delivery unit for a reducing agent and motor vehicle having a delivery unit
US9140165B2 (en) * 2010-04-01 2015-09-22 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Method for operating a delivery unit for a reducing agent and motor vehicle having a delivery unit
US20110247316A1 (en) * 2010-04-07 2011-10-13 Ford Global Technologies, Llc Method of controlling urea dosing in an exhaust system of a vehicle
US9217352B2 (en) 2010-05-17 2015-12-22 Isuzu Motors Limited Exhaust gas purification system
US9683477B2 (en) * 2010-06-21 2017-06-20 Scania Cv Ab Method and device pertaining to limiting the temperature of a dosing unit in a SCR system
US20130091829A1 (en) * 2010-06-21 2013-04-18 Andreas Liljestrand Method and device pertaining to limiting the temperature of a dosing unit in a scr system
US20120159928A1 (en) * 2010-12-22 2012-06-28 Caterpillar Inc. System and method for introducing a reductant agent
US9353662B2 (en) 2010-12-22 2016-05-31 Voss Automotive Gmbh Fabricated media line and use in an SCR catalyst system
US8516800B2 (en) * 2010-12-22 2013-08-27 Caterpillar Inc. System and method for introducing a reductant agent
US9255511B2 (en) * 2010-12-27 2016-02-09 Bosch Corporation Exhaust purification system and method for controlling exhaust purification system
US20130269321A1 (en) * 2010-12-27 2013-10-17 Bosch Corporation Exhaust purification system and method for controlling exhaust purification system
US20130306156A1 (en) * 2011-01-28 2013-11-21 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Apparatus having an exhaust gas treatment device with an injector for supplying a fluid, motor vehicle having the apparatus and method for operating the motor vehicle
US8661785B2 (en) 2011-04-15 2014-03-04 Ford Global Technologies, Llc System and method for liquid reductant injection
WO2012150395A1 (fr) 2011-05-02 2012-11-08 Peugeot Citroen Automobiles Sa Une ligne d'echappement et vehicule muni de cette ligne
US20140174548A1 (en) * 2011-05-23 2014-06-26 Inergy Automotive Systems Research (Societe Anonyme) Additive delivery system and method for controlling said system
US9582013B2 (en) * 2011-05-23 2017-02-28 Inergy Automotive Systems Research (Societe Anonyme) Additive delivery system and method for controlling said system
CN103748326A (zh) * 2011-05-23 2014-04-23 英瑞杰汽车系统研究公司 添加剂输送系统和用于控制所述系统的方法
US20140208719A1 (en) * 2011-07-20 2014-07-31 Inergy Automotive Systems Research (Societe Anonyme) Vehicular fluid injection system, controller and method for heating said fluid injection system
US9708954B2 (en) * 2011-07-20 2017-07-18 Inergy Automotive Systems Research (Societe Anonyme) Vehicular fluid injection system, controller and method for heating said fluid injection system
US8754720B2 (en) 2011-08-03 2014-06-17 Mi Yan Two-stage pulse signal controller
US9562454B2 (en) 2011-08-25 2017-02-07 Volkswagen Aktiengesellschaft Exhaust gas treatment device, method for processing exhaust gas, and motor vehicle
CN104053873A (zh) * 2011-12-12 2014-09-17 罗伯特·博世有限公司 用于液态的尾气后处理介质的配量装置和配量方法
US9416710B2 (en) 2011-12-12 2016-08-16 Robert Bosch Gmbh Metering arrangement for a liquid exhaust-gas aftertreatment medium and metering method
WO2013087491A1 (de) * 2011-12-12 2013-06-20 Robert Bosch Gmbh Dosieranordnung für ein flüssiges abgasnachbehandlungsmittel und dosierverfahren
WO2013087492A1 (de) * 2011-12-12 2013-06-20 Robert Bosch Gmbh Dosieranordnung für ein flüssiges abgasnachbehandlungsmittel und dosierverfahren
DE102011088549A1 (de) 2011-12-14 2013-06-20 Robert Bosch Gmbh Kühlung für Dosiermodul
DE102012011991A1 (de) * 2012-06-16 2013-12-19 Volkswagen Aktiengesellschaft Verfahren zum Betreiben eines Dosierventils und zum Betreiben eines Verbrennungsmotors
US20150226103A1 (en) * 2012-06-16 2015-08-13 Volkswagen Aktiengesellschaft Method for operating a dosing valve, and corresponding internal combustion engine
US9228466B2 (en) * 2012-06-16 2016-01-05 Volkswagen Aktiengesellschaft Method for operating a dosing valve, and corresponding internal combustion engine
WO2014102122A1 (en) * 2012-12-24 2014-07-03 Valtra Oy Ab Auxiliary cooling means for a dosing module in an exhaust treatment system
US20160040577A1 (en) * 2013-01-28 2016-02-11 Isuzu Motors Limited Urea water pipe clogging detection device for urea scr
US9605574B2 (en) * 2013-01-28 2017-03-28 Isuzu Motors Limited Urea water pipe clogging detection device for urea selective catalytic reduction
US9470129B2 (en) 2013-03-01 2016-10-18 Cummins Emission Solutions Inc. Systems and techniques for heating urea injection systems
US20140250873A1 (en) * 2013-03-01 2014-09-11 Cummins Emission Solutions Inc. Systems and techniques for heating urea injection systems
US8959903B2 (en) * 2013-03-01 2015-02-24 Cummins Emission Solutions Inc. Systems and techniques for heating urea injection systems
DE112013000161C5 (de) 2013-03-15 2023-03-16 Komatsu Ltd. Abgasnachbehandlungseinheit und ein diese enthaltendes Baufahrzeug
DE112013000161B4 (de) * 2013-03-15 2017-08-24 Komatsu Ltd. Abgasnachbehandlungseinheit und ein diese enthaltendes Baufahrzeug
US8973353B2 (en) * 2013-03-15 2015-03-10 Komatsu Ltd. Exhaust gas post-treatment unit and construction vehicle carrying same
US9145806B2 (en) 2013-03-15 2015-09-29 Komatsu Ltd. Exhaust treatment unit and work vehicle having exhaust treatment unit
US20140290222A1 (en) * 2013-03-15 2014-10-02 Komatsu Ltd. Exhaust gas post-treatment unit and construction vehicle carrying same
US9822685B2 (en) 2013-08-16 2017-11-21 Tenneco Automotive Operating Company Inc. Water injection exhaust treatment system
US9726065B2 (en) * 2013-09-25 2017-08-08 Komatsu Ltd. Work vehicle
US20150082774A1 (en) * 2013-09-25 2015-03-26 Komatsu Ltd. Work vehicle
DE112013000151B4 (de) 2013-09-25 2022-10-27 Komatsu Ltd. Arbeitsfahrzeug
US9222391B2 (en) 2013-10-02 2015-12-29 Denso Corporation Exhaust gas purification system
US9221014B2 (en) 2013-11-20 2015-12-29 Tenneco Automotive Operating Company Inc. Fluid injection control system
WO2015090677A1 (en) * 2013-12-19 2015-06-25 Delphi International Operations Luxembourg S.À R.L. Urea delivery system for scr system
US9217236B2 (en) * 2013-12-27 2015-12-22 Komatsu Ltd. Work vehicle
FR3017653A1 (fr) * 2014-02-14 2015-08-21 Peugeot Citroen Automobiles Sa Procede de controle d'un injecteur de systeme de reduction catalytique
EP3109427A4 (en) * 2014-02-21 2017-08-16 Doosan Infracore Co., Ltd. Cooling device of reducing-agent injection module and selective catalyst reduction system having same
US10066527B2 (en) 2014-02-21 2018-09-04 Doosan Infracore Co., Ltd. Cooling device for reducing agent injection module and selective catalytic reduction system having the same
US9303388B2 (en) * 2014-02-26 2016-04-05 Komatsu Ltd. Work vehicle
DE112014000021B4 (de) * 2014-02-26 2017-11-09 Komatsu Ltd. Baufahrzeug
US20150240448A1 (en) * 2014-02-26 2015-08-27 Komatsu Ltd. Work vehicle
DE102014003580A1 (de) 2014-03-11 2015-09-17 Daimler Ag Kühlanordnung und Verfahren zum Kühlen einer Dosiereinrichtung
US9488088B2 (en) * 2014-05-16 2016-11-08 Komatsu Ltd. Work vehicle and method of controlling work vehicle
CN104302881A (zh) * 2014-05-16 2015-01-21 株式会社小松制作所 作业车辆及作业车辆的控制方法
US10294845B2 (en) 2014-08-08 2019-05-21 Isuzu Motors Limited System and method for managing temperature of urea solution
CN105507994A (zh) * 2014-10-13 2016-04-20 天纳克汽车经营有限公司 注水式排气处理系统
US10450922B2 (en) 2014-11-13 2019-10-22 Isuzu Motors Limited Urea water injection system and method for preventing crystallization in urea water injection device
US10634034B2 (en) 2014-11-21 2020-04-28 Tenneco (Suzhou) Emission System Co., Ltd. Common rail, application of the common rail, carbamide spraying system, and control method therefor
WO2016083202A1 (de) * 2014-11-27 2016-06-02 Siemens Aktiengesellschaft Verfahren zum erwärmen eines betriebsstoffs sowie betriebsstoffheizung
US10428709B2 (en) 2014-11-27 2019-10-01 Siemens Mobility GmbH Method for heating an operating agent, as well as reservoir heating system and an operating agent heating system
WO2016083200A1 (de) * 2014-11-27 2016-06-02 Siemens Aktiengesellschaft Verfahren zum erwärmen eines betriebsstoffs sowie vorratsbehälterheizung und betriebsstoffheizung
US10364726B2 (en) 2014-11-27 2019-07-30 Siemens Aktiengesellschaft Method for heating an operating agent, and an operating agent heating system
US9903245B2 (en) * 2014-12-02 2018-02-27 Hyundai Motor Company System for cooling vehicle SCR and method for controlling the same
US20160153336A1 (en) * 2014-12-02 2016-06-02 Hyundai Motor Company System for cooling vehicle scr and method for controlling the same
EP3249185A4 (en) * 2014-12-25 2018-07-04 Volvo Truck Corporation Exhaust purification device for engine
US10513960B2 (en) 2014-12-25 2019-12-24 Volvo Truck Corporation Exhaust purification device for engine
US9683473B2 (en) * 2015-03-02 2017-06-20 Toyota Jidosha Kabushiki Kaisha Exhaust gas control apparatus
US20160258332A1 (en) * 2015-03-02 2016-09-08 Toyota Jidosha Kabushiki Kaisha Exhaust gas control apparatus
CN104863672A (zh) * 2015-04-07 2015-08-26 西南交通大学 一种简易的气动式尿素计量喷射系统
US10502111B2 (en) 2016-01-11 2019-12-10 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust system for an internal combustion engine and method for operating an exhaust system
US10215071B2 (en) * 2016-04-28 2019-02-26 Komatsu Ltd. Exhaust gas aftertreatment unit and work vehicle
CN107435570A (zh) * 2016-05-25 2017-12-05 罗伯特·博世有限公司 柴油发动机尾气后处理系统以及流体工作系统
JP2018003669A (ja) * 2016-06-30 2018-01-11 トヨタ自動車株式会社 排気浄化システムの冷却装置
JP2018003667A (ja) * 2016-06-30 2018-01-11 トヨタ自動車株式会社 排気浄化システムの冷却装置
US20180320641A1 (en) * 2017-05-08 2018-11-08 Hyundai Motor Company Fuel reforming system
DE102017217134B4 (de) * 2017-09-26 2021-04-01 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum Zuführen eines flüssigen Reinigungsmediums in einen Kraftfahrzeugabgasstrang
DE102017217134A1 (de) * 2017-09-26 2019-03-28 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum Zuführen eines flüssigen Reinigungsmediums in einen Kraftfahrzeugabgasstrang
WO2019121019A1 (en) * 2017-12-21 2019-06-27 Robert Bosch Gmbh Dosing module including temperature based control of a coolant circuit
CN110608086A (zh) * 2018-06-15 2019-12-24 通用汽车环球科技运作有限责任公司 发动机和冷却剂系统的控制系统和方法
US20200003102A1 (en) * 2018-06-28 2020-01-02 Robert Bosch Gmbh Heating system
US10830120B2 (en) * 2018-06-28 2020-11-10 Robert Bosch Gmbh Heating system
DE102018124380A1 (de) * 2018-10-02 2020-04-02 Fpt Motorenforschung Ag Kühlmittelkreis mit integriertem Dosiermodul, Verfahren zur Kühlung eines in einem Kühlmittelkreis integrierten Dosiermoduls
EP3633158A1 (de) * 2018-10-02 2020-04-08 Robert Bosch GmbH Kühlmittelkreis mit integriertem dosiermodul, verfahren zur kühlung eines in einem kühlmittelkreis integrierten dosiermoduls
US20210404361A1 (en) * 2020-06-30 2021-12-30 Faurecia Emissions Control Technologies, Usa, Llc Exhaust aftertreatment system with thermally controlled reagent doser
US11225894B1 (en) * 2020-06-30 2022-01-18 Faurecia Emissions Control Technologies, Usa, Llc Exhaust aftertreatment system with thermally controlled reagent doser

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