WO1999013204A3 - Method of manufacturing catalytic converter - Google Patents

Method of manufacturing catalytic converter Download PDF

Info

Publication number
WO1999013204A3
WO1999013204A3 PCT/US1998/018033 US9818033W WO9913204A3 WO 1999013204 A3 WO1999013204 A3 WO 1999013204A3 US 9818033 W US9818033 W US 9818033W WO 9913204 A3 WO9913204 A3 WO 9913204A3
Authority
WO
WIPO (PCT)
Prior art keywords
mat
substrate
metal shell
optimized
supporting
Prior art date
Application number
PCT/US1998/018033
Other languages
French (fr)
Other versions
WO1999013204A2 (en
Inventor
Paul S Schmitt
Original Assignee
Corning Inc
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 Corning Inc filed Critical Corning Inc
Priority to JP2000510969A priority Critical patent/JP2003526034A/en
Priority to EP98941105A priority patent/EP1549416A4/en
Publication of WO1999013204A2 publication Critical patent/WO1999013204A2/en
Publication of WO1999013204A3 publication Critical patent/WO1999013204A3/en

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
    • 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
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and 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
    • F01N3/24—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
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F01N3/2857—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets being at least partially made of intumescent material, e.g. unexpanded vermiculite
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/02—Fitting monolithic blocks into the housing
    • 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
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49345—Catalytic device making
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49893—Peripheral joining of opposed mirror image parts to form a hollow body
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49934—Inward deformation of aperture or hollow body wall by axially applying force

Abstract

A method of manufacturing a catalytic converter (10) for purifying exhaust gases from an internal combustion engine wherein the converter includes monolithic ceramic substrate (14) surrounded by a supporting mat. The method includes the steps of: wrapping the substrate (14) in a sufficient amount of supporting mat material and inserting the wrapped substrate into the metal shell (12); forming a cylindrical metal shell having an inner surface exhibiting substantially the same curvature as the wrapped substrate; compressively closing the metal shell around the wrapped substrate to an optimized mat density range thereby resulting in the supporting mat exhibiting a substantially uniform and maximum safe compressive stress on the substrate; and, securing together metal shell to provide a gas tight seal and to hold the compressive stress. The optimized mat density range determined by plotting the mat density-mat holding pressure relationship and the mat density-retained cyclic strength ratio relationship of the supporting mat material on a common graph and selecting an optimized range on the mat density-mat holding pressure, and thereafter obtaining the corresponding optimized mat density range.
PCT/US1998/018033 1997-09-08 1998-08-31 Method of manufacturing catalytic converter WO1999013204A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000510969A JP2003526034A (en) 1997-09-08 1998-08-31 Method of manufacturing catalytic converter for use in internal combustion engine
EP98941105A EP1549416A4 (en) 1997-09-08 1998-08-31 Method of making a catalytic converter for use in an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5838697P 1997-09-08 1997-09-08
US60/058,386 1997-09-08

Publications (2)

Publication Number Publication Date
WO1999013204A2 WO1999013204A2 (en) 1999-03-18
WO1999013204A3 true WO1999013204A3 (en) 2005-05-12

Family

ID=22016491

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/018033 WO1999013204A2 (en) 1997-09-08 1998-08-31 Method of manufacturing catalytic converter

Country Status (5)

Country Link
US (1) US6101714A (en)
EP (1) EP1549416A4 (en)
JP (1) JP2003526034A (en)
CN (1) CN101426563A (en)
WO (1) WO1999013204A2 (en)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3370940B2 (en) * 1998-11-24 2003-01-27 株式会社ユタカ技研 Exhaust converter carrier holding mat
US7323145B2 (en) * 2002-03-26 2008-01-29 Evolution Industries, Inc. Automotive exhaust component and method of manufacture
US7169365B2 (en) * 2002-03-26 2007-01-30 Evolution Industries, Inc. Automotive exhaust component and method of manufacture
US7685714B2 (en) 2003-03-18 2010-03-30 Tursky John M Automotive exhaust component and process of manufacture
JP4982363B2 (en) * 2004-06-29 2012-07-25 ユニフラックス ワン リミテッド ライアビリティ カンパニー Exhaust gas treatment apparatus and method for manufacturing the same
US20060156794A1 (en) * 2004-12-15 2006-07-20 Horn Tobin L Apparatus and method for measuring gap bulk density of a catalytic converter support mat
CN100584481C (en) * 2005-01-12 2010-01-27 田纳科汽车营运公司 Post calibration catalytic converter canning apparatus and method
JP2006299966A (en) * 2005-04-21 2006-11-02 Ibiden Co Ltd Catalyst converter
DE102005022512A1 (en) * 2005-05-11 2006-11-16 J. Eberspächer GmbH & Co. KG Manufacture of exhaust gas treatment device for internal combustion engine for motor vehicle entails reducing cross section of casing in direction from insert region to funnel region
US7503956B2 (en) * 2005-10-25 2009-03-17 Caterpillar Inc. Exhaust treatment device with adjustable retention collar
US7682577B2 (en) 2005-11-07 2010-03-23 Geo2 Technologies, Inc. Catalytic exhaust device for simplified installation or replacement
US7682578B2 (en) 2005-11-07 2010-03-23 Geo2 Technologies, Inc. Device for catalytically reducing exhaust
US7722828B2 (en) 2005-12-30 2010-05-25 Geo2 Technologies, Inc. Catalytic fibrous exhaust system and method for catalyzing an exhaust gas
EP2021169A4 (en) * 2006-05-31 2011-10-05 Unifrax I Llc Backup thermal insulation plate
US20080241007A1 (en) * 2007-04-02 2008-10-02 Delphi Technologies, Inc. Catalytic converter with inner sheath and method for making the same
DE102007023704A1 (en) * 2007-05-22 2008-11-27 Arvinmeritor Emissions Technologies Gmbh Exhaust treatment device and method of manufacturing an exhaust treatment device
FR2928966B1 (en) * 2008-03-20 2018-12-07 Faurecia Systemes D'echappement PROCESS FOR MANUFACTURING AN EXHAUST GAS PURIFYING DEVICE OF A MOTOR VEHICLE
AU2009286013A1 (en) * 2008-08-29 2010-03-04 Unifrax I Llc Mounting mat with flexible edge protection and exhaust gas treatment device incorporating the mounting mat
DE102008049925A1 (en) * 2008-10-02 2010-04-08 J. Eberspächer GmbH & Co. KG Connection method for tubular components
US8667681B2 (en) * 2008-11-11 2014-03-11 Tenneco Automotive Operating Company Inc. Catalytic unit for treating an exhaust gas and manufacturing methods for such units
CA2745034C (en) * 2008-12-15 2014-01-21 Unifrax I Llc Ceramic honeycomb structure skin coating
RU2011126262A (en) * 2009-01-05 2013-02-10 ЮНИФРЭКС I ЭлЭлСи INSULATING PLATE FROM HIGH-STRENGTH BIO-SOLUBLE INORGANIC FIBERS
US8075843B2 (en) * 2009-04-17 2011-12-13 Unifrax I Llc Exhaust gas treatment device
GB0906837D0 (en) 2009-04-21 2009-06-03 Saffil Automotive Ltd Mats
DE102009030632C5 (en) 2009-06-25 2014-12-31 Benteler Automobiltechnik Gmbh Method and device for producing a catalyst
EP2464840A4 (en) * 2009-08-10 2013-10-30 Unifrax I Llc Variable basis weight mounting mat or pre-form and exhaust gas treatment device
EP2464838A1 (en) * 2009-08-14 2012-06-20 Unifrax I LLC Multiple layer substrate support and exhaust gas treatment device
CN102575542B (en) 2009-08-14 2014-09-10 尤尼弗瑞克斯I有限责任公司 Mounting mat for exhaust gas treatment device
US8071040B2 (en) * 2009-09-23 2011-12-06 Unifax I LLC Low shear mounting mat for pollution control devices
WO2011037634A1 (en) * 2009-09-24 2011-03-31 Unifrax I Llc Multiple layer mat and exhaust gas treatment device
WO2011067598A1 (en) 2009-12-01 2011-06-09 Saffil Automotive Limited Mounting mat
WO2011084487A1 (en) 2009-12-17 2011-07-14 Unifrax I Llc Mounting mat for exhaust gas treatment device
EP2513442B1 (en) 2009-12-17 2017-11-29 Unifrax I LLC An exhaust gas treatment device
CA2782413C (en) 2009-12-17 2017-12-05 Unifrax I Llc Multilayer mounting mat for pollution control devices
US8765069B2 (en) 2010-08-12 2014-07-01 Unifrax I Llc Exhaust gas treatment device
EP2603676B1 (en) 2010-08-13 2016-03-23 Unifrax I LLC Mounting mat with flexible edge protection and exhaust gas treatment device incorporating the mounting mat
CN103547777A (en) 2010-11-11 2014-01-29 尤尼弗瑞克斯I有限责任公司 Mounting mat and exhaust gas treatment device
US9924564B2 (en) 2010-11-11 2018-03-20 Unifrax I Llc Heated mat and exhaust gas treatment device
CN103899391A (en) * 2012-12-31 2014-07-02 默锐克(北京)科技有限公司 Production method of three-way catalyst
DE202013100246U1 (en) * 2013-01-18 2014-04-24 Friedrich Boysen Gmbh & Co. Kg exhaust gas cleaning device
JP6346742B2 (en) * 2013-12-05 2018-06-20 イビデン株式会社 Sheet material cutting method
MX2017002919A (en) 2015-02-24 2017-10-11 Unifrax I Llc High temperature resistant insulation mat.
US10598068B2 (en) 2015-12-21 2020-03-24 Emissol, Llc Catalytic converters having non-linear flow channels
WO2017192508A1 (en) * 2016-05-03 2017-11-09 Masdar Institute Of Science And Technology Catalytic converter substrates comprising triply periodic minimal surfaces
US10436091B2 (en) * 2016-06-02 2019-10-08 Pollution Control Devices, Llc Emission control device
EP3464488B1 (en) 2016-06-06 2021-07-14 Unifrax I LLC Refractory coating material containing low biopersistent fibers and method for making the same
JP2019148218A (en) * 2018-02-27 2019-09-05 本田技研工業株式会社 Exhaust emission control device

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070158A (en) * 1974-07-16 1978-01-24 Volkswagenwerk Aktiengesellschaft Catalyst for catalytic purification of exhaust gases
US4148120A (en) * 1974-07-16 1979-04-10 Volkswagenwerk Aktiengesellschaft Method of manufacturing a catalyst for catalytic purification of exhaust gases
US4343074A (en) * 1979-10-22 1982-08-10 Uop Inc. Method of making a catalytic converter
US4400860A (en) * 1978-12-23 1983-08-30 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Method for producing a cartridge for purifying exhaust gas
US4865818A (en) * 1987-08-17 1989-09-12 Minnesota Mining And Manufacturing Co. Catalytic converter for automotive exhaust system
US5096111A (en) * 1990-10-05 1992-03-17 Nippon Steel Corporation Method for contracting a cylindrical body
US5119551A (en) * 1989-02-06 1992-06-09 Tennessee Gas Pipeline Company Method of making a catalytic converter with one piece housing
US5302355A (en) * 1992-02-28 1994-04-12 Sankei Giken Kogyo Kabushiki Kaisha Exhaust purifying device and method of producing the same
US5329698A (en) * 1989-02-06 1994-07-19 Tennessee Gas Pipeline Company Method of assembling a catalytic converter
US5346675A (en) * 1988-12-16 1994-09-13 Usui Kokusai Sangyo Kabushiki Kaisha Exhaust gas cleaning apparatus
US5666726A (en) * 1993-04-22 1997-09-16 Unifrax Corporation Method of making a mounting mat for fragile structures such as catalytic converters
US5729902A (en) * 1992-12-09 1998-03-24 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Catalytic converter with two or more honeycomb bodies in a casing tube and method for its production

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4093423A (en) * 1972-10-03 1978-06-06 Volkswagenwerk Aktiengesellschaft Catalytic device for the catalytic purification of exhaust gases
US3958312A (en) * 1974-01-18 1976-05-25 British Leyland Motor Corporation Limited Catalytic device for an exhaust system for an internal combustion engine
US4397817A (en) * 1980-08-20 1983-08-09 Honda Giken Kogyo Kabushiki Kaisha Catalytic converter
JPS5741415A (en) * 1980-08-25 1982-03-08 Honda Motor Co Ltd Cusion supporting end of catalyst converter of monolith type
US4504294A (en) * 1983-07-08 1985-03-12 Arvin Industries, Inc. Exhaust processor assembly
US4765047A (en) * 1986-09-08 1988-08-23 W. R. Grace & Co.-Conn. Method of making a metal honeycomb catalyst support having a double taper
US4985212A (en) * 1987-09-29 1991-01-15 Kabushiki Kaisha Toshiba Support apparatus for a ceramic honeycomb element
JP2651544B2 (en) * 1988-09-06 1997-09-10 カルソニック株式会社 Method for producing catalyst carrier
US5096011A (en) * 1988-12-30 1992-03-17 Ford Motor Company Steering gear and system for automotive vehicle
JPH0747928B2 (en) * 1989-08-10 1995-05-24 日本ピラー工業株式会社 Catalytic converter
US5082479A (en) * 1990-07-16 1992-01-21 Cummins Engine Company, Inc. Diesel particulate trap mounting system

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070158A (en) * 1974-07-16 1978-01-24 Volkswagenwerk Aktiengesellschaft Catalyst for catalytic purification of exhaust gases
US4148120A (en) * 1974-07-16 1979-04-10 Volkswagenwerk Aktiengesellschaft Method of manufacturing a catalyst for catalytic purification of exhaust gases
US4400860A (en) * 1978-12-23 1983-08-30 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Method for producing a cartridge for purifying exhaust gas
US4343074A (en) * 1979-10-22 1982-08-10 Uop Inc. Method of making a catalytic converter
US4865818A (en) * 1987-08-17 1989-09-12 Minnesota Mining And Manufacturing Co. Catalytic converter for automotive exhaust system
US5346675A (en) * 1988-12-16 1994-09-13 Usui Kokusai Sangyo Kabushiki Kaisha Exhaust gas cleaning apparatus
US5119551A (en) * 1989-02-06 1992-06-09 Tennessee Gas Pipeline Company Method of making a catalytic converter with one piece housing
US5329698A (en) * 1989-02-06 1994-07-19 Tennessee Gas Pipeline Company Method of assembling a catalytic converter
US5096111A (en) * 1990-10-05 1992-03-17 Nippon Steel Corporation Method for contracting a cylindrical body
US5302355A (en) * 1992-02-28 1994-04-12 Sankei Giken Kogyo Kabushiki Kaisha Exhaust purifying device and method of producing the same
US5729902A (en) * 1992-12-09 1998-03-24 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Catalytic converter with two or more honeycomb bodies in a casing tube and method for its production
US5666726A (en) * 1993-04-22 1997-09-16 Unifrax Corporation Method of making a mounting mat for fragile structures such as catalytic converters

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1549416A4 *

Also Published As

Publication number Publication date
WO1999013204A2 (en) 1999-03-18
EP1549416A2 (en) 2005-07-06
US6101714A (en) 2000-08-15
EP1549416A4 (en) 2006-04-12
JP2003526034A (en) 2003-09-02
CN101426563A (en) 2009-05-06

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