FR2447461A1 - Dispositif destine a ameliorer le fonctionnement des systemes catalytiques antipollueurs lorsque l'on utilise de l'essence contenant du plomb - Google Patents

Dispositif destine a ameliorer le fonctionnement des systemes catalytiques antipollueurs lorsque l'on utilise de l'essence contenant du plomb

Info

Publication number
FR2447461A1
FR2447461A1 FR7901634A FR7901634A FR2447461A1 FR 2447461 A1 FR2447461 A1 FR 2447461A1 FR 7901634 A FR7901634 A FR 7901634A FR 7901634 A FR7901634 A FR 7901634A FR 2447461 A1 FR2447461 A1 FR 2447461A1
Authority
FR
France
Prior art keywords
controlling
air supply
additional air
exhaust gas
catalyst deactivation
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.)
Granted
Application number
FR7901634A
Other languages
English (en)
French (fr)
Other versions
FR2447461B1 (US06724976-20040420-M00002.png
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.)
Renault SAS
Original Assignee
Renault 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 Renault SAS filed Critical Renault SAS
Priority to FR7901634A priority Critical patent/FR2447461A1/fr
Publication of FR2447461A1 publication Critical patent/FR2447461A1/fr
Application granted granted Critical
Publication of FR2447461B1 publication Critical patent/FR2447461B1/fr
Granted legal-status Critical Current

Links

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
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F01N3/227—Control of additional air supply only, e.g. using by-passes or variable air pump drives using pneumatically operated valves, e.g. membrane 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
    • 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
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
FR7901634A 1979-01-23 1979-01-23 Dispositif destine a ameliorer le fonctionnement des systemes catalytiques antipollueurs lorsque l'on utilise de l'essence contenant du plomb Granted FR2447461A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7901634A FR2447461A1 (fr) 1979-01-23 1979-01-23 Dispositif destine a ameliorer le fonctionnement des systemes catalytiques antipollueurs lorsque l'on utilise de l'essence contenant du plomb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7901634A FR2447461A1 (fr) 1979-01-23 1979-01-23 Dispositif destine a ameliorer le fonctionnement des systemes catalytiques antipollueurs lorsque l'on utilise de l'essence contenant du plomb

Publications (2)

Publication Number Publication Date
FR2447461A1 true FR2447461A1 (fr) 1980-08-22
FR2447461B1 FR2447461B1 (US06724976-20040420-M00002.png) 1982-06-25

Family

ID=9221077

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7901634A Granted FR2447461A1 (fr) 1979-01-23 1979-01-23 Dispositif destine a ameliorer le fonctionnement des systemes catalytiques antipollueurs lorsque l'on utilise de l'essence contenant du plomb

Country Status (1)

Country Link
FR (1) FR2447461A1 (US06724976-20040420-M00002.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062555A1 (en) * 1981-04-02 1982-10-13 Canadian Fram Limited Pressure control system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849984A (en) * 1972-04-19 1974-11-26 Toyota Motor Co Ltd Member for controlling exhaust gas purifying device
US3921396A (en) * 1973-11-20 1975-11-25 Toyota Motor Co Ltd Exhaust gas purification system
GB1474916A (en) * 1974-10-14 1977-05-25 British Leyland Uk Ltd Catalyst systems and diaphragm operated valves for use in such systems
GB1482990A (en) * 1973-09-04 1977-08-17 Nissan Motor Secondary air supply control device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849984A (en) * 1972-04-19 1974-11-26 Toyota Motor Co Ltd Member for controlling exhaust gas purifying device
GB1482990A (en) * 1973-09-04 1977-08-17 Nissan Motor Secondary air supply control device
US3921396A (en) * 1973-11-20 1975-11-25 Toyota Motor Co Ltd Exhaust gas purification system
GB1474916A (en) * 1974-10-14 1977-05-25 British Leyland Uk Ltd Catalyst systems and diaphragm operated valves for use in such systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062555A1 (en) * 1981-04-02 1982-10-13 Canadian Fram Limited Pressure control system

Also Published As

Publication number Publication date
FR2447461B1 (US06724976-20040420-M00002.png) 1982-06-25

Similar Documents

Publication Publication Date Title
US5043147A (en) Combined muffler and catalytic converter exhaust unit
KR100642701B1 (ko) 향상된 ＮＯｘ 환원을 위한 단계식 환원제 주입
US5586433A (en) Process and apparatus for selective catalyzed no-reduction in oxygen-containing exhaust gases
US3869858A (en) Exhaust gas purifying system for motor vehicles
US3657892A (en) Exhaust gas treatment system
US3943709A (en) Substoichiometric air addition to first stage of dual catalyst system
EP0859132A4 (en) EXHAUST CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
GB1395237A (en) Internal combustion engine exhaust gas purification system
US3739583A (en) Control of nitrogen oxides emission from engines
US3197287A (en) Catalytic converter
GB1461804A (en) Device for detecting the overheating of a catalyst traversed by the exhaust gas of an internal combustion engine
FR2447461A1 (fr) Dispositif destine a ameliorer le fonctionnement des systemes catalytiques antipollueurs lorsque l'on utilise de l'essence contenant du plomb
US3303003A (en) Apparatus for purifying exhaust gases of internal combustion engines
SE9702757L (sv) Anordning och förfarande för katalytisk avgasrening med tillförsel av väte
JPS5368311A (en) Control system for secondary air feed for cleaning exhaust gas of internal combustion engine
WO2000008316A3 (de) REGELUNG EINES NOx-SPEICHER-KATALYSATORS
KR100330783B1 (ko) 자동차용 촉매 시스템
JP2019190425A (ja) 排気浄化装置および車両
KR101619411B1 (ko) 배기가스 정화 장치 제어 방법
JPH06123218A (ja) 排気ガス浄化装置
JP2874472B2 (ja) 排気ガス処理装置
KR100349739B1 (ko) 디젤 차량용 질화산화물 정화 시스템
KR100366255B1 (ko) 엔진 출력 향상을 위한 배기장치
JPS5974321A (ja) 気筒数制御エンジンの排気浄化装置
JP2803530B2 (ja) 排気ガス浄化装置

Legal Events

Date Code Title Description
ST Notification of lapse