FR2985286B1 - Dispositif de post-traitement des gaz d'echappement et son procede de fonctionnement - Google Patents

Dispositif de post-traitement des gaz d'echappement et son procede de fonctionnement Download PDF

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Publication number
FR2985286B1
FR2985286B1 FR1262820A FR1262820A FR2985286B1 FR 2985286 B1 FR2985286 B1 FR 2985286B1 FR 1262820 A FR1262820 A FR 1262820A FR 1262820 A FR1262820 A FR 1262820A FR 2985286 B1 FR2985286 B1 FR 2985286B1
Authority
FR
France
Prior art keywords
treatment device
exhaust gas
exhaust gases
operating method
pump
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.)
Expired - Fee Related
Application number
FR1262820A
Other languages
English (en)
Other versions
FR2985286A1 (fr
Inventor
Frank Gottwald
Godehard Nentwig
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2985286A1 publication Critical patent/FR2985286A1/fr
Application granted granted Critical
Publication of FR2985286B1 publication Critical patent/FR2985286B1/fr
Expired - Fee Related 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
    • 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
    • F01N2610/1493—Purging the reducing agent out of the conduits or nozzle
    • 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

Dispositif de post-traitement des gaz d'échappement (3) pour nettoyer les gaz d'échappement émis par un moteur thermique, notamment pour la réduction catalytique sélective des oxydes d'azote contenus dans les gaz d'échappement comprenant une pompe (7) pour aspirer un agent de nettoyage dans un réservoir (1) et un module de dosage (13) pour alimenter de manière motorisée l'agent dans la conduite des gaz d'échappement du moteur thermique. Une vanne d'arrêt (40) comportant un élément de fermeture (41) équipe la conduite de pression (25) entre la pompe (7) et le module de dosage (13).
FR1262820A 2011-12-29 2012-12-27 Dispositif de post-traitement des gaz d'echappement et son procede de fonctionnement Expired - Fee Related FR2985286B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011090070.5 2011-12-29
DE102011090070A DE102011090070A1 (de) 2011-12-29 2011-12-29 Abgasnachbehandlungsanordnung und Verfahren zur Abgasnachbehandlung

Publications (2)

Publication Number Publication Date
FR2985286A1 FR2985286A1 (fr) 2013-07-05
FR2985286B1 true FR2985286B1 (fr) 2020-01-17

Family

ID=48607842

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1262820A Expired - Fee Related FR2985286B1 (fr) 2011-12-29 2012-12-27 Dispositif de post-traitement des gaz d'echappement et son procede de fonctionnement

Country Status (2)

Country Link
DE (1) DE102011090070A1 (fr)
FR (1) FR2985286B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014223379A1 (de) * 2014-11-17 2016-05-19 Robert Bosch Gmbh Abgasnachbehandlungseinrichtung für eine Brennkraftmaschine
DE102014225942A1 (de) 2014-12-15 2016-06-16 Robert Bosch Gmbh Entnahmeanordnung
DE102016208600A1 (de) 2016-05-19 2017-11-23 Robert Bosch Gmbh Absperrventil, SCR-System und Verfahren zur Leckagedetektion und/oder Dosiermengenabweichungserkennung
DE102016208611A1 (de) 2016-05-19 2017-11-23 Robert Bosch Gmbh Absperrventil, SCR-System und Verfahren zur Leckagedetektion und/oder Dosiermengenabweichungserkennung
DE102019004117A1 (de) 2019-06-08 2020-01-09 Daimler Ag Abgasanlage für eine Verbrennungskraftmaschine eines Kraftwagens sowie Verfahren zum Betreiben einer solchen Abgasanlage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996008639A1 (fr) * 1994-09-13 1996-03-21 Siemens Aktiengesellschaft Procede et systeme permettant d'introduire un fluide dans une dispositif d'epuration de gaz d'echappement
DE102004054238A1 (de) 2004-11-10 2006-05-11 Robert Bosch Gmbh Dosiersystem sowie Verfahren zum Betreiben eines Dosiersystems
DE602008006063D1 (de) * 2008-08-08 2011-05-19 Magneti Marelli Spa Einspritzvorrichtung zum Einspritzen einer Verringerungssubstanz in ein Abgassystem in einem Verbrennungsmotor
DE102011081628A1 (de) 2011-08-26 2013-02-28 Robert Bosch Gmbh Dosiersystem für ein flüssiges Reduktionsmittel
DE102011088217A1 (de) 2011-12-12 2013-06-13 Robert Bosch Gmbh Dosieranordnung für ein flüssiges Abgasnachbehandlungsmittel und Dosierverfahren

Also Published As

Publication number Publication date
DE102011090070A1 (de) 2013-07-04
FR2985286A1 (fr) 2013-07-05

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