FR3087835B1 - Injecteur pour injecter un agent reducteur gazeux dans le flux de gaz d’echappement d’un moteur a combustion interne - Google Patents

Injecteur pour injecter un agent reducteur gazeux dans le flux de gaz d’echappement d’un moteur a combustion interne Download PDF

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Publication number
FR3087835B1
FR3087835B1 FR1859923A FR1859923A FR3087835B1 FR 3087835 B1 FR3087835 B1 FR 3087835B1 FR 1859923 A FR1859923 A FR 1859923A FR 1859923 A FR1859923 A FR 1859923A FR 3087835 B1 FR3087835 B1 FR 3087835B1
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FR
France
Prior art keywords
reducing agent
injector
injecting
combustion engine
internal combustion
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
FR1859923A
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English (en)
Other versions
FR3087835A1 (fr
Inventor
Morgane Guldner
Thibaut Jeannerot
Jorn Hansen
Ludovic Geant
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 FR1859923A priority Critical patent/FR3087835B1/fr
Priority to DKPA201970656A priority patent/DK180870B1/en
Publication of FR3087835A1 publication Critical patent/FR3087835A1/fr
Application granted granted Critical
Publication of FR3087835B1 publication Critical patent/FR3087835B1/fr
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]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/06—Adding substances to exhaust gases the substance being in the gaseous 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
    • F01N2610/10—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
    • 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
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
    • 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 comprend au moins une buse d'injection (34), un système de dosage pour fournir un écoulement dosé de l'agent réducteur gazeux à la ou à chaque buse d'injection (34), et une conduite d'injection (38) reliant le système de dosage à la ou à chaque buse d'injection (34). La conduite d'injection (38) comprend au moins une chambre tampon (50), un tuyau en amont (52) reliant la chambre tampon (50) au système de dosage (36), et un tuyau en aval (54) reliant la chambre tampon (50) à une buse d'injection (34) respective. La chambre tampon (50) a une section d'écoulement élargie par rapport au tuyau en amont (52).
FR1859923A 2018-10-26 2018-10-26 Injecteur pour injecter un agent reducteur gazeux dans le flux de gaz d’echappement d’un moteur a combustion interne Active FR3087835B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1859923A FR3087835B1 (fr) 2018-10-26 2018-10-26 Injecteur pour injecter un agent reducteur gazeux dans le flux de gaz d’echappement d’un moteur a combustion interne
DKPA201970656A DK180870B1 (en) 2018-10-26 2019-10-21 Injector for injecting a gaseous reducing agent into the exhaust gas stream of an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1859923A FR3087835B1 (fr) 2018-10-26 2018-10-26 Injecteur pour injecter un agent reducteur gazeux dans le flux de gaz d’echappement d’un moteur a combustion interne

Publications (2)

Publication Number Publication Date
FR3087835A1 FR3087835A1 (fr) 2020-05-01
FR3087835B1 true FR3087835B1 (fr) 2021-03-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR1859923A Active FR3087835B1 (fr) 2018-10-26 2018-10-26 Injecteur pour injecter un agent reducteur gazeux dans le flux de gaz d’echappement d’un moteur a combustion interne

Country Status (2)

Country Link
DK (1) DK180870B1 (fr)
FR (1) FR3087835B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3118098B1 (fr) * 2020-12-17 2023-06-09 Faurecia Systemes Dechappement Dispositif d’injection d’un fluide dans une conduite d’échappement et système d’échappement associé

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6399034B1 (en) * 1997-05-14 2002-06-04 Hjs Fahrzeugtechnik Gmbh & Co. Process for reducing nitrogen oxides on SCR catalyst
DE19728343C5 (de) * 1997-07-03 2013-02-21 Robert Bosch Gmbh Verfahren und Vorrichtung zur selektiven katalytischen NOx-Reduktion
US9400064B2 (en) * 2007-05-23 2016-07-26 Amminex A/S Method and device for ammonia storage and delivery using in-situ re-saturation of a delivery unit
DE102007059850A1 (de) * 2007-12-12 2009-06-25 Robert Bosch Gmbh Abgasnachbehandlungsanordnung und Verfahren zur Nachbehandlung von Abgasen
JP4888480B2 (ja) * 2008-12-15 2012-02-29 株式会社デンソー 排気浄化システムの制御装置
EP2366448B1 (fr) * 2010-03-16 2016-07-27 Amminex Emissions Technology A/S Procédé et dispositif de dosage contrôlé d'un gaz avec une pression d'alimentation fluctuante
FR2994455B1 (fr) * 2012-08-10 2014-09-05 Faurecia Sys Echappement Ensemble de fourniture d'un flux dose de gaz, procede associe, ligne d'echappement de vehicule equipee d'un tel ensemble

Also Published As

Publication number Publication date
FR3087835A1 (fr) 2020-05-01
DK180870B1 (en) 2022-06-08
DK201970656A1 (en) 2020-06-02

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