FR3126237B1 - Procede de refroidissement d’un conduit d’acheminement d’uree - Google Patents

Procede de refroidissement d’un conduit d’acheminement d’uree Download PDF

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Publication number
FR3126237B1
FR3126237B1 FR2108825A FR2108825A FR3126237B1 FR 3126237 B1 FR3126237 B1 FR 3126237B1 FR 2108825 A FR2108825 A FR 2108825A FR 2108825 A FR2108825 A FR 2108825A FR 3126237 B1 FR3126237 B1 FR 3126237B1
Authority
FR
France
Prior art keywords
urea
cooling
exhaust gas
delivery pipe
injector
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
FR2108825A
Other languages
English (en)
Other versions
FR3126237A1 (fr
Inventor
Jonathan Brettar
De Almeida David Nunes
Jérémy Lecaudey
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.)
Vitesco Technologies
Original Assignee
Vitesco Technologies
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 Vitesco Technologies filed Critical Vitesco Technologies
Priority to FR2108825A priority Critical patent/FR3126237B1/fr
Priority to PCT/EP2022/073006 priority patent/WO2023025639A1/fr
Publication of FR3126237A1 publication Critical patent/FR3126237A1/fr
Application granted granted Critical
Publication of FR3126237B1 publication Critical patent/FR3126237B1/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]
    • 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
    • F01N9/00—Electrical control of exhaust gas treating 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
    • 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
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1433—Pumps
    • F01N2610/144—Control thereof
    • 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
    • F01N2610/146—Control thereof, e.g. control of injectors or injection valves
    • 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
    • F01N2610/1493—Purging the reducing agent out of the conduits or nozzle
    • 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
    • F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1602—Temperature of exhaust gas 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

PROCEDE DE REFROIDISSEMENT D’UN CONDUIT D’ACHEMINEMENT D’UREE Un aspect de l’invention concerne un procédé (100) de refroidissement d’un conduit d’acheminement d’urée d’une ligne d’urée comportant les étapes de : activer (101) une pompe (18) pour créer une dépression dans la ligne d’urée ;appliquer (102) une pression ambiante dans la ligne d’urée ;mesurer (103) une température des gaz d’échappement ;mesurer (104) une température d’un injecteur d’urée ;si la température des gaz d’échappement mesurée est supérieure à un seuil de température des gaz d’échappement et la température de l’injecteur mesurée est supérieure à un seuil de température d’injecteur, le procédé (100) comporte une étape de refroidir (105) le conduit d’acheminement d’urée par l’introduction, puis le retrait de solution d’urée dans le conduit d’acheminement d’urée. Figure à publier avec l’abrégé : Figure 3
FR2108825A 2021-08-23 2021-08-23 Procede de refroidissement d’un conduit d’acheminement d’uree Active FR3126237B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2108825A FR3126237B1 (fr) 2021-08-23 2021-08-23 Procede de refroidissement d’un conduit d’acheminement d’uree
PCT/EP2022/073006 WO2023025639A1 (fr) 2021-08-23 2022-08-17 Procede de refroidissement d'un conduit d'acheminement d'uree

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2108825A FR3126237B1 (fr) 2021-08-23 2021-08-23 Procede de refroidissement d’un conduit d’acheminement d’uree
FR2108825 2021-08-23

Publications (2)

Publication Number Publication Date
FR3126237A1 FR3126237A1 (fr) 2023-02-24
FR3126237B1 true FR3126237B1 (fr) 2023-11-03

Family

ID=77711257

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2108825A Active FR3126237B1 (fr) 2021-08-23 2021-08-23 Procede de refroidissement d’un conduit d’acheminement d’uree

Country Status (2)

Country Link
FR (1) FR3126237B1 (fr)
WO (1) WO2023025639A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5912232B2 (ja) * 2010-07-08 2016-04-27 いすゞ自動車株式会社 Ｓｃｒシステム
JP5906637B2 (ja) 2011-09-28 2016-04-20 いすゞ自動車株式会社 異物除去方法及び選択還元触媒システム
FR3010732B1 (fr) * 2013-09-19 2015-10-02 Peugeot Citroen Automobiles Sa Procede de purge d'un systeme de reduction catalytique selective
JP6570255B2 (ja) * 2015-02-06 2019-09-04 ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ 還元剤噴射装置の制御装置及び制御方法

Also Published As

Publication number Publication date
FR3126237A1 (fr) 2023-02-24
WO2023025639A1 (fr) 2023-03-02

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