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GB1395960A - Catalytic converter - Google Patents

Catalytic converter

Info

Publication number
GB1395960A
GB1395960A GB3886672A GB3886672A GB1395960A GB 1395960 A GB1395960 A GB 1395960A GB 3886672 A GB3886672 A GB 3886672A GB 3886672 A GB3886672 A GB 3886672A GB 1395960 A GB1395960 A GB 1395960A
Authority
GB
United Kingdom
Prior art keywords
catalyst
heat
container
support
temperature
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
Application number
GB3886672A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1395960A publication Critical patent/GB1395960A/en
Expired 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/085—Other arrangements or adaptations of exhaust conduits having means preventing foreign matter from entering exhaust conduit
    • 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
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or 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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2842—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb type
    • 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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • 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
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features having thermal insulation
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/10—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat accumulator
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating 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
    • F01N2290/00—Movable parts or members in exhaust systems for other than for control purposes
    • 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
    • F01N2470/00—Structure or shape of exhaust gas passages, pipes or tubes
    • F01N2470/12—Tubes being corrugated
    • 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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

1395960 Purifying exhaust gases FORD MOTOR CO Ltd 21 Aug 1972 [13 Sept 1971] 38866/72 Heading F1B Exhaust gas purifying device comprises a housing 10 having an inlet 12 and an outlet 14, a catalyst 22 and a heat storing means 26 comprising a material 34 that absorbs sufficient heat to change its physical state at a temperature exceeding the activation temperature of the catalyst and reverses said physical change of state to transfer conductively the released latent heat to the catalyst when the catalyst temperature declines below the temperature at which the material changes its physical state. Housing 10 has double walls filled with thermal insulation 16. A flap-valve 21 prevents reverse flow. The catalyst support 22 consists of small passages 24 containing finely-divided catalyst. The heat storing means consists of a container 28 inserted into an opening in the rear end of the support and extending almost to the front of the support. A tapered extension 30 of the container projects rearwardly from the support and is exposed to the hot gas stream which leaves the passages 24. Heat transfer is enhanced by fins 33. The container is filled with zinc 34. During operation of the catalyst, the body of the container is heat by conduction and the extension 30 by convection so that the zinc melts. When the engine is stopped, heat from the container maintains the temperature of the catalyst so that it rapidly returns to operating temperature if the engine is re-started after a short period. In a first modification Fig. 2, (not shown) the single central container is replaced by several smaller containers spaced around a circle centred on the support axis. In a second modification, Fig. 3 (not shown) two containers, each frusto-conical in shape are positioned, one upstream and one downstream of the catalyst support, in the tapered ends of the housing. Fig. 4 shows a device having a tangential gas entry and a heat reflector 40 backed by thermal insulation 44. The casing 42 is corrugated to reduce convective heat losses from the interior of the housing. The casing 42 may be made small enough to enter the inlet 36 and be mounted on a reciprocable rod which also carries a plate which closes the inlet 36 when the casing 42 is moved into the inlet at the time the engine is stopped. The material 34 may also be aluminium or tin, or alloys thereof, mercury, bismuth or cadnium.
GB3886672A 1971-09-13 1972-08-21 Catalytic converter Expired GB1395960A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17986171A 1971-09-13 1971-09-13

Publications (1)

Publication Number Publication Date
GB1395960A true GB1395960A (en) 1975-05-29

Family

ID=22658292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3886672A Expired GB1395960A (en) 1971-09-13 1972-08-21 Catalytic converter

Country Status (2)

Country Link
CA (1) CA962463A (en)
GB (1) GB1395960A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472415A1 (en) * 1979-11-21 1981-07-03 Degussa CATALYST PROTECTED AGAINST OVERHEATING
EP0226022A1 (en) * 1985-11-13 1987-06-24 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Combined exhaust silencer and vibration damper
DE4206839A1 (en) * 1991-03-26 1992-10-01 Kioritz Corp SILENCER WITH CATALYST
GB2267234A (en) * 1991-09-03 1993-12-01 Usui Kokusai Sangyo Kk Warming catalytic converters
EP0596854A1 (en) * 1992-11-02 1994-05-11 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Catalyst
FR2698909A1 (en) * 1992-12-04 1994-06-10 Renault Anti-pollution exhaust system, e.g. for i.c. engines, reduces start=up pollution - has prim. chamber with thermostatic control to pre-heat low temp. gases produced on start=up, feeding conventional catalytic converters
EP0677648A3 (en) * 1994-04-13 1995-12-06 Nippon Denso Co Exhaust gas purification apparatus.
WO1996007021A1 (en) * 1994-08-29 1996-03-07 Emitec Gesellschaft Für Emissionstechnologie Mbh Catalytic reactor
US5634332A (en) * 1992-09-16 1997-06-03 Nippondenso Co., Ltd. Exhaust gas purification apparatus
EP0832346A4 (en) * 1994-01-27 1998-04-15
EP0839995A1 (en) * 1996-11-05 1998-05-06 Degussa Aktiengesellschaft Exhaust gas purification converter
WO2001057371A1 (en) * 2000-02-02 2001-08-09 Emitec Gesellschaft Für Emissionstechnologie Mbh Honeycomb composite and heat accumulator and method for use thereof
EP1775010A3 (en) * 2005-10-14 2007-10-17 Robert Bosch Gmbh Internal channel for a filtering element for homogenising the temperature and filter for treating flue gases
RU2406835C1 (en) * 2009-06-09 2010-12-20 Государственное образовательное учреждение высшего профессионального образования "Алтайский государственный технический университет им. И.И. Ползунова" (АлтГТУ) Catalytic neutraliser stabilising temperature of exhaust of internal combustion engine
CN101903623B (en) * 2007-12-21 2014-06-04 雷诺卡车公司 Thermal Energy Conservation Devices for Exhaust Gas Purification Plants
GB2512845A (en) * 2013-04-08 2014-10-15 Barry Mead An Improved Exhaust Filtration Device
JP2014214684A (en) * 2013-04-26 2014-11-17 株式会社 Ａｃｒ Honeycomb structure
EP3415732A1 (en) * 2017-06-16 2018-12-19 IFP Energies nouvelles Catalytic system for treating exhaust gas of a hybrid vehicle comprising heat storage means
CN113551351A (en) * 2021-07-23 2021-10-26 祝起胜 Remove aldehyde air purifier based on thermal catalytic oxidation method

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472415A1 (en) * 1979-11-21 1981-07-03 Degussa CATALYST PROTECTED AGAINST OVERHEATING
EP0226022A1 (en) * 1985-11-13 1987-06-24 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Combined exhaust silencer and vibration damper
DE4206839A1 (en) * 1991-03-26 1992-10-01 Kioritz Corp SILENCER WITH CATALYST
GB2267234A (en) * 1991-09-03 1993-12-01 Usui Kokusai Sangyo Kk Warming catalytic converters
GB2267234B (en) * 1991-09-03 1996-01-10 Usui Kokusai Sangyo Kk Device for the catalytic purification of automotive exhaust gas
US5634332A (en) * 1992-09-16 1997-06-03 Nippondenso Co., Ltd. Exhaust gas purification apparatus
EP0596854A1 (en) * 1992-11-02 1994-05-11 AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List Catalyst
FR2698909A1 (en) * 1992-12-04 1994-06-10 Renault Anti-pollution exhaust system, e.g. for i.c. engines, reduces start=up pollution - has prim. chamber with thermostatic control to pre-heat low temp. gases produced on start=up, feeding conventional catalytic converters
EP1445440A1 (en) * 1994-01-27 2004-08-11 BENSON, David K. Method and apparatus for thermal management of vehicle exhaust systems
EP0832346A4 (en) * 1994-01-27 1998-04-15
EP0677648A3 (en) * 1994-04-13 1995-12-06 Nippon Denso Co Exhaust gas purification apparatus.
RU2134355C1 (en) * 1994-08-29 1999-08-10 Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх Catalytic reactor
CN1084428C (en) * 1994-08-29 2002-05-08 发射技术有限公司 Catalytic reactor
WO1996007021A1 (en) * 1994-08-29 1996-03-07 Emitec Gesellschaft Für Emissionstechnologie Mbh Catalytic reactor
EP0839995A1 (en) * 1996-11-05 1998-05-06 Degussa Aktiengesellschaft Exhaust gas purification converter
WO2001057371A1 (en) * 2000-02-02 2001-08-09 Emitec Gesellschaft Für Emissionstechnologie Mbh Honeycomb composite and heat accumulator and method for use thereof
EP1775010A3 (en) * 2005-10-14 2007-10-17 Robert Bosch Gmbh Internal channel for a filtering element for homogenising the temperature and filter for treating flue gases
CN101903623B (en) * 2007-12-21 2014-06-04 雷诺卡车公司 Thermal Energy Conservation Devices for Exhaust Gas Purification Plants
RU2406835C1 (en) * 2009-06-09 2010-12-20 Государственное образовательное учреждение высшего профессионального образования "Алтайский государственный технический университет им. И.И. Ползунова" (АлтГТУ) Catalytic neutraliser stabilising temperature of exhaust of internal combustion engine
GB2512845A (en) * 2013-04-08 2014-10-15 Barry Mead An Improved Exhaust Filtration Device
JP2014214684A (en) * 2013-04-26 2014-11-17 株式会社 Ａｃｒ Honeycomb structure
EP3415732A1 (en) * 2017-06-16 2018-12-19 IFP Energies nouvelles Catalytic system for treating exhaust gas of a hybrid vehicle comprising heat storage means
FR3067756A1 (en) * 2017-06-16 2018-12-21 IFP Energies Nouvelles CATALYTIC SYSTEM FOR TREATING EXHAUST GAS OF HYBRID VEHICLE HAVING HEAT STORAGE MEANS
CN113551351A (en) * 2021-07-23 2021-10-26 祝起胜 Remove aldehyde air purifier based on thermal catalytic oxidation method
CN113551351B (en) * 2021-07-23 2022-06-14 祝起胜 Remove aldehyde air purifier based on thermal catalytic oxidation method

Also Published As

Publication number Publication date
CA962463A (en) 1975-02-11

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