EP0309723B1 - Brûleur d'allumage dans un dispositif pour la combustion de particules solides dans le gaz d'échappement de moteurs à combustion interne - Google Patents

Brûleur d'allumage dans un dispositif pour la combustion de particules solides dans le gaz d'échappement de moteurs à combustion interne Download PDF

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Publication number
EP0309723B1
EP0309723B1 EP88113542A EP88113542A EP0309723B1 EP 0309723 B1 EP0309723 B1 EP 0309723B1 EP 88113542 A EP88113542 A EP 88113542A EP 88113542 A EP88113542 A EP 88113542A EP 0309723 B1 EP0309723 B1 EP 0309723B1
Authority
EP
European Patent Office
Prior art keywords
chamber
mixture
ignition burner
accomodation
burner according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88113542A
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German (de)
English (en)
Other versions
EP0309723A1 (fr
Inventor
Alfred Knauer
Ulrich Dr. Projahn
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0309723A1 publication Critical patent/EP0309723A1/fr
Application granted granted Critical
Publication of EP0309723B1 publication Critical patent/EP0309723B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—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
    • F01N3/26—Construction of thermal reactors
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/11—Adding substances to exhaust gases the substance or part of the dosing system being cooled
    • 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
    • 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
    • F01N3/38—Arrangements for igniting

Definitions

  • the invention relates to a pilot burner in a device for burning solid particles, in particular soot particles, in the exhaust gas of internal combustion engines of the type defined in the preamble of claim 1.
  • Such combustion devices are used in particular in motor vehicles with diesel engines for the immediate soot disposal of the soot filtered out of the exhaust gas by electrostatic soot switches.
  • This is fed to the combustion chamber of the combustion device with a secondary exhaust gas stream, which makes up less than 1% of the total exhaust gas, and is burned there at a flame temperature between 550 ° C - 1000 ° C.
  • the pollutant-free combustion products and the residual gases are exhausted via the exhaust systems of the internal combustion engine.
  • a pilot burner is attached to the combustion chamber of the combustion device, as described, for example, in DE-OS 36 21 914.
  • the pilot burner which is designed as a swirl burner
  • liquid fuel and combustion air are swirled in metered amounts in the mixture preparation chamber and the mixture is fed to the combustion chamber via the mixture outlet opening, where it burns together with the soot-laden exhaust gas after ignition.
  • the ignition is caused by the glow plug, on the filament of which the mixture ignites.
  • the glow body in the mixture preparation chamber takes over the stabilization of the flame formation, so that the glow plug can be switched off again and is only required for starting up or for intermittent operation of the combustion device.
  • the design of the pilot burner is decisive for the quality of the mixture preparation and for the stress on the glow plugs, whereby by placing the glow plug in the separate receiving chamber, it lies outside the flame area and thus prevents its thermal overload.
  • the pilot burner according to the invention with the characterizing features of claim 1 has the advantage that, on the one hand, the protective sleeve prevents the fuel flowing into the spark plug receiving chamber from impinging on the filament of the glow plug and thus coking of the glow plug, which leads to a considerable increase in the service life of the Glow plug leads, and on the other hand, by the protective sleeve, which is always hot even when the glow plug is switched off, uniform evaporation of the fuel striking the protective sleeve is ensured. This leads to a very good mixture preparation and to a soot-free (blue) burner flame even with a low combustion air / fuel ratio.
  • the approximately vertical arrangement of the receiving chamber and the arrangement of the connecting opening between the receiving chamber and mixture preparation chamber at the lower end of the receiving chamber not only simplify the manufacture of the ignition burner housing, but also prevent fuel sump formation in the receiving chamber.
  • the pilot burner is thus more stable against mechanical shocks than known pilot burners.
  • the durability of the electrical connections of the glow plug is ensured by cooling the jacket of the receiving chamber in the area of the internal thread section receiving the plug connection thread according to an advantageous embodiment of the invention.
  • the cooling can be effected by cooling fins running radially or axially to the receiving chamber on its circumference or by an annular channel enclosing the internally threaded section, through which the combustion air supplied to the mixture preparation chamber is passed. In the latter case, the combustion air is preheated at the same time, so that less energy is required to reach the ignition temperature of the fuel-air mixture.
  • the shape of the flame can be adapted to various requirements.
  • the pilot in each case shown schematically in Fig. 1 in longitudinal section and in Fig. 2 in cross section ner has a hollow cylindrical mixture processing chamber 10, hereinafter referred to as processing chamber 10, and a glow plug receiving chamber 11, hereinafter referred to as receiving chamber 11. Both chambers 10, 11 run at right angles to one another, their longitudinal axes lying in one plane.
  • the processing chamber 10 In the installed position of the pilot burner, the processing chamber 10 is approximately horizontal and the receiving chamber 11 is vertical, the latter being inserted with its one open end into a circular cylindrical opening 12 in the chamber wall of the processing chamber 10.
  • the processing chamber 10 is closed at one end and has a mixture outlet opening 13 at its other end, to which a combustion chamber of the combustion device (not shown) is connected.
  • an incandescent body 14 Arranged coaxially in the treatment chamber 10 is an incandescent body 14 which is fastened in the closed end wall of the treatment chamber 10 and extends through the treatment chamber 10 to close to the mixture outlet opening 13.
  • the incandescent body 14 has a plurality of, for example three, annular ribs 16 protruding radially from a shaft 15, of which the two annular ribs 16 which are closer to the mixture outlet opening 13 have openings 17 distributed uniformly over their circumference.
  • An air supply line 18 opens near the closed end wall of the treatment chamber 10 with an inflow direction tangential to the treatment chamber 10.
  • a thermocouple 19 is arranged in the chamber wall near the mixture outlet opening 13 and protrudes radially into the processing chamber 10 into the vicinity of the front end of the incandescent body 14.
  • the treatment chamber 10 carries a radially projecting fastening flange 21 in the vicinity of the burner mouth 20, which is integral with the chamber wall.
  • a glow plug 22 is held coaxially, which is screwed with a plug connection thread 23 into an internal thread section 24 at the end of the receiving chamber 11 facing away from the opening 12 (FIG. 2).
  • the glow plug 22 projects with its filament 25 close to the opening 12 to the processing chamber 10.
  • the glow plug 22 is coaxially enclosed by a protective sleeve 26 with a radial spacing, which is thin-walled in view of a low heat capacity and the associated fast heating-up time is carried out, the wall thickness of which is preferably between 0.1-0.3 mm.
  • a mouthpiece 27 of a fuel supply line 28 projects radially into the receiving chamber 11 and its mouth 29 lies directly in front of the outer wall of the protective sleeve 26.
  • This hot protective sleeve 26 - even when the glow plug 22 is temporarily switched off - ensures uniform evaporation of the fuel supplied, which improves the mixture preparation.
  • the protective sleeve 26 prevents the fuel from coming into direct contact with the filament 25 of the glow plug 22, so that its coking is largely prevented.
  • bores 30 are provided near the free open end of the protective sleeve 26, which are arranged uniformly distributed over the circumference of the protective sleeve 26.
  • the glow plug 22 is supplied with current via two electrical connecting lines 31 and 32.
  • the receiving chamber 11 is cooled in the area of its internally threaded section 24.
  • the cooling takes place through the combustion air supplied to the processing chamber 10.
  • the jacket of the receiving chamber 11 is enclosed in the area of the internal thread section 24 by an annular channel 33, which is switched into the air supply line 18 with an inlet opening 34 and with an outlet opening 35 (FIG. 2).
  • cooling fins can also be used to cool the plug connection thread 23.
  • radial cooling fins 36 are placed on the jacket of the receiving chamber 11 in the region of the internally threaded section 24.
  • axial cooling ribs 37 can also be provided, which extend on the outer jacket of the receiving chamber 11 over the entire area of the internally threaded section 24.
  • the glow plug 37 of the pilot burner is first supplied with electricity and fuel is fed into the receiving chamber 11 through the fuel feed line 28.
  • combustion air is conveyed into the processing chamber 10 via the air supply line 18, which causes a rotary flow in the processing chamber 10 due to the tangential inflow direction.
  • the fuel striking the protective sleeve 26 heated by the glow plug 22 evaporates and mixes in the processing chamber 10 with the combustion air.
  • the fuel-air mixture ignites and the flame strikes through the mixture outlet opening 13 into the connected combustion chamber of the combustion device.
  • the incandescent body 14 reaches the ignition temperature, so that the flame formation is stabilized.
  • the glow plug 22 is now switched off.
  • the swirl through the mixture outlet opening 13 into the combustion chamber The striking pilot flame is concentrated in the axis of the combustion chamber by the design of the burner mouth as a nozzle (FIG. 5), so that a very hot combustion core zone is formed in the center of the combustion chamber, in which the soot particles supplied to the exhaust gas bypass flow to the combustion chamber are brought quickly to the reaction temperature will.
  • the burner mouth By designing the burner mouth as a diffuser (FIG. 1), the combustion core zone can be shifted and widened.
  • the strength of the swirl of the fuel-air mixture necessary for stable combustion can be influenced by different cross sections of the air supply line 18.
  • the thermocouple 19 or another sensor which senses the flame temperature of the pilot burner is used to monitor the pilot burner and to regulate the burner temperature to a constant value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Wick-Type Burners And Burners With Porous Materials (AREA)
  • Spray-Type Burners (AREA)

Claims (8)

1. Brûleur d'allumage dans un dispositif destiné à la combustion de particules solides, notamment de particules de suie dans le gaz d'échappement de moteurs à combustion interne, comprenant une chambre de préparation du mélange (10) cylindrique et creuse qui reçoit un corps à incandescence (14) coaxial, qui est fermée à une extrémité frontale et présente, à son autre extrémité, frontale un orifice de sortie du mélange (13), une chambre de réception (11) cylindrique et creuse, s'tendant transversalement à la chambre de préparation du mélange (10) et recevant une bougie à incandescence (22) coaxiale, qui est en relation avec la chambre de préparation (10), une conduite d'arrivée de carburant (28) débouchant dans la chambre de réception (11 et une conduite d'arrivée d'air (18) débouchant dans lea chambre de préparation (10) suivant une direction d'admission tangentielle, caractérisé en ce que la bougie à incandescence (22) est entourée à quel- quue distance radiale dans la zone du filament incandescent (25) d'un manchon de protection (26) coaxial, de préference à parois minces, et en ce que la conduite d'arrivée de carburant (28) s'achève par une tubulure d'embouchure (27) qui pénètre radialement dans la chambre de réception (11) et dont l'orifice d'embouchure (29) se trouve très proche du manchon de protection (26).
2. Brûleur d'allumage selon la revendication 1, caractérisé en ce que les axes de la chambre de préparation du mlange (10) et de la chambre de réception (11) se trouvent dans un même plan et en ce que la chambre de réception (11) débouche par son extrémité frontale ouverte dans une ouverture cylindrique circulaire (12) aménagée dans la aroi de la chambre de préparation du mélange (10).
3. Brûleur d'allumage selon la revendication 2, caractérisé en ce que la chambre de réception (11) se trouve, le brûleur d'allumage étant en position montée et la chambre de préparation du mélange (10) ayant un alignement senseblement horizontal, au-dessus de cette dernière avec un alignement sensiblement vertical.
4. Brûleur d'allumage selon l'une des revendications 1-3, caracterisé en ce que des perçages radiaux (30), de préférence régulièrement répartis sur son pourtour, sont amenés dans la région inférieure du manchon de protection (16).
5. Brûleur d'allumage selon l'une des revendications 1-4, caractérisé en ce que l'embouchure de la conduite d'arrivée d'air (18) se trouve proche de l'extrémité frontale fermée de la chambre de préparation du mélange.
6. Brûleur d'allumage selon l'une des revendications 1-5, caractérisé en ce que la chambre de réception présente, pour le vissage de la bougie à incandescence (22), une partie pourvue d'un filetage femelle (24) à une extrémité frontale et en ce que l'enveloppe de la chambre de réception (11) est refroidie dans la région correspondant au filetage femelle (24).
7. Brûleur d'alumage selon la revendication 6, caractérisé en ce que l'enveloppe de la chambre de réception (11) comporte, dans la région du filetage fe- mellré (24), des ailettes de refroidissement (36, 37) s'en écartant à angle droit et s'étendant radialement ou axialement.
8. Brûleur d'allumage selon la revendication 6, caractérisé en ce que l'enveloppe de la chambre de réception (11) est entourée dans la région du filetage femelle (24) d'un canal circulaire (33) qui communique par une admission et par une sortie (34, 35) avec la conduite d'arrivée d'air (18).
EP88113542A 1987-09-26 1988-08-20 Brûleur d'allumage dans un dispositif pour la combustion de particules solides dans le gaz d'échappement de moteurs à combustion interne Expired - Lifetime EP0309723B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3732491 1987-09-26
DE19873732491 DE3732491A1 (de) 1987-09-26 1987-09-26 Zuendbrenner fuer eine vorrichtung zum verbrennen von festkoerperpartikeln im abgas von brennkraftmaschinen

Publications (2)

Publication Number Publication Date
EP0309723A1 EP0309723A1 (fr) 1989-04-05
EP0309723B1 true EP0309723B1 (fr) 1990-08-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP88113542A Expired - Lifetime EP0309723B1 (fr) 1987-09-26 1988-08-20 Brûleur d'allumage dans un dispositif pour la combustion de particules solides dans le gaz d'échappement de moteurs à combustion interne

Country Status (4)

Country Link
US (1) US4858432A (fr)
EP (1) EP0309723B1 (fr)
JP (1) JPH01114607A (fr)
DE (2) DE3732491A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0380806A1 (fr) * 1989-02-02 1990-08-08 Robert Bosch Gmbh Brûleur d'allumage pour un dispositif de combustion des particules solides dans les gaz d'échappement d'un moteur à combustion interne
DE4009201A1 (de) * 1990-01-25 1991-08-01 Man Technologie Gmbh Abgassystem mit einem partikelfilter und einem regenerierungsbrenner
DE4436415A1 (de) * 1994-10-12 1996-04-18 Bosch Gmbh Robert Einrichtung zum Nachbehandeln von Abgasen einer selbstzündenden Brennkraftmaschine
DE19625447B4 (de) * 1996-06-26 2006-06-08 Robert Bosch Gmbh Rohrverdampfer für Zusatzkraftstoff ins Abgas
US6834498B2 (en) * 2002-11-21 2004-12-28 Ford Global Technologies, Llc Diesel aftertreatment systems
DE102004051905A1 (de) * 2004-10-26 2006-04-27 Robert Bosch Gmbh Vorrichtung und Verfahren zur Erzeugung eines Betriebsmittels für ein Kraftfahrzeug
DE102006031544A1 (de) * 2006-07-07 2008-01-10 Arvinmeritor Emissions Technologies Gmbh Verdampfungsvorrichtung sowie Baugruppe mit einer Verdampfungsvorrichtung
JP5210999B2 (ja) * 2009-09-02 2013-06-12 株式会社クボタ ディーゼルエンジンの排気処理装置
JP5353822B2 (ja) * 2009-09-30 2013-11-27 株式会社Ｉｈｉ 着火装置
CN104411931B (zh) * 2012-04-27 2017-03-01 日野自动车株式会社 燃烧器以及过滤器再生装置
JP5894104B2 (ja) * 2013-03-29 2016-03-23 株式会社クボタ エンジンの排気処理装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1551752A1 (de) * 1967-02-01 1970-03-19 Webasto Werk Baier Kg W Brennstoffversorgungseinrichtung von mit OEl,vorzugsweise Dieseloel od.dgl. betriebenen Fahrzeugheizgeraeten
FR2133202A5 (fr) * 1971-04-13 1972-11-24 Oxy France
DE3219948A1 (de) * 1982-05-27 1983-12-01 Bayerische Motoren Werke AG, 8000 München Brenner fuer einen russfilter von brennkraftmaschinen
US4419113A (en) * 1982-07-08 1983-12-06 General Motors Corporation Diesel exhaust particulate trap with axially stacked filters
JPS601314A (ja) * 1983-06-20 1985-01-07 Nissan Motor Co Ltd 内燃機関の排気微粒子後処理装置
DE3526074A1 (de) * 1985-07-20 1987-01-22 Bosch Gmbh Robert Einrichtung zur entfernung von brennbaren festkoerperteilchen aus abgasen von brennkraftmaschinen
DE3621914A1 (de) * 1986-06-30 1988-01-07 Bosch Gmbh Robert Vorrichtung zum verbrennen von feststoffteilchen im abgas von brennkraftmaschinen
US4776725A (en) * 1987-10-02 1988-10-11 Brade Donald E Erosion control apparatus

Also Published As

Publication number Publication date
US4858432A (en) 1989-08-22
EP0309723A1 (fr) 1989-04-05
DE3732491C2 (fr) 1989-08-24
DE3860461D1 (de) 1990-09-20
JPH01114607A (ja) 1989-05-08
DE3732491A1 (de) 1989-04-13

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