WO1997030274A1 - Device for the cleaning of exhaust gases from internal combustion engines - Google Patents
Device for the cleaning of exhaust gases from internal combustion engines Download PDFInfo
- Publication number
- WO1997030274A1 WO1997030274A1 PCT/AT1997/000024 AT9700024W WO9730274A1 WO 1997030274 A1 WO1997030274 A1 WO 1997030274A1 AT 9700024 W AT9700024 W AT 9700024W WO 9730274 A1 WO9730274 A1 WO 9730274A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- ceramic
- ceramic body
- discharge electrode
- exhaust gas
- Prior art date
Links
Classifications
-
- 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
- B03C3/60—Use of special materials other than liquids
- B03C3/62—Use of special materials other than liquids ceramics
-
- 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
- B03C3/66—Applications of electricity supply techniques
- B03C3/70—Applications of electricity supply techniques insulating in electric separators
-
- 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
-
- 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
- F01N3/0217—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 the filtering elements having the form of hollow cylindrical bodies
-
- 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
- F01N3/0275—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 electric discharge means
-
- 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
- B03C2201/12—Cleaning the device by burning the trapped particles
-
- 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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/06—Ceramic, e.g. monoliths
Definitions
- the invention relates to a device for cleaning exhaust gases from internal combustion engines, in particular diesel soot filters, according to the preamble of patent claim 1.
- the object of the invention is to prevent these disadvantages by constructive measures.
- the hollow interior of the ceramic body is also closed at the rear by an insulator, preferably by a ceramic stopper, which preferably has a passage of 1-2 mm in diameter through which the internal electrode is subjected to high voltage is supplied.
- the supply of the high voltage at the rear has the advantage that very small soot deposits are already present in this area and, moreover, the field strength at the bushing is so high due to the small diameter of the feed line that there is an immediate burning off of the deposits there Soot comes, which in turn prevents the formation of conductive soot bridges.
- the discharge electrode can be carried by the ceramic body and have the same high-voltage potential as the inner electrode.
- the tendency towards spark formation in the area of the discharge electrode due to the deposited soot is countered according to the invention in that the counter electrode opposite the discharge electrode has a ceramic coating with high electrical resistance.
- the teeth of the discharge electrode have a ceramic coating at their tips with a thickness between 0.05 mm and 0.2 mm and an electrical volume resistance per tip of between 1 megohm and 1 gigohm, preferably between lOMegaohm and 100 Megaohm.
- the ceramic coating of the counterelectrode has a thickness between 0.1 and 0.5 mm and an electrical volume resistance between 1Megaohm.cm 2 and a Gigaohm.cm 2 , preferably between 1 OMegaohm.c ⁇ r and lOOMegaohm.cm 2 .
- the coating of the discharge electrode and / or counter electrode preferably consists of one of the materials A1203, TiO, ZrO and CrO or mixtures thereof.
- the inner electrode arranged on the inside of the ceramic body is arranged at a distance from the inlet side and preferably also from the outlet side of the channels of the ceramic body. This prevents the formation of conductive soot bridges in the inlet and outlet areas of the channels of the ceramic body.
- a PTC thermistor is arranged between the inner electrode which is at high voltage and the inner cylinder surface of the ceramic body.
- the PTC thermistor preferably increases its volume resistance from values below 10 megohm.cm 2 to at least 100 megohm.cm 2 , preferably 300 megohm.cm 2 , with a temperature increase from 100 ° C. to 500 ° C.
- the resistance of the ceramic body decreases too much at higher temperatures, the high voltage at the inner electrode must be reduced, since only a limited power can be drawn from the vehicle electrical system from the power supply unit supplying the high voltage.
- the discharge electrode or counter electrode which is electrically connected in parallel with the inner electrode, would cease to function.
- the PTC thermistor compensates for the resistance of the ceramic body, which decreases at higher temperatures, so that the function of the discharge electrode or the counterelectrode is not impaired. If an inhomogeneous current distribution occurs in the ceramic body, local heating of the ceramic body also results, which can lead to thermal damage to the ceramic body. The local heating regulates the local power supply back via the increasing resistance of the PTC thermistor, which leads to a uniform distribution of the power supplied.
- Fig. 1 shows a longitudinal section through a first embodiment of a device according to the invention.
- 2 shows a longitudinal section through a further embodiment of a device according to the invention.
- FIG. 3 is a sectional view taken along the line III-III of FIG. 2nd
- a ceramic body 1 of circular cross-section is fastened through press mats, wire mesh 3 or the like.
- the hollow cylindrical interior 22 of the ceramic body 1 is closed on both sides by plugs 4, 4 '.
- a metallic layer 6 serving as an outer electrode and lying on the ground is arranged on the outer cylinder wall of the ceramic body 1.
- the ceramic body 1 has continuous channels 20 running in the longitudinal direction, which preferably have the brick structure known from EP-A 537219.
- the two plugs 4, 4 'each have a bushing 23, 23', through which an axially extending, as thin as possible diameter metallic tube 7 is passed, which carries the counterelectrode 28 on the inlet side.
- inserts (not shown) with shafts or ribs running in the axial direction of the pipe can be provided in the bushings 23, 23 'between the pipe 7 and insulators 4, 4'.
- the tube 7 tapers on the outlet side to a connection end 12 which engages in a receiving opening 13 of a cylindrical ceramic holder 10 and is supplied with high voltage via a conductor 11 guided in the holder 10.
- the inner electrode 5 is connected with high voltage via the conductor 11, the connection end 12, the tube 7 and a contact spring 9 attached to the tube 7.
- An electric field builds up in the ceramic body 1 transversely to the channels 20 running through, between the inner electrode 5, which is at high voltage, and the outer electrode 6, which is at ground.
- the tube 7 between the insulators 4, 4 ' can be designed as a spray electrode.
- the ceramic body 1 is preferably produced from a cordierite mass by high pressure extrusion and then fired at high temperatures.
- the ceramic body 1 should have a very low porosity, preferably less than 0.5%.
- the height of the channels is usually between 0.6 and 1 mm and the width of the channels 20 is between 3 and 6 mm, depending on the radial position.
- the discharge electrode is formed by a cylindrical tube body 8 having electron-emitting spray teeth 24, which abuts the tube 2.
- the counterelectrode 28 opposite the discharge electrode 8 has a cylindrical base body which tapers in a conical manner on the inlet side.
- the counter electrode 28 has a ceramic coating tion 14.
- the coating has a thickness of 0.1 to 0.5 mm and has an electrical volume resistance, based on the cm 2 , of 1 megohm.cm 2 to 1 gigohm.cm 2 , preferably from 1OMegaohm.c ⁇ r to 1OOMegaohm.cm 2 .
- the high voltage at the inner electrode 5 and thus at the counter electrode 28 is approximately plus 8 to 12 KV.
- the high voltage is preferably proportional to the volume or mass flow of the exhaust gas within an interval of 2 KV / cm to 6KV / cm in relation to the distance between the inner electrode 5 and the outer electrode 6.
- the exhaust gas loaded with diesel soot particles flowing in at the inlet side A flows into the annular channel 26 formed by the discharge electrode 8 and the counterelectrode 28 against the inlet openings of the channels 20 of the ceramic body 1.
- the exhaust gas components are ionized in the annular channel 26 and penetrate into the channels 20 of the ceramic body 1. Because of the electrical field built up transversely to the channels 20, the soot particles contained in the exhaust gas and charged by the discharge electrode 8 are deposited on the wall surfaces of the channels 20 and electrochemically by a gas plasma formed from emitted electrons due to the high electrical field strength oxidized. Soot particles of the exhaust gas leaving the annular space 26 cannot reach the interior 22 of the ceramic body 1 and thus the inner electrode 5 due to the stopper 4.
- soot particles contained in the exhaust gas will penetrate into the channels 20 and, after being deposited on the walls of the channels 20, will be oxidized by the gas plasma.
- Soot particles, which deposit on the outside of the passage 23 on the stopper 4 or on the tube 5 and form conductive soot bridges there, are burned by sparking due to the small diameter of the tube 7 and the resulting high field strength, so that none are burnt there can form longer conductive soot bridges.
- the internal electrode 5, which is at high voltage, is also protected from the outlet side B by the plug 4 '. At the outlet side B, the exhaust gas emerging from the channels is already largely free of soot particles.
- the small diameter of the pipe 7 or the connection end 12 leads to the occurrence of high field strengths, by means of which the soot deposited there burns through sparking.
- the inner electrode 5 and the outer electrode 6 do not extend over the entire length of the ceramic body 1, so that an almost field-free flow area is retained in the inlet and outlet area of the ceramic body 1. This precludes short-circuiting of the inner electrode 5 with the outer electrode 6 via any soot bridges occurring at the inlet or outlet openings of the channels.
- FIG. 2 shows a section along the main axis of another embodiment. management form of a diesel soot converter.
- the ceramic body 1 is electrically and mechanically separated from the discharge electrode 29.
- the ceramic body 1 which has the continuous channels 20 for the diesel exhaust gases likewise has an annular cross section and is fastened by means of press mats or wire meshes 3 in an enlarged, tubular part of the exhaust pipe 2.
- the hollow inner part 22 of the ceramic body 1 is closed on the inlet side with a non-conductive, preferably ceramic stopper 4.
- An electrically conductive layer is arranged on the inner and outer cylinder jacket of the ceramic body 1, which serves as an inner electrode 5 which is connected to high voltage or as an outer electrode 6 which is connected to ground.
- the hollow interior 22 of the ceramic body 1 is closed on the outlet side by a non-conductive, preferably ceramic stopper 4 ' .
- the stopper 4 ' has a thin bore through which a metal tube 7, which is as thin as possible in diameter, passes and which makes contact with the inner electrode 5 with the aid of a contact spring 9.
- the high voltage is fed to the tube 7 through a conductor 11 arranged in a ceramic cylindrical holder 10.
- the rear end of the tube 7 is tapered to a pin 12 which is electrically connected to the conductor 1 1 and engages in a recess 13 of the holder 10.
- the high voltage values are essentially identical to those of the embodiment according to FIG. 1, however the high voltage at the inner electrode 5 and at the discharge electrode 29 has a negative polarity.
- the discharge electrode 29 is arranged electrically and mechanically separate from the ceramic body 1 in the pipe 2 of the exhaust line.
- the discharge electrode 29 has a basic body 25 which carries cylindrical spray teeth 24 and which has thin, preferably 2 to 4 mm thick pins 18, 18 'on both sides, through which the discharge electrode 8 rests in recesses 19, 19' of ceramic holders 15, 16 is supported.
- the high voltage is supplied to the discharge electrode 29 through a conductor 17 guided in the holder 16 via the pin 18.
- the counter electrode 30 surrounding the discharge electrode 29 is formed by a ceramic coating applied to the tube 2 and having a thickness of 0.1 to 0.5.
- the electrical resistance values correspond to those of the counter electrode 14 in the embodiment according to FIG. 1.
- a PTC thermistor 27 is arranged between the inner electrode 5 and the inner wall 21 of the ceramic body 1 and increases its resistance when the temperature rises.
- the PTC thermistor 27 compensates for the increasing resistance of the ceramic body 1 due to the increase in its resistance.
- the exhaust gas entering A is ionized in the annular space 26 between the discharge electrode 29 and counter electrode 30 and flows through the channels 20 of the ceramic body 1 and leaves the soot filter at B. Because of the electrical field built up between the inner electrode 5 and outer electrode 6, there is a separation of the soot particles contained in the exhaust gas on the side walls of the channels 20. From the walls of the channels 20 pass the temperature causes electrons, which are accelerated towards the soot deposits by the electric field there and initiate an oxidation of the soot deposits upon impact.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
- Electrostatic Separation (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97904288A EP0880642B1 (en) | 1996-02-12 | 1997-02-10 | Device for the cleaning of exhaust gases from internal combustion engines |
AT97904288T ATE188015T1 (en) | 1996-02-12 | 1997-02-10 | DEVICE FOR CLEANING EXHAUST GASES FROM COMBUSTION ENGINE |
JP52881497A JP4005137B2 (en) | 1996-02-12 | 1997-02-10 | Equipment for cleaning exhaust gas from internal combustion engines |
PL97328241A PL328241A1 (en) | 1996-02-12 | 1997-02-10 | Apparatus for purifying combustion engine exhaust gas |
AU17119/97A AU1711997A (en) | 1996-02-12 | 1997-02-10 | Device for the cleaning of exhaust gases from internal combustion engines |
BR9707497-7A BR9707497A (en) | 1996-02-12 | 1997-02-10 | Device for purifying flue gases from internal combustion engines. |
DE59700888T DE59700888D1 (en) | 1996-02-12 | 1997-02-10 | DEVICE FOR PURIFYING EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0024696A ATA24696A (en) | 1996-02-12 | 1996-02-12 | DEVICE FOR PURIFYING EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES |
ATA246/96 | 1996-02-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997030274A1 true WO1997030274A1 (en) | 1997-08-21 |
Family
ID=3485438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AT1997/000024 WO1997030274A1 (en) | 1996-02-12 | 1997-02-10 | Device for the cleaning of exhaust gases from internal combustion engines |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0880642B1 (en) |
JP (1) | JP4005137B2 (en) |
AT (2) | ATA24696A (en) |
AU (1) | AU1711997A (en) |
BR (1) | BR9707497A (en) |
CA (1) | CA2246353A1 (en) |
CZ (1) | CZ254898A3 (en) |
DE (1) | DE59700888D1 (en) |
HU (1) | HUP9901677A3 (en) |
PL (1) | PL328241A1 (en) |
WO (1) | WO1997030274A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2781690A1 (en) * | 1998-08-03 | 2000-02-04 | Ecia Equip Composants Ind Auto | Device for regenerating a particle filter in a vehicle exhaust has electrical heater connected to source of electrical energy in the vehicle |
GB2351923A (en) * | 1999-07-12 | 2001-01-17 | Perkins Engines Co Ltd | Self-cleaning particulate filter utilizing electric discharge currents |
GB2358149A (en) * | 2000-01-14 | 2001-07-18 | Quantum Fuel Technology Ltd | Ionising chamber for reducing exhaust emissions |
AT410761B (en) * | 2001-03-26 | 2003-07-25 | Meier Stauffer Gerd Dr | Soot filter and catalyst for diesel engines includes differential pressure measurement controlling high voltage discharge to burn-off soot |
EP1441112A1 (en) * | 2003-01-15 | 2004-07-28 | Toyota Jidosha Kabushiki Kaisha | An exhaust gas purifying apparatus |
AT503022B1 (en) * | 2006-06-29 | 2007-07-15 | Fleck Carl M Dr | Filter arrangement for separating soot particles from an exhaust flow, comprises electrode arrangement through which exhaust gas flows and which charges soot particles, which are removed from exhaust flow by electrical field or mechanically |
FR2907843A1 (en) * | 2006-10-26 | 2008-05-02 | Renault Sas | Soot particle capturing electrical device for motor vehicle, has inner axial electrodes extending across soot particle agglomeration unit and assembly of radial plates, and passages for exhaust gas arranged in plates around electrodes |
EP1974822A2 (en) * | 2007-03-27 | 2008-10-01 | Rudolf Bolliger | Electrostatic fine dust particulate filter |
DE102010044343A1 (en) * | 2010-09-03 | 2012-03-08 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Device with an annular electrode for reducing soot particles in the exhaust gas of an internal combustion engine |
WO2012028408A1 (en) * | 2010-09-02 | 2012-03-08 | Reinhausen Plasma Gmbh | Device and method for generating a barrier discharge in a gas flow |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10102491C2 (en) * | 2001-01-19 | 2003-04-17 | Walter Hofmann | Method for operating a device in the exhaust system of an internal combustion engine for checking the pollution of the exhaust gas flow with soot particles, and this device |
AT500959B1 (en) * | 2004-11-09 | 2007-05-15 | Carl M Dr Fleck | METHOD AND FILTER ARRANGEMENT FOR SEPARATING RUSSIAN PARTICLES |
AT501888B1 (en) | 2005-06-08 | 2006-12-15 | Fleck Carl M Dr | WAVE FILTER WITH PLANAR ELECTRODES |
CN107684976A (en) * | 2016-08-05 | 2018-02-13 | 刘景文 | Air electrostatic branner |
TWI678233B (en) * | 2019-03-29 | 2019-12-01 | 劉景文 | Combined structure of electrostatic dust cleaning machine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0332609A2 (en) * | 1988-03-11 | 1989-09-13 | Fleck, Carl Maria, Prof. Dr. | Filter for diesel exhaust gas |
FR2637940A1 (en) * | 1988-10-13 | 1990-04-20 | Man Nutzfahrzeuge Ag | METHOD AND DEVICE FOR REMOVING BLACK SMOKE DEPOSITED IN AN EXHAUST GAS FILTER FROM AN INTERNAL COMBUSTION ENGINE |
WO1992000442A1 (en) * | 1990-07-02 | 1992-01-09 | Fleck Carl M | Process and device for cleaning exhaust gases |
JPH05277313A (en) * | 1992-03-31 | 1993-10-26 | Teikoku Piston Ring Co Ltd | Fine particle separating device |
US5348571A (en) * | 1992-01-09 | 1994-09-20 | Metallgesellschaft Aktiengesellschaft | Apparatus for dedusting a gas at high temperature |
-
1996
- 1996-02-12 AT AT0024696A patent/ATA24696A/en unknown
-
1997
- 1997-02-10 EP EP97904288A patent/EP0880642B1/en not_active Expired - Lifetime
- 1997-02-10 WO PCT/AT1997/000024 patent/WO1997030274A1/en not_active Application Discontinuation
- 1997-02-10 AU AU17119/97A patent/AU1711997A/en not_active Abandoned
- 1997-02-10 DE DE59700888T patent/DE59700888D1/en not_active Expired - Fee Related
- 1997-02-10 JP JP52881497A patent/JP4005137B2/en not_active Expired - Fee Related
- 1997-02-10 BR BR9707497-7A patent/BR9707497A/en not_active Application Discontinuation
- 1997-02-10 HU HU9901677A patent/HUP9901677A3/en unknown
- 1997-02-10 CZ CZ982548A patent/CZ254898A3/en unknown
- 1997-02-10 PL PL97328241A patent/PL328241A1/en unknown
- 1997-02-10 CA CA002246353A patent/CA2246353A1/en not_active Abandoned
- 1997-02-10 AT AT97904288T patent/ATE188015T1/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0332609A2 (en) * | 1988-03-11 | 1989-09-13 | Fleck, Carl Maria, Prof. Dr. | Filter for diesel exhaust gas |
FR2637940A1 (en) * | 1988-10-13 | 1990-04-20 | Man Nutzfahrzeuge Ag | METHOD AND DEVICE FOR REMOVING BLACK SMOKE DEPOSITED IN AN EXHAUST GAS FILTER FROM AN INTERNAL COMBUSTION ENGINE |
WO1992000442A1 (en) * | 1990-07-02 | 1992-01-09 | Fleck Carl M | Process and device for cleaning exhaust gases |
US5348571A (en) * | 1992-01-09 | 1994-09-20 | Metallgesellschaft Aktiengesellschaft | Apparatus for dedusting a gas at high temperature |
JPH05277313A (en) * | 1992-03-31 | 1993-10-26 | Teikoku Piston Ring Co Ltd | Fine particle separating device |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 018, no. 058 (C - 1159) 31 January 1994 (1994-01-31) * |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2781690A1 (en) * | 1998-08-03 | 2000-02-04 | Ecia Equip Composants Ind Auto | Device for regenerating a particle filter in a vehicle exhaust has electrical heater connected to source of electrical energy in the vehicle |
US7144448B2 (en) * | 1999-07-12 | 2006-12-05 | Perkins Engines Company Limited | Autoselective regenerating particulate filter |
GB2351923A (en) * | 1999-07-12 | 2001-01-17 | Perkins Engines Co Ltd | Self-cleaning particulate filter utilizing electric discharge currents |
US6660068B1 (en) | 1999-07-12 | 2003-12-09 | Perkins Engines Company Limited | Autoselective regenerating particulate filter |
GB2358149A (en) * | 2000-01-14 | 2001-07-18 | Quantum Fuel Technology Ltd | Ionising chamber for reducing exhaust emissions |
AT410761B (en) * | 2001-03-26 | 2003-07-25 | Meier Stauffer Gerd Dr | Soot filter and catalyst for diesel engines includes differential pressure measurement controlling high voltage discharge to burn-off soot |
CN100365251C (en) * | 2003-01-15 | 2008-01-30 | 丰田自动车株式会社 | Exhause purification device |
EP1441112A1 (en) * | 2003-01-15 | 2004-07-28 | Toyota Jidosha Kabushiki Kaisha | An exhaust gas purifying apparatus |
US7514047B2 (en) | 2003-01-15 | 2009-04-07 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying apparatus |
AT503022B1 (en) * | 2006-06-29 | 2007-07-15 | Fleck Carl M Dr | Filter arrangement for separating soot particles from an exhaust flow, comprises electrode arrangement through which exhaust gas flows and which charges soot particles, which are removed from exhaust flow by electrical field or mechanically |
FR2907843A1 (en) * | 2006-10-26 | 2008-05-02 | Renault Sas | Soot particle capturing electrical device for motor vehicle, has inner axial electrodes extending across soot particle agglomeration unit and assembly of radial plates, and passages for exhaust gas arranged in plates around electrodes |
EP1974822A2 (en) * | 2007-03-27 | 2008-10-01 | Rudolf Bolliger | Electrostatic fine dust particulate filter |
EP1974822A3 (en) * | 2007-03-27 | 2010-12-15 | BorgWarner BERU Systems GmbH | Electrostatic fine dust particulate filter |
WO2012028408A1 (en) * | 2010-09-02 | 2012-03-08 | Reinhausen Plasma Gmbh | Device and method for generating a barrier discharge in a gas flow |
US8696996B2 (en) | 2010-09-02 | 2014-04-15 | Reinhausen Plasma Gmbh | Device and method for generating a barrier discharge in a gas flow |
DE102010044343A1 (en) * | 2010-09-03 | 2012-03-08 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Device with an annular electrode for reducing soot particles in the exhaust gas of an internal combustion engine |
US9169752B2 (en) | 2010-09-03 | 2015-10-27 | Emitec Gesellschaft Fuer Emissionstechnologies Mbh | Device having an annular electrode for decreasing soot particles in the exhaust gas of an internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
HUP9901677A3 (en) | 2000-03-28 |
BR9707497A (en) | 2000-01-04 |
CZ254898A3 (en) | 1998-11-11 |
ATE188015T1 (en) | 2000-01-15 |
EP0880642B1 (en) | 1999-12-22 |
EP0880642A1 (en) | 1998-12-02 |
CA2246353A1 (en) | 1997-08-21 |
AU1711997A (en) | 1997-09-02 |
HUP9901677A2 (en) | 1999-08-30 |
JP2000504805A (en) | 2000-04-18 |
DE59700888D1 (en) | 2000-01-27 |
ATA24696A (en) | 2000-10-15 |
PL328241A1 (en) | 1999-01-18 |
JP4005137B2 (en) | 2007-11-07 |
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