DE19508804A1 - Exhaust gas soot filter for Diesel engines - Google Patents
Exhaust gas soot filter for Diesel enginesInfo
- Publication number
- DE19508804A1 DE19508804A1 DE19508804A DE19508804A DE19508804A1 DE 19508804 A1 DE19508804 A1 DE 19508804A1 DE 19508804 A DE19508804 A DE 19508804A DE 19508804 A DE19508804 A DE 19508804A DE 19508804 A1 DE19508804 A1 DE 19508804A1
- Authority
- DE
- Germany
- Prior art keywords
- arrangement according
- soot filter
- soot
- filter
- exhaust gas
- 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.)
- Withdrawn
Links
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
- F01N3/022—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0222—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
- B01D46/84—Chemical processes for the removal of the retained particles, e.g. by burning by heating only
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
- B01D2273/20—High temperature filtration
-
- 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
- F01N2240/02—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 heat exchanger
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Die Erfindung betrifft eine Rußfilteranordnung für Dieselmotoren mit einem im Abgasstrom angeordneten Partikelfilter und einem Brenner, der bei einer Vorgegebenen Beladung des Partikelfilters mit Partikeln (Ruß) betätigt wird und durch Temperaturerhöhung des Partikelfilters dessen Regeneration bewirkt, wobei die im Partikelfilter angelagerten Rußpartikel abbrennen.The invention relates to a soot filter arrangement for diesel engines with a Exhaust gas flow arranged particle filter and a burner, which at a Predetermined loading of the particle filter with particles (soot) is actuated and by increasing the temperature of the particle filter causes its regeneration, wherein burn off the soot particles accumulated in the particle filter.
Eine derartige Einrichtung ist zum Beispiel aus der US-PS 4,651,524 bekannt. Der Brenner wird mit Brennstoff und zusätzlicher Verbrennungsluft betrieben und befindet sich stromauf des Filterelementes im Abgasstrom. Dies bedeutet, daß der Brenner gegen den sich ausbildenden Abgasgegendruck stromauf des Abgasfilters arbeiten muß.Such a device is known for example from US Pat. No. 4,651,524. Of the Burner is operated with fuel and additional combustion air and is located upstream of the filter element in the exhaust gas flow. This means that the Burner against the developing exhaust gas back pressure upstream of the exhaust gas filter have to work.
Hierzu ist es erforderlich, die Verbrennungsluft soweit zu Verdichten, daß der Abgasgegendruck überwunden wird.For this it is necessary to compress the combustion air so far that the Exhaust back pressure is overcome.
Ein derartiger Luftverdichter ist aufwendig und teuer.Such an air compressor is complex and expensive.
Um dies zu vermeiden, ist es bekannt, ein zweites Filterelement parallel zum ersten in den Abgasstrang einzuschalten und im Falle der Regeneration des einen Filterelementes den Abgasstrom über das zweite Filterelement zu leiten, so daß das erste Filterelement keinen Abgasgegendruck aufbauen kann.To avoid this, it is known to have a second filter element parallel to the first turn on in the exhaust system and in the case of regeneration of one Filter element to direct the exhaust gas flow over the second filter element, so that first filter element can not build up exhaust back pressure.
Eine solche Anordnung ist jedoch ebenfalls aufwendig und teuer.However, such an arrangement is also complex and expensive.
Der Erfindung liegt die Aufgabe zugrunde, eine Rußfilteranordnung eingangs genannter Art darzustellen, um solch zusätzlichen Aufwand, sei es für den Luftverdichter oder für eine weitere Rußfilteranordnung zu vermeiden.The invention has for its object a soot filter arrangement at the beginning to represent such a kind of additional effort, be it for the Avoid air compressor or for another soot filter arrangement.
Diese Aufgabe wird gemäß der Erfindung mit den im Hauptanspruch angegebenen Mitteln gelöst, Vorteilhafte Ausgestaltungen sind in den weiteren Ansprüchen angegeben. This object is achieved according to the invention with those specified in the main claim Means solved, Advantageous refinements are in the further claims specified.
In der Zeichnung ist die Erfindung schematisch dargestellt. Es zeigenThe invention is shown schematically in the drawing. Show it
Fig. 1 die erfindungsgemäße Rußfilteranordnung als Ausschnitt aus einem Abgasstrang; Fig. 1, the soot filter assembly of the invention as a section from an exhaust line;
die Fig. 2 den Schnitt A-A durch das Filterelement; Figure 2 is a section AA through the filter element.
die Fig. 3 einen Schnitt B-B durch das Filterelement; Figure 3 is a section BB through the filter element.
Fig. 4 Detail D in der Fig. 3 in Vergrößerung. Fig. 4 detail D in Fig. 3 in enlargement.
Die Fig. 1 zeigt die Gesamtanordnung eines Rußfilters. Ein Zentralrohr 1 führt das Abgas von einer nicht dargestellten Dieselbrennkraftmaschine in Richtung des Pfeils 2 unter ringförmiger Umströmung eines Brenners 3, wobei durch die heißen Brenneraußenwände das Abgas vorgeheizt wird zu der Einströmseite 4 eines Rußfilters 5, der aus zwei Blöcken 5 und 6 aufgebaut sein kann, wobei sich zwischen diesen Blöcken ein Freiraum 7 befindet. Fig. 1 shows the overall arrangement of a soot filter. A central pipe 1 guides the exhaust gas from a diesel internal combustion engine (not shown) in the direction of arrow 2 with annular flow around a burner 3 , the exhaust gas being preheated by the hot outer walls of the burner to the inflow side 4 of a soot filter 5 , which can be constructed from two blocks 5 and 6 , with a free space 7 between these blocks.
Stromauf und stromab der Rußfilter sind die Anschlüsse eines Differenzdrucksensors 10 innerhalb des Abgasstranges angeordnet, wobei sich stromab des Rußfilters ferner ein Temperartursensor 11 befindet. Die Signale der Sensoren werden zusammen mit anderen Betriebsinformationen in einer zentralen Recheneinheit 12 verarbeitet. Der Brenner 3 wird mit verdichteter Zerstäuber- und Brennerluft über die Leitungen 13, 14 beaufschlagt, wobei ein oder zwei Verdichter 15 eingesetzt werden können. Dem Brenner 3 wird ferner von einer Brennstoffpumpe 16 über einen Wärmetauscher 17 und eine Brennstoffdosiereinheit 18 Brennstoff über eine Leitung 19 zugeführt. Die genannten drei Leitungen sind jeweils mit einem Abschaltventil versehen.Upstream and downstream of the soot filter, the connections of a differential pressure sensor 10 are arranged within the exhaust line, and there is also a temperature sensor 11 downstream of the soot filter. The signals from the sensors are processed together with other operating information in a central processing unit 12 . The burner 3 is supplied with compressed atomizing and burner air via the lines 13 , 14 , it being possible for one or two compressors 15 to be used. The burner 3 is also supplied with fuel via a line 19 from a fuel pump 16 via a heat exchanger 17 and a fuel metering unit 18 . The three lines mentioned are each provided with a shut-off valve.
Die Brennerluftleitung 14 steht mit einem Brennluftregler 20 zur Modulation der Brennerluft in Verbindung. The burner air line 14 is connected to a combustion air controller 20 for modulating the burner air.
Der Brenner 3 weist am Brennerausgang zwei Wärmetauscherzüge 21 auf, die in Längsrichtung den Abgasfilter 5 bzw. bei Aufteilung des Abgasfilters in zwei Blöcke beide Blöcke vollständig durchsetzen und stromab des Filters jeweils eine freie Austrittsfläche 22 aufweisen. Die Wärmetauscherzüge 21 werden von dem heißen Brennerabgas durchströmt und geben ihre Wärme mittels Wärmeleitung und Wärmestrahlung an die Filter 5, 6 ab.The burner 3 has two heat exchanger cables 21 at the burner outlet, which pass completely through the exhaust gas filter 5 in the longitudinal direction or, when the exhaust gas filter is divided into two blocks, and each have a free outlet surface 22 downstream of the filter. The heat exchanger trains 21 are flowed through by the hot burner exhaust gas and emit their heat to the filters 5 , 6 by means of heat conduction and heat radiation.
Wie ersichtlich, arbeitet der Brenner nicht gegen den sich stromauf des Filters 5 ausbildenden Abgasgegendruck, sondern gegen den stromab des Filters 5/6 im Bereich der Austrittsflächen 22 herrschenden Atmosphärendruck.As can be seen, the burner does not work against the exhaust gas counterpressure which forms upstream of the filter 5 , but against the atmospheric pressure prevailing downstream of the filter 5/6 in the region of the outlet surfaces 22 .
Wie aus der dem Schnitt A-A entsprechenden Fig. 2 ersichtlich, sind im Bereich des Partikelfilterblockes 5 in die Oberfläche des Wärmetauscherzuges 21 Kanäle 22 eingebracht.As can be seen from FIG. 2 corresponding to the section AA, 21 channels 22 are introduced into the surface of the heat exchanger train in the area of the particle filter block 5 .
Diese Kanäle 22 ermöglichen einem Teil des Abgasstromes den ungehinderten schnellen Durchtritt entlang der Oberfläche des Wärmetauscherzuges 21 in Richtung des Freiraums 7. Die Hauptmenge des Abgases wird durch die Filterelemente 5 geführt.These channels 22 allow part of the exhaust gas flow to pass unimpededly quickly along the surface of the heat exchanger train 21 in the direction of the free space 7 . The majority of the exhaust gas is passed through the filter elements 5 .
Wie aus Fig. 2 ersichtlich, weisen die Wärmetauscherzüge 21 einen rechteckigen Querschnitt auf und sind mit axialem Abstand zueinander angeordnet. Zwischen den Wärmetauscherzügen befindet sich ebenfalls ein Filterelement. Das Abgas kann auch in dieses Mittelelement einströmen, da die Abschlußwandung des Brenners 3 in ausreichender Entfernung von der Eintrittsebene in das Filterelement angeordnet ist. As can be seen from FIG. 2, the heat exchanger cables 21 have a rectangular cross section and are arranged at an axial distance from one another. There is also a filter element between the heat exchanger cables. The exhaust gas can also flow into this middle element, since the end wall of the burner 3 is arranged at a sufficient distance from the entry plane into the filter element.
Die Kanäle 22 an der Oberfläche der Wärmetauscherzüge 21 sind durch Stege 23 voneinander abgegrenzt und zum Beispiel durch Einfräsung im Oberflächenbereich der Wärmetauscherzüge 21 entstanden. Diese Stege 23 stehen im wärmeleitendem Kontakt mit den Filterelementen 5. Durch Anordnung der Kanäle 22 und deren Durchströmung mit dem relativ kalten Motorabgas wird vermieden, daß sich dies Filterelement 5, das nah am Brenner 3 liegt, überhitzt. Der stromab des Freiraums 7 angeordnete Partikelfilterblock 6 liegt mit seinem den Wärmetauscherzügen 21 zugewandten Oberflächen unmittelbar in wärmeleitendem Kontakt mit diesen und beläßt keinen freien Strömungsweg zwischen den Oberflächen, so daß in diesem Bereich ein starker Wärmeübergang möglich ist.The channels 22 on the surface of the heat exchanger cables 21 are delimited from one another by webs 23 and are formed, for example, by milling in the surface area of the heat exchanger cables 21 . These webs 23 are in heat-conducting contact with the filter elements 5 . By arranging the channels 22 and flowing them through with the relatively cold engine exhaust gas, it is avoided that this filter element 5 , which is close to the burner 3 , overheats. The particle filter block 6 arranged downstream of the free space 7 lies with its surfaces facing the heat exchanger cables 21 in direct thermal contact with them and leaves no free flow path between the surfaces, so that a strong heat transfer is possible in this area.
In diesen Bereichen hat sich innerhalb der Wärmetauscherzüge 21 das Brennerabgas bereits soweit abgekühlt, daß es zweckmäßig sein kann, zur zusätzlichen Optimierung des Wärmeüberganges zusätzliche Rippen 24, siehe Detail D in Fig. 4, innerhalb der Wärmetauscherzüge 21 anzubringen.In these areas, the burner exhaust gas has already cooled down within the heat exchanger cables 21 to such an extent that it may be expedient to provide additional ribs 24 , see detail D in FIG. 4, within the heat exchanger cables 21 for additional optimization of the heat transfer.
Wie aus Fig. 4 erkenntlich, sind die Partikelfilterblöcke 5 und 6 aus einzelnen Elementen 25 zusammengesetzt, die eine sinuswellenförmige Gestalt aufweisen und deren Wellenbögen sich zur Wärmeübertragung berühren und dabei zwischen sich Abgasströmungskanäle 26 ausbilden. Die Partikelfilterblöcke 5, 6, gebildet aus den einzelnen plattenförmigen Elementen 25, sind also schichtweise aufgebaut und die Wärmeübertragung erfolgt von den Wärmetauscherzügen 21 ausgehend mittels Oberflächenkontakt, wobei im Bereich des Partikelfilterblockes 5 der Wärmeübergang durch Auflage der Elemente 25 auf den Stegen 23 reduziert ist, um eine Überhitzung zu vermeiden. As can be seen from FIG. 4, the particle filter blocks 5 and 6 are composed of individual elements 25 , which have a sinusoidal wave shape and whose wave arches touch for heat transfer and thereby form exhaust gas flow channels 26 between them. The particle filter blocks 5 , 6 , formed from the individual plate-shaped elements 25 , are thus built up in layers and the heat transfer takes place from the heat exchanger cables 21 starting by means of surface contact, the heat transfer in the area of the particle filter block 5 being reduced by the elements 25 resting on the webs 23 , to avoid overheating.
Die Regeneration der Rußfilteranordnung innerhalb der Partikelfilterblöcke 5, 6 erfolgt in der Weise, daß mittels des Differenzdrucksensors 10 der Druck stromauf und stromab der Partikelfilterblöcke erfaßt wird und unter Berücksichtigung eines Temperatursignals vom Temperatursensor 11 entsprechend dem aktuellen Beladungszustand des Partikelfilters vom Zentralprozessor 12 die Brennerfunktion eingeleitet wird und die erforderliche Heizleistung durch stufige oder gleitend modulierende Anpassung in Abhängigkeit von dem Signal des Temperatursensors mittels der Brennstoffdosiereinheit 18 und des Brennluftreglers 20 gesteuert bzw. geregelt wird.The soot filter arrangement within the particle filter blocks 5 , 6 is regenerated in such a way that the pressure upstream and downstream of the particle filter blocks is detected by means of the differential pressure sensor 10 and the burner function is initiated by the central processor 12 taking into account a temperature signal from the temperature sensor 11 in accordance with the current loading state of the particle filter and the required heating power is controlled or regulated by means of step-wise or slidingly modulating adaptation as a function of the signal from the temperature sensor by means of the fuel metering unit 18 and the combustion air regulator 20 .
Claims (16)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19508804A DE19508804A1 (en) | 1995-03-15 | 1995-03-15 | Exhaust gas soot filter for Diesel engines |
FR9602758A FR2731745A1 (en) | 1995-03-15 | 1996-03-05 | CARBON BLACK FILTER ASSEMBLY FOR DIESEL ENGINES |
SE9600963A SE9600963L (en) | 1995-03-15 | 1996-03-13 | Roller filter device for diesel engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19508804A DE19508804A1 (en) | 1995-03-15 | 1995-03-15 | Exhaust gas soot filter for Diesel engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19508804A1 true DE19508804A1 (en) | 1996-09-19 |
Family
ID=7756402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19508804A Withdrawn DE19508804A1 (en) | 1995-03-15 | 1995-03-15 | Exhaust gas soot filter for Diesel engines |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE19508804A1 (en) |
FR (1) | FR2731745A1 (en) |
SE (1) | SE9600963L (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006053750A1 (en) * | 2004-11-17 | 2006-05-26 | Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh | Device for purifying exhaust gases of an internal combustion engine that contain soot |
CN107401929A (en) * | 2017-09-22 | 2017-11-28 | 萍乡市华星化工设备填料有限公司 | A kind of fume dust remover with backwashing function |
CN109357557A (en) * | 2017-09-22 | 2019-02-19 | 萍乡市华星环保工程技术有限公司 | A kind of flue gas ash removal and waste heat recycle integrated device |
CN112296056A (en) * | 2020-10-20 | 2021-02-02 | 河北中科朗博环保科技有限公司 | Multifunctional gas collecting hood for slag disintegrating pool |
WO2021047853A1 (en) * | 2019-09-13 | 2021-03-18 | Daimler Ag | Exhaust-gas system for an internal combustion engine of a motor vehicle, drive device for a motor vehicle, and motor vehicle |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4651524A (en) * | 1984-12-24 | 1987-03-24 | Arvin Industries, Inc. | Exhaust processor |
DE3608179A1 (en) * | 1986-03-12 | 1987-09-17 | Webasto Werk Baier Kg W | PARTICLE SEPARATION DEVICE IN AN EXHAUST PIPE OF A DIESEL INTERNAL COMBUSTION ENGINE |
DE3806324A1 (en) * | 1988-02-27 | 1989-08-31 | Daimler Benz Ag | SOOT COMBUSTION FILTER FOR DIESEL ENGINES |
WO1991000770A1 (en) * | 1989-07-12 | 1991-01-24 | Sintermetallwerk Krebsöge Gmbh | Permeable porous body for treating gases and/or vapours and/or liquids and process for manufacturing it |
DE4201111C2 (en) * | 1992-01-17 | 1994-03-10 | Daimler Benz Ag | Exhaust filter, in particular soot particle filter |
-
1995
- 1995-03-15 DE DE19508804A patent/DE19508804A1/en not_active Withdrawn
-
1996
- 1996-03-05 FR FR9602758A patent/FR2731745A1/en active Pending
- 1996-03-13 SE SE9600963A patent/SE9600963L/en not_active Application Discontinuation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006053750A1 (en) * | 2004-11-17 | 2006-05-26 | Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh | Device for purifying exhaust gases of an internal combustion engine that contain soot |
CN107401929A (en) * | 2017-09-22 | 2017-11-28 | 萍乡市华星化工设备填料有限公司 | A kind of fume dust remover with backwashing function |
CN109357557A (en) * | 2017-09-22 | 2019-02-19 | 萍乡市华星环保工程技术有限公司 | A kind of flue gas ash removal and waste heat recycle integrated device |
WO2021047853A1 (en) * | 2019-09-13 | 2021-03-18 | Daimler Ag | Exhaust-gas system for an internal combustion engine of a motor vehicle, drive device for a motor vehicle, and motor vehicle |
US11781466B2 (en) | 2019-09-13 | 2023-10-10 | Daimler Truck AG | Exhaust system for an internal combustion engine of a motor vehicle, drive device for a motor vehicle and motor vehicle |
CN112296056A (en) * | 2020-10-20 | 2021-02-02 | 河北中科朗博环保科技有限公司 | Multifunctional gas collecting hood for slag disintegrating pool |
Also Published As
Publication number | Publication date |
---|---|
SE9600963D0 (en) | 1996-03-13 |
FR2731745A1 (en) | 1996-09-20 |
SE9600963L (en) | 1996-09-16 |
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Date | Code | Title | Description |
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8127 | New person/name/address of the applicant |
Owner name: PIERBURG AG, 41460 NEUSS, DE |
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8110 | Request for examination paragraph 44 | ||
8127 | New person/name/address of the applicant |
Owner name: PIERBURG GMBH, 41460 NEUSS, DE |
|
8130 | Withdrawal |