EP0433598A1 - Procédé de régénération d'un filtre à suie pour moteurs diesel, et dispositif pour la réalisation du procédé - Google Patents

Procédé de régénération d'un filtre à suie pour moteurs diesel, et dispositif pour la réalisation du procédé Download PDF

Info

Publication number
EP0433598A1
EP0433598A1 EP90119972A EP90119972A EP0433598A1 EP 0433598 A1 EP0433598 A1 EP 0433598A1 EP 90119972 A EP90119972 A EP 90119972A EP 90119972 A EP90119972 A EP 90119972A EP 0433598 A1 EP0433598 A1 EP 0433598A1
Authority
EP
European Patent Office
Prior art keywords
resonance
soot
exhaust gas
filter
burners
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
EP90119972A
Other languages
German (de)
English (en)
Other versions
EP0433598B1 (fr
Inventor
Dietmar Ing. Grad. Henkel
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge 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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Publication of EP0433598A1 publication Critical patent/EP0433598A1/fr
Application granted granted Critical
Publication of EP0433598B1 publication Critical patent/EP0433598B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
    • F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
    • F01N3/0256—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases the fuel being ignited by electrical 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/14—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a fuel burner
    • 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
    • F01N2290/00—Movable parts or members in exhaust systems for other than for control purposes
    • F01N2290/08—Movable parts or members in exhaust systems for other than for control purposes with oscillating or vibrating movement
    • 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
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/30—Arrangements for supply of additional air
    • 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
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/36—Arrangements for supply of additional fuel
    • 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 method for regenerating a soot filter of a diesel internal combustion engine, in which the exhaust gas is fed to two coupled Helmholtz resonators in such a way that by periodic adiabatic compression of the exhaust gas column vibrating in the resonators, excited by ignition of a burner clocked in resonance frequency Ignition temperature of soot is exceeded and the filter downstream of a resonance tank is regenerated by burning off the soot.
  • the exhaust gas located in the Helmholtz resonator can be excited to produce resonance vibrations. If an increase in pressure builds up again in the second resonant after a pressure drop, the exhaust gas is adiabatically compressed with the resultant temperature rise, which is sufficient to ignite the soot in the adjacent soot filter, so that the soot is destroyed by combustion.
  • a disadvantage of such a device is that the first resonant has an effect on the internal combustion engine, since the pressure increase in the first resonator increases the back pressure in the exhaust pipe, which results in a reduction in performance and a deterioration in the efficiency of the internal combustion engine.
  • the installation of self-closing flaps in the exhaust pipe reduces the reaction from the first resonator, but there is a short-term increase in backpressure of the exhaust gas in front of the temporarily closed flap, which also has an adverse effect.
  • DE-PS 29 30 969 it is proposed to install a flap in the exhaust pipe after the soot filter, which can be closed briefly from time to time, so that the exhaust gases accumulate and the soot deposited in the filter results from the increase in temperature resulting from the compression ignites and burns.
  • This device also has the disadvantage that the flap temporarily increases the back pressure and the useful power and efficiency of the internal combustion engine decrease.
  • the object of the invention is to avoid a retroactive effect of the regeneration system on the internal combustion engine without the regeneration itself suffering from a reduction in quality.
  • the second burner which is operated in push-pull mode in the first burner, in the plane of symmetry of the resonance tube located between the two resonators causes the interference wave to cancel out the pressure wave emanating from the clocked burners, so that a reaction to the exhaust pipe flowing into the center of the resonance tubes is prevented.
  • the exhaust gas in the resonators is subjected to pulsating adiabatic compression by the burners, which are clocked at the resonance frequency.
  • the resulting intermittent temperature rise causes the soot to burn off in the adjacent soot filters so that they are regenerated.
  • a device for carrying out the method according to the invention is characterized by the characterizing features of claim 4.
  • the identical resonance tanks with the burners ensure that the pressure waves in the center of the resonance tube are completely extinguished. Since the exhaust gas is supplied at a point at which the pressure waves are canceled out by interference, a reaction to the exhaust line and the internal combustion engine is reliably avoided.
  • the soot filter By installing the soot filter in the resonance tank, the adiabatically heated fuel gases come into close contact with the soot-laden filter surface. In addition, the waste heat losses are noticeably reduced, since the heat-exchanging surface is reduced, which creates the boundary conditions for a good combustion of the soot due to the increased temperature in the resonance tank.
  • the kinetic energy of the exhaust gas is converted into static pressure energy with little loss, which can be used for a further adiabatic temperature increase without increasing the back pressure in the exhaust pipe.
  • FIG. 1 shows a schematic representation of an exhaust gas routing of a diesel internal combustion engine 1.
  • the exhaust gas is supplied from the internal combustion engine 1 initially via an exhaust gas turbine 2 and an exhaust gas line 3 to resonance pipes 4 of an oscillation system consisting of two Helmholtz resonators 5 and 6.
  • the Helmholtz resonators 5 and 6 are arranged symmetrically to the exhaust pipe 3 and are completely identical, which is why the same components are given the same reference numerals in the description.
  • the exhaust gas coming from the exhaust pipe 3 first passes through a housing 7 which coaxially surrounds the resonance pipes 4.
  • the housing has a first diffuser 8 in the transition region.
  • the Helmholtz resonators 5 and 6 are each formed from a resonance tube 4 and a resonance container 9, into which the resonance tubes 4 open coaxially at the end.
  • a soot filter 10 with a filter 11 located therein is provided downstream of each resonance container 9.
  • the resonance containers 9 each have a burner 12, the fuel supply of which is regulated by a fuel valve 13 clocked intermittently at the Helmholtz resonator resonance frequency and the air supply of which is regulated by an air valve 14. Both valves are controlled electronically. Both valves are advantageously actuated by electromagnets 16 and 17.
  • a high-voltage spark plug 18, which is located in the beam area of the burner 12, is used to ignite the injected fuel.
  • the exhaust gas stream coming from the internal combustion engine 1 is distributed in the housing 7 to the sections of the resonance pipes 4 of the same length.
  • the soot-laden exhaust gas stream passes from the resonance pipes 4 via the resonance tank 9 the soot filters 10, in which the filters 11 are located, which filter the soot out of the exhaust gas.
  • the soot filters 10 By separating the soot, the flow resistance of the soot filter 10 increases, so that the back pressure in the exhaust pipe 3 increases.
  • the pressure rise is detected by a pressure transducer (not shown here) and triggers a signal which activates the system for burning off the soot accumulated in the filters 11. This can be accomplished by electronics, which will not be explained in more detail here.
  • two intermittent, push-pull burners 12 are provided instead of a single one.
  • Working in push-pull means here a 180-phase shift of the (temporal) sinusoidal pressures within the two resonance containers 9. This procedure serves the purpose of forcing the same amounts of the peak values of the container alternating pressures, which presupposes the same lengths of the resonance tubes 4 but also the same lengths both burners 12 necessitates metered fuel quantities per single cycle.
  • the latter can be implemented in a simple manner by means of electronically controlled, so-called, known duty cycle control of the electromagnets 16 via electronic switches 18a.
  • a phase-correct triggering of the atomizing process initiated by the switch 18a can be derived in a known manner from the pressure increase in the respective resonance container 9.
  • the fuel-air mixture is ignited with the aid of the two high-voltage spark plugs 18 activated during the soot burn-up phase (operating frequency between 50 and 100 Hz).
  • a phase-synchronizing of the ignition voltage of the spark plugs 18 with the respective atomizing process of the burner 12 was dispensed with. Rather, they remain in the activated state for the duration of the disposal process in order to keep the long phase of spark generation then available for the purpose of burning off soot on the insulator surface of the spark plug use (ensuring electrical readiness).
  • the activation of the air valve 14, which releases the atomizing air, should be maintained for the operating life of the engine for reasons of keeping the fuel nozzle 12 clean and cooling.
  • the geometric dimensions of the resonance containers 9 and the resonance tubes 4 are to be selected such that, taking into account the highest speed of sound in the exhaust gas (full load), the resonance frequency has a value not greater than 0.7 times the lowest ignition sequence frequency (lower idling speed of the engine). This means that the alternating pressures of the engine exhaust gas are unable to excite the resonator; on the contrary, they are damped in the desired manner.
  • FIG. 1 A detailed drawing of a section II-II from FIG. 1 is shown in FIG.
  • the housing 7 surrounds the resonance tube 4 concentrically.
  • the exhaust gas is blown tangentially into the housing 7 via the exhaust pipe 3 and the diffuser 8.
  • the diffuser 8 and the tangential injection the kinetic energy of the exhaust gas is converted into potential pressure energy with as little loss as possible.
  • FIG. 3 shows a particularly advantageous arrangement of the filters 11 directly in the resonance containers 9.
  • the filter 11 is arranged coaxially in the resonance container 9. As shown in FIG. 1, the exhaust gas is supplied via the resonance pipe 4.
  • FIG. 3 For reasons of symmetry, only one resonance container 9 is shown in FIG. 3.
  • the exhaust gas coming from the resonance tube 4 is fed laterally to the resonance tank 9 via a second diffuser 19.
  • the diffuser is used to convert kinetic to potential pressure energy with as little loss as possible.
  • the exhaust gas cleaned of the soot is discharged via the exhaust pipe 20. Due to the arrangement of the filter 11 in the resonance container 9, the contact of the highly heated exhaust gases with the filter 11 is particularly thorough and there are no unnecessary heat losses through the walls of the soot filter 10 as in the embodiment according to FIG. 1. This creates the best boundary conditions for the regeneration of the filter 11 by burning off the soot.

Landscapes

  • 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)
EP90119972A 1989-12-16 1990-10-18 Procédé de régénération d'un filtre à suie pour moteurs diesel, et dispositif pour la réalisation du procédé Expired - Lifetime EP0433598B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3941635 1989-12-16
DE3941635A DE3941635A1 (de) 1989-12-16 1989-12-16 Verfahren zum regenerieren eines russfilters einer diesel-brennkraftmaschine, sowie vorrichtung zur durchfuehrung dieses verfahrens

Publications (2)

Publication Number Publication Date
EP0433598A1 true EP0433598A1 (fr) 1991-06-26
EP0433598B1 EP0433598B1 (fr) 1993-03-03

Family

ID=6395627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119972A Expired - Lifetime EP0433598B1 (fr) 1989-12-16 1990-10-18 Procédé de régénération d'un filtre à suie pour moteurs diesel, et dispositif pour la réalisation du procédé

Country Status (6)

Country Link
US (1) US5079917A (fr)
EP (1) EP0433598B1 (fr)
JP (1) JPH03242413A (fr)
DE (2) DE3941635A1 (fr)
ES (1) ES2040016T3 (fr)
RU (1) RU1838639C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826371A1 (fr) * 2006-02-24 2007-08-29 Eaton Corporation Système et procédé pour la régénération d'un piège à particules

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5974802A (en) * 1997-01-27 1999-11-02 Alliedsignal Inc. Exhaust gas recirculation system employing a fluidic pump
AT410761B (de) * 2001-03-26 2003-07-25 Meier Stauffer Gerd Dr Anordnung und verfahren zur behandlung von partikelhältigen gasen
DE10211141A1 (de) 2002-03-14 2003-09-25 Alstom Switzerland Ltd Verfahren zum Zünden der Brennkammer einer Gasturbinenanlage sowie Zündvorrichtung zur Durchführung des Verfahrens
US20050150215A1 (en) * 2004-01-13 2005-07-14 Taylor William Iii Method and apparatus for operating an airless fuel-fired burner of an emission abatement assembly
US20050150218A1 (en) * 2004-01-13 2005-07-14 Crawley Wilbur H. Method and apparatus for determining accumulation in a particulate filter of an emission abatement assembly
US8641411B2 (en) * 2004-01-13 2014-02-04 Faureua Emissions Control Technologies, USA, LLC Method and apparatus for directing exhaust gas through a fuel-fired burner of an emission abatement assembly
US20050150376A1 (en) * 2004-01-13 2005-07-14 Crawley Wilbur H. Method and apparatus for monitoring the components of a control unit of an emission abatement assembly
US7908847B2 (en) * 2004-01-13 2011-03-22 Emcon Technologies Llc Method and apparatus for starting up a fuel-fired burner of an emission abatement assembly
US7581389B2 (en) * 2004-01-13 2009-09-01 Emcon Technologies Llc Method and apparatus for monitoring ash accumulation in a particulate filter of an emission abatement assembly
US20050150219A1 (en) * 2004-01-13 2005-07-14 Crawley Wilbur H. Method and apparatus for controlling the temperature of a fuel-fired burner of an emission abatement assembly
US7243489B2 (en) * 2004-01-13 2007-07-17 Arvin Technologies, Inc. Method and apparatus for monitoring engine performance as a function of soot accumulation in a filter
US7685811B2 (en) * 2004-01-13 2010-03-30 Emcon Technologies Llc Method and apparatus for controlling a fuel-fired burner of an emission abatement assembly
US7118613B2 (en) * 2004-01-13 2006-10-10 Arvin Technologies, Inc. Method and apparatus for cooling the components of a control unit of an emission abatement assembly
US7628011B2 (en) * 2004-01-13 2009-12-08 Emcon Technologies Llc Emission abatement assembly and method of operating the same
US7025810B2 (en) * 2004-01-13 2006-04-11 Arvin Technologies, Inc. Method and apparatus for shutting down a fuel-fired burner of an emission abatement assembly
US20050150216A1 (en) * 2004-01-13 2005-07-14 Crawley Wilbur H. Method and apparatus for cleaning the electrodes of a fuel-fired burner of an emission abatement assembly
FR2881793B1 (fr) * 2005-02-04 2007-05-11 Melchior Jean F Moteur alternatif a combustion interne et procede d'elimination des particules des gaz brules pour un tel moteur alternatif
US7481048B2 (en) * 2005-06-30 2009-01-27 Caterpillar Inc. Regeneration assembly
US7406822B2 (en) * 2005-06-30 2008-08-05 Caterpillar Inc. Particulate trap regeneration system and control strategy
US20070158466A1 (en) * 2005-12-29 2007-07-12 Harmon Michael P Nozzle assembly
US20070228191A1 (en) * 2006-03-31 2007-10-04 Caterpillar Inc. Cooled nozzle assembly for urea/water injection
US20070235556A1 (en) * 2006-03-31 2007-10-11 Harmon Michael P Nozzle assembly
US8789363B2 (en) 2007-06-13 2014-07-29 Faurecia Emissions Control Technologies, Usa, Llc Emission abatement assembly having a mixing baffle and associated method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244798A1 (fr) * 1986-05-05 1987-11-11 W.R. Grace & Co.-Conn. Convertisseur catalytique pour moteurs diesel
WO1987007974A1 (fr) * 1986-06-23 1987-12-30 The Secretary Of State For Trade And Industry In H Appareil reducteur de bruit dans la cabine d'un aeronef
EP0292688A2 (fr) * 1987-05-21 1988-11-30 Webasto AG Fahrzeugtechnik Installation de filtre de suie dans un système d'échappement de moteur diesel
DE3818158A1 (de) * 1988-05-28 1989-12-07 Man Nutzfahrzeuge Ag Verfahren und vorrichtung zum beseitigen von in einem abgasfilter einer brennkraftmaschine abgeschiedenem russ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE580807C (de) * 1929-04-28 1933-07-17 Draegerwerk Heinr U Bernh Drae Vorrichtung zur Reinigung von Auspuffgasen von Verbrennungsmotoren
CH484359A (de) * 1967-05-22 1970-01-15 Sanitized Ag Verfahren und Vorrichtung zur Entgiftung der Auspuffgase von Brennkraftmaschinen
US3631792A (en) * 1970-06-15 1972-01-04 Albert G Bodine Sonic internal combustion engine exhaust afterburner
DE2930969A1 (de) * 1979-07-31 1981-02-26 Daimler Benz Ag Russfilter im abstroemweg der abgase einer brennkraftmaschine
JPS60184917A (ja) * 1984-03-02 1985-09-20 Hitachi Ltd デイ−ゼルパテイキユレ−ト低減装置
EP0287923A3 (fr) * 1987-04-22 1990-03-21 Webasto AG Fahrzeugtechnik Appareil de chauffage, notamment appareil de chauffage supplémentaire pour véhicules

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244798A1 (fr) * 1986-05-05 1987-11-11 W.R. Grace & Co.-Conn. Convertisseur catalytique pour moteurs diesel
WO1987007974A1 (fr) * 1986-06-23 1987-12-30 The Secretary Of State For Trade And Industry In H Appareil reducteur de bruit dans la cabine d'un aeronef
EP0292688A2 (fr) * 1987-05-21 1988-11-30 Webasto AG Fahrzeugtechnik Installation de filtre de suie dans un système d'échappement de moteur diesel
DE3818158A1 (de) * 1988-05-28 1989-12-07 Man Nutzfahrzeuge Ag Verfahren und vorrichtung zum beseitigen von in einem abgasfilter einer brennkraftmaschine abgeschiedenem russ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 70 (M-367)(1793) 30 März 1985, & JP-A-59 201915 (HINO JIDOSHA KOGYO) 15 November 1984, *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826371A1 (fr) * 2006-02-24 2007-08-29 Eaton Corporation Système et procédé pour la régénération d'un piège à particules

Also Published As

Publication number Publication date
RU1838639C (ru) 1993-08-30
JPH03242413A (ja) 1991-10-29
US5079917A (en) 1992-01-14
DE3941635A1 (de) 1991-06-20
DE59000979D1 (de) 1993-04-08
DE3941635C2 (fr) 1993-03-25
EP0433598B1 (fr) 1993-03-03
ES2040016T3 (es) 1993-10-01

Similar Documents

Publication Publication Date Title
EP0433598B1 (fr) Procédé de régénération d'un filtre à suie pour moteurs diesel, et dispositif pour la réalisation du procédé
EP0296435B1 (fr) Procédé et dispositif de nettoyage d'un filtre de suie
EP1108122B1 (fr) Dispositif de purification catalytique de gaz d'echappement
DE102011001328B4 (de) Vorrichtung zur Verbesserung des Wirkungsgrades einer Pulsdetonationsreinigung
DD287665A5 (de) Vorrichtung und verfahren zur reinigung von verfahrenseinrichtungen
DE3734197C2 (fr)
DE10256769B4 (de) Kraftfahrzeug mit einem Diesel-Antriebsmotor
EP0191437A1 (fr) Dispositif et procédé pour éliminer la suie ou des produits similaires des gaz d'échappement d'un moteur à combustion interne
EP1179673A2 (fr) Dispositif de recirculation de gaz dans un moteur à combustion
EP0220588A2 (fr) Procédé d'oxydation de la suie accumulée dans les filtres de suie
EP0532031A1 (fr) Dispositif pour la régénération thermique de filtres à particules pour les gaz d'échappement de moteurs diesel
EP2270319A1 (fr) Procédé et dispositif de nettoyage de filtres à particules dans les systèmes de gaz d'échappement de moteurs à combustion interne
WO2003027452A1 (fr) Dispositif et procede de post-traitement de gaz d'echappement
WO2006122581A1 (fr) Systeme d'echappement pour un vehicule automobile
DE60312792T2 (de) Gelöcherte Wabenkörper Filterstruktur, deren Herstellung und Verwendung in einem Abgasbehandlungssystem
EP1643092A1 (fr) Véhicule entraîné par un moteur diesel comprenant un système d'épuration de gaz d'échappement à régénération discontinue par l'injection des vapeurs de carburant
DE4230631C2 (de) Verfahren zur Entfernung von elektrisch leitenden Teilchen aus einem Gasstrom sowie Vorrichtung zur Durchführung des Verfahrens
EP0417383A2 (fr) Procédé et dispositif de nettoyage d'un filtre à suie
DE4440716A1 (de) Rußfilteranlage für Verbrennungsmotor
DE3837073C2 (fr)
DE3204176C2 (fr)
EP3529481B1 (fr) Procédé de commande d'un groupe motopropulseur avec haute efficacité et groupe motopropulseur
DE112007002005T5 (de) Zündkerze mit getrennter, Gehäuse-montierter Elektrode
DD291934A5 (de) Vorrichtung zur entfernung von feststoffen aus abgasen oder rauchgasen
DE3614115C2 (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19910718

17Q First examination report despatched

Effective date: 19920204

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT SE

REF Corresponds to:

Ref document number: 59000979

Country of ref document: DE

Date of ref document: 19930408

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930527

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19930910

Year of fee payment: 4

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2040016

Country of ref document: ES

Kind code of ref document: T3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19931007

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19931029

Year of fee payment: 4

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19941018

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19941019

Ref country code: ES

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19941019

EAL Se: european patent in force in sweden

Ref document number: 90119972.9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19941018

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950630

EUG Se: european patent has lapsed

Ref document number: 90119972.9

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19991007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051018