FR3085998B1 - VEHICLE EXHAUST LINE WITH NEUTRAL GAS COOLING CIRCUIT UPSTREAM OF THE DEPOLLUTION SYSTEM - Google Patents

VEHICLE EXHAUST LINE WITH NEUTRAL GAS COOLING CIRCUIT UPSTREAM OF THE DEPOLLUTION SYSTEM Download PDF

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Publication number
FR3085998B1
FR3085998B1 FR1858395A FR1858395A FR3085998B1 FR 3085998 B1 FR3085998 B1 FR 3085998B1 FR 1858395 A FR1858395 A FR 1858395A FR 1858395 A FR1858395 A FR 1858395A FR 3085998 B1 FR3085998 B1 FR 3085998B1
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FR
France
Prior art keywords
cooling circuit
exhaust line
neutral gas
gas cooling
vehicle exhaust
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
FR1858395A
Other languages
French (fr)
Other versions
FR3085998A1 (en
Inventor
Gerard Tardy
Jean Marc Dewaele
Pascal Climaud
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.)
PSA Automobiles SA
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PSA Automobiles SA
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 PSA Automobiles SA filed Critical PSA Automobiles SA
Priority to FR1858395A priority Critical patent/FR3085998B1/en
Publication of FR3085998A1 publication Critical patent/FR3085998A1/en
Application granted granted Critical
Publication of FR3085998B1 publication Critical patent/FR3085998B1/en
Active legal-status Critical Current
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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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • 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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2046—Periodically cooling catalytic reactors
    • 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
    • F01N3/2093—Periodically blowing a gas through the converter, e.g. in a direction opposite to exhaust gas flow or by reversing exhaust gas flow direction
    • 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
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • 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]
    • 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

Abstract

Une ligne d'échappement (LE) est connectée à une sortie (S) de gaz d'échappement d'un moteur thermique (MT) d'un véhicule (V) et comprend : - une partie amont (P1) couplée à cette sortie (S), une partie aval (P2), et un dispositif de dépollution (DD) intercalé entre les parties amont (P1) et aval (P2), - un circuit de refroidissement (CR) comportant un réservoir (RA) stockant un gaz neutre et un dispositif d'alimentation (DA) connecté au réservoir (RA) et à la partie amont (P1), et pouvant être placé dans l'un de deux états ouvert et fermé dans lesquels respectivement il alimente et n'alimente pas en gaz neutre la partie amont (P1), et - au moins un processeur (PR) déclenchant le placement du dispositif d'alimentation (DA) dans son état ouvert lorsque la température des gaz d'échappement produits par le moteur thermique (MT) est supérieure à un seuil choisi.An exhaust line (LE) is connected to an exhaust gas outlet (S) of a heat engine (MT) of a vehicle (V) and comprises: - an upstream part (P1) coupled to this outlet (S), a downstream part (P2), and a pollution control device (DD) interposed between the upstream (P1) and downstream (P2) parts, - a cooling circuit (CR) comprising a tank (RA) storing a gas neutral and a power supply device (DA) connected to the reservoir (RA) and to the upstream part (P1), and which can be placed in one of two open and closed states in which it supplies and does not supply respectively. neutral gas the upstream part (P1), and - at least one processor (PR) triggering the placement of the supply device (DA) in its open state when the temperature of the exhaust gases produced by the heat engine (MT) is greater than a chosen threshold.

FR1858395A 2018-09-18 2018-09-18 VEHICLE EXHAUST LINE WITH NEUTRAL GAS COOLING CIRCUIT UPSTREAM OF THE DEPOLLUTION SYSTEM Active FR3085998B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1858395A FR3085998B1 (en) 2018-09-18 2018-09-18 VEHICLE EXHAUST LINE WITH NEUTRAL GAS COOLING CIRCUIT UPSTREAM OF THE DEPOLLUTION SYSTEM

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1858395 2018-09-18
FR1858395A FR3085998B1 (en) 2018-09-18 2018-09-18 VEHICLE EXHAUST LINE WITH NEUTRAL GAS COOLING CIRCUIT UPSTREAM OF THE DEPOLLUTION SYSTEM

Publications (2)

Publication Number Publication Date
FR3085998A1 FR3085998A1 (en) 2020-03-20
FR3085998B1 true FR3085998B1 (en) 2020-09-11

Family

ID=63896449

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1858395A Active FR3085998B1 (en) 2018-09-18 2018-09-18 VEHICLE EXHAUST LINE WITH NEUTRAL GAS COOLING CIRCUIT UPSTREAM OF THE DEPOLLUTION SYSTEM

Country Status (1)

Country Link
FR (1) FR3085998B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH044021A (en) * 1990-04-20 1992-01-08 Babcock Hitachi Kk High-temperature exhaust gas denitrification device
EP0980966B1 (en) * 1998-08-19 2002-05-08 Bayerische Motoren Werke Aktiengesellschaft Exhaust system with reservoir for an internal combustion engine
US20060225699A1 (en) * 2005-04-06 2006-10-12 Mcloughlin John E Emergency stop apparatus and method of use for an internal combustion engine
JP6017041B2 (en) * 2012-09-06 2016-10-26 三菱日立パワーシステムズ株式会社 Combustion gas cooling device, denitration device equipped with combustion gas cooling device, and combustion gas cooling method
US9234445B2 (en) * 2013-06-06 2016-01-12 Cummins Emission Solutions Inc. Systems and techniques for nozzle cooling of diesel exhaust fluid injection systems

Also Published As

Publication number Publication date
FR3085998A1 (en) 2020-03-20

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