WO2007113679A3 - Exhaust gas purification system for internal combustion engine - Google Patents

Exhaust gas purification system for internal combustion engine Download PDF

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Publication number
WO2007113679A3
WO2007113679A3 PCT/IB2007/000996 IB2007000996W WO2007113679A3 WO 2007113679 A3 WO2007113679 A3 WO 2007113679A3 IB 2007000996 W IB2007000996 W IB 2007000996W WO 2007113679 A3 WO2007113679 A3 WO 2007113679A3
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
combustion engine
internal combustion
purification system
gas purification
Prior art date
Application number
PCT/IB2007/000996
Other languages
French (fr)
Other versions
WO2007113679A2 (en
Inventor
Nobuyuki Takagi
Masahide Miura
Shinichi Matsumoto
Toshitaka Tanabe
Yasutaka Nagai
Miho Hatanaka
Kazuhiko Dohmae
Toshio Yamamoto
Yasuo Ikeda
Original Assignee
Toyota Motor Co Ltd
Nobuyuki Takagi
Masahide Miura
Shinichi Matsumoto
Toshitaka Tanabe
Yasutaka Nagai
Miho Hatanaka
Kazuhiko Dohmae
Toshio Yamamoto
Yasuo Ikeda
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 Toyota Motor Co Ltd, Nobuyuki Takagi, Masahide Miura, Shinichi Matsumoto, Toshitaka Tanabe, Yasutaka Nagai, Miho Hatanaka, Kazuhiko Dohmae, Toshio Yamamoto, Yasuo Ikeda filed Critical Toyota Motor Co Ltd
Priority to EP07734315A priority Critical patent/EP2004964A2/en
Priority to US12/295,393 priority patent/US20090266053A1/en
Publication of WO2007113679A2 publication Critical patent/WO2007113679A2/en
Publication of WO2007113679A3 publication Critical patent/WO2007113679A3/en

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
    • 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
    • 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
    • F01N13/011—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 purifying devices arranged in parallel
    • 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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0871—Regulation of absorbents or adsorbents, e.g. purging
    • F01N3/0878—Bypassing absorbents or adsorbents
    • 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
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • 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
    • F01N3/30—Arrangements for supply of additional air
    • 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
    • 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

Abstract

An exhaust gas purification system includes: at least two catalysts (1a, 1b) disposed in parallel with each other on an exhaust gas passage of an internal combustion engine (3) and having a carrier containing a basic oxide and platinum carried on the carrier; and oxygen supply means (2) for supplying oxygen to the catalysts (1a, 1b).
PCT/IB2007/000996 2006-03-30 2007-03-29 Exhaust gas purification system for internal combustion engine WO2007113679A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07734315A EP2004964A2 (en) 2006-03-30 2007-03-29 Exhaust gas purification system for internal combustion engine
US12/295,393 US20090266053A1 (en) 2006-03-30 2007-03-29 Exhaust gas purification system for internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006095125 2006-03-30
JP2006-095125 2006-03-30

Publications (2)

Publication Number Publication Date
WO2007113679A2 WO2007113679A2 (en) 2007-10-11
WO2007113679A3 true WO2007113679A3 (en) 2007-12-06

Family

ID=38461187

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/000996 WO2007113679A2 (en) 2006-03-30 2007-03-29 Exhaust gas purification system for internal combustion engine

Country Status (6)

Country Link
US (1) US20090266053A1 (en)
EP (1) EP2004964A2 (en)
KR (1) KR20080110597A (en)
CN (1) CN101410598A (en)
RU (1) RU2008138713A (en)
WO (1) WO2007113679A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0586848A (en) * 1991-09-25 1993-04-06 Toyota Motor Corp Exhaust emission control device for internal combustion engine
DE19808098C1 (en) * 1998-02-26 1999-08-05 Daimler Benz Ag Reduction of nitrogen oxides content in exhaust gases to meet future low temperature conversion regulations
EP1186764A2 (en) * 2000-09-07 2002-03-13 Nissan Motor Co., Ltd. Engine exhaust gas purification device
US20050120711A1 (en) * 2003-12-04 2005-06-09 Toyota Jidosha Kabushiki Kaisha Secondary air supply system and abnormality diagnosis method of secondary air supply system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3336750B2 (en) * 1994-08-08 2002-10-21 トヨタ自動車株式会社 Method for regenerating particulate collection filter and exhaust gas purifying device provided with particulate collection filter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0586848A (en) * 1991-09-25 1993-04-06 Toyota Motor Corp Exhaust emission control device for internal combustion engine
DE19808098C1 (en) * 1998-02-26 1999-08-05 Daimler Benz Ag Reduction of nitrogen oxides content in exhaust gases to meet future low temperature conversion regulations
EP1186764A2 (en) * 2000-09-07 2002-03-13 Nissan Motor Co., Ltd. Engine exhaust gas purification device
US20050120711A1 (en) * 2003-12-04 2005-06-09 Toyota Jidosha Kabushiki Kaisha Secondary air supply system and abnormality diagnosis method of secondary air supply system

Also Published As

Publication number Publication date
EP2004964A2 (en) 2008-12-24
KR20080110597A (en) 2008-12-18
RU2008138713A (en) 2010-04-10
WO2007113679A2 (en) 2007-10-11
CN101410598A (en) 2009-04-15
US20090266053A1 (en) 2009-10-29

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