DE69623733T2 - Verfahren zur Feststellung einer Leistungsverminderung eines Katalysators zur Abgasreinigung - Google Patents

Verfahren zur Feststellung einer Leistungsverminderung eines Katalysators zur Abgasreinigung

Info

Publication number
DE69623733T2
DE69623733T2 DE69623733T DE69623733T DE69623733T2 DE 69623733 T2 DE69623733 T2 DE 69623733T2 DE 69623733 T DE69623733 T DE 69623733T DE 69623733 T DE69623733 T DE 69623733T DE 69623733 T2 DE69623733 T2 DE 69623733T2
Authority
DE
Germany
Prior art keywords
reduction
determining
performance
exhaust gas
gas purification
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
DE69623733T
Other languages
English (en)
Other versions
DE69623733D1 (de
Inventor
Nobuhide Kato
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
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 NGK Insulators Ltd filed Critical NGK Insulators Ltd
Application granted granted Critical
Publication of DE69623733D1 publication Critical patent/DE69623733D1/de
Publication of DE69623733T2 publication Critical patent/DE69623733T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
    • G01N25/28—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly
    • G01N25/30—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures the rise in temperature of the gases resulting from combustion being measured directly using electric temperature-responsive elements
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • 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
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/02—Catalytic activity of 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
    • Y02T10/40—Engine management systems
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/06—Temperature control
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/09—Reaction techniques
    • Y10S423/13—Catalyst contact
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S502/00—Catalyst, solid sorbent, or support therefor: product or process of making
    • Y10S502/514—Process applicable either to preparing or to regenerating or to rehabilitating catalyst or sorbent
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S502/00—Catalyst, solid sorbent, or support therefor: product or process of making
    • Y10S502/515—Specific contaminant removal

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
DE69623733T 1995-12-15 1996-12-12 Verfahren zur Feststellung einer Leistungsverminderung eines Katalysators zur Abgasreinigung Expired - Fee Related DE69623733T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32695995A JP3708606B2 (ja) 1995-12-15 1995-12-15 排気ガス浄化触媒の劣化検知方法

Publications (2)

Publication Number Publication Date
DE69623733D1 DE69623733D1 (de) 2002-10-24
DE69623733T2 true DE69623733T2 (de) 2003-06-05

Family

ID=18193702

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69623733T Expired - Fee Related DE69623733T2 (de) 1995-12-15 1996-12-12 Verfahren zur Feststellung einer Leistungsverminderung eines Katalysators zur Abgasreinigung

Country Status (4)

Country Link
US (1) US5854079A (de)
EP (1) EP0779416B1 (de)
JP (1) JP3708606B2 (de)
DE (1) DE69623733T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3374782B2 (ja) * 1999-04-28 2003-02-10 トヨタ自動車株式会社 内燃機関の触媒劣化検出装置
IT1311110B1 (it) * 1999-10-26 2002-02-28 Magneti Marelli Spa Metodo per la diagnosi di un sistema di abbattimento dei gas discarico per un motore a combustione interna.
JP4122849B2 (ja) 2001-06-22 2008-07-23 株式会社デンソー 触媒劣化検出装置
DE102007042227A1 (de) * 2007-09-05 2009-03-12 Robert Bosch Gmbh Verfahren zur Bestimmung einer Abgastemperatur einer Brennkraftmaschine
EP2216522A1 (de) * 2009-02-05 2010-08-11 Delphi Technologies Holding S.à.r.l. On-Board-Fahrzeugdiagnose eines Oxidationskatalysators
GB2467970A (en) * 2009-02-24 2010-08-25 Gm Global Tech Operations Inc Estimating the heat exchange rate of a diesel oxidation catalytic converter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3650733T2 (de) * 1985-09-11 2000-05-04 Btg Int Ltd Pharmazeutische Zubereitungen und medizinische Verwendungen von Dioxopiperidinderivaten, insbesondere als Verstärker der Immunantwort sowie als antivirale und antibakterielle Wirkstoffe
JPS6261919U (de) 1985-10-07 1987-04-17
JP2534682B2 (ja) * 1986-09-25 1996-09-18 エヌティエヌ 株式会社 直線移動用キヤリツジの製造方法
DE3710268A1 (de) * 1987-03-28 1988-10-06 Phywe Systeme Gmbh Verfahren zur funktionsueberwachung von katalysatoren
US5485371A (en) * 1990-02-14 1996-01-16 Fuji Photo Film Co., Ltd. Method for forming energy subtraction radiation images, and method and apparatus for smoothing radiation images
GB9003316D0 (en) * 1990-02-14 1990-04-11 Lucas Ind Plc Monitoring of operation of catalytic converter
EP0565142B1 (de) * 1990-03-19 1996-02-28 Emitec Gesellschaft für Emissionstechnologie mbH Katalysator mit mindestens einem Temperaturfühler
JPH07229419A (ja) * 1994-02-18 1995-08-29 Toyota Motor Corp 内燃機関の触媒暖機制御装置

Also Published As

Publication number Publication date
EP0779416B1 (de) 2002-09-18
US5854079A (en) 1998-12-29
DE69623733D1 (de) 2002-10-24
JPH09166015A (ja) 1997-06-24
JP3708606B2 (ja) 2005-10-19
EP0779416A1 (de) 1997-06-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee