EP0212396A2 - Dispositif pour éliminer la suie ou autres produits semblables des gaz d'échappement de moteurs à combustion interne - Google Patents

Dispositif pour éliminer la suie ou autres produits semblables des gaz d'échappement de moteurs à combustion interne Download PDF

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Publication number
EP0212396A2
EP0212396A2 EP86110665A EP86110665A EP0212396A2 EP 0212396 A2 EP0212396 A2 EP 0212396A2 EP 86110665 A EP86110665 A EP 86110665A EP 86110665 A EP86110665 A EP 86110665A EP 0212396 A2 EP0212396 A2 EP 0212396A2
Authority
EP
European Patent Office
Prior art keywords
exhaust
filter
resonator
soot
end wall
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
EP86110665A
Other languages
German (de)
English (en)
Other versions
EP0212396B1 (fr
EP0212396A3 (en
Inventor
Herbert A. Dipl.-Ing. Püschner
Johann Fürtauer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to AT86110665T priority Critical patent/ATE46937T1/de
Publication of EP0212396A2 publication Critical patent/EP0212396A2/fr
Publication of EP0212396A3 publication Critical patent/EP0212396A3/de
Application granted granted Critical
Publication of EP0212396B1 publication Critical patent/EP0212396B1/fr
Expired 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
    • F01N3/02—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
    • F01N3/028—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 using microwaves
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the invention relates to an apparatus and a method for removing soot or the like. from the exhaust gases of an internal combustion engine, in particular a diesel internal combustion engine, with a microwave source which is coupled to an intermediate piece of the exhaust pipe and excites an electromagnetic field there, and with a soot filter made of dielectric material in the intermediate piece in the flow path of the exhaust gases.
  • soot filter is held by a metal body in the intermediate piece of the exhaust pipe and is flowed through essentially radially by the exhaust gases.
  • the soot filter serves to retain soot particles suspended in the exhaust gases. If the soot deposits exceed a predetermined level, an electromagnetic field is excited in the intermediate piece, whereby the soot is to be burned on the soot filter.
  • a disadvantage of the arrangement known from DE-PS 30 24 539 is that the soot filter is held by a metallic support body which projects coaxially into the intermediate piece and ends a short distance in front of the end wall of the intermediate piece.
  • the electromagnetic field therefore forms essentially between the end wall of the carrier body and the end wall of the intermediate piece.
  • the energy density of the electromagnetic field is therefore negligibly low in the area of the filter mat, the intended combustion of the soot particles deposited on the soot filter cannot be realized for this reason.
  • the area of high energy density namely on the front wall of the support body, there is no filter mat.
  • the object of the invention is to further develop the device and the method of the type mentioned at the outset in such a way that the soot can be effectively removed in a simple manner.
  • the intermediate piece is designed as a cavity resonator and contains a metal grille at each of its two exhaust gas openings, and in that the soot filter is arranged in the cavity resonator in a region of relatively high energy density of the electromagnetic field.
  • the intermediate piece is designed as a cavity resonator in which an electromagnetic field of high energy density can be generated, and that the soot filter is arranged in the region of relatively high energy density, so that the soot particles separated on the soot filter are constantly or during predetermined intervals are burned by the sufficiently strongly excited electromagnetic field.
  • the soot filter Due to the attachment of the soot filter in the area of high energy density, the flow lines of the exhaust gases inevitably also run through this area and are therefore - with sufficient amplitude of the excited electromagnetic field - partially burned during the approach to the soot filter, so that the filter only with part of the soot particles entering the resonator are acted upon.
  • the amount of soot deposited on the soot filter is therefore small per unit of time; In order to fall below a certain soot concentration in the exhaust gases flowing off, a filter with lower efficiency or lower flow resistance may be sufficient.
  • the soot filter can be designed either entirely or in sections in a self-supporting construction.
  • An embodiment of such a self-supporting soot filter has several axially aligned channels. Adjacent channels are closed on opposite end sides, so that the exhaust gases entering the open channels at the end flow through the partition walls made of filter material and on the other end side - in the adjacent channels - emerge from the soot filter.
  • Such an arrangement has the advantage of not requiring a separate support body.
  • soot filter If such a self-supporting soot filter is inserted axially into the flow path of the exhaust gases, a particularly homogeneous guidance of the exhaust gases in the resonator and thus also in the resonator area of high energy density is ensured, whereby the soot particles both during their flow movement and during or after deposition on the filter be burned effectively.
  • the soot filter is designed as a filter mat or filter layer which is arranged on a sufficiently gas-permeable dielectric carrier body.
  • the filter-coated carrier body has the shape of a tube, which extends essentially from the first exhaust opening to the second exhaust opening.
  • one exhaust gas opening of the resonator lies within the filter cross section, and the other exhaust gas opening lies outside the filter cross section, so that the exhaust gases also have to flow through the filter mat and the carrier body when flowing through the cavity resonator.
  • the exhaust gases are introduced within the filter cross-section, they flow through the filter mat provided with an axial and a radial component and then emerge from the resonator in a flow with, for example, an annular cross section through the other exhaust gas opening lying in a ring around the support body and the filter mat .
  • the exhaust gases can flow through the resonator in the opposite direction, they then pass through an annular exhaust gas opening which surrounds the carrier body and the filters is arranged around, into the resonator and out of the resonator through a circular exhaust gas opening within the filter cross section.
  • the filter unit consisting of carrier body and filter mat can be provided at the upstream or downstream end with a conical flow divider, which preferably projects into the adjoining exhaust pipe and forms the central core of the annular exhaust opening.
  • the nominal width of the carrier body is particularly preferably equal to the nominal width of the exhaust gas line adjoining the first end wall, and the exhaust gas opening in this end wall likewise has this nominal width.
  • the exhaust opening on the opposite second end wall is then annular and surrounds the flow divider projecting through this exhaust opening. In this way, unnecessary jumps in diameter between the exhaust pipe and the filter unit are prevented and additional flow resistance is avoided.
  • a dielectric, gas-tight insert is arranged as a tube with a nominal width that is larger than the diameter of the soot filter and the support body and the exhaust pipe and is arranged concentrically to the soot filter and forms the outer wall of the exhaust gas duct in the region of the resonator.
  • the end walls of the resonator can be provided with gas-tight dielectric inserts at a predetermined distance. In this way, the hot exhaust gases are kept away from the walls of the resonator, which is therefore less thermally stressed and is subject to less thermal expansion.
  • These inserts are also suitable to direct the gas flow in the resonator through the areas of relatively high energy density.
  • the greatest energy density of the excited electromagnetic field is either concentrically formed on the inside or outside around the tubular support body / filter mat, so that the flow of the exhaust gases through the resonator runs before and after flowing through the soot filter in the area of high energy density which can also directly burn the suspended moving soot particles.
  • the metal grids on the two exhaust gas openings of the resonator ensure that there is sufficient metallic limitation for the microwave field in the area of the exhaust gas openings, as a result of which the high quality of the resonator required to achieve high energy densities and a homogeneous field profile is achieved and the radiation of microwave energy by the exhaust pipe is effectively suppressed. This creates the prerequisite for being able to generate the high energy density required to burn the suspended or deposited soot particles on the soot filter.
  • the metal grids are advantageously designed as honeycomb grids with a predetermined axial minimum length and extend from the exhaust gas openings into the exhaust gas line. This will change the field configuration in the cavity resonates as little as possible, the areas of high energy density can be specified in the resonator in the known manner.
  • resonators can be coupled by means of coupling elements which couple the microwave energy from one resonator to the adjacent resonator.
  • the resonator and the microwave source are preferably decoupled thermally from the exhaust gas line as effectively as possible.
  • the cooling water system of the internal combustion engine which allows its cooling water to flow through an outer cooling jacket of the resonator, is particularly advantageous for this purpose.
  • the resonator is expediently made of a metal with a low thermal expansion value.
  • the exhaust gases from an internal combustion engine are continuously or during predetermined Operating intervals passed through a soot filter which is arranged in an electromagnetic microwave field of high energy density in order to burn the soot particles suspended in the exhaust gas stream and deposited on the soot filter.
  • a microwave cavity resonator 1 is inserted as an intermediate piece in an exhaust pipe 15 of a diesel internal combustion engine (not shown).
  • the cavity resonator 1 has a first end wall 2, at a predetermined axial distance from it a second end wall 3 and a peripheral wall 4, which in the example shown forms a circular cylinder and connects the end walls 2 and 3 to one another.
  • the exhaust pipe 15 opens out via a first Ab gas opening 6 in the first end wall 2, and via a second exhaust opening 8 in the second end wall 3 into the cavity resonator 1.
  • the exhaust line 15 either passes in one piece or via flange connections into the end walls 2 and 3 or corresponding inlet or outlet connections.
  • the resonator consists of a metal with a low thermal expansion value, for example stainless steel, and may be coated on its inner surface with an electrically highly conductive layer.
  • microwave energy is fed into the resonator 1 at a frequency of a suitable type from a microwave source 18 with a frequency such that the electromagnetic Field with a desired vibration mode, e.g. an E010 mode, which has a decreasing electric field and a decreasing electrical energy density with increasing distance from the axis of the resonator.
  • a desired vibration mode e.g. an E010 mode
  • the two exhaust openings 6, 8 are each provided with a metal grille 14, which e.g. is formed from a thin metal sheet as a honeycomb grid and a predetermined minimum axial length protrudes into the exhaust line 15 in order to generate a sufficient metallic limitation of the resonator volume for the electromagnetic field and nevertheless to be able to pass the exhaust gases through the resonator 1 without greater flow resistance.
  • a metal grille 14 e.g. is formed from a thin metal sheet as a honeycomb grid and a predetermined minimum axial length protrudes into the exhaust line 15 in order to generate a sufficient metallic limitation of the resonator volume for the electromagnetic field and nevertheless to be able to pass the exhaust gases through the resonator 1 without greater flow resistance.
  • a soot filter 20 is arranged coaxially with the exhaust pipe 15, which extends from the first end wall 2 to the second end wall 3.
  • the soot Filter 20 contains a filter mat 22, which is arranged on a gas-permeable, tubular support body 24 made of dielectric material on the inside or outside surface and completely covers this area.
  • the nominal width of the first exhaust opening 6 and the nominal width of the carrier body 24 are equal to the nominal width of the exhaust pipe 15 adjoining the first end wall 2.
  • the opposite second end wall 3 closes the tubular support body 24 with a central section at this end 3a, which forms a conical flow divider 13 protruding into the adjoining exhaust pipe 15.
  • the second exhaust opening 8 is designed in a ring shape, and the end wall 3 merges into the exhaust line 15 with a conical line section 16.
  • the nominal width of the second exhaust opening is larger than the nominal width of the carrier body 24 and the filter mat 22, so that exhaust gases entering through the first exhaust opening 6 pass through the carrier body 24 and the filter mat 22 with a radial movement component when flowing through the resonator 1 and then through the ring-shaped one second exhaust opening 8 leave the resonator 1 again.
  • the index n or m is a measure of the relative axial length L of the resonator, measured in whole multiples of half the resonance wavelength.
  • the generated electromagnetic field burns the soot particles deposited on the filter mat 22, and it can also burn soot particles contained in the exhaust gases if such a vibration mode is used that the energy density in the central area of the resonator increases accordingly.
  • the structure of the device according to FIG. 2 essentially corresponds to that of FIG. 1 with the exception that the exhaust gases enter the resonator through the annular second exhaust opening 8 and then from the outside with a radial component through the filter mat 22 and the support body 24 in the Enter the central interior of the soot filter and then leave the resonator 1 through the first exhaust opening 6.
  • the nominal width of the support body 24 is also equal to the nominal width of the first exhaust gas opening 6, which is equal to the nominal width of the exhaust gas line 15 downstream.
  • the resonator 1 of the device according to FIG. 2 additionally contains a gas-tight dielectric insert 7 which is designed as a tube and has a nominal diameter which corresponds to the nominal diameter of the second exhaust gas opening 8.
  • the insert 7 is arranged over the entire axial length of the resonator 1 from the end wall 2 to the end wall 3. While the insert 7 influences the electromagnetic field in the resonator 1 only insignificantly, it forms an outer boundary wall for the exhaust gas flow, which prevents the exhaust gases from coming into contact with the peripheral wall 4 of the resonator and undesirably heating the resonator.
  • the resonator can preferably be operated as a H010 resonator which receives microwave energy through the waveguide 12 and the coupling hole 10 from the microwave source 18 to excite a H010 mode.
  • the area of high energy density is in the form of a ring zone, so that the tubular soot filter 20 lies in this excellent high-energy area.
  • the soot particles deposited on the filter mat 22 are therefore burned particularly effectively, and the flow resistance is only slightly increased by the filter.
  • the resonator 1 is provided on its two end walls 2 and 3 with equal-sized exhaust gas openings 6, 8, which have the nominal size of the exhaust pipe 15 adjoining on both sides.
  • a metal grid 14 is inserted in each of the two exhaust gas openings 6, 8, which is designed as a honeycomb grid and protrudes into the exhaust pipe 15.
  • a self-supporting soot filter 20 is inserted coaxially with the exhaust line 15, the outer diameter of which is slightly larger than the nominal width of the exhaust line 15 and has a gas-tight outer wall.
  • the self-supporting soot filter 20 contains a plurality of axially aligned channels 21, the intermediate walls of which are made of filter material. Adjacent channels are closed on opposite end sides, so that the exhaust gases entering the channels 21 pass through the intermediate walls and exit at the downstream end in the adjacent channels from the resonator 1 into the exhaust line 15.
  • the microwave source 18 excites an electromagnetic field in the resonator with a suitable vibration mode, which has the maximum energy density in the area of the soot filter 20 and therefore burns the soot particles deposited on the soot filter.
  • a tuning device (not shown) is present in each resonator 1, which ensures compliance with the resonance conditions, for example by an automatic mechanical change in the resonator cavity. Alternatively, the corresponding change in the resonance frequency is also possible.
  • an inherently rigid ring body made of dielectric, ceramic foam can be provided in the exemplary embodiment according to FIG. 1. This embodiment is advantageous if a large filter with a relatively low flow resistance can be implemented in a relatively small resonator volume.
  • the filter mat 22 and its gas-permeable support body 24 can be replaced by a soot filter 20 with axially aligned channels 21 according to the example of FIG. 3, this soot filter 20 in the gas-tight dielectric Insert 7 is arranged.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Exhaust Gas After Treatment (AREA)
EP86110665A 1985-08-08 1986-08-01 Dispositif pour éliminer la suie ou autres produits semblables des gaz d'échappement de moteurs à combustion interne Expired EP0212396B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86110665T ATE46937T1 (de) 1985-08-08 1986-08-01 Vorrichtung zum beseitigen von russ o. dgl. ausden abgasen einer brennkraftmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853528445 DE3528445A1 (de) 1985-08-08 1985-08-08 Vorrichtung und verfahren zum beseitigen von russ o.dgl. aus den abgasen einer brennkraftmaschine
DE3528445 1985-08-08

Publications (3)

Publication Number Publication Date
EP0212396A2 true EP0212396A2 (fr) 1987-03-04
EP0212396A3 EP0212396A3 (en) 1988-01-20
EP0212396B1 EP0212396B1 (fr) 1989-10-04

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Application Number Title Priority Date Filing Date
EP86110665A Expired EP0212396B1 (fr) 1985-08-08 1986-08-01 Dispositif pour éliminer la suie ou autres produits semblables des gaz d'échappement de moteurs à combustion interne

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Country Link
EP (1) EP0212396B1 (fr)
AT (1) ATE46937T1 (fr)
DE (2) DE3528445A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0332609A2 (fr) * 1988-03-11 1989-09-13 Fleck, Carl Maria, Prof. Dr. Filtre de gaz d'échappement de diesel
WO1990014507A1 (fr) * 1989-05-17 1990-11-29 Ford Motor Company Limited Reduction des emissions de gaz toxiques
EP0412019A1 (fr) * 1989-08-04 1991-02-06 Regie Nationale Des Usines Renault Dispositif d'élimination des particules carbonées contenues dans les gaz d'échappement de moteurs thermiques
EP0443625A1 (fr) * 1990-02-23 1991-08-28 Matsushita Electric Industrial Co., Ltd. Elément filtrant et appareil pour le traitement des effluents gazeux
EP0221805B1 (fr) * 1985-10-11 1991-12-11 Regie Nationale Des Usines Renault Procédé de traitement des particules carbonées contenues dans des gaz en circulation, notamment dans les gaz d'échappement de moteurs à allumage par compression
EP0469237A1 (fr) * 1990-08-03 1992-02-05 STROMERZEUGUNG GmbH & CO. ANLAGENBAU KG Procédé et dispositif pour convertir des molécules dans un courant de fluide
US5194078A (en) * 1990-02-23 1993-03-16 Matsushita Electric Industrial Co., Ltd. Exhaust filter element and exhaust gas-treating apparatus
GB2278787A (en) * 1993-06-10 1994-12-14 Daimler Benz Ag Method and apparatus for reducing particles in exhaust gases
EP0635625A1 (fr) * 1993-06-26 1995-01-25 DORNIER GmbH Méthode et appareil d'incinération de la suie d'un filtre pour particules solides d'un moteur diesel
US5402639A (en) * 1990-07-02 1995-04-04 Fleck; Carl M. Device for cleaning exhaust gases
US5453116A (en) * 1994-06-13 1995-09-26 Minnesota Mining And Manufacturing Company Self supporting hot gas filter assembly
EP1438117A1 (fr) * 2001-08-23 2004-07-21 Fleetguard, Inc. Filtre a regeneration et rechauffement localise et efficace
EP1477216A1 (fr) * 2003-05-14 2004-11-17 Levitronix LLC Dispositif de filtration
US7357858B2 (en) 2003-05-14 2008-04-15 Levitronix Llc Filter apparatus
CN107952585A (zh) * 2017-12-06 2018-04-24 佛山早稻田环保节能科技有限公司 一种蜂窝静电场
CN116056793A (zh) * 2021-02-25 2023-05-02 富士电机株式会社 电气集尘装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404285B (de) * 1988-03-11 1998-10-27 Fleck Carl M Dr Vorrichtung zur abscheidung und verbrennung von russpartikeln in dieselabgasen
DE4137771A1 (de) * 1991-11-16 1993-05-19 Kloeckner Humboldt Deutz Ag Elektrisch regenerierbare partikelfiltereinrichtung

Citations (7)

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Publication number Priority date Publication date Assignee Title
US3461261A (en) * 1966-10-31 1969-08-12 Du Pont Heating apparatus
US4152567A (en) * 1977-03-07 1979-05-01 Mayfield Esther O Microwave water heater
DE3024539A1 (de) * 1980-06-28 1982-04-01 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg Vorrichtung zum beseitigen von russ aus den abgasen einer brennkraftmaschine
US4417116A (en) * 1981-09-02 1983-11-22 Black Jerimiah B Microwave water heating method and apparatus
JPS5958114A (ja) * 1982-09-28 1984-04-03 Mitsubishi Electric Corp 内燃機関用フイルタ再生装置
JPS6111414A (ja) * 1984-06-26 1986-01-18 Mitsubishi Electric Corp 車載用燃焼装置
JPS6111416A (ja) * 1984-06-27 1986-01-18 Mitsubishi Electric Corp 車載用燃焼装置

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
DE3024589C2 (de) * 1980-06-28 1982-09-09 Bopp & Reuther Gmbh, 6800 Mannheim Absperrklappe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461261A (en) * 1966-10-31 1969-08-12 Du Pont Heating apparatus
US4152567A (en) * 1977-03-07 1979-05-01 Mayfield Esther O Microwave water heater
DE3024539A1 (de) * 1980-06-28 1982-04-01 Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg Vorrichtung zum beseitigen von russ aus den abgasen einer brennkraftmaschine
US4417116A (en) * 1981-09-02 1983-11-22 Black Jerimiah B Microwave water heating method and apparatus
JPS5958114A (ja) * 1982-09-28 1984-04-03 Mitsubishi Electric Corp 内燃機関用フイルタ再生装置
JPS6111414A (ja) * 1984-06-26 1986-01-18 Mitsubishi Electric Corp 車載用燃焼装置
JPS6111416A (ja) * 1984-06-27 1986-01-18 Mitsubishi Electric Corp 車載用燃焼装置

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* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 155 (M-485)[2211], 4. Juni 1986; & JP-A-61 11 414 (MITSUBISHI DENKI K.K.) 18-01-1986 *
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 155 (M-485)[2211], 4. Juni 1986; & JP-A-61 11 416 (MITSUBISHI DENKI K.K.) 18-01-1986 *
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 164 (M-313)[1601], 28. Juli 1984; & JP-A-59 58 114 (MITSUBISHI DENKI K.K.) 03-04-1984 *

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221805B1 (fr) * 1985-10-11 1991-12-11 Regie Nationale Des Usines Renault Procédé de traitement des particules carbonées contenues dans des gaz en circulation, notamment dans les gaz d'échappement de moteurs à allumage par compression
EP0332609A3 (en) * 1988-03-11 1990-08-01 Carl Maria Dr. Fleck Filter for diesel exhaust gas
EP0332609A2 (fr) * 1988-03-11 1989-09-13 Fleck, Carl Maria, Prof. Dr. Filtre de gaz d'échappement de diesel
WO1990014507A1 (fr) * 1989-05-17 1990-11-29 Ford Motor Company Limited Reduction des emissions de gaz toxiques
EP0412019A1 (fr) * 1989-08-04 1991-02-06 Regie Nationale Des Usines Renault Dispositif d'élimination des particules carbonées contenues dans les gaz d'échappement de moteurs thermiques
FR2650627A1 (fr) * 1989-08-04 1991-02-08 Renault Dispositif d'elimination des particules carbonees contenues dans les gaz d'echappement de moteurs thermiques
EP0443625A1 (fr) * 1990-02-23 1991-08-28 Matsushita Electric Industrial Co., Ltd. Elément filtrant et appareil pour le traitement des effluents gazeux
AU624037B2 (en) * 1990-02-23 1992-05-28 Matsushita Electric Industrial Co., Ltd. Exhaust filter element and exhaust gas-treating apparatus
US5194078A (en) * 1990-02-23 1993-03-16 Matsushita Electric Industrial Co., Ltd. Exhaust filter element and exhaust gas-treating apparatus
US5402639A (en) * 1990-07-02 1995-04-04 Fleck; Carl M. Device for cleaning exhaust gases
EP0469237A1 (fr) * 1990-08-03 1992-02-05 STROMERZEUGUNG GmbH & CO. ANLAGENBAU KG Procédé et dispositif pour convertir des molécules dans un courant de fluide
GB2278787A (en) * 1993-06-10 1994-12-14 Daimler Benz Ag Method and apparatus for reducing particles in exhaust gases
GB2278787B (en) * 1993-06-10 1996-11-06 Daimler Benz Ag Method and apparatus for reducing particles in exhaust gases
EP0635625A1 (fr) * 1993-06-26 1995-01-25 DORNIER GmbH Méthode et appareil d'incinération de la suie d'un filtre pour particules solides d'un moteur diesel
US5453116A (en) * 1994-06-13 1995-09-26 Minnesota Mining And Manufacturing Company Self supporting hot gas filter assembly
EP1438117A1 (fr) * 2001-08-23 2004-07-21 Fleetguard, Inc. Filtre a regeneration et rechauffement localise et efficace
EP1438117A4 (fr) * 2001-08-23 2004-09-29 Fleetguard Inc Filtre a regeneration et rechauffement localise et efficace
EP1477216A1 (fr) * 2003-05-14 2004-11-17 Levitronix LLC Dispositif de filtration
US7357858B2 (en) 2003-05-14 2008-04-15 Levitronix Llc Filter apparatus
CN107952585A (zh) * 2017-12-06 2018-04-24 佛山早稻田环保节能科技有限公司 一种蜂窝静电场
CN116056793A (zh) * 2021-02-25 2023-05-02 富士电机株式会社 电气集尘装置

Also Published As

Publication number Publication date
EP0212396B1 (fr) 1989-10-04
DE3528445C2 (fr) 1991-05-08
DE3666062D1 (en) 1989-11-09
DE3528445A1 (de) 1987-02-19
EP0212396A3 (en) 1988-01-20
ATE46937T1 (de) 1989-10-15

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