EP1304455A1 - Filtre à particules pour la purification de gaz d'échappement de moteurs - Google Patents

Filtre à particules pour la purification de gaz d'échappement de moteurs Download PDF

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Publication number
EP1304455A1
EP1304455A1 EP02023261A EP02023261A EP1304455A1 EP 1304455 A1 EP1304455 A1 EP 1304455A1 EP 02023261 A EP02023261 A EP 02023261A EP 02023261 A EP02023261 A EP 02023261A EP 1304455 A1 EP1304455 A1 EP 1304455A1
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EP
European Patent Office
Prior art keywords
heating means
particle
particulate filter
particle filter
filter according
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.)
Granted
Application number
EP02023261A
Other languages
German (de)
English (en)
Other versions
EP1304455B1 (fr
Inventor
Peter Dr.-Ing. Zima
Roman Dr.Rer.Nat. Baican
Ronny Dipl.-Ing. Mönnig
Bruce Dr. Peter
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.)
GM Global Technology Operations LLC
Original Assignee
Adam Opel 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 Adam Opel GmbH filed Critical Adam Opel GmbH
Publication of EP1304455A1 publication Critical patent/EP1304455A1/fr
Application granted granted Critical
Publication of EP1304455B1 publication Critical patent/EP1304455B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • 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
    • F01N3/02—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
    • F01N3/027—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 electric or magnetic heating means
    • 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
    • F01N3/0821—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with 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
    • 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
    • F01N3/0885—Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/04—Sulfur or sulfur oxides
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/10—Carbon or carbon oxides
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/12—Hydrocarbons
    • 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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides

Definitions

  • the present invention relates to a particle filter for cleaning engine exhaust, with cup-shaped trained inlet channels, the end with are provided with an inlet channel floor and into which particle-laden ones Exhaust gases flow in, as well as adjacent in parallel arranged to the inlet channels and vice versa pot-shaped outlet channels, each are provided at the end with an outlet channel floor and which derive the cleaned exhaust gases, whereby the filtering on the porous, flowed through wall sections deposits a particle layer from the inlet channel, the regeneration of the particle filter electrical heating means is burnable.
  • Particle filters of this type are commonly used for this used, the particle emission in exhaust gases from Internal combustion engines - especially diesel engines - too to reduce.
  • the technical effort to meet stricter Emissions standards are significant with the current possibilities. So does a prescribed reduction in Particle emissions by over 90%, for example Diesel vehicles with particle filters are essential and also requires active measures for suffocation. This is based on realistic estimates Allow more fuel consumption of over 5% because the required to be switched on in the exhaust gas flow Filter arrangement cause an increased energy requirement.
  • the energy requirement increases with increasing sootiness of the Particle filter, i.e. with an increasing particle layer. However, the particle layer is burned off can be removed in order to regenerate the particle filter again.
  • a generic particle filter is from the US 6,101,793 known.
  • the one made of a porous ceramic material existing particle filter has elongated cup-shaped trained inlet channels into which the from Intake of particle-laden exhaust gases generated by the diesel engine.
  • Outlet channels are parallel to the inlet channels arranged which the cleaned by filtering Discharge exhaust gases to the atmosphere.
  • the outlet channels are also cup-shaped, but vice versa aligned with the inlet channels. With this arrangement the filtering takes place when the porous common flows through Wall sections, being on the part of the inlet duct forms a particle layer.
  • the inlet channels as well the outlet channels here have a square Cross section on.
  • the bottom areas of the pot-shaped channels are formed by various plugs, which are the channels according to their orientation described above close at one end.
  • the particle filter is made of an outer tubular filter part built, in which an inner, smaller tubular Filter part is used coaxially.
  • This second filter part is on the flow of the exhaust gases laden with particles Side closed and thus forms a pot-shaped Outlet channel.
  • the one between the second filter part and the area formed by the first filter part also to be regarded as a pot-shaped inlet duct.
  • a cylinder tube-shaped and with openings provided sieve-like heating means is provided sieve-like heating means.
  • the particle-laden exhaust gases flowing past transport during regeneration of the particle filter the heat generated by the electrical heating medium to the Particle layer continues, which thereby burns.
  • the electrical heating medium according to this state of the Technology integrated directly into the exhaust gas flow, so that no additional means to generate a heated Airflow are required; nevertheless required the operation of the large-area cylindrical Heating means a very high amount of energy.
  • the invention closes the technical teaching a, the electrical heating means of a particle filter in at least some of the outlet channels in the area of the outlet duct floor that the by the Heat emitted by electrical heating means burns off the one located in the adjacent inlet ducts Particle layer triggers.
  • Electric heating means is that this Exhaust gas flow when entering the particle filter is not is disturbed. Because the electrical heating means in one Area of the exhaust ducts are not in the area the exhaust gas flow is located, the introduced electrical energy for heat generation clearly better used. As a result, the electrical Heat given off mainly by Transfer heat radiation to the neighboring filter walls become.
  • the ignition temperature for the particle layer depends on the soot distribution, especially on the Layer thickness and the packing density as well as the soot quality about the filter length. Since with the exhaust gas flow the the heat generated by the electrical heating means is transported further As a result, the particle layers are heated Wall sections what regeneration of the particle filter supported.
  • the cleaned exhaust gas can also cause corrosion processes avoided as a result of soot and ash deposits become.
  • the particle filter designed according to the invention enables self-sustaining regeneration, too immediately after an engine cold start in idle mode.
  • the electrical heating means radiate because of their high surface temperature heat from the adjacent Wall sections is added. This amount of heat regeneration starts on the inlet side of the Particulate filter. Some of the heat is turbulent Currents in the outlet channels to those there Wall sections released, whereby heating takes place. This will produce that generated by the electrical heating means Heat better used for regeneration and one Interruption of soot burning with a very high probability prevented.
  • the self-supporting oxidation the particle layer then moves in the direction of flow of the exhaust gas up to the gas outlet side and thus represents the original exhaust back pressure of the particle filter in the unloaded state, i.e. without a particle layer, again.
  • each outlet duct has an electrical Heating medium is equipped. With a square Channel cross section can thus the number of required electric heating medium to 25% of the number of outlet channels be reduced.
  • the electrical heating means with a pulse width modulated Supply voltage operated.
  • This pulse width modulated Supply voltage only needs one short defined period of time are maintained, which burning of the particle layer starts. After this Start triggered via the electrical heating means the further burning process due to the exothermic reaction automatically continue. Through the minimization thus achieved of the electrical energy requirement becomes the on-board electrical system vehicle powered by a diesel engine.
  • the Electric heating means are advantageously at least partly connected in series. Consequently leads to the burning of individual electrical heating means not to the failure of the entire particle filter. Separate Groups of heating means connected in series enable the particle filter to be heated in sectors.
  • the electrical heating means are preferred starting from the assigned outlet duct floor into the outlet duct arranged protruding, to the extent that optimal blasting into the neighboring edge areas the inlet channels can be achieved.
  • the electrical In this respect, heating agents do not need to go very far into the outlet duct protrude to their function according to the invention to fulfill.
  • the particle filter is made up of two parts. This consists of a disc-shaped outlet channel bottom Particulate filter cover part, on its contact side attached the heating medium to a particle filter main part are.
  • the particle filter cover part thus fulfills on the one hand the function of a carrier for the electrical On the other hand also serves to form the Auslasskanalböden.
  • Both parts of the particle filter are preferably made made of the same filter material and can Detachment are generated.
  • the outlet duct floors can by correspondingly introduced into the particle filter cover part Plug elements are formed.
  • the electrical Heating means are preferred on the particle filter cover part by gluing with a temperature resistant Adhesive attached. Alternatively, it is also conceivable the heating means releasably into the outlet channel floors of the Particulate filter cover part, which is an easier one Interchangeability guaranteed in case of repair.
  • the attached to the contact side of the particle filter cover part Heating means are preferably in corresponding Recesses, so that a overall flat contact side to the particle filter main part there arises.
  • the Heating medium also in the outlet duct sections of the particle filter cover part protruding towards the inlet side arranged and therefore entirely on the part of the thicker particle filter cover part.
  • the heating means do not necessarily have to in a certain direction along an outlet duct be arranged.
  • the length of the outlet duct sections of the particle filter cover part should be slightly larger than the length of the heating elements themselves.
  • a flow gap can also be maintained, whereby the duct in the main part of the particle filter compared to the Particulate filter cover part by appropriately inserted Plug elements should be offset to be a cheap one To create flow guidance.
  • Over the existing Flow gap can advantageously be the electrical Wiring of the heating elements can be realized. in this respect can be a sealed combination of both Filter parts can be dispensed with.
  • the particle filter designed according to the invention can according to another improve the invention Measure to be used as part of a filter arrangement, in which the particulate filter has a nitrogen oxide separator module is connected downstream.
  • the nitrogen oxide separator module comes directly on the gas outlet side of the particle filter to the system.
  • the nitrogen oxide separator module is used for the final embroidery of the exhaust gas, including one Desulfation can be carried out advantageously. This modular arrangement enables significant savings on platinum-containing coating materials.
  • the filter arrangement described above another particle filter can be added which in turn is followed by another nitrogen oxide separator module can.
  • This further particle filter is preferred unheated and provided with a catalytic coating.
  • the multiple arrangement increases the efficiency of the Filtering significantly.
  • the modular structure of the filter arrangement also offers significant energetic benefits. So is due to the compact design, heat integration for Reduction of energy requirements possible and at the same time can the regeneration of uncoated particle filters emerging gas components CO and HC immediately for Regeneration of the subsequent nitrogen oxide separator module used and thus dismantled.
  • the particle filter 2 is with electrical heating means 4 equipped for regeneration, which is shown below Position to be described in more detail.
  • the nitrogen oxide separator module 5 is with a provided suitable catalyst material and serves Elimination of harmful substances contained in the exhaust gases Nitrogen oxides.
  • the nitrogen oxide separator module 5 a further particle filter 6 downstream, but here unheated is.
  • the regeneration of this unheated particle filter 6 is on the heating means 4 of the front particle filter 2 by the heat from the particle oxidation in the particle filter 2 taken over. The heat required for this is forwarded accordingly via the exhaust gas flow.
  • the unheated particle filter 6 is with a catalytic Provide coating.
  • modular design follows the unheated particle filter 6 finally another nitrogen oxide separator module 7.
  • the filter arrangement alternating over this cleaned exhaust gases 8 after leaving the Housing 1 to the atmosphere.
  • FIG. 2 there is the heatable particle filter 2 from cup-shaped inlet channels 9, and arranged in parallel adjacent to the inlet channels 9 Outlet channels 10.
  • the inlet channels 9 at the end with an inlet channel floor 11 provided; the outlet channels 10 are on the input side an outlet channel floor 12 closed.
  • the particle-laden flow into the inlet channels 9 Exhaust gases 3 for filtering.
  • the porous wall sections 13 settles on the part of the inlet channel 9 shows a particle layer 14 on the wall sections 13 from.
  • Electric heating means 15a, 15b provided in the Outlet channels 10 in the area of the outlet channel bottom 12 are arranged.
  • the electric heating means 15a, 15b with a pulse width modulated Supply voltage operated by a generator unit 16, starting from the voltage source 17 is generated.
  • the electrical heating means 15 are designed in the manner of a coiled cantal wire and are based on the assigned outlet duct floor 12 arranged protruding into the outlet channel 10.
  • the output from the electrical heating means 15 Heat radiation penetrates the wall sections 13 in Area of the associated outlet channel floors 12, heated the coating up to the activation temperature and triggers the burning of the in the adjacent inlet channels 9 located particle layer 14.
  • outlet channels 10a each unheated outlet channels 10b.
  • the unheated outlet channels 10b are opposite the heated outlet channels 10a not provided with an electrical heating means 15.
  • the outlet channels 10 and 10 have the inlet channels 9 have a square cross-section, so that with the arrangement of the electrical heating means shown 15 only 25% of the outlet channels 10 with one Electric heating means 15 are to be provided to enable complete regeneration of the particle filter 2.
  • the particulate filter 2 constructed in two parts and consists of an inlet side disk-shaped particle filter cover part 18, which has a contact side 20 which with a Particulate filter main part 19 comes into contact.
  • the particle filter cover part 17 serves primarily for attachment or inclusion of the heating means 15.
  • the heating means 15 are in this embodiment by gluing with a temperature resistant Adhesive with the particle filter cover part 18 connected. To in the attached state of the Heating means 15 a flat contact side 20 to the particle filter main part To form 19, the heating means 15 are within corresponding recesses on the contact side 20 of the particle filter cover part 18 inserted.
  • the length of the outlet duct sections 10a of the particle filter cover part 18a is somewhat larger than the length of the heating elements 15a.
  • the channel guide in the particle filter main part 19a compared to the particle filter cover part 18a by appropriately introduced Plug elements 21a are offset so as to be inexpensive To create flow guidance. Over the existing flow gap 22 the electrical wiring of the Heating elements 15a.

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  • 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)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)
EP02023261A 2001-10-18 2002-10-17 Filtre à particules pour la purification de gaz d'échappement de moteurs Expired - Lifetime EP1304455B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10151425A DE10151425A1 (de) 2001-10-18 2001-10-18 Partikelfilter zum Reinigen von motorischen Abgasen
DE10151425 2001-10-18

Publications (2)

Publication Number Publication Date
EP1304455A1 true EP1304455A1 (fr) 2003-04-23
EP1304455B1 EP1304455B1 (fr) 2009-09-30

Family

ID=7702906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02023261A Expired - Lifetime EP1304455B1 (fr) 2001-10-18 2002-10-17 Filtre à particules pour la purification de gaz d'échappement de moteurs

Country Status (3)

Country Link
EP (1) EP1304455B1 (fr)
AT (1) ATE444437T1 (fr)
DE (2) DE10151425A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004079170A1 (fr) * 2003-03-08 2004-09-16 Johnson Matthey Public Limited Company Systeme d'echappement pour moteur a combustion interne a melange pauvre, comprenant un filtre a particules et un absorbant de nox
EP1496212A1 (fr) * 2003-07-08 2005-01-12 Toyota Jidosha Kabushiki Kaisha Dispositif de purification des gaz d'échappement d'un moteur
EP1902202A1 (fr) * 2005-05-21 2008-03-26 Umicore AG & Co. KG Groupe de filtration sans obstruction a rendement eleve
DE102016110527A1 (de) * 2016-06-08 2017-12-14 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Partikelfilter für eine Verbrennungskraftmaschine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10308675A1 (de) * 2003-02-28 2004-09-09 Adam Opel Ag Regenerierbares Partikelfilter
US7469532B2 (en) * 2005-09-22 2008-12-30 Gm Global Technology Operations, Inc. Diesel particulate filter (DPF) regeneration by electrical heating of resistive coatings
DE102006059966A1 (de) * 2006-12-19 2008-06-26 GM Global Technology Operations, Inc., Detroit Partikelfilter
DE102008050019B4 (de) * 2007-10-04 2020-07-09 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) System und Verfahren zur variablen Leistungsverteilung für zonenweise Regeneration eines elektrisch beheizten Partikelfilters
US8146350B2 (en) 2007-10-04 2012-04-03 GM Global Technology Operations LLC Variable power distribution for zoned regeneration of an electrically heated particulate filter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4512786A (en) * 1982-04-21 1985-04-23 Mazda Motor Corporation Exhaust gas purifying device
US4519820A (en) * 1982-08-05 1985-05-28 Nippondenso Co., Ltd. Fitter apparatus for purifying exhaust gases
US4872889A (en) * 1987-04-11 1989-10-10 Fev Motorentechnik Gmbh & Co., Kg Filter system for the removal of engine emission particulates
JPH05163929A (ja) * 1991-12-12 1993-06-29 Nippondenso Co Ltd 排気微粒子浄化装置
EP0632189A1 (fr) * 1993-06-03 1995-01-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Purificateur de gaz d'échappement
US5782941A (en) 1996-09-23 1998-07-21 Sumitomo Electric Industries, Ltd. Particulate trap for diesel engine
US6101793A (en) 1997-04-22 2000-08-15 Matsushita Electric Industrial Co., Ltd. Exhaust gas filter, method of producing the same, and exhaust gas purification apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838589C1 (fr) * 1988-11-14 1989-12-28 Voest-Alpine Automotive Ges.M.B.H., Linz, At
JPH04179818A (ja) * 1990-11-14 1992-06-26 Nippon Soken Inc 排気ガス微粒子浄化装置
JPH10121941A (ja) * 1996-10-18 1998-05-12 Sumitomo Electric Ind Ltd 排気ガス浄化装置
FR2779177B1 (fr) * 1998-05-29 2000-06-30 Renault Dispositif d'echappement a filtre a particules

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4512786A (en) * 1982-04-21 1985-04-23 Mazda Motor Corporation Exhaust gas purifying device
US4519820A (en) * 1982-08-05 1985-05-28 Nippondenso Co., Ltd. Fitter apparatus for purifying exhaust gases
US4872889A (en) * 1987-04-11 1989-10-10 Fev Motorentechnik Gmbh & Co., Kg Filter system for the removal of engine emission particulates
JPH05163929A (ja) * 1991-12-12 1993-06-29 Nippondenso Co Ltd 排気微粒子浄化装置
EP0632189A1 (fr) * 1993-06-03 1995-01-04 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Purificateur de gaz d'échappement
US5782941A (en) 1996-09-23 1998-07-21 Sumitomo Electric Industries, Ltd. Particulate trap for diesel engine
US6101793A (en) 1997-04-22 2000-08-15 Matsushita Electric Industrial Co., Ltd. Exhaust gas filter, method of producing the same, and exhaust gas purification apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004079170A1 (fr) * 2003-03-08 2004-09-16 Johnson Matthey Public Limited Company Systeme d'echappement pour moteur a combustion interne a melange pauvre, comprenant un filtre a particules et un absorbant de nox
US7930881B2 (en) 2003-03-08 2011-04-26 Johnson Matthey Public Limited Company Exhaust system for lean burn IC engine including particulate filter and NOx absorbent
US8752367B2 (en) 2003-03-08 2014-06-17 Johnson Matthey PLLC Exhaust system for lean burn IC engine including particulate filter and NOx absorbent
EP1496212A1 (fr) * 2003-07-08 2005-01-12 Toyota Jidosha Kabushiki Kaisha Dispositif de purification des gaz d'échappement d'un moteur
US7338642B2 (en) 2003-07-08 2008-03-04 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification device for engine
EP1902202A1 (fr) * 2005-05-21 2008-03-26 Umicore AG & Co. KG Groupe de filtration sans obstruction a rendement eleve
DE102016110527A1 (de) * 2016-06-08 2017-12-14 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Partikelfilter für eine Verbrennungskraftmaschine

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EP1304455B1 (fr) 2009-09-30
DE10151425A1 (de) 2003-04-30
DE50213879D1 (de) 2009-11-12

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