EP0256325A2 - Filtre d'élimination des particules de suie, en particulier dans le courant des gas d'échappement d'un moteur diesel - Google Patents

Filtre d'élimination des particules de suie, en particulier dans le courant des gas d'échappement d'un moteur diesel Download PDF

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Publication number
EP0256325A2
EP0256325A2 EP87110439A EP87110439A EP0256325A2 EP 0256325 A2 EP0256325 A2 EP 0256325A2 EP 87110439 A EP87110439 A EP 87110439A EP 87110439 A EP87110439 A EP 87110439A EP 0256325 A2 EP0256325 A2 EP 0256325A2
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EP
European Patent Office
Prior art keywords
filter
filter according
soot particles
exhaust gas
tube
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
EP87110439A
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German (de)
English (en)
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EP0256325B1 (fr
EP0256325A3 (en
Inventor
Christian Bergemann
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Individual
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Individual
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Publication date
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Priority to AT87110439T priority Critical patent/ATE69087T1/de
Publication of EP0256325A2 publication Critical patent/EP0256325A2/fr
Publication of EP0256325A3 publication Critical patent/EP0256325A3/de
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Publication of EP0256325B1 publication Critical patent/EP0256325B1/fr
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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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
    • F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/14—Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity
    • B03C3/155—Filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/49—Collecting-electrodes tubular
    • 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
    • F01N3/01—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust by means of electric or electrostatic separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/04—Ionising electrode being a wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/30—Details of magnetic or electrostatic separation for use in or with vehicles
    • 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
    • F01N2330/10—Fibrous material, e.g. mineral or metallic wool
    • 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 a filter for removing soot particles, in particular from the exhaust gas stream of a diesel engine.
  • soot particles retained by the filter are burned to non-toxic carbon dioxide by the exhaust gas heat.
  • the mechanical filters cause a permanent loss of pressure and power by interrupting the exhaust gas flow.
  • the temperatures of 450 to 600 ° C required for soot combustion can only rarely be reached by the exhaust gas heat. Blockage of the filter and blocking of the exhaust gas flow therefore occur, which not only results in performance losses, but can also lead to engine shutdown.
  • the exhaust gas temperature is increased by adding additional fuel (cf. emission reduction of automobile exhaust gases - diesel engines - VDI report 559, VDI Verlag Düsseldorf, pages 139 to 156).
  • Gravity separation is also known to reduce soot emissions; this sets an electrostatic Grain enlargement of the soot particles ahead.
  • An electrostatic field causes the soot particles to agglomerate; the aggregated soot particles can be collected in a container. The collected soot is then fed into the combustion chamber of the engine and burned there.
  • the effective reduction of the soot in the exhaust gas flow requires, in view of the large amounts of soot that accumulate, a collecting container with a corresponding holding capacity; due to lack of space and free space, a large-volume collection container, in particular for diesel motor vehicles, can hardly be realized, at best only with great effort.
  • the migration and penetration of the soot particles into the waveguide is increased by the suction electrode, which has a greater voltage potential than the waveguide. This is because a second electric field, which is also directed outwards, is created in the waveguide, the highest electric field strength being in the center of the waveguide, ie on the surface of the wire-shaped suction electrode de rules; the suction electrode attracts the charged soot particles.
  • a gas flow opposite the exhaust gas flow flows through the waveguide, entrains the agglomerates concentrated therein and transports them into the combustion chamber of the diesel engine for post-combustion.
  • the invention has for its object to provide a filter and a method for removing soot particles, in particular from the exhaust gas stream of a mobile or stationary diesel engine without the above disadvantages and with a significantly improved efficiency.
  • a tube with filter material and a perforated jacket surface through which the exhaust gas flows the perforated tube preferably being designed as a fabric tube.
  • the invention is based on the knowledge that the soot particles are accelerated radially outward due to the pulsations in the exhaust system with the exhaust gas flow and because of the almost completely open outer surface of the very large-pored, mesh sizes of approx. 1 mm and approx. 0.6 mm wire thickness having fabric tube over the entire circumferential area of the tube unimpeded penetrate into the filter material immediately surrounding the fabric tube, ie, lying against the tube surface, and store it there.
  • Compressed, porous materials such as steel wool, ceramics, mineral foams are suitable as filter material.
  • the invention is also based on the idea that the exhaust gases flowing out of the combustion chamber of the diesel engine contain ionized soot particles which accelerate into the filter material immediately adjacent to the pipe.
  • the kinetic energy of the soot particles when they hit the filter material and the particles that have already been stored support a burn-off of the soot particles stored or temporarily stored in the filter material.
  • the self-regeneration of the filter by burning off the intermediate soot particles is also favored by the heat of the exhaust gas.
  • the burn-off temperature of the soot stored can advantageously be reduced by catalytically coated filter material.
  • the emissivity can be optimized by supporting the deposition by means of an electrostatic field, because by the energy supply from the electrostatic field, the charging of the soot particles and an erosion, which is favored by the branched edge area of the soot particles, are already caused on the way to the pipe surface.
  • the filter housing of a transient motor can e.g. ground through a ground connection. As tests have confirmed, the efficiency of the self-regenerating filter can be increased by up to 90% by means of electrostatic deposition.
  • the migration of the soot particles to be separated is supported in the direction of the lateral surface of the tissue tube serving as the precipitation electrode; from there, the soot particles are transported by the exhaust gases flowing through the surface of the fabric tube into the enveloping filter material and stored there.
  • the diameter of the filter material sheath can be smaller compared to the perforated tube than in the case of a filter which works without electrostatic deposition.
  • the voltage applied to the spray electrode is negative.
  • the negative voltage of the spray electrode which may consist of several wires, results in a corona that is considerably larger than the positive voltage.
  • the pulsating DC voltage can be provided by means of a transformer which is connected to the Car battery is supplied with electrical power. Since the required current is very low, approx. 4 to 5 mA, the electrical system of the vehicle is only slightly loaded; This enables the high voltage, which does not need to exceed about 10 kV, to be implemented easily and safely, the ozone generated in the high voltage field also influencing the chemical reaction of the ionized soot particles and thus promoting the combustion of the soot incorporated into non-toxic carbon dioxide.
  • the tension or compression spring keeps the metal wire, the diameter of which should not be more than 0.3 mm, tensioned, i.e. it compensates for any elongation of the wire caused by the exhaust gas heat.
  • the spring can be arranged, for example, between an insulator and the end of the wire, or it acts on a movable insulator base on the housing of the filter. One on the insulator base, i.e. The spring located outside the hot gas flow cannot burn out.
  • the insulators holding the metal wire can be arranged vertically or horizontally.
  • the insulators should in any case have a length such that flashovers from the spray electrode outlet to the housing wall of the filter are avoided.
  • the housing can advantageously have eccentrically arranged inlet and outlet pipes, which are followed by the connecting pieces, onto which the fabric tube can be plugged, for example, with its ends, or into which it engages with its ends.
  • the off-center position is particularly suitable for horizontally arranged insulators compared to vertical isolas gates are easier to install and dismantle, and are located outside the gas flow in the case of eccentric inlet and outlet pipes which are not aligned with the fabric tube.
  • the fabric tube can advantageously be formed with a radially outwardly projecting, web-like longitudinal seam.
  • a smooth inner jacket surface can be achieved in the interior of the tube by the outwardly directed longitudinal seam in the region of the abutting edges of the mat formed into a tube; Tensions and the skipping of sparks, as cannot be excluded with overlapping abutting edges, do not occur.
  • the exhaust gas flow pulsating through the filter with the soot particles contained therein is passed through an electrostatic field, the soot particles are charged in the electrostatic field, accelerated radially outward and into a filter layer stored and periodically burned off automatically.
  • the soot particles are thus embedded in the filter material concentrically enveloping the exhaust gas flow guide due to the pulsations of the gas flow combined with the effect of the electrostatic field.
  • the exhaust gas heat, the supply of energy from the electrostatic field, the high-voltage ozone and oxidizing substances present in the gas stream cause the soot to be burned off automatically.
  • the voltage in the electrostatic field can advantageously be varied depending on the operation of the motor. At full Operating load of the engine, the exhaust gas temperature is higher than in partial load operation; this results in more favorable burning conditions, so that the energy supply from the electrostatic field and thus the already low electrical power of approximately 50 W can be reduced further accordingly.
  • the exhaust gases coming from an internal combustion engine, not shown, are fed to a filter 1 in the direction of the arrow 2 via an inlet connection 3.
  • the filter 1 consists of a housing 4, which concentrically surrounds a fabric tube 5.
  • the tube 5 extends through the entire housing 4 and connects the inlet connector 3 with an opposite outlet connector 6.
  • the tube 5 is enveloped by filter material 7, which completely fills the space between the outer surface of the tube 5 and the housing 4.
  • the exhaust gas flows through the filter material 7 due to pulsations caused by the exhaust system, soot particles present in the exhaust gas penetrating through the numerous meshes 8 of the fabric tube 5 into the filter material 7 and settling there store.
  • the stored soot particles burn off automatically in the filter material, so that the exhaust gas leaving the filter via the outlet connection 6 is freed of soot particles.
  • the filter 101 has a grounded housing 9, for example connected to ground, with connections 10, 11 for applying a pulsating direct voltage to a spray electrode in the form of a metal wire 12.
  • the metal wire 12 extends in the longitudinal direction through the fabric tube 105 and is on the output side of the inlet and outlet connecting pieces 103 and 106, vertically arranged insulators 13.
  • the spray electrode 12 is stretched between the insulators 13 fixed to the housing 9 by means of bases 14; Any elongations of the spray electrode 12 caused by the hot exhaust gas flow compensate for a spring 15 which, in the embodiment according to FIG. 2, acts on the insulator 13 which is arranged in the region of the inlet connection piece 103 and is not connected to the current.
  • the insulator 13 is pivotally mounted movable in a spherical seat of the base 14; when the spray electrode 12 is elongated, the spring 15 which is supported on the inside of a cap 18 encapsulating the insulator 13 presses the insulator 13 in its seat into a position which compensates for the elongation.
  • an electrostatic field builds up and causes the soot particles introduced into the filter 101 with the exhaust gas stream 102 via the inlet connection 103 to migrate increasingly in the direction of the meshes 108 of the tube 105, through which meshes 108 pass and accumulate in the filter material 107 until the filter regenerates due to the burned-off soot particles; the stored soot burns to non-toxic carbon dioxide.
  • the self-regenerating fitler 101 shown in FIG. 3 with electrostatically assisted separation differs from the filter 101 according to FIG. 2 by the horizontal arrangement of the insulators 113 that clamp the spray electrode 12.
  • the insulators 113 are arranged in covers 16, which are on each end face of the housing 9 are flanged by means of bolts 17.
  • the covers 16 are provided with the inlet and outlet nozzles 103, 106 and inlet and outlet pipes 19, 20 arranged off-center with respect to the nozzles 103, 106.
  • the fabric tube 105 is plugged with its ends onto the connection 103, 106.
  • the fabric tube 5, 105 shown in FIG. 5 has a web-like protruding radially outward Longitudinal seam 22 with laterally angled locking surfaces 23; with the longitudinal seam 22, the fabric tube 5, 105 can for example in grooves of the and outlet ports 3, 6; 103, 106 are inserted and secured in their position via the locking surfaces 23.
EP87110439A 1986-08-01 1987-07-18 Filtre d'élimination des particules de suie, en particulier dans le courant des gas d'échappement d'un moteur diesel Expired - Lifetime EP0256325B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87110439T ATE69087T1 (de) 1986-08-01 1987-07-18 Filter zum entfernen von russpartikeln, insbesondere aus dem abgasstrom eines dieselmotors.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3626020 1986-08-01
DE3626020 1986-08-01

Publications (3)

Publication Number Publication Date
EP0256325A2 true EP0256325A2 (fr) 1988-02-24
EP0256325A3 EP0256325A3 (en) 1988-05-25
EP0256325B1 EP0256325B1 (fr) 1991-10-30

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Family Applications (1)

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EP87110439A Expired - Lifetime EP0256325B1 (fr) 1986-08-01 1987-07-18 Filtre d'élimination des particules de suie, en particulier dans le courant des gas d'échappement d'un moteur diesel

Country Status (4)

Country Link
EP (1) EP0256325B1 (fr)
AT (1) ATE69087T1 (fr)
DE (1) DE3774205D1 (fr)
NL (1) NL8800208A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299197A2 (fr) * 1987-07-16 1989-01-18 MAN Technologie Aktiengesellschaft Filtre électrostatique pour la purification de gaz
EP0329818A2 (fr) * 1988-02-20 1989-08-30 MAN Technologie Aktiengesellschaft Filtre électrostatique pour particules diesel
DE3844141C1 (fr) * 1988-12-28 1990-06-07 Voest-Alpine Automotive Ges.M.B.H., Linz, At
US4956152A (en) * 1989-05-10 1990-09-11 Electro Statics, Inc. Emission control unit
DE3923640A1 (de) * 1989-06-15 1990-12-20 Asea Brown Boveri Verfahren zur ausfilterung von russpartikeln
AT397928B (de) * 1993-03-22 1994-08-25 Panning Peter Vorrichtung zum abbau von in einem gasstrom enthaltenen schadstoffen
US5419126A (en) * 1991-12-25 1995-05-30 Maruyama Mfg. Co. Inc Exhaust silencer
WO1996014498A1 (fr) * 1994-11-07 1996-05-17 Efisio Serra Dispositif pour silencieux d'echappement de moteurs endothermiques, a champ electrostatique
FR2798303A1 (fr) * 1999-09-14 2001-03-16 Daniel Teboul Dispositif de traitement d'un milieu gazeux, en particulier des gaz d'echappement d'un moteur a combustion interne, et vehicule equipe d'un tel dispositif
FR2822893A1 (fr) * 2001-03-29 2002-10-04 Renault Systeme de traitement des gaz d'echappement

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR701007A (fr) * 1930-08-23 1931-03-10 Procédé et dispositif pour supprimer les fumées et pour réduire la quantité d'oxyde de carbone contenu dans les gaz d'échappement des moteurs à explosion
DE2041886A1 (de) * 1969-09-03 1972-03-02 Glaser Willy Dr Ing Filterung von Kraftfahrzeug-Auspuffgas
US3683624A (en) * 1970-09-29 1972-08-15 Theodore M Williams Internal combustion engine exhaust burner
US4211302A (en) * 1976-02-03 1980-07-08 Recourt Martyn Elizabeth De Sound absorbing device
JPS5720510A (en) * 1980-07-15 1982-02-03 Nagatoshi Suzuki Exhaust gas cleaner of engine
JPS58132295A (ja) * 1982-01-29 1983-08-06 三菱電機株式会社 吸音材の製造方法
DE3205185A1 (de) * 1982-02-13 1983-08-25 Wilfried 6238 Hofheim Seitz Verfahren zum herstellen einer schalldaempf-fuellung fuer einen auspufftopf sowie nach diesem verfahren hergestellte schalldaempf-fuellung
US4406119A (en) * 1980-11-21 1983-09-27 Nippon Soken, Inc. Carbon-particle decontaminating system
EP0176657A1 (fr) * 1984-09-20 1986-04-09 Mitsubishi Denki Kabushiki Kaisha Silencieux pour les gaz d'échappement des moteurs à combustion interne
DE3440689A1 (de) * 1984-11-07 1986-05-15 Siemens AG, 1000 Berlin und 8000 München Verfahren zum vermindern von schadstoffen in auspuffgasen von kraftfahrzeugen

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR701007A (fr) * 1930-08-23 1931-03-10 Procédé et dispositif pour supprimer les fumées et pour réduire la quantité d'oxyde de carbone contenu dans les gaz d'échappement des moteurs à explosion
DE2041886A1 (de) * 1969-09-03 1972-03-02 Glaser Willy Dr Ing Filterung von Kraftfahrzeug-Auspuffgas
US3683624A (en) * 1970-09-29 1972-08-15 Theodore M Williams Internal combustion engine exhaust burner
US4211302A (en) * 1976-02-03 1980-07-08 Recourt Martyn Elizabeth De Sound absorbing device
JPS5720510A (en) * 1980-07-15 1982-02-03 Nagatoshi Suzuki Exhaust gas cleaner of engine
US4406119A (en) * 1980-11-21 1983-09-27 Nippon Soken, Inc. Carbon-particle decontaminating system
JPS58132295A (ja) * 1982-01-29 1983-08-06 三菱電機株式会社 吸音材の製造方法
DE3205185A1 (de) * 1982-02-13 1983-08-25 Wilfried 6238 Hofheim Seitz Verfahren zum herstellen einer schalldaempf-fuellung fuer einen auspufftopf sowie nach diesem verfahren hergestellte schalldaempf-fuellung
EP0176657A1 (fr) * 1984-09-20 1986-04-09 Mitsubishi Denki Kabushiki Kaisha Silencieux pour les gaz d'échappement des moteurs à combustion interne
DE3440689A1 (de) * 1984-11-07 1986-05-15 Siemens AG, 1000 Berlin und 8000 München Verfahren zum vermindern von schadstoffen in auspuffgasen von kraftfahrzeugen

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Title
JAPANESE PATENTS GAZETTE, Sektion CH, Woche 8337, 26. Oktober 83, Derwent Publications LTD, London, GB; & JP-A-58 132 295 (MITSUBISHI ELECTRIC CORP.) 06-08-1983 *
PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 83 (M-130)[961], 21. Mai 1982; & JP-A-57 20 510 (NAGATOSHI SUZUKI) 03-02-1982 *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299197A3 (fr) * 1987-07-16 1990-09-26 MAN Technologie Aktiengesellschaft Filtre électrostatique pour la purification de gaz
US4871515A (en) * 1987-07-16 1989-10-03 Man Technologie Gmbh Electrostatic filter
EP0299197A2 (fr) * 1987-07-16 1989-01-18 MAN Technologie Aktiengesellschaft Filtre électrostatique pour la purification de gaz
EP0329818A2 (fr) * 1988-02-20 1989-08-30 MAN Technologie Aktiengesellschaft Filtre électrostatique pour particules diesel
EP0329818A3 (fr) * 1988-02-20 1990-06-20 MAN Technologie Aktiengesellschaft Filtre électrostatique pour particules diesel
EP0376915A3 (fr) * 1988-12-28 1990-11-07 VOEST-ALPINE AUTOMOTIVE Gesellschaft m.b.H. Convertisseur de suie électrostatique
EP0376915A2 (fr) * 1988-12-28 1990-07-04 VOEST-ALPINE AUTOMOTIVE Gesellschaft m.b.H. Convertisseur de suie électrostatique
DE3844141C1 (fr) * 1988-12-28 1990-06-07 Voest-Alpine Automotive Ges.M.B.H., Linz, At
US4956152A (en) * 1989-05-10 1990-09-11 Electro Statics, Inc. Emission control unit
DE3923640A1 (de) * 1989-06-15 1990-12-20 Asea Brown Boveri Verfahren zur ausfilterung von russpartikeln
US5419126A (en) * 1991-12-25 1995-05-30 Maruyama Mfg. Co. Inc Exhaust silencer
EP0616835A1 (fr) * 1993-03-22 1994-09-28 Peter Panning Dispositif pour la dégradation de matières nuisible contenues dans un courant de gaz
AT397928B (de) * 1993-03-22 1994-08-25 Panning Peter Vorrichtung zum abbau von in einem gasstrom enthaltenen schadstoffen
US5758495A (en) * 1993-11-07 1998-06-02 Serra; Efisio Device for exhaust silencers of engines with electrostatic field
WO1996014498A1 (fr) * 1994-11-07 1996-05-17 Efisio Serra Dispositif pour silencieux d'echappement de moteurs endothermiques, a champ electrostatique
FR2798303A1 (fr) * 1999-09-14 2001-03-16 Daniel Teboul Dispositif de traitement d'un milieu gazeux, en particulier des gaz d'echappement d'un moteur a combustion interne, et vehicule equipe d'un tel dispositif
WO2001019525A1 (fr) * 1999-09-14 2001-03-22 Daniel Teboul Dispositif de traitement des gaz d'echappement d'un moteur a combustion interne
KR100760242B1 (ko) * 1999-09-14 2007-09-19 다니엘 떼블 입자가 많은 가스 매체의 처리 장치 및 이를 구비한 차량
FR2822893A1 (fr) * 2001-03-29 2002-10-04 Renault Systeme de traitement des gaz d'echappement

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EP0256325B1 (fr) 1991-10-30
ATE69087T1 (de) 1991-11-15
NL8800208A (nl) 1989-08-16
EP0256325A3 (en) 1988-05-25
DE3774205D1 (de) 1991-12-05

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