JPS5599323A - Matrix for catalytic reactor for purifying waste gas in internal combustion engine - Google Patents

Matrix for catalytic reactor for purifying waste gas in internal combustion engine

Info

Publication number
JPS5599323A
JPS5599323A JP466780A JP466780A JPS5599323A JP S5599323 A JPS5599323 A JP S5599323A JP 466780 A JP466780 A JP 466780A JP 466780 A JP466780 A JP 466780A JP S5599323 A JPS5599323 A JP S5599323A
Authority
JP
Japan
Prior art keywords
matrix
combustion engine
internal combustion
waste gas
catalytic reactor
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
JP466780A
Other languages
English (en)
Japanese (ja)
Other versions
JPS624531B2 (US06653308-20031125-C00199.png
Inventor
Nonnenman Manfureeto
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of JPS5599323A publication Critical patent/JPS5599323A/ja
Publication of JPS624531B2 publication Critical patent/JPS624531B2/ja
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
    • F01N3/24—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
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • F01N2330/04—Methods of manufacturing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/1241—Nonplanar uniform thickness or nonlinear uniform diameter [e.g., L-shape]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
JP466780A 1979-01-25 1980-01-21 Matrix for catalytic reactor for purifying waste gas in internal combustion engine Granted JPS5599323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2902779A DE2902779C2 (de) 1979-01-25 1979-01-25 Matrix für einen katalytischen Reaktor zur Abgasreinigung bei Brennkraftmaschinen

Publications (2)

Publication Number Publication Date
JPS5599323A true JPS5599323A (en) 1980-07-29
JPS624531B2 JPS624531B2 (US06653308-20031125-C00199.png) 1987-01-30

Family

ID=6061347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP466780A Granted JPS5599323A (en) 1979-01-25 1980-01-21 Matrix for catalytic reactor for purifying waste gas in internal combustion engine

Country Status (6)

Country Link
US (1) US4273681A (US06653308-20031125-C00199.png)
JP (1) JPS5599323A (US06653308-20031125-C00199.png)
DE (1) DE2902779C2 (US06653308-20031125-C00199.png)
ES (1) ES254336Y (US06653308-20031125-C00199.png)
FR (1) FR2447462A2 (US06653308-20031125-C00199.png)
GB (1) GB2040179B (US06653308-20031125-C00199.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6266213U (US06653308-20031125-C00199.png) * 1985-10-17 1987-04-24
CN102889110A (zh) * 2012-10-09 2013-01-23 浙江达峰汽车技术有限公司 机动车尾气催化净化器用新型载体

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331969A1 (de) * 1983-09-05 1985-04-25 INTERATOM GmbH, 5060 Bergisch Gladbach Metalltraegergehaeuse fuer abgaskatalysatoren mit zusatzrillen
DE3341868A1 (de) * 1983-11-19 1985-05-30 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Matrix fuer einen katalytischen reaktor
DE3401115A1 (de) * 1984-01-14 1985-07-18 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung eines glyoxylsaeureesters
DE3415460A1 (de) * 1984-04-25 1985-10-31 INTERATOM GmbH, 5060 Bergisch Gladbach Hochtemperaturfester abgaskatalysator-traegerkoerper aus stahlblechen mit hohem aluminiumanteil und verfahren zu seiner herstellung
DE3530893A1 (de) * 1985-08-29 1987-03-05 Interatom Wachstumskompensierender metallischer abgaskatalysatortraegerkoerper und blech zu seiner herstellung
DE3534904A1 (de) * 1985-09-30 1987-04-02 Interatom Aus blechen gewickelter oder geschichteter metallischer katalysatortraegerkoerper mit doppel- oder mehrfachwellenstruktur
DE3543011A1 (de) * 1985-12-05 1987-06-11 Sueddeutsche Kuehler Behr Matrix fuer einen katalysator
DE3760428D1 (en) * 1986-05-12 1989-09-14 Interatom Metallic honeycomb body, particularly a catalyst carrier, provided with a supporting wall, and its manufacturing process
DE3713209A1 (de) * 1987-04-18 1988-11-03 Thyssen Edelstahlwerke Ag Wabenkoerper zur reinigung der abgase von verbrennungskraftmaschinen
JP2506909Y2 (ja) * 1987-12-28 1996-08-14 臼井国際産業 株式会社 排気ガス浄化用触媒の金属製担持母体
DE8801788U1 (de) * 1988-02-11 1989-06-15 Emitec Gesellschaft für Emissionstechnologie mbH, 53797 Lohmar Katalysator-Trägerkörper mit S-förmigen, teilweise verstärkten Blechlagen
US4942020A (en) * 1988-06-27 1990-07-17 W.R. Grace & Co.-Conn. Converter for removing pollutants from a gas stream
DE3844348A1 (de) * 1988-12-30 1990-07-05 Sueddeutsche Kuehler Behr Traegerkoerper fuer einen katalytischen reaktor zur abgasreinigung
DE8900467U1 (de) * 1989-01-17 1990-05-17 Emitec Gesellschaft für Emissionstechnologie mbH, 5204 Lohmar Metallischer Wabenkörper, vorzugsweise Katalysator-Trägerkörper mit Mikrostrukturen zur Strömungsdurchmischung
DE8901773U1 (de) * 1989-02-15 1990-03-22 Siemens AG, 1000 Berlin und 8000 München Katalysator-Formkörper mit Abstandshaltern
US5051294A (en) * 1989-05-15 1991-09-24 General Motors Corporation Catalytic converter substrate and assembly
DE8909128U1 (de) * 1989-07-27 1990-11-29 Emitec Gesellschaft für Emissionstechnologie mbH, 5204 Lohmar Wabenkörper mit internen Anströmkanten, insbesondere Katalysatorkörper für Kraftfahrzeuge
JPH03101841A (ja) * 1989-09-14 1991-04-26 Nippon Steel Corp 自動車排ガス浄化触媒用メタル担体の製造方法
RU2066376C1 (ru) * 1989-12-22 1996-09-10 Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх Трубопровод для выхлопных газов двигателя внутреннего сгорания
DE4024942A1 (de) * 1990-08-06 1992-02-13 Emitec Emissionstechnologie Monolithischer metallischer wabenkoerper mit variierender kanalzahl
JPH04136412A (ja) * 1990-09-28 1992-05-11 Nissan Motor Co Ltd ハニカム触媒コンバータの加熱装置
US5170624A (en) * 1991-04-05 1992-12-15 W. R. Grace & Co.-Conn. Composite catalytic converter
US5153167A (en) * 1991-05-22 1992-10-06 Nippon Steel Corporation Honeycomb catalyst carrier
JP3336035B2 (ja) * 1992-04-27 2002-10-21 臼井国際産業株式会社 金属製ハニカム担体
BR9306740A (pt) * 1992-07-14 1998-12-08 Emitec Emissionstechnologie Corpo de colmeia metálico de camadas de chapas entrelaçadas e processo para sua fabricação
FR2695326B1 (fr) * 1992-09-08 1994-12-02 Strasbourg Ecole Nale Sup Arts Matrice métallique de réacteur catalytique pour le traitement des gaz de combustion.
US5546746A (en) * 1993-02-04 1996-08-20 W. R. Grace & Co.-Conn. Core element useful in a combined electrically heatable and light-off converter
EP0677649B1 (en) * 1994-04-14 1997-08-27 W.R. Grace & Co.-Conn. Core element useful in a combined electrically heatable and light-off-converter
JPH07293232A (ja) * 1994-04-21 1995-11-07 Nippon Soken Inc 排ガス浄化用金属製触媒担体
JPH10506053A (ja) * 1994-09-26 1998-06-16 エミテク・ゲゼルシャフト・フュール・エミシオーンテクノロギー・ミット・ベシュレンクテル・ハフツング ディスク状に構築されたハニカム状の本体、特に触媒キャリア本体
US5655961A (en) * 1994-10-12 1997-08-12 Acres Gaming, Inc. Method for operating networked gaming devices
US6045628A (en) * 1996-04-30 2000-04-04 American Scientific Materials Technologies, L.P. Thin-walled monolithic metal oxide structures made from metals, and methods for manufacturing such structures
US5814164A (en) * 1994-11-09 1998-09-29 American Scientific Materials Technologies L.P. Thin-walled, monolithic iron oxide structures made from steels, and methods for manufacturing such structures
JPH08177473A (ja) * 1994-12-22 1996-07-09 Nippon Soken Inc 排ガス浄化装置
US5692347A (en) * 1996-08-05 1997-12-02 Hulek; Anton J. Corrugated metal sheet
US5735158A (en) * 1996-10-10 1998-04-07 Engelhard Corporation Method and apparatus for skew corrugating foil
JP3610720B2 (ja) * 1997-03-03 2005-01-19 日産自動車株式会社 メタル触媒担体の構造
DE19823469A1 (de) * 1998-05-26 1999-12-02 Emitec Emissionstechnologie Monolithischer metallischer Wabenkörper mit variierender Kanalzahl
US6461562B1 (en) 1999-02-17 2002-10-08 American Scientific Materials Technologies, Lp Methods of making sintered metal oxide articles
JP3932798B2 (ja) * 2000-11-15 2007-06-20 日産自動車株式会社 メタル担体
US7083860B2 (en) 2002-08-16 2006-08-01 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Metallic honeycomb body having at least partially perforated sheet-metal layers
DE10239205A1 (de) 2002-08-21 2004-03-04 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren und Vorrichtung zur Herstellung von Wabenkörpern und Wabenkörper
US20040071610A1 (en) * 2002-10-15 2004-04-15 Brenner Annette M. Customized flow path substrate
JP4226884B2 (ja) * 2002-12-11 2009-02-18 カルソニックカンセイ株式会社 金属製触媒担体
DE10300408A1 (de) * 2003-01-09 2004-07-22 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren zur Behandlung eines Fluids und Wabenkörper
WO2004063540A1 (de) 2003-01-14 2004-07-29 Emitec Gesellschaft Für Emissionstechnologie Mbh Platzsparende abgasnachbehandlungseinheit mit ineinanderliegenden hin- und rückströmbereichen bei gleichseitigem gasein- und -austritt
DE10311235A1 (de) 2003-03-14 2004-10-14 Emitec Gesellschaft Für Emissionstechnologie Mbh Mehrsträngiges Abgassystem mit mindestens einem Messfühler, Wabenkörper mit einer Ausnehmung für mindestens einen Messfühler und Verfahren zum Betrieb eines mehrsträngigen Abgassystems
DE10329002A1 (de) * 2003-06-27 2005-01-20 Emitec Gesellschaft Für Emissionstechnologie Mbh Aufbau einer metallischen Wabenstruktur und Verfahren zu dessen Herstellung
DE10329000A1 (de) * 2003-06-27 2005-01-27 Emitec Gesellschaft Für Emissionstechnologie Mbh Abgasnachbehandlungsanlage mit einem Gegenstromgehäuse, sowie entsprechendes Verfahren zur Abgasnachbehandlung
DE10337265A1 (de) 2003-08-13 2005-03-10 Emitec Emissionstechnologie Rollnahtgeschweißter Körper zur Abgasbehandlung
DE10338360A1 (de) 2003-08-21 2005-03-31 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren und Vorrichtung zur Herstellung eines Wabenkörpers
DE102004058268B4 (de) * 2003-12-11 2016-05-19 Continental Automotive Gmbh Verstärktes Gehäuse einer Abgasreinigungskomponente
DE102004001418A1 (de) 2004-01-09 2005-07-28 Emitec Gesellschaft Für Emissionstechnologie Mbh Fluid-Umformung von Metallblechen
DE102004021037A1 (de) * 2004-04-29 2005-11-24 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren zur Herstellung einer hochtemperaturfesten Struktur
DE102004021038A1 (de) 2004-04-29 2005-11-24 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren zur Herstellung einer hochtemperaturfesten Struktur
DE102004058285A1 (de) * 2004-12-02 2006-06-08 Emitec Gesellschaft Für Emissionstechnologie Mbh Verbindungsmaterial zum Positionieren von Lotmaterial, Verfahren zur Herstellung eines Wabenkörpers und entsprechender Wabenkörper
US7655194B2 (en) * 2005-01-18 2010-02-02 Dcl International Inc. Catalyst substrate support
DE102005007403A1 (de) 2005-02-18 2006-08-31 Emitec Gesellschaft Für Emissionstechnologie Mbh Wabenkörper mit internen Kavernen
DE102005009585A1 (de) 2005-02-28 2006-08-31 Emitec Gesellschaft Für Emissionstechnologie Mbh Wabenkörper mit zerklüfteten Stirnseiten
EP1871997A4 (en) * 2005-04-14 2010-11-10 Catacel Corp CARTRIDGES FOR CATALYTIC REACTOR
US7565743B2 (en) * 2005-04-14 2009-07-28 Catacel Corp. Method for insertion and removal of a catalytic reactor cartridge
US7472936B2 (en) * 2005-04-14 2009-01-06 Catacel Corp. Tool for insertion and removal of a catalytic reactor cartridge
US20060230613A1 (en) * 2005-04-14 2006-10-19 Catacel Corporation Catalytic reactor cartridge
DE102005038572A1 (de) * 2005-08-12 2007-02-15 Emitec Gesellschaft Für Emissionstechnologie Mbh Vorrichtung und Verfahren zur Herstellung metallischer Wabenkörper mit mindestens einem Formsegment
DE102011121061B4 (de) * 2011-12-14 2016-06-30 Oberland Mangold Gmbh Matrix und Verfahren zu ihrer Herstellung
CN103628957A (zh) * 2013-06-01 2014-03-12 黄小春 一种孔道交错型高性能金属蜂窝载体
CN203321645U (zh) * 2013-06-01 2013-12-04 黄小春 一种孔道交错型高性能金属蜂窝载体
DE102016209058A1 (de) 2016-05-25 2017-11-30 Continental Automotive Gmbh Wabenkörper für die Abgasnachbehandlung
DE102019213025A1 (de) * 2019-08-29 2021-03-04 Vitesco Technologies GmbH Katalysator zur Abgasnachbehandlung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208131A (en) * 1961-03-22 1965-09-28 Universal Oil Prod Co Rigid catalytic metallic unit and method for the production thereof
US3849076A (en) * 1972-06-21 1974-11-19 V Gryaznov Catalytic reactor for carrying out conjugate chemical reactions
FR2196008A5 (US06653308-20031125-C00199.png) * 1972-08-08 1974-03-08 Peugeot & Renault
DE2302746A1 (de) * 1973-01-20 1974-07-25 Sueddeutsche Kuehler Behr Traegermatrix fuer einen katalytischen reaktor zur abgasreinigung bei brennkraftmaschinen, insb. ottomotoren von kraftfahrzeugen, sowie ein herstellungsverfahren
FR2225203B1 (US06653308-20031125-C00199.png) * 1973-04-16 1978-01-20 Du Pont
GB1491198A (en) * 1974-10-25 1977-11-09 Atomic Energy Authority Uk Catalyst bodies and methods of manufacturing such bodies
DE2733640C3 (de) * 1977-07-26 1981-04-30 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Matrix für einen katalytischen Reaktor zur Abgasreinigung bei Brennkraftmaschinen
US4190559A (en) * 1978-10-13 1980-02-26 Oxy-Catalyst, Inc. Metal catalyst support having rectangular cross-section

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6266213U (US06653308-20031125-C00199.png) * 1985-10-17 1987-04-24
JPH0426648Y2 (US06653308-20031125-C00199.png) * 1985-10-17 1992-06-26
CN102889110A (zh) * 2012-10-09 2013-01-23 浙江达峰汽车技术有限公司 机动车尾气催化净化器用新型载体

Also Published As

Publication number Publication date
DE2902779C2 (de) 1985-09-26
ES254336Y (es) 1982-04-01
FR2447462A2 (fr) 1980-08-22
US4273681A (en) 1981-06-16
JPS624531B2 (US06653308-20031125-C00199.png) 1987-01-30
GB2040179A (en) 1980-08-28
DE2902779A1 (de) 1980-07-31
FR2447462B2 (US06653308-20031125-C00199.png) 1984-06-29
GB2040179B (en) 1983-08-17
ES254336U (es) 1981-10-01

Similar Documents

Publication Publication Date Title
JPS5599323A (en) Matrix for catalytic reactor for purifying waste gas in internal combustion engine
JPS5425321A (en) Carrying matrix for catalytic reactor for purifying exhaust gas in internal combustion engineeespecially* ottoomotorrof automobile
JPS55157327A (en) Catalyst for purifying waste gas of internal combustion engine and its preparation
GB2048104B (en) Catalytic converters for internal combustion engine exhaust gases
GB2128894B (en) Catalytic exhaust converter for internal combustion engines
DE3569481D1 (en) Catalyst for purifying diesel engine exhaust gases
GB2048706B (en) Catalytic converters for internal combustion engine exhaust gases
GB2040182B (en) Device for purifying exhaust gas of diesel engine
AU8110582A (en) Catalyst for treating internal combustion exhaust gases
GB2051624B (en) Method of producing a suporting matrix for a catalytic reactor for an internal combustion engine exhaust system
GB2073042B (en) Device for catalytically purifying exhaust gases from a combustion engine
GB2099919B (en) Catalytic combustion in internal combustion engines
JPS5656230A (en) Catalyst for treating exhaust gas from internal combustion engine and its method
JPS5685514A (en) Manufacture of supporting matrix for catalyse reactor for purifying exhaust gas of internal combustion engine
DE3268286D1 (en) Catalyst for the combustion of noxious substances in waste gases of combustion engines operating on alcohol, process for the preparation of the catalyst and its use
GB2057563B (en) Catalytic combustion engines
GB2048105B (en) Catalytic converters for internal combustion engine exhaust gases
JPS54159522A (en) Waste gas converter for internal combustion engine
DE3663563D1 (en) Support matrix, particularly for a catalytic reactor for purifying exhaust gases of internal-combustion engines
GB1540420A (en) Exhaust gas purifying system in an internal combustion engine
JPS5698518A (en) Diesel engine exhaust system
GB2047559B (en) Catalytic converters for internal combustion engine exhaust gases
GB2047560B (en) Catalytic converters for internal combustion engine exhaust gases
JPS5681253A (en) Purifying facility for air introduced into internal combustion engine
GB2055303B (en) Catalytic conversion of compounds contained in exhaust gases from an internal combustion engine