FR3087834B1 - INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE - Google Patents

INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE Download PDF

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Publication number
FR3087834B1
FR3087834B1 FR1859919A FR1859919A FR3087834B1 FR 3087834 B1 FR3087834 B1 FR 3087834B1 FR 1859919 A FR1859919 A FR 1859919A FR 1859919 A FR1859919 A FR 1859919A FR 3087834 B1 FR3087834 B1 FR 3087834B1
Authority
FR
France
Prior art keywords
injector
reducing agent
injecting
flow
combustion engine
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.)
Active
Application number
FR1859919A
Other languages
French (fr)
Other versions
FR3087834A1 (en
Inventor
Thibaut Jeannerot
Jorn Hansen
Eric Ottaviani
Laurent Poinsot
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.)
Faurecia Systemes dEchappement SAS
Original Assignee
Faurecia Systemes dEchappement SAS
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 Faurecia Systemes dEchappement SAS filed Critical Faurecia Systemes dEchappement SAS
Priority to FR1859919A priority Critical patent/FR3087834B1/en
Priority to DKPA201970655A priority patent/DK181450B1/en
Publication of FR3087834A1 publication Critical patent/FR3087834A1/en
Application granted granted Critical
Publication of FR3087834B1 publication Critical patent/FR3087834B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/02—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/16—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
    • 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
    • F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating material
    • 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
    • F01N2260/20—Exhaust treating devices having provisions not otherwise provided for for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/02—Surface coverings for thermal insulation
    • 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
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • 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
    • F01N2610/1486—Means to prevent the substance from freezing
    • 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)

Abstract

L'injecteur (32) comprend une buse d'injection (34), un système de dosage (36) pour fournir un flux dosé de l'agent réducteur à la buse d'injection, et une conduite d'injection (38) reliant le système de dosage (36) à la buse d'injection (34). L'injecteur (32) comprend des moyens de chauffage agencés pour chauffer au moins une partie de l'injecteur (32).The injector (32) includes an injection nozzle (34), a metering system (36) for supplying a metered flow of the reducing agent to the injection nozzle, and an injection line (38) connecting the metering system (36) to the injection nozzle (34). The injector (32) comprises heating means arranged to heat at least part of the injector (32).

FR1859919A 2018-10-26 2018-10-26 INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE Active FR3087834B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1859919A FR3087834B1 (en) 2018-10-26 2018-10-26 INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE
DKPA201970655A DK181450B1 (en) 2018-10-26 2019-10-21 An injector for injecting a gaseous reducing agent into an exhaust gas stream of an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1859919A FR3087834B1 (en) 2018-10-26 2018-10-26 INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
FR3087834A1 FR3087834A1 (en) 2020-05-01
FR3087834B1 true FR3087834B1 (en) 2021-05-07

Family

ID=65444104

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1859919A Active FR3087834B1 (en) 2018-10-26 2018-10-26 INJECTOR FOR INJECTING A GAS REDUCING AGENT INTO A FLOW OF EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE

Country Status (2)

Country Link
DK (1) DK181450B1 (en)
FR (1) FR3087834B1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7614213B2 (en) * 2003-09-19 2009-11-10 Nissan Diesel Motor Co., Ltd. Engine exhaust emission purification apparatus
DE102006060314A1 (en) * 2006-12-20 2008-06-26 Robert Bosch Gmbh Device for conveying fluid media at low temperatures
DE102007022678A1 (en) * 2007-05-11 2008-11-13 Hydraulik-Ring Gmbh Ammonia based exhaust gas re-treatment unit feeds gaseous ammonia directly into exhaust gas flow of internal combustion, preferably diesel, engine; exhaust gas flows through exhaust tract free of urea-water vapor and urea-water solution
US7966811B2 (en) * 2007-11-30 2011-06-28 Perkins Engines Company Limited Exhaust treatment system having a diverter valve
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
FR2974848A1 (en) * 2011-05-02 2012-11-09 Peugeot Citroen Automobiles Sa Exhaust line for use with nitrogen oxide selective catalytic reduction system in diesel engine of thermal vehicle, has non-return valve preventing increase of particles toward reservoir, and heat exchanger placed around valve to heat valve
FR2994453B1 (en) 2012-08-08 2014-09-05 Snecma LOW WEAR ASSEMBLY FOR AIRBORNE TURBOMACHINE AIRBORNE STATOR CURVED CROWN
FR3022582B1 (en) * 2014-06-19 2016-07-01 Peugeot Citroen Automobiles Sa CATALYTIC SELECTIVE REDUCTION SYSTEM HAVING INSERT HEATER ON ITS INJECTOR
WO2016103417A1 (en) * 2014-12-25 2016-06-30 ボルボ トラック コーポレーション Exhaust purification device for engine
WO2018178849A1 (en) * 2017-03-28 2018-10-04 Johnson Matthey Public Limited Company Egr urea hydrolysis

Also Published As

Publication number Publication date
DK181450B1 (en) 2024-01-24
FR3087834A1 (en) 2020-05-01
DK201970655A1 (en) 2020-06-02

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