WO2004070177A1 - Systeme d'aide a la regeneration d'un filtre a particules d'une ligne d'echappement d'un moteur diesel - Google Patents
Systeme d'aide a la regeneration d'un filtre a particules d'une ligne d'echappement d'un moteur diesel Download PDFInfo
- Publication number
- WO2004070177A1 WO2004070177A1 PCT/FR2004/000007 FR2004000007W WO2004070177A1 WO 2004070177 A1 WO2004070177 A1 WO 2004070177A1 FR 2004000007 W FR2004000007 W FR 2004000007W WO 2004070177 A1 WO2004070177 A1 WO 2004070177A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- engine
- particle filter
- impregnation
- fap
- filter
- 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.)
- Ceased
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
-
- 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
- F01N3/02—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
- F01N3/022—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0222—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
-
- 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
- F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
-
- 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
- F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
-
- 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
- F01N2250/00—Combinations of different methods of purification
- F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
-
- 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
-
- 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
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
- F01N2430/04—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by adding non-fuel substances to combustion air or fuel, e.g. additives
-
- 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
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
- F01N2430/08—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by modifying ignition or injection timing
- F01N2430/085—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by modifying ignition or injection timing at least a part of the injection taking place during expansion or exhaust stroke
-
- 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
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
Definitions
- the invention relates to the automobile industry and, more particularly, the depollution of internal combustion engines, in particular diesel engines.
- Diesel engine vehicles of recent design are equipped, on their exhaust lines, with various devices ensuring the treatment of pollutants produced by the combustion of fuel in the engine.
- a first of these devices ensures the oxidation of the exhaust gases through the passage of these gases over an oxidation catalyst.
- a second of these devices is a particle filter (FAP) on which the particles (soot) produced by combustion are deposited. Periodically, this soot must be burned, in particular using an increase in the temperature of the DPF or the exhaust gases, to prevent the filter from clogging and restore it to its original performance (so-called "Regeneration").
- an additive such as cerine and / or iron oxide can be added to the fuel, using a suitable device, which mixes with the soot and lowers its combustion temperature.
- a cleaning of the FAP is necessary to remove the additive and various unburnt residues.
- the object of the invention is to give the manufacturer the possibility of reducing the size of the exhaust lines of diesel engines of motor vehicles and / or of reducing the periodicity of the thorough cleaning of the FAP necessary for the proper functioning of the line. exhaust.
- the subject of the invention is a system for assisting the regeneration of a particulate filter integrated into an exhaust line of a diesel engine of a motor vehicle, the engine being associated with different members, among which : - means for admitting air into the engine,
- a common fuel supply system for the engine cylinders comprising electrically controlled injectors, associated with these cylinders,
- means for controlling the operation of the intake means, recycling means, of the turbocharger and / or of the supply system for controlling the operation of the engine these means being further adapted to trigger a regeneration phase of the filter particles by combustion of the particles trapped therein by snapping a phase of multiple injections of fuel into the engine cylinders during their expansion phase, characterized in that the particulate filter is impregnated with an oxidation catalyst for hydrocarbons and CO present in the exhaust gas flowing through said particulate filter.
- Said catalyst can be a metal or a mixture of metals.
- Said metal can be a group VIII metal such as platinum, palladium or rhodium, or a mixture of such metals.
- the particulate filter may have a zone of greater impregnation by the oxidation catalyst.
- Said area with the highest impregnation can be located in the center of the cross section of the particulate filter.
- Said zone of strongest impregnation can be located at the inlet of the particle filter.
- the surface of said zone with the highest impregnation can represent 20 to 70% of the cross section of said particulate filter.
- Said area with the highest impregnation can be present over 10 to 60% of the length of the particle filter from its inlet face.
- the terminal part of the particulate filter can be devoid of impregnation by the oxidation catalyst.
- the invention has the essential characteristic of carrying out the operations of oxidation of the exhaust gases and filtration of the particles within the same reactor. This is achieved by impregnating the material constituting the FAP with an oxidation catalyst such as a metal, for example platinum.
- FIG. 1 which shows schematically a vehicle diesel engine and the various members associated therewith;
- FIG. 1 shows a diesel engine of a motor vehicle which is designated by the general reference 1.
- This diesel engine is associated with air intake means at the inlet thereof, which are designated by the general reference 2.
- this engine is associated with an exhaust line which is designated by the general reference 3.
- Means for recycling the exhaust gas from the engine at the inlet thereof are also provided and are designated by the general reference 4.
- the exhaust line can also be associated with a turbocharger designated by the general reference 5 and more particularly with the turbine portion thereof, in a conventional manner.
- the exhaust line comprises, according to the invention, a housing 6 containing a particle filter designated by the general reference 7, this particle filter being impregnated with an oxidation catalyst.
- Oxidation and “filtration” are therefore carried out in the same medium, unlike the prior art where the gases pass successively through an oxidation medium and a filtration medium each dedicated to one of these functions and not to the other.
- the engine is also associated with a common fuel supply system for the cylinders.
- This system is designated by the general reference 8 in this figure and comprises, for example, electrically controlled injectors associated with these cylinders.
- the engine is a four-cylinder engine and therefore includes four electrically controlled injectors, respectively 9, 10, 11 and 12.
- injectors are associated with a common fuel supply manifold designated by the general reference 13 and connected to fuel supply means designated by the general reference 14, comprising for example a high pressure pump.
- fuel supply means are connected to a fuel tank designated by the general reference 15 and to means for adding to this fuel an additive intended to be deposited on the particle filter to lower the combustion temperature of the trapped particles. In this one.
- this additive can, for example, be contained in an auxiliary tank designated by the general reference 16 associated with the fuel tank 15 to allow the injection of a certain amount of this additive into the fuel.
- this engine and the various members which have just been described are also associated with means for controlling their operation designated by the general reference 17 in this figure, comprising for example any suitable computer 18 associated with storage means for information 19, and connected as input to different means of acquiring information relating to different operating parameters of this engine and of these members, this computer then being adapted to control the operation of the intake means, recycling means, of the turbocharger and / or of the fuel system, so as to control the operation of the engine and in particular the torque generated by it as a function of the driving conditions of the vehicle in a conventional manner.
- any suitable computer 18 associated with storage means for information 19, and connected as input to different means of acquiring information relating to different operating parameters of this engine and of these members, this computer then being adapted to control the operation of the intake means, recycling means, of the turbocharger and / or of the fuel system, so as to control the operation of the engine and in particular the torque generated by it as a function of the driving conditions of the vehicle in a conventional manner.
- this computer is connected to a differential pressure sensor 20 at the terminals of the particle filter 7 and to temperature sensors 21, 22, respectively upstream of the particle filter and downstream of this particle filter in the exhaust line.
- the computer can also receive information on the oxygen content of the exhaust gases from a Lambda ⁇ probe designated by the general reference 23 in this figure, integrated in the exhaust line.
- this computer is suitable for controlling the air intake means, the exhaust gas recycling means, the turbocharger, the means for adding the additive to the fuel, the fuel supply means. of the common rail and the different injectors associated with the engine cylinders.
- this computer is adapted to trigger a regeneration phase of the particle filter by combustion of the particles trapped in it by initiating a phase of multiple injections of fuel into the engine cylinders during their expansion phase.
- the particles emitted by the engine during its operation are in fact trapped in the particle filter. It should then be regenerated regularly by combustion of these particles.
- the engine In conventional systems where the oxidation and filtration functions are separated, the engine, during its normal operating phases, emits exhaust gases essentially containing hydrocarbons, CO, C0 2 , water vapor , NO x , oxygen and particles, at a temperature of 180-200 ° C.
- the passage through the reactor containing the oxidation catalyst generally a metal such as platinum
- the combustible fraction of soot (so-called “soluble organic fraction”, abbreviated as SOF), in the form of hydrocarbons condensed on the particles, is also treated by the oxidation catalyst.
- SOF soluble organic fraction
- the exhaust gases therefore contain more significantly only residual oxygen, CO 2 , water vapor (these two compounds in greater quantities than at the inlet of the catalyst d 'oxidation), NO x and particles.
- These rejects then enter the FAP, where they are purified of the particles which are deposited on the walls of the filter. Releases to the atmosphere then contain, significantly, only oxygen, C0 2 , water vapor and NO x .
- these NO x can be treated in a NO x treatment device, such as a NO x trap, and thus cannot be released into the atmosphere.
- the reactor containing the oxidation catalyst is eliminated as such. Its function is transferred to the particle filter 7 which is made of a material traditionally used for this purpose.
- an oxidation catalyst such as platinum and / or palladium.
- This catalyst is carried by an oxide washcoat (A1 2 0 3 for example), which can also contain compounds having an OSC (oxygen storage) function: for example materials of the cerium oxide group and / or mixed oxide of cerium and zirconium. This impregnation can relate only to the surface of the pores, or to the entire material.
- this material can be adapted, from the point of view of its porosity and the distribution of the pore diameter, so that the catalyzed oxidation reaction takes place there with optimal efficiency, comparable to that which is observed in conventional separate oxidation reactors, without producing too great back pressure which would hinder the flow of gases.
- the pore size is centered on approximately 9 ⁇ m in a conventional particle filter. In an impregnated particle filter according to the invention, this pore size can be centered on sizes from 11 ⁇ m up to 20-30 ⁇ m. These values are given only as examples.
- an exhaust line comprising a modified FAP 7 according to the invention with an exhaust line comprising a conventional FAP located immediately downstream of an oxidation catalyst, we can say that at the inlet of the modified FAP 7 according to the invention, there are emissions of gases and particles identical to those which usually enter the oxidation reactor. At the outlet of the modified FAP 7 according to the invention, there are gaseous emissions identical to those leaving the FAPs of the prior art.
- a notable advantage of the invention is that the SOF of the soot is not treated before the passage of the soot over the FAP 7. It is thus available to make the combustion of the soot easier during the regeneration phases thanks to the heat released. locally by the combustion of SOF.
- the FAP 7 undergoes a regeneration phase, during which the soot which partially clogs it is burned.
- the time when this regeneration is carried out can be chosen in different ways. Regeneration can be systematically decided after the vehicle has traveled a given distance since the last regeneration. It can also be triggered when the differential pressure sensor 20 notices a large pressure differential between the incoming gases and the outgoing gases, a sign of the start of clogging of the FAP 7. The triggering can also be decided by an estimate of the quantities of soot accumulated in the FAP 7 after consulting a map based on the type of driving performed.
- an additive to the regeneration can be added to the fuel, such as cerine, which lowers the combustion temperature of the soot to about 450 ° C and provides oxygen available for this combustion.
- an additional fuel injection can be carried out upstream of the DPF 7, for example by initiating a phase of multiple injections into the cylinders of the engine 1 during the expansion phase. The purpose of this additional injection is to increase the temperature of the exhaust gases and their hydrocarbon and CO contents, compared to the normal use phases of engine 1.
- FIG. 2 schematically represents in cross section an example of FAP 7 of circular section divided into several modules 24. These modules 24 are homogeneously impregnated with catalyst over their section and over their length. According to a preferred variant of the invention, the impregnation of the FAP 7 by the oxidation catalyst is not carried out in a homogeneous manner.
- the quantity of catalyst is distributed in a privileged manner in the zones of the FAP 7 the most favored thermally and where the gas flows are the most important, to accentuate the conversion of CO and hydrocarbons there, and to prevent the catalytic aging of the filter in the areas most thermally stressed.
- the distribution of the catalyst can be inhomogeneous in the radial direction of the FAP 7 and / or in the axial direction of the FAP 7.
- Figure 3 shows a FAP 7 seen in cross section.
- the lateral modules 25 are impregnated with a lesser amount of catalyst than the most central modules 26.
- the distribution of the catalyst is substantially homogeneous inside each module. This may not always be the case, for example as shown in FIG. 4, where portions of the side modules 25 are also included in the zone of strongest impregnation, so as to give the zone of strongest impregnation a cross section. substantially circular.
- the zone with the highest impregnation represents from 20 to 70% of the cross-sectional area of the FAP 7.
- the amount of catalyst is typically of the order of 1.5 to 5 times that present in the areas of weakest impregnation.
- provision may be made for a distribution of the non-homogeneous catalyst in the longitudinal direction of the FAP 7.
- the impregnation is produced with a lower and homogeneous amount of catalyst to constitute a zone 29 of lower impregnation.
- the zone of weakest impregnation 29 is interrupted before the outlet face 30 of the FAP 7, for example, as shown, in line with the end of the zone of strongest impregnation 27.
- the catalyst has a lower efficiency than in the zone closer to the entry of the FAP 7. It is therefore less useful to carry out an impregnation in this end portion 31, and removing it completely makes it possible to save material, as well as to limit the pressure losses of the combustion gases.
- this absence of catalyst in the terminal part 31 of the FAP 7 is also applicable in the case where the impregnation of the FAP 7 by the catalyst is identical in all the zones where this impregnation exists.
- a first way consists in keeping the oxidation catalyst-FAP assembly at its usual volume. In doing so, the volume available for depositing soot is increased since it can now be carried out in the whole assembly and no longer only in its FAP part. This makes it possible to delay the clogging of the FAP and to no longer have to perform its regenerations and thorough cleaning only at a reduced frequency compared to to the prior art (thorough cleaning may take place, for example, only every 160,000 km or more, depending on the vehicles concerned, instead of every 80,000 km or 120,000 km).
- a second way consists in reducing the size of the oxidation catalyst-FAP assembly, to a size providing a volume available for the deposition of soot sufficient to impose a frequency of thorough cleaning of the FAP comparable to that which is practiced with the exhaust lines of the prior art, in which the oxidation catalyst is separate from the FAP.
- the advantage of the invention then lies in the smaller overall size.
- the invention finds a preferred application in the exhaust lines of diesel engines, but it can be applied on the exhaust line of any type of internal combustion engine for which it would be deemed necessary to use a particulate filter.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtering Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/541,549 US7552585B2 (en) | 2003-01-07 | 2004-01-06 | Aid system for regeneration of a particle filter in an exhaust line of a diesel engine |
| DE602004029979T DE602004029979D1 (de) | 2003-01-07 | 2004-01-06 | Unterstützungssystem zur regeneration einesteilchenfilters in einer auslassleitung eines dieselmotors |
| AT04700266T ATE487858T1 (de) | 2003-01-07 | 2004-01-06 | Unterstützungssystem zur regeneration einesteilchenfilters in einer auslassleitung eines dieselmotors |
| EP04700266A EP1581727B1 (fr) | 2003-01-07 | 2004-01-06 | Systeme d aide a la regeneration d un filtre a particul es d une ligne d echappement d un moteur diesel |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0300112 | 2003-01-07 | ||
| FR0300112A FR2849670B1 (fr) | 2003-01-07 | 2003-01-07 | Filtre a particules pour ligne d'echappement d'un moteur a combustion interne et ligne d'echappement le comprenant |
| FR0300109A FR2849671B1 (fr) | 2003-01-07 | 2003-01-07 | Filtre a particules pour ligne d'echappement et ligne d'echappement, systeme d'aide a la regeneration et procede de traitement des gaz d'echappement l'utilisant |
| FR0300109 | 2003-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004070177A1 true WO2004070177A1 (fr) | 2004-08-19 |
Family
ID=32852326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2004/000007 Ceased WO2004070177A1 (fr) | 2003-01-07 | 2004-01-06 | Systeme d'aide a la regeneration d'un filtre a particules d'une ligne d'echappement d'un moteur diesel |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7552585B2 (fr) |
| EP (1) | EP1581727B1 (fr) |
| AT (1) | ATE487858T1 (fr) |
| DE (1) | DE602004029979D1 (fr) |
| WO (1) | WO2004070177A1 (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1837498A1 (fr) * | 2006-03-23 | 2007-09-26 | Ford Global Technologies, LLC | Système de purification de gaz d'échappement comprenant un piège à polluants et un filtre à particules ainsi qu'un procédé de fabrication d'un tel système |
| EP1837497A1 (fr) * | 2006-03-23 | 2007-09-26 | Ford Global Technologies, LLC | Système de purification de gaz d'échappement comprenant un piège à polluants et un filtre à particules ainsi qu'un procédé de fabrication d'un tel système |
| WO2009027737A1 (fr) * | 2007-08-31 | 2009-03-05 | Johnson Matthey Public Limited Company | Système de diagnostic embarqué |
| EP2108448A3 (fr) * | 2008-03-27 | 2010-01-20 | NGK Insulators, Ltd. | Corps de catalyseur en nid d'abeille |
| US8127537B2 (en) | 2006-02-28 | 2012-03-06 | Johnson Matthey Public Limited Company | Exhaust system for a spark-ignited internal combustion engine |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8109076B2 (en) * | 2006-02-17 | 2012-02-07 | Renault S.A.S. | Method and device for purging an injector in a fuel injector system of use in the regeneration of a particulate filter |
| FR2913431B1 (fr) | 2007-03-06 | 2009-04-24 | Rhodia Recherches & Tech | Procede de fonctionnement d'un moteur diesel en vue de faciliter la regeneration d'un filtre a particules sur la ligne d'echappement |
| GB0705920D0 (en) * | 2007-03-28 | 2007-05-09 | Infineum Int Ltd | Method of supplying iron to the particulate trap of a diesel engine exhaust |
| WO2008143851A1 (fr) * | 2007-05-18 | 2008-11-27 | Tribute Creations, Llc | Réacteur ayant une activité catalytique distribuée de façon différentielle |
| WO2009059102A2 (fr) * | 2007-11-01 | 2009-05-07 | Parker Hannifin Corporation | Moteur diesel |
| GB0811144D0 (en) * | 2008-06-18 | 2008-07-23 | Parker Hannifin U K Ltd | A liquid drain system |
| FR2943730B1 (fr) * | 2009-03-24 | 2014-08-29 | Peugeot Citroen Automobiles Sa | Procede de controle des emissions polluantes d'un moteur a combustion |
| FR2943728B1 (fr) * | 2009-03-24 | 2014-07-11 | Peugeot Citroen Automobiles Sa | Procede de controle des emissions polluantes d'un moteur a combustion, groupe motopropulseur et vehicule equipe de ce groupe motopropulseur |
| KR101177026B1 (ko) * | 2010-02-18 | 2012-08-27 | 임인권 | 매연저감장치 및 매연저감방법 |
| US10688476B2 (en) | 2014-09-10 | 2020-06-23 | Cataler Corporation | Exhaust gas purification catalyst |
| US10202929B1 (en) | 2014-09-22 | 2019-02-12 | National Technology & Engineering Solutions Of Sandia, Llc | Additive-mixing fuel-injection system for internal combustion engines |
| EP4067633B1 (fr) | 2021-03-29 | 2024-08-28 | Andreas Stihl AG & Co. KG | Silencieux de gaz d'échappement, moteur à deux temps ou moteur à quatre temps pourvu de silencieux de gaz d'échappement et catalyseur pour un silencieux de gaz d'échappement |
| DE102022123840A1 (de) | 2022-09-16 | 2024-03-21 | Andreas Stihl Ag & Co. Kg | Abgasnachbehandlungseinrichtung und Abgasschalldämpfer |
| DE102022123839A1 (de) | 2022-09-16 | 2024-03-21 | Andreas Stihl Ag & Co. Kg | Abgasnachbehandlungseinrichtung und Abgasschalldämpfer |
| CN119895123A (zh) | 2022-09-16 | 2025-04-25 | 安德烈·斯蒂尔股份两合公司 | 手持式工作器具和用于手持式工作器具的废气后处理装置 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56148607A (en) * | 1980-04-18 | 1981-11-18 | Enukoa:Kk | Exhaust gas filter for diesel engine |
| JPH0333419A (ja) * | 1989-06-29 | 1991-02-13 | Mitsubishi Motors Corp | 触媒コンバータ |
| US5089237A (en) * | 1989-07-20 | 1992-02-18 | Daimler-Benz Ag | Gas filter with catalytic coating and a gastight downstream region |
| US5758496A (en) * | 1992-09-28 | 1998-06-02 | Ford Global Technologies, Inc. | Particulate and exhaust gas emission control system |
| JPH10244167A (ja) * | 1997-03-06 | 1998-09-14 | Hino Motors Ltd | 排気ガス浄化用触媒構造体 |
| DE19921974A1 (de) * | 1999-05-12 | 2000-11-16 | Volkswagen Ag | Vorrichtung zum Reduzieren von schädlichen Bestandteilen im Abgas einer Brennkraftmaschine, insbesondere einer Diesel-Brennkraftmaschine |
| WO2001012320A1 (fr) | 1999-08-13 | 2001-02-22 | Johnson Matthey Public Limited Company | Filtre catalytique a ecoulement sur paroi |
| DE10048511A1 (de) * | 2000-09-29 | 2002-04-18 | Omg Ag & Co Kg | Verfahren zur Verminderung von Kohlenmonoxid, Kohlenwasserstoffen und Partikel im mageren Abgas von Verbrennungsmotoren |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3580606D1 (de) * | 1984-03-31 | 1991-01-03 | Mitsubishi Motors Corp | Regenerationssystem fuer eine diesel-partikel-oxydierungseinrichtung. |
| JPH09507278A (ja) * | 1993-12-31 | 1997-07-22 | ローヌ−プラン シミ | 内燃機関から発生する炭素質物質のろ過と燃焼のための方法 |
| JP3607980B2 (ja) * | 1999-12-16 | 2005-01-05 | トヨタ自動車株式会社 | 内燃機関 |
| WO2002026379A1 (fr) * | 2000-09-29 | 2002-04-04 | Omg Ag & Co. Kg | Filtre catalytique de particules de suie et utilisation de celui-ci afin de traiter des gaz d'echappement pauvres |
| JP4161546B2 (ja) * | 2001-06-26 | 2008-10-08 | いすゞ自動車株式会社 | 連続再生型ディーゼルパティキュレートフィルタ装置の再生制御方法 |
-
2004
- 2004-01-06 WO PCT/FR2004/000007 patent/WO2004070177A1/fr not_active Ceased
- 2004-01-06 DE DE602004029979T patent/DE602004029979D1/de not_active Expired - Lifetime
- 2004-01-06 EP EP04700266A patent/EP1581727B1/fr not_active Expired - Lifetime
- 2004-01-06 US US10/541,549 patent/US7552585B2/en not_active Expired - Fee Related
- 2004-01-06 AT AT04700266T patent/ATE487858T1/de not_active IP Right Cessation
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56148607A (en) * | 1980-04-18 | 1981-11-18 | Enukoa:Kk | Exhaust gas filter for diesel engine |
| JPH0333419A (ja) * | 1989-06-29 | 1991-02-13 | Mitsubishi Motors Corp | 触媒コンバータ |
| US5089237A (en) * | 1989-07-20 | 1992-02-18 | Daimler-Benz Ag | Gas filter with catalytic coating and a gastight downstream region |
| US5758496A (en) * | 1992-09-28 | 1998-06-02 | Ford Global Technologies, Inc. | Particulate and exhaust gas emission control system |
| JPH10244167A (ja) * | 1997-03-06 | 1998-09-14 | Hino Motors Ltd | 排気ガス浄化用触媒構造体 |
| DE19921974A1 (de) * | 1999-05-12 | 2000-11-16 | Volkswagen Ag | Vorrichtung zum Reduzieren von schädlichen Bestandteilen im Abgas einer Brennkraftmaschine, insbesondere einer Diesel-Brennkraftmaschine |
| WO2001012320A1 (fr) | 1999-08-13 | 2001-02-22 | Johnson Matthey Public Limited Company | Filtre catalytique a ecoulement sur paroi |
| DE10048511A1 (de) * | 2000-09-29 | 2002-04-18 | Omg Ag & Co Kg | Verfahren zur Verminderung von Kohlenmonoxid, Kohlenwasserstoffen und Partikel im mageren Abgas von Verbrennungsmotoren |
Non-Patent Citations (3)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 006, no. 033 (M - 114) 27 February 1982 (1982-02-27) * |
| PATENT ABSTRACTS OF JAPAN vol. 015, no. 168 (M - 1107) 26 April 1991 (1991-04-26) * |
| PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8127537B2 (en) | 2006-02-28 | 2012-03-06 | Johnson Matthey Public Limited Company | Exhaust system for a spark-ignited internal combustion engine |
| EP1837498A1 (fr) * | 2006-03-23 | 2007-09-26 | Ford Global Technologies, LLC | Système de purification de gaz d'échappement comprenant un piège à polluants et un filtre à particules ainsi qu'un procédé de fabrication d'un tel système |
| EP1837497A1 (fr) * | 2006-03-23 | 2007-09-26 | Ford Global Technologies, LLC | Système de purification de gaz d'échappement comprenant un piège à polluants et un filtre à particules ainsi qu'un procédé de fabrication d'un tel système |
| WO2009027737A1 (fr) * | 2007-08-31 | 2009-03-05 | Johnson Matthey Public Limited Company | Système de diagnostic embarqué |
| US8205437B2 (en) | 2007-08-31 | 2012-06-26 | Johnson Matthey Public Limited Company | On board diagnostic system |
| EP2108448A3 (fr) * | 2008-03-27 | 2010-01-20 | NGK Insulators, Ltd. | Corps de catalyseur en nid d'abeille |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060144039A1 (en) | 2006-07-06 |
| ATE487858T1 (de) | 2010-11-15 |
| US7552585B2 (en) | 2009-06-30 |
| EP1581727B1 (fr) | 2010-11-10 |
| EP1581727A1 (fr) | 2005-10-05 |
| DE602004029979D1 (de) | 2010-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1581727B1 (fr) | Systeme d aide a la regeneration d un filtre a particul es d une ligne d echappement d un moteur diesel | |
| EP2426326A1 (fr) | Filtre à particules à trois revetements catalytiques | |
| FR2928176A1 (fr) | Procede de regeneration d'un filtre a particules pour moteur a essence et ensemble d'echappement associe | |
| EP3973150B1 (fr) | Système de post-traitement des gaz d'échappement d'une ligne d'échappement d'un moteur à combustion interne à allumage commandé | |
| WO2021170918A1 (fr) | Système de depollution des gaz d'echappement pour un moteur essence | |
| EP1581728B1 (fr) | Systeme d'aide a la regeneration d'un filtre a particules pour ligne d'echappement | |
| WO2001027455A1 (fr) | Procede d'injection de carburant pour un moteur a combustion | |
| WO2010130909A1 (fr) | Circuit de traitement et d'evacuation des gaz d'echappement d'un moteur a combustion a allumage commande | |
| EP3153677A1 (fr) | Dispositif de post-traitement des gaz d'echappement d'un moteur à combustion | |
| FR3029970A1 (fr) | Dispositif de post-traitement des gaz d’echappement d’un moteur a combustion | |
| FR2849671A1 (fr) | Filtre a particules pour ligne d'echappement et ligne d'echappement, systeme d'aide a la regeneration et procede de traitement des gaz d'echappement l'utilisant | |
| FR2849672A1 (fr) | Filtre a particules pour ligne d'echappement, ligne d'echappement ainsi equipee, et systeme d'aide a la regeneration d'un tel filtre a particules | |
| FR3041032A1 (fr) | Dispositif de post-traitement des gaz d’echappement d’un moteur a combustion | |
| FR2882571A1 (fr) | Dispositif de filtrage de particules pour moteur diesel avec recyclage de gaz d'echappement | |
| FR3030304A1 (fr) | Systeme de post-traitement des gaz d'echappement d'un moteur a combustion interne | |
| EP3369905A1 (fr) | Véhicule intégrant un système de post-traitement des gaz d' échappement d'un moteur à combustion | |
| FR2937882A1 (fr) | Procede de dimensionnement d'un catalyseur d'oxydation. | |
| FR2879236A1 (fr) | Filtre a particules a section de canaux variable | |
| EP2708709B1 (fr) | Ligne déchappement avec dispositif de traitement des émissions polluantes d'un moteur thérmique par reduction catalytique, s'affranchissant de réducteur embarque | |
| FR3043430B1 (fr) | Dispositif de post-traitement des gaz d’echappement d’un moteur thermique | |
| FR2927657A3 (fr) | Alimentation en carburant du systeme d'admission de reducteurs dans l'echappement et dispositif de depollution des gaz d'echappement d'un vehicule automobile. | |
| FR2812686A1 (fr) | Systeme d'aide a la regeneration d'un filtre a particules integre dans une ligne d'echappement d'un moteur diesel de vehicule automobile | |
| FR3132326A1 (fr) | Système de filtration de particules pour un moteur thermique à efficacité améliorée et contre-pression optimisée | |
| FR2812687A1 (fr) | Systeme d'aide a la regeneration d'un catalyseur integre dans une ligne d'echappement d'un moteur de vehicule automobile | |
| FR3030618A1 (fr) | Procede de gestion d'un catalyseur d'oxydation de methane et systeme de post-traitement des gaz d'echappement pour sa mise en oeuvre |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2004700266 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2006144039 Country of ref document: US Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 10541549 Country of ref document: US |
|
| WWP | Wipo information: published in national office |
Ref document number: 2004700266 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 10541549 Country of ref document: US |