IT1054305B - Dispositivo per depurare i gas di scarico in motori a combustione interna con strati catalitici di sposti in serie - Google Patents

Dispositivo per depurare i gas di scarico in motori a combustione interna con strati catalitici di sposti in serie

Info

Publication number
IT1054305B
IT1054305B IT7526877A IT2687775A IT1054305B IT 1054305 B IT1054305 B IT 1054305B IT 7526877 A IT7526877 A IT 7526877A IT 2687775 A IT2687775 A IT 2687775A IT 1054305 B IT1054305 B IT 1054305B
Authority
IT
Italy
Prior art keywords
purify
series
moved
internal combustion
exhaust gases
Prior art date
Application number
IT7526877A
Other languages
English (en)
Original Assignee
Matsushita Electric Industrial Co 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
Priority claimed from JP49101516A external-priority patent/JPS5129620A/ja
Priority claimed from JP10625174U external-priority patent/JPS5133609U/ja
Priority claimed from JP49147448A external-priority patent/JPS5172823A/ja
Priority claimed from JP1975074986U external-priority patent/JPS5528816Y2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of IT1054305B publication Critical patent/IT1054305B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9463—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick
    • B01D53/9468—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick in different layers
    • 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
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • 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
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent 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
    • F01N3/24—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
    • 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
    • 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
    • F01N3/2835—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support fibrous
    • 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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/285—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for fibrous supports, e.g. held in place by screens
    • 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
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/12—Metallic wire mesh fabric or knitting
    • 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
    • F01N2330/14—Sintered material
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)
IT7526877A 1974-09-03 1975-09-03 Dispositivo per depurare i gas di scarico in motori a combustione interna con strati catalitici di sposti in serie IT1054305B (it)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP49101516A JPS5129620A (en) 1974-09-03 1974-09-03 Nainenkikanyoshokubaishikijokasochi
JP10625174U JPS5133609U (it) 1974-09-03 1974-09-03
JP49147448A JPS5172823A (en) 1974-12-20 1974-12-20 Shokubaishikihaikigasujokasochi
JP1975074986U JPS5528816Y2 (it) 1975-06-02 1975-06-02

Publications (1)

Publication Number Publication Date
IT1054305B true IT1054305B (it) 1981-11-10

Family

ID=27465767

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7526877A IT1054305B (it) 1974-09-03 1975-09-03 Dispositivo per depurare i gas di scarico in motori a combustione interna con strati catalitici di sposti in serie

Country Status (6)

Country Link
US (1) US4175107A (it)
CA (1) CA1055845A (it)
DE (1) DE2539964A1 (it)
FR (1) FR2284027A1 (it)
GB (1) GB1519343A (it)
IT (1) IT1054305B (it)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101026A1 (de) * 1981-01-15 1982-08-26 Engelhard Kali-Chemie Autocat Gmbh, 3000 Hannover Bifunktionaler filter zur behandlung von abgasen
US4584177A (en) * 1982-05-24 1986-04-22 Fernbach Erwin A Catalytic unit for gas phase catalysis, more especially for use with wood- and other solid fuel-burning stoves
DE3228325A1 (de) * 1982-07-29 1984-02-02 Fa. J. Eberspächer, 7300 Esslingen Filter- und nachverbrennungseinrichtung fuer abgase
EP0318462B1 (en) * 1984-08-13 1991-10-23 Arvin Industries, Inc. Exhaust processor
US4625511A (en) * 1984-08-13 1986-12-02 Arvin Industries, Inc. Exhaust processor
USRE33118E (en) * 1984-08-13 1989-11-28 Arvin Industries, Inc. Exhaust processor
US4600562A (en) * 1984-12-24 1986-07-15 Texaco Inc. Method and apparatus for filtering engine exhaust gas
EP0331698B1 (en) * 1987-09-04 1992-05-13 Orbital Engine Company (Australia) Pty. Ltd. Exhaust gas treatment for a two stroke engine
USRE37230E1 (en) * 1987-10-26 2001-06-19 Orbital Engine Company (Australia) Proprietary Limited Two stroke cycle internal combustion engines
CA1336413C (en) * 1987-10-26 1995-07-25 Mark Lear Two stroke cycle internal combustion engines
IT1219270B (it) * 1988-05-06 1990-05-03 Enea Dispositivo per la riduzione dell'inquinamento atmosferico da gas di scarico di motori a combustione interna
US4961314A (en) * 1988-08-15 1990-10-09 Arvin Industries, Inc. Tuned exhaust processor assembly
US5009065A (en) * 1988-08-15 1991-04-23 Arvin Industries, Inc. Tuned exhaust processor assembly
US5048287A (en) * 1988-08-15 1991-09-17 Arvin Industries, Inc. Tuned exhaust processor assembly
US5016438A (en) * 1989-09-25 1991-05-21 Harris International Sales Corporation Emission control apparatus
GB2236690A (en) * 1989-09-28 1991-04-17 * Rover Group Limited A catalytic converter
DE3940747C1 (it) * 1989-12-09 1990-07-12 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
ES2025410A6 (es) * 1990-06-28 1992-03-16 Gamez Anguiano Eugenio Mejoras en los tubos de escape de vehiculos.
GB2246715A (en) * 1990-08-11 1992-02-12 Ford Motor Co Reducing light-off time in a catalytic converter
FR2667649B1 (fr) * 1990-10-09 1993-01-22 Peugeot Dispositif d'insufflation d'air dans le circuit d'echappement.
GB2254883A (en) * 1991-04-15 1992-10-21 Ford Motor Co I.c. engine exhaust system.
FI921889A7 (fi) * 1991-05-02 1992-11-03 Scambia Ind Dev Ag Katalysator foer katalytisk behandling av avgaser
JPH07504731A (ja) * 1992-03-17 1995-05-25 イー・アイ・デュポン・ドゥ・ヌムール・アンド・カンパニー ラジアルフロー型排気触媒コンバータ
US5635141A (en) * 1992-03-17 1997-06-03 E. I. Du Pont De Nemours And Company Radial flow exhaust catalytic converter
FR2698909B1 (fr) * 1992-12-04 1994-12-30 Renault Dispositif d'échappement pour moteur à combustion interne.
JPH07132212A (ja) * 1993-09-16 1995-05-23 Toyota Central Res & Dev Lab Inc 排気ガス浄化方法及びその触媒コンバータ
JP3237611B2 (ja) 1997-11-11 2001-12-10 トヨタ自動車株式会社 内燃機関の排気浄化装置
US6577828B1 (en) * 1999-12-02 2003-06-10 Xerox Corporation Ozone catalytic converter unit of optimal design
GB0014620D0 (en) * 2000-06-16 2000-08-09 Johnson Matthey Plc Reactor
DE10058580B4 (de) * 2000-11-18 2008-06-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Nachbehandlung von Verbrennungskraftmaschinenabgasen
JP4463437B2 (ja) * 2001-01-31 2010-05-19 本田技研工業株式会社 一酸化炭素選択酸化除去装置および一酸化炭素選択酸化除去方法
RU2201511C2 (ru) * 2001-05-25 2003-03-27 Уральский государственный университет путей сообщения Каталитический нейтрализатор отработавших газов двигателей внутреннего сгорания
US20030039595A1 (en) * 2001-08-24 2003-02-27 Geise C. Joseph Modular exhaust treatment system
JP2003155926A (ja) * 2001-11-21 2003-05-30 Cataler Corp 排気ガス浄化装置
EP1340890A1 (en) * 2002-02-28 2003-09-03 Luigi Pellegrino A device for reducing the atmospheric pollution due to exhaust gas
US7799108B2 (en) * 2005-12-16 2010-09-21 Cummins Filtration Ip, Inc. Volume-efficient filter
GR1005756B (el) 2006-09-20 2007-12-20 (������� 30%) ��������� Διαταξη επεξεργασιας αεριων
WO2009090447A1 (en) * 2008-01-16 2009-07-23 E.T.M. International Limited Device designed to reduce atmospheric pollution from exhaust gases
CN103429866B (zh) * 2010-12-06 2018-04-24 格林环境有限公司 用于提高燃料效率的系统及方法
US9403157B2 (en) * 2013-04-29 2016-08-02 Ford Global Technologies, Llc Three-way catalyst comprising mixture of nickel and copper
SE538969C2 (sv) * 2013-10-29 2017-03-07 Scania Cv Ab Ventilarrangemang för att reglera avgasflödet genom en oxidationskatalysator
WO2019195406A1 (en) 2018-04-04 2019-10-10 Unifrax | Llc Activated porous fibers and products including same
US20210379216A1 (en) * 2020-06-05 2021-12-09 James H. Bushong, Jr. Apparatus and methods for infectious virus mitigation

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US2956865A (en) * 1958-02-03 1960-10-18 John E Morris Exhaust gas purifier
US3086839A (en) * 1960-03-30 1963-04-23 Universal Oil Prod Co Method for multiple zone treating of waste gas streams
US3166895A (en) * 1960-06-10 1965-01-26 Owens Corning Fiberglass Corp Catalytic muffling system for reducing contaminants in exhaust gases
US3050935A (en) * 1961-01-05 1962-08-28 Socony Mobil Oil Co Inc Apparatus for catalytically treating internal combustion engine exhaust gases
US3110300A (en) * 1961-04-26 1963-11-12 Universal Oil Prod Co Catalytic gas oxidizing and fluid heating apparatus
US3297400A (en) * 1962-09-11 1967-01-10 Mobil Oil Corp Catalytic purification of exhaust gases
US3180712A (en) * 1962-12-26 1965-04-27 Universal Oil Prod Co Two-stage converter-muffler
US3362783A (en) * 1963-12-23 1968-01-09 Texaco Inc Treatment of exhaust gases
US3811845A (en) * 1970-07-30 1974-05-21 Matsushita Electric Industrial Co Ltd Vehicle exhaust control equipment
US3712030A (en) * 1970-09-14 1973-01-23 J Priest Exhaust depurator
US3755534A (en) * 1971-08-12 1973-08-28 Grace W R & Co Catalytic control of auto exhaust emissions
US3791143A (en) * 1971-11-10 1974-02-12 Engelhard Min & Chem Process and apparatus
US3879944A (en) * 1974-03-20 1975-04-29 Gen Motors Corp Catalytic converter

Also Published As

Publication number Publication date
FR2284027B1 (it) 1980-04-18
GB1519343A (en) 1978-07-26
FR2284027A1 (fr) 1976-04-02
CA1055845A (en) 1979-06-05
US4175107A (en) 1979-11-20
DE2539964A1 (de) 1976-03-18

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