IN2014DN06574A - - Google Patents

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Publication number
IN2014DN06574A
IN2014DN06574A IN6574DEN2014A IN2014DN06574A IN 2014DN06574 A IN2014DN06574 A IN 2014DN06574A IN 6574DEN2014 A IN6574DEN2014 A IN 6574DEN2014A IN 2014DN06574 A IN2014DN06574 A IN 2014DN06574A
Authority
IN
India
Prior art keywords
metering
pressure
pressure accumulator
additive
tank
Prior art date
Application number
Inventor
Rolf Brück
Jan Hodgson
Original Assignee
Emitec Ges Für Emissionstechnologie Mbh
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 Emitec Ges Für Emissionstechnologie Mbh filed Critical Emitec Ges Für Emissionstechnologie Mbh
Publication of IN2014DN06574A publication Critical patent/IN2014DN06574A/en

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
    • F01N3/20—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
    • 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
    • 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]
    • 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)

Abstract

The invention relates to a method for operating a metering apparatus (1) for providing a liquid additive. At the minimum the metering apparatus has at least one pump (2) for pumping the additive from a tank (3) into a pressure accumulator (4) a metering valve (5) that is designed to provide additive present in the pressure accumulator (4) in a metered manner and a check valve (6) by means of which additive present in the pressure accumulator (4) can be led back into the tank (3). In the method first a metering demand is established in step a). Subsequently the pump (2) is activated in step b) in order to build up a pressure in the pressure accumulator (4). Then the pressure in the pressure accumulator (4) is set to a desired metering pressure (8). Thereafter the liquid additive is dispensed by the metering valve (5) in step d).
IN6574DEN2014 2012-02-03 2013-02-01 IN2014DN06574A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012002059A DE102012002059A1 (en) 2012-02-03 2012-02-03 Method for operating a metering device
PCT/EP2013/052044 WO2013113882A2 (en) 2012-02-03 2013-02-01 Method for operating a metering apparatus

Publications (1)

Publication Number Publication Date
IN2014DN06574A true IN2014DN06574A (en) 2015-05-22

Family

ID=47678778

Family Applications (1)

Application Number Title Priority Date Filing Date
IN6574DEN2014 IN2014DN06574A (en) 2012-02-03 2013-02-01

Country Status (9)

Country Link
US (1) US20140338311A1 (en)
EP (1) EP2809898A2 (en)
JP (1) JP2015507125A (en)
KR (1) KR101719403B1 (en)
CN (1) CN104093946A (en)
DE (1) DE102012002059A1 (en)
IN (1) IN2014DN06574A (en)
RU (1) RU2595705C2 (en)
WO (1) WO2013113882A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11028752B2 (en) 2018-02-12 2021-06-08 Cummins Emission Solutions Inc. Reductant insertion assembly comprising a bladder
FR3107352B1 (en) * 2020-02-17 2022-01-14 Vitesco Technologies Method for measuring a liquid flow at the outlet of a pump
DE102020117216A1 (en) * 2020-06-30 2021-12-30 Fresenius Medical Care Deutschland Gmbh Method and device for dosing solutions
DE102021121029B4 (en) 2021-08-12 2024-07-18 Volkswagen Aktiengesellschaft Internal combustion engine and method for dosing a reducing agent into the exhaust system of an internal combustion engine

Family Cites Families (28)

* Cited by examiner, † Cited by third party
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JPH0712660Y2 (en) * 1990-04-10 1995-03-29 日野自動車工業株式会社 Exhaust gas purification device used for diesel engine
DE19819579C1 (en) * 1998-04-30 1999-09-30 Siemens Ag Secondary treatment of exhaust from lean burn diesel engine with SCR catalyst, minimizing pump usage and energy consumption
DE19946900A1 (en) * 1999-06-22 2000-12-28 Bosch Gmbh Robert Complex system dosing and mixing urea and air, used for nitrogen oxide conversion in vehicle exhaust purification systems, is integrated into or onto single plastic or metal block
DE19947197A1 (en) * 1999-10-01 2001-04-12 Bosch Gmbh Robert Device and method for dosing a reducing agent
DE10127834A1 (en) * 2001-06-08 2002-12-12 Bosch Gmbh Robert Device for dosing a reducing agent, especially urea or a urea-water solution, comprises units for introducing the agent into a catalyst arrangement, a dosing valve arranged at the end
US6941746B2 (en) * 2002-11-21 2005-09-13 Combustion Components Associates, Inc. Mobile diesel selective catalytic reduction systems and methods
EP1435458B1 (en) * 2002-12-23 2008-10-15 Grundfos NoNox a/s Dosing pump unit
DE10324482B4 (en) * 2003-05-30 2014-08-21 Robert Bosch Gmbh Device for metering a reducing agent to the exhaust gas of an internal combustion engine
DE10346220A1 (en) * 2003-09-23 2005-04-14 Robert Bosch Gmbh Fuel injection combustion engine with exhaust gas treatment has a pressure accumulator for use with a reducing agent storage and injection system for spraying the agent into the exhaust gas
JP2005307769A (en) * 2004-04-19 2005-11-04 Hino Motors Ltd Exhaust emission control device
DE102004046881A1 (en) * 2004-09-28 2006-04-13 Robert Bosch Gmbh Delivery system for a medium, in particular for the treatment of exhaust gases of an internal combustion engine, exhaust gas purification device and method for operating a delivery system
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DE102005002318A1 (en) * 2005-01-17 2006-07-27 Robert Bosch Gmbh Exhaust gas aftertreatment process and device for this purpose
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DE102008013406A1 (en) * 2008-03-10 2009-09-17 Robert Bosch Gmbh Exhaust after-treatment device with improved pressure pulse damping
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DE102011110056B4 (en) * 2011-08-12 2022-08-11 Vitesco Technologies GmbH Process for dosing a reducing agent
DE102012204385B4 (en) * 2012-03-20 2024-05-16 Robert Bosch Gmbh Method and control unit for metering fuel into an exhaust duct

Also Published As

Publication number Publication date
DE102012002059A1 (en) 2013-08-08
KR101719403B1 (en) 2017-03-23
CN104093946A (en) 2014-10-08
WO2013113882A2 (en) 2013-08-08
WO2013113882A3 (en) 2013-10-03
RU2595705C2 (en) 2016-08-27
KR20140115351A (en) 2014-09-30
JP2015507125A (en) 2015-03-05
EP2809898A2 (en) 2014-12-10
RU2014135644A (en) 2016-03-27
US20140338311A1 (en) 2014-11-20

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