FR3122215B1 - METHOD FOR INJECTING AIR INTO AN EXHAUST GAS CATALYST - Google Patents

METHOD FOR INJECTING AIR INTO AN EXHAUST GAS CATALYST Download PDF

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Publication number
FR3122215B1
FR3122215B1 FR2104311A FR2104311A FR3122215B1 FR 3122215 B1 FR3122215 B1 FR 3122215B1 FR 2104311 A FR2104311 A FR 2104311A FR 2104311 A FR2104311 A FR 2104311A FR 3122215 B1 FR3122215 B1 FR 3122215B1
Authority
FR
France
Prior art keywords
air flow
exhaust gas
gas catalyst
injecting air
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.)
Active
Application number
FR2104311A
Other languages
French (fr)
Other versions
FR3122215A1 (en
Inventor
Jean Jacques Alliez
Pierre Yves Lecoq
Alain Sague
Daniel Juncker
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
Original Assignee
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 FR2104311A priority Critical patent/FR3122215B1/en
Priority to PCT/FR2022/050535 priority patent/WO2022229532A1/en
Publication of FR3122215A1 publication Critical patent/FR3122215A1/en
Application granted granted Critical
Publication of FR3122215B1 publication Critical patent/FR3122215B1/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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • 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
    • F01N3/24—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 constructional aspects of converting apparatus
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/32—Arrangements for supply of additional air using air pump
    • F01N3/323—Electrically driven air pumps
    • 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
    • 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

Un aspect de l’invention concerne un procédé d’injection d’air dans un catalyseur des gaz d’échappement pour véhicule, ledit véhicule comportant un moteur à combustion interne et un circuit d’injection d’air comportant une pompe agencée pour injecter un débit d’air en amont d’un dispositif de chauffage que comporte ledit catalyseur, ledit procédé comportant les étapes de : caractériser un débit d’air délivré par une pompe pour une tension nominale ;caractériser un débit d’air délivré par ladite pompe pour une tension distincte de ladite tension nominale ;sélectionner ladite tension nominale ou ladite tension distincte correspondant à un débit d’air prédéterminé. Figure 2One aspect of the invention relates to a method of injecting air into an exhaust gas catalyst for a vehicle, said vehicle comprising an internal combustion engine and an air injection circuit comprising a pump arranged to inject an air flow upstream of a heating device that said catalyst comprises, said method comprising the steps of: characterizing an air flow delivered by a pump for a nominal voltage; characterizing an air flow delivered by said pump for a voltage distinct from said nominal voltage; select said nominal voltage or said distinct voltage corresponding to a predetermined air flow. Figure 2

FR2104311A 2021-04-26 2021-04-26 METHOD FOR INJECTING AIR INTO AN EXHAUST GAS CATALYST Active FR3122215B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2104311A FR3122215B1 (en) 2021-04-26 2021-04-26 METHOD FOR INJECTING AIR INTO AN EXHAUST GAS CATALYST
PCT/FR2022/050535 WO2022229532A1 (en) 2021-04-26 2022-03-23 Method for injecting air into an exhaust gas catalytic converter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2104311A FR3122215B1 (en) 2021-04-26 2021-04-26 METHOD FOR INJECTING AIR INTO AN EXHAUST GAS CATALYST
FR2104311 2021-04-26

Publications (2)

Publication Number Publication Date
FR3122215A1 FR3122215A1 (en) 2022-10-28
FR3122215B1 true FR3122215B1 (en) 2024-02-16

Family

ID=76375243

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2104311A Active FR3122215B1 (en) 2021-04-26 2021-04-26 METHOD FOR INJECTING AIR INTO AN EXHAUST GAS CATALYST

Country Status (2)

Country Link
FR (1) FR3122215B1 (en)
WO (1) WO2022229532A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663887A (en) 1970-08-14 1972-05-16 Rca Corp Memory sense amplifier inherently tolerant of large input disturbances
US5493858A (en) * 1992-06-23 1996-02-27 Mitsubishi Denki Kabushiki Kaisha Controlling apparatus for introduction air into exhaust pipe of internal combustion engine
FR2778206B1 (en) * 1998-04-29 2000-12-15 Renault CATALYTIC POT DEVICE
DE102010007072A1 (en) * 2010-02-06 2011-08-11 Volkswagen AG, 38440 Method for operating internal combustion engine with exhaust gas passage, involves arranging catalyst in exhaust gas passage, where secondary air pump conveys secondary air mass flow upstream catalyst in exhaust gas passage
US10578039B2 (en) * 2017-08-25 2020-03-03 Continental Automotive Systems, Inc. Proactive catalyst heating
FR3100566B1 (en) * 2019-09-11 2022-07-22 Renault Sas METHOD FOR TREATMENT OF POLLUTANTS BY THREE-WAY CATALYST WHEN STARTING A COMBUSTION ENGINE

Also Published As

Publication number Publication date
WO2022229532A1 (en) 2022-11-03
FR3122215A1 (en) 2022-10-28

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