EP0690210B1 - Verfahren und Vorrichtung zum kontrollierten Regenerieren eines Dieselrussfilters - Google Patents
Verfahren und Vorrichtung zum kontrollierten Regenerieren eines Dieselrussfilters Download PDFInfo
- Publication number
- EP0690210B1 EP0690210B1 EP95109133A EP95109133A EP0690210B1 EP 0690210 B1 EP0690210 B1 EP 0690210B1 EP 95109133 A EP95109133 A EP 95109133A EP 95109133 A EP95109133 A EP 95109133A EP 0690210 B1 EP0690210 B1 EP 0690210B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- soot filter
- diesel
- temperature
- shut
- 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
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
- F01N3/0235—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 exhaust gas throttling 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
- 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
- F01N3/031—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 having means for by-passing filters, e.g. when clogged or during cold engine start
-
- 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
- F01N3/031—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 having means for by-passing filters, e.g. when clogged or during cold engine start
- F01N3/032—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 having means for by-passing filters, e.g. when clogged or during cold engine start during filter regeneration only
-
- 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 and a device for regenerating the diesel soot filter of a diesel engine.
- diesel soot filters with a porous wall are gaseous Allow components of the exhaust gas to pass through, however Prevent passage of solid particles, which are mainly by coagulating carbon molecules and heavy hydrocarbons are formed.
- the soot particles deposited in the diesel soot filter which the Increasingly add diesel soot filters during operation, can be used to regenerate the diesel soot filter thermal (combustion), catalytic or other processes dismantle.
- the invention has for its object a method and a device for regenerating diesel soot filters in Specify diesel engines, which is easier than before under Avoiding the inconveniences of a bypass operation effective protection against damage or destruction of the Diesel soot filter can be achieved.
- a method according to claim serves to solve this problem 1 and a device according to claim 2.
- the diesel particulate filter is divided into several, in parallel divided sections into the exhaust gas flow, at least one of which depends on each Exhaust gas temperature prevailing at the exit of the relevant section can be switched off completely or partially from the exhaust gas flow are.
- diesel soot filters 2, 4 and 6 installed are, with no bypass bridging the diesel soot filter is provided.
- These three diesel particulate filters are parallel to each other installed in the exhaust tract 3 and include one common inlet 5, individually outgoing inlet connection 5a, 5b, 5c, each in an associated diesel soot filter 2, 4, 6 open, and individual outlet nozzle 7a, 7b, 7c, which each start from a diesel soot filter 2, 4, 6 and merged into a common outlet 7 are.
- outlets 7a, 7b, 7c Thermocouples 9, 11, 13 for individual detection of exhaust gas temperatures of the three diesel soot filters provided Output signals in an electronic controlling the throttle bodies Unit 100 can be entered.
- the throttle bodies 2, 4, 6 are designed here as throttle valves.
- Soot particles are deposited in the diesel soot filters 2, 4, 6 from time to time by burning off due to an increase in temperature during operation or by means of exhaust throttling regenerates.
- forced regeneration are all throttle bodies 10, 12, 14 simultaneously by the operated electronic unit 100.
- the inlet 5a, b or c in question is shut off wholly or in part by means of the corresponding throttle element 10, 12 or 14 for an ON / OFF signal or an analog actuation signal out which of the electronic unit 100 is delivered.
- This unit 100 receives the output signals the thermocouples 9, 11, 13 as input signals.
- the reaction rate of the commenced combustion of the soot collected in the diesel soot filter, at constant exhaust gas temperature, is a function of the mass flow rate m.
- Figure 2 shows a qualitative diagram of the dependence of the reaction rate w of the combustion on the mass flow rate m. If the temperature behind the diesel soot filter 2 (FIG. 1) loaded with a particle quantity G exceeds the maximum permissible exhaust gas temperature, this filter 2 is partially or even completely shut off by actuating the associated throttle valve 10, with the result that the mass flow is reduced below m 1 .
- the main exhaust gas throughput is now passed through the diesel particulate filters 4 and 6. Accordingly, the mass throughput m is increased to over m 2 by these filters 4, 6.
- reaction rate w is reduced in all filters, as can be seen from the diagram in FIG. 2.
- this filter is throttled or blocked in the same way as filter 2 before. This results in a further increase in the mass flow rate m through the filter 6, in which the reaction speed is consequently reduced by an amount such that a reaction which may have started is terminated or "deleted".
- FIG 3 is a system of a six-cylinder diesel engine shown with four diesel soot filters 16, 18, 20, 22. Also here each diesel soot filter has a throttle element 24, 26, 28, 30 in the corresponding inlets not designated here and one thermocouple 32, 34, 36, 38 each in the corresponding assigned here not designated outlets.
- the throttle bodies can be used as throttle valves or poppet valves be trained.
- thermocouples T1 and T2 are installed in the center.
- the section 52 is due to the dimenionization of the tubular inlet 51 chosen so small that the current flowing through it when idling Mass flow is so great that the combustion of the deposited Soot is delayed or even interrupted.
- the protection against uncontrolled burning is mostly at effective at low to medium speeds or at low loads. This will result in a deterioration in driving characteristics because of the increased through the reduced exit area Back pressure not noticed by the driver, because he can reach it further depress the accelerator pedal to the desired output. On the other hand, should protection in the area of Maximum speed or power can occur by a Kick-down switches interrupt the protection process.
- a diesel particulate filter is shown, the two sections, namely a larger 67 and a smaller section 62 and no shut-off devices in the entrances 60, 61 Has.
- a single shut-off device is from a thermostat 64 formed in the common output channel of the two sections 62, 67 is arranged and from the exhaust gas flows flows through the sections 62, 67. The stretches Thermostat off, it closes the outlet 63 of the larger one Section 67 at a predetermined exhaust gas temperature.
- the temperature is monitored an electronic control unit at the filter outlet superfluous, which the thermostat 64 takes over automatic protection against uncontrolled combustion both sections 62, 67 when the predetermined exhaust gas temperature is achieved.
- the thermostat 64 consists of a closed corrugated pipe, which is under internal pressure extends axially. It is made with a suitable filling from one Provide substance (e.g. sodium) which is evaporates at a certain temperature and thereby a rapid increase in internal pressure caused. Thereby the thermostat 64 elastically extended and the outlet 63 shut off.
- Provide substance e.g. sodium
- FIG. 6 shows a variant of the embodiment according to FIG. 5, with a small and a large section 72, 77 a filter 71 as two sections of a monolith 72 are trained.
- the sections are common Exhaust gas flows through inlet 70.
- a thermostat 74 in the form of an axial expandable corrugated tube in the outlet 73 of the large section 77 arranged so that its exit 73 when reaching a automatically closes the specified temperature.
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)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
- Fig. 1
- einen Vierzylinder-Dieselmotor mit einem nachgeschalteten Dieselrußfilter gemäß der Erfindung im Abgastrakt;
- Fig. 2
- ein Diagramm mit der Reaktionsgeschwindigkeit der Regenerierung über dem Massendurchsatz des Dieselrußfilters;
- Fig. 3
- einen Sechszylinder-Motor mit einem abgewandelten Dieselrußfilter gemäß der Erfindung,
- Fig. 4, 5 und 6
- weitere Abwandlungen von Dieselrußfiltern gemäß der Erfindung.
Claims (9)
- Verfahren zum kontrollierten Regenerieren eines Dieselrußfilters eines Dieselmotors, wobei der Abgasstrom durch den Dieselrußfilter in Abhängigkeit von der Abgastemperatur hinter dem Dieselrußfilter gedrosselt wird, dadurch gekennzeichnet, daß der Dieselrußfilter in mehrere, parallel in den Abgastrakt eingeschaltete Abschnitte unterteilt wird, in deren mindestens einem der Abgasdurchsatz in Abhängigkeit von der Abgastemperatur hinter dem Dieselrußfilter gedrosselt oder ganz gesperrt wird, während der Abgasdurchsatz in den verbleibenden Abschnitten oder mindestens in einem letzten Abschnitt entsprechend erhöht wird.
- Vorrichtung zum kontrollierten Regenerieren des Dieselrußfilters eines Dieselmotors, bei der eine durch die Abgastemperatur hinter dem Dieselrußfilter gesteuerte Drosselvorrichtung vorgesehen ist, dadurch gekennzeichnet, daß der Dieselrußfilter in mindestens zwei parallel geschaltete Abschnitte (2-6; 16-22; 52, 57; 62, 67; 72, 77) unterteilt ist, von denen mindestens einer durch eine Drosselvorrichtung (10-14; 24-30; 40; 64; 74) teilweise oder ganz absperrbar ist, die durch die Abgastemperatur hinter dem Dieselrußfilter gesteuert ist, daß mindestens ein letzter Abschnitt ungedrosselt bleibt und daß kein den Dieselrußfilter umgehender Bypass vorgesehen ist.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß den einzelnen Abschnitten (2-6; 16-22) jeweils eigene Drosselvorrichtungen (10-14; 24-30) im Einlaß (5a, 5b, 5c) und eigene Temperaturmeßvorrichtungen (9-13; 32-38) im Auslaß (7a, 7b, 7c) zugeordnet sind.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der eine Abschnitt (52; 62; 72) der mindestens zwei getrennten Abschnitte (52, 57; 62, 67; 72, 77) unbehindert vom Abgas durchströmt ist, während der andere Abschnitt (57; 67; 77) durch ein Absperrorgan (40; 64; 74) in Abhängigkeit von der im Auslaß herrschenden Temperatur teilweise oder ganz absperrbar ist.
- Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß eine elektronische Steuereinheit (100) vorgesehen ist, welche das oder jedes Absperrorgan (10-14; 24-30; 40) bei Überschreiten einer vorbestimmten Temperatur im zugehörigen Auslaß (7a, 7b, 7c; 53) des betreffenden Abschnittes individuell zum teilweisen oder gänzlichen Absperren betätigt.
- Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß Temperatursensoren (T1, T2) in den Auslässen beider Abschnitte (52, 57) angeordnet sind und daß das im Einlaß (50) des größeren Abschnittes (57) vorgesehene Absperrorgan (40) unabhängig davon betätigt wird, welcher der beiden Temperatursensoren ein Überschreiten der zulässigen Temperatur erfaßt.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß ein selbsttätig bei Überschreiten einer vorgegebenen Abgastemperatur wirksam werdendes Absperrorgan (64; 74) im Auslaß (63; 73) des größeren Abschnittes (67; 77)angeordnet ist.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß das Absperrorgan (64; 74) ein Wellrohr ist, welches eine abgeschlossene Füllung aus einem Stoff, insbesondere Natrium, aufweist, der bei Überschreiten der vorgegebenen Temperatur verdampft.
- Vorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die beiden Abschnitte (72, 77) Teile eines Monolithen bilden.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4422829 | 1994-06-29 | ||
DE4422829 | 1994-06-29 | ||
DE19506983 | 1995-02-28 | ||
DE19506983A DE19506983A1 (de) | 1994-06-29 | 1995-02-28 | Verfahren und Vorrichtung zum kontrollierten Regenerieren eines Dieselrußfilters |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0690210A1 EP0690210A1 (de) | 1996-01-03 |
EP0690210B1 true EP0690210B1 (de) | 1998-11-04 |
Family
ID=25937847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95109133A Expired - Lifetime EP0690210B1 (de) | 1994-06-29 | 1995-06-13 | Verfahren und Vorrichtung zum kontrollierten Regenerieren eines Dieselrussfilters |
Country Status (8)
Country | Link |
---|---|
US (1) | US5582002A (de) |
EP (1) | EP0690210B1 (de) |
JP (1) | JPH0849523A (de) |
CN (1) | CN1116272A (de) |
AT (1) | ATE173051T1 (de) |
AU (1) | AU680359B2 (de) |
BR (1) | BR9502975A (de) |
CA (1) | CA2152094A1 (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2753393B1 (fr) * | 1996-09-13 | 1998-10-30 | Inst Francais Du Petrole | Procede et dispositif de controle d'un filtre a particules |
US6752856B1 (en) | 1999-04-29 | 2004-06-22 | Caterpillar Inc. | Feedback loop controlled multistage aerosol removal device |
US6293096B1 (en) | 1999-06-23 | 2001-09-25 | Southwest Research Institute | Multiple stage aftertreatment system |
US6615580B1 (en) | 1999-06-23 | 2003-09-09 | Southwest Research Institute | Integrated system for controlling diesel engine emissions |
CN1230608C (zh) * | 2000-07-24 | 2005-12-07 | 丰田自动车株式会社 | 尾气净化装置 |
US6901751B2 (en) * | 2002-02-01 | 2005-06-07 | Cummins, Inc. | System for controlling particulate filter temperature |
DE10211565A1 (de) * | 2002-03-15 | 2003-10-09 | Eberspaecher J Gmbh & Co | Abgasanlage mit Partikelfilter für Dieselmotoren |
FR2846038B1 (fr) * | 2002-10-22 | 2006-12-22 | Renault Sa | Procede de determination de la temperature interne d'un filtre a particules, procede de commande de la generation du filtre a particules, systeme de commande et filtre a particules correspondant. |
US20040231323A1 (en) * | 2003-05-23 | 2004-11-25 | Fujita Mahoro M. | Exhaust system and process for operating the same |
CA2527006A1 (en) * | 2003-06-18 | 2004-12-29 | Johnson Matthey Public Limited Company | System and method of controlling reductant addition |
US6991668B2 (en) * | 2003-09-26 | 2006-01-31 | Towsley Frank E | Diesel soot filter |
FR2865239B1 (fr) * | 2004-01-19 | 2006-03-31 | Jean Claude Fayard | Dispositif de filtration des gaz d'echappement pour moteur diesel associant un additif de combustion compose de nano-particules et un filtre a particules a surface de filtration variable |
GB0428291D0 (en) * | 2004-12-24 | 2005-01-26 | Johnson Matthey Plc | Methods of regenerating NOx-Absorbent |
GB0428289D0 (en) * | 2004-12-24 | 2005-01-26 | Johnson Matthey Plc | Reductant addition in exhaust system comprising NOx-absorbent |
FR2872199B1 (fr) * | 2004-06-25 | 2006-10-06 | Jean Claude Fayard | Procede et dispositif de reduction/elimination de la quantite de particules contenues dans les gaz d'echappement d'un moteur a combustion interne |
DE102005038707A1 (de) * | 2005-08-15 | 2007-03-08 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Verfahren und Vorrichtung zur Aufbereitung eines Abgases einer Verbrennungskraftmaschine |
US20080314032A1 (en) * | 2007-05-15 | 2008-12-25 | Xuantian Li | Segmented Particulate Filter For An Engine Exhaust Stream |
WO2011059233A2 (ko) * | 2009-11-10 | 2011-05-19 | 제주대학교 산학협력단 | 필터조립체 및 이를 포함하는 배기가스 저감장치 |
US20120151916A1 (en) * | 2010-12-21 | 2012-06-21 | Shishir Tiwari | Apparatus and system for directing exhaust gas flow |
US10100721B2 (en) | 2010-12-21 | 2018-10-16 | General Electric Company | Apparatus and system for directing exhaust gas flow |
CN102116187A (zh) * | 2011-03-22 | 2011-07-06 | 杭州银轮科技有限公司 | 一种用于柴油机尾气处理的催化转化器 |
WO2013063137A1 (en) | 2011-10-26 | 2013-05-02 | Boshart Automotive Testing Service, Inc. | Over temperature / pressure safety device for diesel particulate filters |
US9010098B2 (en) * | 2012-10-24 | 2015-04-21 | Electro-Motive Diesel, Inc. | After-treatment device |
JP6277489B2 (ja) * | 2014-04-25 | 2018-02-14 | 株式会社コモテック | 内燃機関のフィルタ装置 |
WO2015171155A1 (en) * | 2014-05-09 | 2015-11-12 | Cummins Inc. | Techniques for minimizing aftertreatment system exhaust flow restrictions during engine operation |
JP6551132B2 (ja) * | 2015-10-13 | 2019-07-31 | スズキ株式会社 | エンジンの排気制御装置 |
US10273847B2 (en) * | 2017-05-26 | 2019-04-30 | GM Global Technology Operations LLC | Systems and methods for controlling bypass of exhaust after treatment device |
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US1792891A (en) * | 1927-09-23 | 1931-02-17 | Walter B Clifford | Temperature-controlled valve |
DE2360581A1 (de) * | 1973-12-05 | 1975-06-19 | Porsche Ag | Vorrichtung zum katalytischen nachverbrennen von abgasen im abgassystem einer brennkraftmaschine |
DE2749252C3 (de) * | 1977-11-03 | 1980-09-11 | Danfoss A/S, Nordborg (Daenemark) | Betätigungsvorrichtung für die Verstellung des Verschlußstücks eines Ventils |
JPS57195815A (en) * | 1981-05-28 | 1982-12-01 | Toyota Motor Corp | Exhaust gas purifier of internal combustion engine |
CH663253A5 (en) * | 1984-04-11 | 1987-11-30 | Bbc Brown Boveri & Cie | Exhaust particle filter for internal combustion engines |
DE3538109C1 (de) * | 1985-10-26 | 1987-02-26 | Man Technologie Gmbh | Dieselmotor mit Russfilter |
DE3723703A1 (de) * | 1986-01-22 | 1989-01-26 | Kloeckner Humboldt Deutz Ag | Brennkraftmaschine mit zumindest einem russfilter |
DE3806219C2 (de) * | 1988-02-26 | 1997-12-11 | Pattas Konstantin N | Rußfiltersystem |
US5195319A (en) * | 1988-04-08 | 1993-03-23 | Per Stobbe | Method of filtering particles from a flue gas, a flue gas filter means and a vehicle |
DE8810816U1 (de) * | 1988-08-26 | 1989-12-21 | Emitec Gesellschaft für Emissionstechnologie mbH, 53797 Lohmar | Katalysator-Gehäuse, insbesondere für Startkatalysatoren, und zugehöriger Katalysator-Trägerkörper |
JPH0621551B2 (ja) * | 1989-06-16 | 1994-03-23 | いすゞ自動車株式会社 | パティキュレートトラップの再生装置 |
JPH0385315A (ja) * | 1989-08-28 | 1991-04-10 | Riken Corp | 排ガス浄化装置 |
JPH03202609A (ja) * | 1989-12-28 | 1991-09-04 | Nissan Motor Co Ltd | エンジンの排気浄化装置 |
JPH03233119A (ja) * | 1990-02-09 | 1991-10-17 | Nissan Motor Co Ltd | エンジンの排気浄化装置 |
JPH03286120A (ja) * | 1990-03-30 | 1991-12-17 | Mazda Motor Corp | ディーゼルエンジンの排気微粒子浄化装置 |
WO1993000503A2 (en) * | 1991-06-27 | 1993-01-07 | Donaldson Company, Inc. | Trap apparatus with tubular filter element |
JP2894103B2 (ja) * | 1992-09-09 | 1999-05-24 | 松下電器産業株式会社 | 排気ガス浄化装置 |
-
1995
- 1995-05-30 US US08/453,524 patent/US5582002A/en not_active Expired - Fee Related
- 1995-06-09 AU AU21630/95A patent/AU680359B2/en not_active Ceased
- 1995-06-13 AT AT95109133T patent/ATE173051T1/de not_active IP Right Cessation
- 1995-06-13 EP EP95109133A patent/EP0690210B1/de not_active Expired - Lifetime
- 1995-06-19 CA CA002152094A patent/CA2152094A1/en not_active Abandoned
- 1995-06-27 CN CN95107645A patent/CN1116272A/zh active Pending
- 1995-06-28 BR BR9502975A patent/BR9502975A/pt not_active Application Discontinuation
- 1995-06-29 JP JP7163834A patent/JPH0849523A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CA2152094A1 (en) | 1995-12-30 |
US5582002A (en) | 1996-12-10 |
BR9502975A (pt) | 1996-06-25 |
AU680359B2 (en) | 1997-07-24 |
ATE173051T1 (de) | 1998-11-15 |
EP0690210A1 (de) | 1996-01-03 |
AU2163095A (en) | 1996-01-11 |
CN1116272A (zh) | 1996-02-07 |
JPH0849523A (ja) | 1996-02-20 |
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