DE4229723C1 - Regeneratable filter unit of modular structure - for particle removal from diesel exhaust gas - Google Patents

Regeneratable filter unit of modular structure - for particle removal from diesel exhaust gas

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Publication number
DE4229723C1
DE4229723C1 DE4229723A DE4229723A DE4229723C1 DE 4229723 C1 DE4229723 C1 DE 4229723C1 DE 4229723 A DE4229723 A DE 4229723A DE 4229723 A DE4229723 A DE 4229723A DE 4229723 C1 DE4229723 C1 DE 4229723C1
Authority
DE
Germany
Prior art keywords
filter
exhaust gas
slide
housing disc
regenerable
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 - Fee Related
Application number
DE4229723A
Other languages
German (de)
Inventor
Hans 7990 Friedrichshafen De Sudmanns
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.)
Rolls Royce Solutions GmbH
Original Assignee
MTU Friedrichshafen GmbH
MTU Motoren und Turbinen Union Friedrichshafen 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 MTU Friedrichshafen GmbH, MTU Motoren und Turbinen Union Friedrichshafen GmbH filed Critical MTU Friedrichshafen GmbH
Priority to DE4229723A priority Critical patent/DE4229723C1/en
Application granted granted Critical
Publication of DE4229723C1 publication Critical patent/DE4229723C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2407—Filter candles
    • 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
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
    • 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
    • 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
    • F01N3/05—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 air, e.g. by mixing exhaust with 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
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/306—Preheating additional air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/30—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for treatment of exhaust gases from IC Engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/08—Granular material
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

A regenerable filter unit, for sepg. particles from diesel engine exhaust gas, has filter candles (14,15) of different active lengths arranged in the filtering space of a common container with a device for regenerating the filter candles by burn-off of deposited particles by means of external heat supply. The novelty is that (i) the container consists of front and back plates and one or more interposed housing discs (11) which form the filtering space; (ii) the filtering space has an exhaust gas channel, formed by a central opening of the housing disc (11), and an eccentric clean gas channel (19); (iii) an annular channel (12) is formed at the outer periphery of the housing disc (11) and connects at both ends with the clean gas channel (19); and (iv) the filter candles (14,15) are arranged radially within the housing disc (11) with their open ends penetrating the inner wall (20) of the annular channel (12). ADVANTAGE - The filter unit is easy to integrate into a diesel engine exhaust system and its modular construction facilitates adaptation of the filter size to the exhaust gas volumetric flow by fitting a corresponding number of filter candle-holding housing discs.

Description

Die Erfindung bezieht sich auf eine regenerierbare Filtereinrichtung zum Abscheiden von Partikeln aus dem Abgas eines Dieselmotors nach dem Oberbegriff des ersten Patentanspruchs. Die Filtereinrichtung ist geeignet, eine den gesetzlichen Auflagen entsprechende Emissionsverbesserung der Abgase eines Dieselmotors zu erreichen.The invention relates to a regenerable Filter device for separating particles from the exhaust gas a diesel engine according to the preamble of the first Claim. The filter device is suitable for a according to legal requirements corresponding emission improvement of the To reach the exhaust gases of a diesel engine.

Aus der DE 40 26 375 C1 ist eine gattungsgemäße Filtereinrichtung bekannt, bei der mehrere Filterkerzen koaxial nebeneinander in einem zylindrischen Behälter parallel zu dessen Längsachse angeordnet sind. Die aktive Länge der Filterkerzen ist je nach Lage im Filterbehälter unterschiedlich lang ausgebildet, was ein unbefriedigendes Verhältnis von aktiver Filterfläche zum Bauvolumen des Filterbehälters ergibt. Bei Anpassung der Filtergröße an das Abgasaufkommen eines Dieselmotors durch Zusammenschalten mehrerer zylindrischer Filterbehälter ist eine aufwendige, sperrige Abgasleitungsführung mit entsprechend großem Bauvolumen erforderlich. Außerdem muß in jedem Filterbehälter eine Einrichtung zur Regenerierung der Filterkerzen durch Abbrennen der angelagerten Partikel angeordnet sein, was einen unwirtschaftlichen Mehraufwand erfordert.DE 40 26 375 C1 is a generic one Known filter device in which several filter cartridges coaxially side by side in a cylindrical container parallel to it Longitudinal axis are arranged. The active length of the filter cartridges is of different lengths depending on the position in the filter container trained what an unsatisfactory ratio of active Filter area to the construction volume of the filter container results. At Adjustment of the filter size to the amount of exhaust gas Diesel engine by interconnecting several cylindrical Filter container is an elaborate, bulky Exhaust pipe routing with a correspondingly large construction volume required. In addition, a must in each filter container Device for regenerating the filter candles by burning them off of the attached particles, which can be arranged requires uneconomical additional effort.

Es ist deshalb Aufgabe der Erfindung, eine regenerierbare Filtereinrichtung zum Abscheiden von Partikeln aus dem Abgas eines Dieselmotors zu schaffen, die die Integration in die Abgasanlage eines Dieselmotors vereinfacht.It is therefore an object of the invention to provide a regenerable Filter device for separating particles from the exhaust gas  to create a diesel engine that integrates into the Exhaust system of a diesel engine simplified.

Diese Aufgabe wird erfindungsgemäß mit den kennzeichnenden Merkmalen des ersten Patentanspruches gelöst. Die modulare Bauweise der Filtereinrichtung bewirkt eine einfache Anpaßbarkeit der Filtergröße an vorgegebene Abgasvolumenströme durch die Anordnung einer entsprechenden Anzahl von Filterkerzen tragenden Gehäusescheiben. Die weitere Ausgestaltung der Erfindung ergibt sich aus den Merkmalen der Ansprüche 2 bis 5. Mit dieser Anordnung der Einrichtung zur Regenerierung der Filterkerzen ist eine einfache Teilabschaltung von Filterfläche realisiert. Durch entsprechende Hubsteuerung des Ringschiebers sind jeweils nur die Filterkerzen einer Gehäusescheibe der Regenerierung durch Abbrennen unterworfen, während die restlichen Filterkerzen weiterhin funktionsfähig im Abgasstrom liegen.This object is achieved with the characteristic Features of the first claim solved. The modular Construction of the filter device causes a simple Adaptability of the filter size to specified exhaust gas volume flows by arranging an appropriate number of filter cartridges bearing housing washers. The further design of the Invention results from the features of claims 2 to 5. With this arrangement of the device for regeneration Filter candles is a simple partial shutdown of the filter surface realized. By appropriate stroke control of the ring slide are only the filter cartridges of a housing disc Subject to regeneration by burning off during the remaining filter cartridges continue to function in the exhaust gas flow lie.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß mit der kompakten Bauform der Filtereinrichtung wirtschaftliche Herstellkosten erreicht sind, daß ein günstiges Verhältnis von aktiver Filterfläche zum Bauvolumen des Filterbehälters erzielt ist, daß sich eine übersichtliche Abgasrohrführung ergibt, die den Anbau der Filtereinrichtung am Dieselmotor erleichtert, daß sich die Montage der Filterkerzen in die tellerförmigen Gehäusescheiben einfach bewerkstelligen läßt und daß nur eine einzige zentrale Einrichtung zur Regenerierung der Filterkerzen erforderlich ist.The advantages achieved with the invention are in particular in that with the compact design of the filter device economic manufacturing costs are achieved that a cheap Ratio of active filter area to the construction volume of the Filter container is achieved that a clear Exhaust pipe guide results in the installation of the filter device on Diesel engine makes it easier to assemble the filter cartridges easy to accomplish in the plate-shaped housing disks lets and that only a single central facility for Regeneration of the filter cartridges is required.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird nachstehend näher beschrieben. Es zeigen:An embodiment of the invention is in the drawings shown and will be described in more detail below. Show it:

Fig. 1 einen Längsschnitt einer Filtereinrichtung nach Linie I-I in Fig. 2; Fig. 1 is a longitudinal section of a filter device according to line II in Fig. 2;

Fig. 2 einen Querschnitt der Filtereinrichtung nach Linie II-II in Fig. 1. Fig. 2 shows a cross-section of the filter device according to line II-II in FIG. 1.

Eine regenerierbare Filtereinrichtung 10 zum Abscheiden von Partikeln aus dem Abgas eines Dieselmotors ist in einem Behälter angeordnet, der aus einem Stapel tellerförmiger, identischer Gehäusescheiben 11 sowie je einer vorderen und hinteren Frontplatte 16, 17 besteht. Die vordere Frontplatte 16 weist einen etwa zentrischen Abgaseintrittsstutzen 22 und einen exzentrischen Reingasaustrittsstutzen 23 auf. Jede Gehäusescheibe 11 besteht aus einer etwa radialen Wand 13 mit einer etwa zentrischen Öffnung 21 und einem am Außenumfang angeordneten Ringkanal 12, der beidendig in eine exzentrische Öffnung 24 mündet. Die zentrische Öffnung 21 in der Gehäusescheibe 11 bildet einen mit dem Abgaseintrittsstutzen 22 zusammenwirkenden Abgaskanal 18 und die exzentrische Öffnung 24 bildet zusammen mit dem Reingasaustrittsstutzen 23 einen Reingaskanal 19. Mit Abstand von der radialen Wand 13 sind an jeder Gehäusescheibe 11 etwa radial ausgerichtete, von außen nach innen durchströmte Filterkerzen 14, 15 befestigt, deren offene Enden in entsprechenden Bohrungen der Innenwand 20 des Ringkanals 12 stecken. Zur Unterbringung einer möglichst großen Anzahl von Filterkerzen auf der Wandfläche sind die Filterkerzen 15 kürzer als die Filterkerzen 14 ausgebildet. Jede Filterkerze 14, 15 besteht aus einem einendig geschlossenen Tragrohr mit durchlässiger Wand und einem Schlauchüberzug aus keramischem Filtermaterial.A regenerable filter device 10 for separating particles from the exhaust gas of a diesel engine is arranged in a container which consists of a stack of plate-shaped, identical housing disks 11 and a front and rear front plate 16 , 17 each. The front faceplate 16 has an approximately central exhaust gas inlet connection 22 and an eccentric clean gas outlet connection 23 . Each housing disc 11 consists of an approximately radial wall 13 with an approximately central opening 21 and an annular channel 12 arranged on the outer circumference, which ends at both ends in an eccentric opening 24 . The central opening 21 in the housing disc 11 forms an exhaust gas duct 18 which interacts with the exhaust gas inlet connection 22 and the eccentric opening 24 forms a clean gas duct 19 together with the clean gas outlet connection 23 . At a distance from the radial wall 13 , approximately radially aligned filter candles 14 , 15 , from which the open ends flow inward, are fastened to each housing disc 11 , the open ends of which are inserted in corresponding bores in the inner wall 20 of the annular channel 12 . In order to accommodate the largest possible number of filter cartridges on the wall surface, the filter cartridges 15 are shorter than the filter cartridges 14 . Each filter candle 14 , 15 consists of a single-ended support tube with a permeable wall and a hose cover made of ceramic filter material.

Innerhalb des Abgaskanals 18 ist ein axial schrittweise verschiebbarer Schieber 25 angeordnet, dessen rohrförmiger Mantel 26 über drei radiale Speichen 27 mit einer Kolbenstange 28 verbunden ist. Die Länge des Mantels 26 ist etwas größer als die axiale Höhe einer Gehäusescheibe 11 ausgebildet.Arranged within the exhaust duct 18 is an axially displaceable slide 25 , the tubular jacket 26 of which is connected to a piston rod 28 via three radial spokes 27 . The length of the jacket 26 is somewhat larger than the axial height of a housing disc 11 .

Der Schieber 25 ist mit einer durch die Kolbenstange 28 und die Speichen 27 geführten Kanal 30 ausgestattet, der am Außenumfang des Mantels 26 mündet. The slide 25 is equipped with a channel 30 which is guided through the piston rod 28 and the spokes 27 and opens out on the outer circumference of the jacket 26 .

Zum Auslösen der Regenerierung der mit Partikeln beladenen Filterkerzen 14, 15 einer Gehäusescheibe 11 wird der Schieber 25 durch eine weiter unten beschriebene Stelleinrichtung 31 in eine Position geschoben, bei der der Filterraum zwischen zwei Gehäusescheiben durch den Mantel 26 des Schiebers vom Abgaskanal 18 abgesperrt ist.In order to trigger the regeneration of the filter cartridges 14 , 15 of a housing disc 11 loaded with particles, the slide 25 is pushed by a setting device 31 described below into a position in which the filter space between two housing discs is blocked by the exhaust duct 18 by the jacket 26 of the slide.

Durch den Kanal 30 erfolgt daraufhin die Zufuhr von auf 550 bis 600°C erhitzter Druckluft in den Filterraum, wodurch das Abbrennen der auf den Filterkerzen 14, 15 abgelagerten Partikel ausgelöst wird. Nach beendigter Regenerierung einer Filterkerzenebene wird der Schieber 25 um eine Gehäusescheibendicke weitergeschoben, damit die Filterkerzen 14, 15 der nächsten Ebene regeneriert werden können. Da immer nur eine Filterebene zur Zeit regeneriert wird, bleiben die restlichen Filterkerzen 14, 15 funktionsfähig, so daß die Regenerierung der Filtereinrichtung 10 ohne Betriebsunterbrechung des Dieselmotores durchführbar ist.The channel 30 then supplies compressed air heated to 550 to 600 ° C. into the filter space, which triggers the burning off of the particles deposited on the filter candles 14 , 15 . After the regeneration of a filter cartridge level has been completed, the slide 25 is pushed further by a housing disc thickness so that the filter cartridges 14 , 15 of the next level can be regenerated. Since only one filter level is being regenerated at a time, the remaining filter candles 14 , 15 remain functional, so that the regeneration of the filter device 10 can be carried out without interrupting the operation of the diesel engine.

Die Stelleinrichtung 31 besteht (hier vereinfachend dargestellt) aus einem Zylinder 32, einem auf der Kolbenstange 28 des Schiebers 25 befestigten Kolben 33, einer Rückstellfeder 34 und einem Druckluftanschluß 35. Um den Schieber in eine bestimmte Position zu schieben, wird der Kolben 33 mit Druckluft beaufschlagt, die einen der Federkraft in der jeweiligen Position entsprechenden Druck aufweist. In Ruhestellung wird der Schieber 25 durch die Rückstellfeder 34 bei drucklosem Druckluftanschluß 25 in eine an der hinteren Frontplatte 17 ausgebildete Kammer 36 zurückgezogen.The actuating device 31 consists (shown here in simplified form) of a cylinder 32 , a piston 33 fastened on the piston rod 28 of the slide 25 , a return spring 34 and a compressed air connection 35 . In order to push the slide into a certain position, the piston 33 is pressurized with compressed air which has a pressure corresponding to the spring force in the respective position. In the rest position, the slide 25 is withdrawn by the return spring 34 when the compressed air connection 25 is depressurized into a chamber 36 formed on the rear front plate 17 .

Claims (5)

1. Regenerierbare Filtereinrichtung zum Abscheiden von Partikeln aus dem Abgas eines Dieselmotors, wobei eine Vielzahl rohrförmiger, einendig offener Filterkerzen unterschiedlicher aktiver Länge im Filterraum eines gemeinsamen Behälters angeordnet sind, und der Behälter eine Einrichtung aufweist, die mittels externer Wärmezufuhr eine Regenerierung der Filterkerzen durch Abbrennen der angelagerten Partikel bewirkt, dadurch gekennzeichnet, daß der Behälter aus einer vorderen und einer hinteren Frontplatte (16, 17) mit wenigstens einer dazwischenliegenden, tellerförmigen, Filterraum bildenden Gehäusescheibe (11) besteht, daß der Filterraum einen durch eine etwa zentrische Öffnung (21) der Gehäusescheibe (11) gebildeten Abgaskanal (18) und einen exzentrisch angeordneten Reingaskanal (19) aufweist, daß am Außenumfang der tellerförmigen Gehäusescheibe (11) eine beidendig in den exzentrischen Reingaskanal (19) mündender Ringkanal (12) ausgebildet ist und daß die Filterkerzen (14, 15) mit ihrem offenen Ende die Innenwand (20) des Ringkanals (12) durchdringend etwa radial innerhalb der tellerförmigen Gehäusescheibe (11) angeordnet sind.1. Regenerable filter device for separating particles from the exhaust gas of a diesel engine, wherein a plurality of tubular, open-ended filter cartridges of different active lengths are arranged in the filter space of a common container, and the container has a device that regenerates the filter candles by burning them off by means of external heat supply of the accumulated particles, characterized in that the container consists of a front and a rear front plate ( 16 , 17 ) with at least one plate-shaped housing disc ( 11 ) in between, the filter space having a through an approximately central opening ( 21 ) the housing disc ( 11 ) formed exhaust duct ( 18 ) and an eccentrically arranged clean gas duct ( 19 ) that on the outer periphery of the plate-shaped housing disc ( 11 ) is formed at both ends in the eccentric clean gas duct ( 19 ) ring channel ( 12 ) and there ß the filter candles ( 14 , 15 ) with their open end, the inner wall ( 20 ) of the annular channel ( 12 ) penetrating approximately radially within the plate-shaped housing disc ( 11 ) are arranged. 2. Regenerierbare Filtereinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß innerhalb des Abgaskanals (18) ein axial verschiebbarer Schieber (25) angeordnet ist, der einen rohrförmigen, über Speichen (27) mit einer Kolbenstange (28) verbundenen Mantel (26) aufweist.2. Regenerable filter device according to claim 1, characterized in that within the exhaust duct ( 18 ) an axially displaceable slide ( 25 ) is arranged, which has a tubular, via spokes ( 27 ) with a piston rod ( 28 ) connected to the jacket ( 26 ). 3. Regenerierbare Filtereinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Schieber (25) einen durch die Kolbenstange (28) und die Speichen (27) geführten Kanal (29, 30) aufweist, der am Schieberumfang mündet. 3. Regenerable filter device according to claim 2, characterized in that the slide ( 25 ) has a through the piston rod ( 28 ) and the spokes ( 27 ) guided channel ( 29 , 30 ) which opens on the circumference of the slide. 4. Regenerierbare Filtereinrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Kolbenstange (28) des Schiebers (25) mit einer schrittweise wirkenden Stelleinrichtung (31) zusammenarbeitet.4. Regenerable filter device according to claim 3, characterized in that the piston rod ( 28 ) of the slide ( 25 ) cooperates with a step-by-step adjusting device ( 31 ). 5. Regenerierbare Filtereinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß eine der Frontplatten (17) eine zylindrische Kammer (36) zur Aufnahme des Schiebers (25) in Ruhestellung aufweist.5. Regenerable filter device according to claim 2, characterized in that one of the front plates ( 17 ) has a cylindrical chamber ( 36 ) for receiving the slide ( 25 ) in the rest position.
DE4229723A 1992-09-05 1992-09-05 Regeneratable filter unit of modular structure - for particle removal from diesel exhaust gas Expired - Fee Related DE4229723C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4229723A DE4229723C1 (en) 1992-09-05 1992-09-05 Regeneratable filter unit of modular structure - for particle removal from diesel exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4229723A DE4229723C1 (en) 1992-09-05 1992-09-05 Regeneratable filter unit of modular structure - for particle removal from diesel exhaust gas

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DE4229723C1 true DE4229723C1 (en) 1993-09-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042428A1 (en) * 1997-03-21 1998-10-01 Siemens Aktiengesellschaft Filter for a dust-laden gas and filter candle for said filter
AT500745B1 (en) * 2005-02-02 2006-03-15 Pankl Emission Control Systems Exhaust gas cleaning device for e.g. car, has cleaning modules arranged with specific angle of inclination to longitudinal axis of housing comprising inlet and outlet openings for gas, where modules are formed from metallic foam
CN115341977A (en) * 2021-05-12 2022-11-15 阿法拉伐股份有限公司 Exhaust gas cleaning system and method for cleaning exhaust gas and use of an exhaust gas cleaning system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026375C1 (en) * 1990-08-21 1992-01-30 Fa. J. Eberspaecher, 7300 Esslingen, De

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026375C1 (en) * 1990-08-21 1992-01-30 Fa. J. Eberspaecher, 7300 Esslingen, De

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042428A1 (en) * 1997-03-21 1998-10-01 Siemens Aktiengesellschaft Filter for a dust-laden gas and filter candle for said filter
AT500745B1 (en) * 2005-02-02 2006-03-15 Pankl Emission Control Systems Exhaust gas cleaning device for e.g. car, has cleaning modules arranged with specific angle of inclination to longitudinal axis of housing comprising inlet and outlet openings for gas, where modules are formed from metallic foam
CN115341977A (en) * 2021-05-12 2022-11-15 阿法拉伐股份有限公司 Exhaust gas cleaning system and method for cleaning exhaust gas and use of an exhaust gas cleaning system
CN115341977B (en) * 2021-05-12 2023-12-26 阿法拉伐股份有限公司 Exhaust gas cleaning system and method for cleaning exhaust gas and use of an exhaust gas cleaning system

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