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 gasInfo
- 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
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
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)
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 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4229723C1 true DE4229723C1 (en) | 1993-09-16 |
Family
ID=6467329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4229723A Expired - Fee Related DE4229723C1 (en) | 1992-09-05 | 1992-09-05 | Regeneratable filter unit of modular structure - for particle removal from diesel exhaust gas |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4229723C1 (en) |
Cited By (3)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4026375C1 (en) * | 1990-08-21 | 1992-01-30 | Fa. J. Eberspaecher, 7300 Esslingen, De |
-
1992
- 1992-09-05 DE DE4229723A patent/DE4229723C1/en not_active Expired - Fee Related
Patent Citations (1)
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)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1628166C3 (en) | Pressurized gas drying device | |
EP1937962B1 (en) | Internal combustion engine in particular on a motor vehicle with a fuel filter device | |
EP2378090B1 (en) | Oil mist separator | |
DE4300988C1 (en) | Oxygen-enriched air generator contg. zeolite bed giving pure prod. - with chamber in outlet system opened during adsorption and sealed during regeneration phase, e.g. for use in vehicle or aircraft | |
EP2145099A1 (en) | Fuel supply device, particularly for an internal combustion engine | |
DE3005146C2 (en) | Compressed gas connection for dust gas filters | |
DE2035298A1 (en) | System for reducing air pollution from the operation of internal combustion engines | |
EP2375173A1 (en) | Extracting device and odour filter | |
EP1938884A1 (en) | Filter device for removing particulate matter from a gas flow loaded with particulate matter and filter system | |
DE10203959A1 (en) | storage device | |
DE2521494B2 (en) | Device for cleaning the exhaust gases of an internal combustion engine | |
DE4229723C1 (en) | Regeneratable filter unit of modular structure - for particle removal from diesel exhaust gas | |
DE1080977B (en) | Filter with return device for liquids or gases | |
DE3622153C1 (en) | Filter arrangement with filter and filter base | |
DE102005062473A1 (en) | Filter service system for removing matter from filtering device, includes gas pressurization assembly having orifices positioned on the surface to direct flow beyond blocking apparatus of the filtering device, and matter collection assembly | |
EP0774287A1 (en) | Back flushable filter with gas | |
DE3826246A1 (en) | PROTECTIVE FILTER | |
EP3033259B1 (en) | Condensation device for pneumatic brake cylinders | |
DE3928518A1 (en) | Device for separating manure slurry - has separating cylinder with inlet opening for raw slurry with axially displaced outlet opening for solids | |
AT393118B (en) | SLUDGE DRAINAGE DEVICE | |
DE10115679A1 (en) | diesel pile | |
DE1962120C3 (en) | Drainage device for compressed air systems in motor vehicles | |
EP1105202B1 (en) | Annular gap injector | |
DE3007639A1 (en) | IC engine exhaust gas filter with renewable cartridge - has filter material around perforated tubes between end-plates one of which has outlet holes | |
DE3601651C1 (en) | Regenerable sorption trap for vacuum plants |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |