WO2009016006A1 - Système d'échappement d'un moteur à combustion interne - Google Patents

Système d'échappement d'un moteur à combustion interne Download PDF

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Publication number
WO2009016006A1
WO2009016006A1 PCT/EP2008/058887 EP2008058887W WO2009016006A1 WO 2009016006 A1 WO2009016006 A1 WO 2009016006A1 EP 2008058887 W EP2008058887 W EP 2008058887W WO 2009016006 A1 WO2009016006 A1 WO 2009016006A1
Authority
WO
WIPO (PCT)
Prior art keywords
central region
exhaust system
oxidation catalyst
diameter
exhaust
Prior art date
Application number
PCT/EP2008/058887
Other languages
German (de)
English (en)
Inventor
Dominik Huelsmeier
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2009016006A1 publication Critical patent/WO2009016006A1/fr

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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • 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
    • F01N13/009—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 separate purifying devices arranged in series
    • F01N13/0097—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 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
    • F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
    • F01N3/106—Auxiliary oxidation catalysts
    • 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
    • F01N3/2892—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
    • 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
    • F01N2240/20—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 flow director or deflector
    • 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
    • F01N2330/30—Honeycomb supports characterised by their structural details
    • F01N2330/48—Honeycomb supports characterised by their structural details characterised by the number of flow passages, e.g. cell density
    • 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
    • F01N2330/60—Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same 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
    • F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the apparatus; Spatial arrangements of exhaust apparatuses

Definitions

  • the central region can have a flow guide section, for example in the form of a pointed cone, at least at its upstream end.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

Un système d'échappement (12) d'un moteur à combustion interne comprend un tuyau d'échappement et un catalyseur d'oxydation (14) raccordé à ce dernier. Un filtre à particules (16) est placé en aval dudit catalyseur. Le diamètre d'un corps (24) du catalyseur d'oxydation (14) est supérieur au diamètre du tuyau d'échappement (22). Selon l'invention, le corps (24) du catalyseur d'oxydation (14) est moins perméable aux gaz d'échappement dans une zone centrale (30) que dans une zone de bordure extérieure (28).
PCT/EP2008/058887 2007-08-02 2008-07-09 Système d'échappement d'un moteur à combustion interne WO2009016006A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007036254.6 2007-08-02
DE200710036254 DE102007036254A1 (de) 2007-08-02 2007-08-02 Abgasanlage einer Brennkraftmaschine

Publications (1)

Publication Number Publication Date
WO2009016006A1 true WO2009016006A1 (fr) 2009-02-05

Family

ID=40032897

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/058887 WO2009016006A1 (fr) 2007-08-02 2008-07-09 Système d'échappement d'un moteur à combustion interne

Country Status (2)

Country Link
DE (1) DE102007036254A1 (fr)
WO (1) WO2009016006A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112013006490B4 (de) 2013-01-23 2019-02-07 Toyota Jidosha Kabushiki Kaisha Katalytischer Wandler
DE112013006663B4 (de) 2013-02-13 2021-11-25 Toyota Jidosha Kabushiki Kaisha Katalytischer Wandler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014213289A (ja) * 2013-04-26 2014-11-17 トヨタ自動車株式会社 触媒コンバーター

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0781903A1 (fr) * 1995-12-26 1997-07-02 Corning Incorporated Dispositif fluidique pour gaz d'échappement
DE19938038A1 (de) * 1998-09-14 2000-05-04 Ford Global Tech Inc Abgasbehandlungsvorrichtung mit variierender Zelldichte
US20040050040A1 (en) * 2002-09-16 2004-03-18 Lester Berriman Diverter for catalytic converter
US6817174B1 (en) * 1999-10-19 2004-11-16 Hino Motors, Ltd. Filtering means regenerating system for diesel engine
WO2008060563A2 (fr) * 2006-11-15 2008-05-22 Corning Incorporated Substrat d'écoulement en nid d'abeilles et système et procédé de post-traitement de gaz d'échappement
FR2912461A3 (fr) * 2007-02-09 2008-08-15 Renault Sas Systeme de traitement des gaz d'echappement comprenant un injecteur d'hydrocarbures

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0781903A1 (fr) * 1995-12-26 1997-07-02 Corning Incorporated Dispositif fluidique pour gaz d'échappement
DE19938038A1 (de) * 1998-09-14 2000-05-04 Ford Global Tech Inc Abgasbehandlungsvorrichtung mit variierender Zelldichte
US6817174B1 (en) * 1999-10-19 2004-11-16 Hino Motors, Ltd. Filtering means regenerating system for diesel engine
US20040050040A1 (en) * 2002-09-16 2004-03-18 Lester Berriman Diverter for catalytic converter
WO2008060563A2 (fr) * 2006-11-15 2008-05-22 Corning Incorporated Substrat d'écoulement en nid d'abeilles et système et procédé de post-traitement de gaz d'échappement
FR2912461A3 (fr) * 2007-02-09 2008-08-15 Renault Sas Systeme de traitement des gaz d'echappement comprenant un injecteur d'hydrocarbures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112013006490B4 (de) 2013-01-23 2019-02-07 Toyota Jidosha Kabushiki Kaisha Katalytischer Wandler
DE112013006663B4 (de) 2013-02-13 2021-11-25 Toyota Jidosha Kabushiki Kaisha Katalytischer Wandler

Also Published As

Publication number Publication date
DE102007036254A1 (de) 2009-02-05

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