DE3121274A1 - Device for cleaning a filter for an exhaust system of a heat engine - Google Patents
Device for cleaning a filter for an exhaust system of a heat engineInfo
- Publication number
- DE3121274A1 DE3121274A1 DE19813121274 DE3121274A DE3121274A1 DE 3121274 A1 DE3121274 A1 DE 3121274A1 DE 19813121274 DE19813121274 DE 19813121274 DE 3121274 A DE3121274 A DE 3121274A DE 3121274 A1 DE3121274 A1 DE 3121274A1
- Authority
- DE
- Germany
- Prior art keywords
- nozzle
- filter
- combustion chamber
- air
- fuel
- 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.)
- Ceased
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
- F01N3/023—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
- 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
- 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)
Abstract
Description
1U. 5- 1981 Br/Le ■ : - --1U. 5- 1981 Br / Le ■: - -
ROBERT BOSCH GMBH, 7000 STUTTGART 1ROBERT BOSCH GMBH, 7000 STUTTGART 1
Vorrichtung zum Reinigen eines Filters für eine Auspuffanlage einer Wärmekraftmaschine Device for cleaning a filter for an exhaust system of a heat engine
Stand der TechnikState of the art
Die Erfindung geht aus von einer Vorrichtung nach der Gattung des Hauptanspruchs. Bei bekannten Vorrichtungen dieser Art, z.B. nach der DE-OS 1 751 02Ϊ+, sind Festbestandteile aus Abgasen (Ruß oder dgl.) fangende Filter in eine solche Nähe des Motors gerückt, daß die Temperatur der Auspuffgase wenigstens bei Vollastbetrieb des. Motors diese Bestandteile zündet.The invention is based on a device according to the preamble of the main claim. In known devices of this type, e.g. according to DE-OS 1 751 02 +, are solid components from exhaust gases (soot or the like.) Trapping filters moved so close to the engine that the temperature the exhaust gases ignite these components at least when the engine is running at full load.
Nachteilig ist dabei, daß solche Wärmekraftmaschinen dann sehr schnell in ihrer Leistung nachlassen, wenn sie länger nur im Teillastbereich betrieben werden. Die Ver-^hmutzung des eingesetzten Filters wird so groß, daß auc1 Dei folgendem längerem Vollastbetrieb keine befriedigende Einigung eintritt. Ein frühzeitger Filterwechsel ist dann unumgänglich. Andererseits beansprucht überwiegender Vollastbetrieb das Filter thermisch so stark, daß es schnell verschleißt und aus diesem Grunde frühzeitig ausgewechselt werden muß.The disadvantage here is that such heat engines then decrease in their performance very quickly if they are operated only in the partial load range for a longer period of time. The encryption ^ hmutzung of the filter used is so great that AUC 1 Dei following prolonged full load operation occurs no satisfactory agreement. An early filter change is then inevitable. On the other hand, predominantly full-load operation puts so much thermal stress on the filter that it wears out quickly and therefore has to be replaced at an early stage.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Vorrichtung mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß man sie gezielt dann für die Filterreinigung einsetzen kann,The device according to the invention with the characterizing features The main claim has the advantage that you can then use it specifically for filter cleaning,
wenn die Verschmutzung des Filters dies erforderlich macht. Dabei gewährleistet die getroffene Anordnung einer Mischdüse, einer Düse für Zusatzluft und einer Zündvorrichtung bei geringem Raumbedarf einen Verbrennungsverlauf, der die Feststoffbestandteile sicher beseitigt.if the pollution of the filter makes it necessary. Included ensures the arrangement made of a mixing nozzle, a nozzle for additional air and an ignition device at low A combustion process that contains the solid constituents takes up space safely eliminated.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen Vorrichtung möglich. Sie dienen besonders der noch besseren und gleichmäßigeren Verteilung der Brenntemperatur und des für die Verbrennung der Feststoff bestandteile erforderlichen Luftüberschusses auf die gesamte Filterfläche.The measures listed in the subclaims enable advantageous developments and improvements of the im Main claim specified device possible. They are used especially for an even better and more even distribution the firing temperature and that for the combustion of the solid components required excess air on the entire filter area.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 die schematische Darstellung einer erfindungsgemäßen Vorrichtung und Figur 2 eine Teilansicht zu Figur 1 in Richtung A.An embodiment of the invention is shown in the drawing and explained in more detail in the following description. FIG. 1 shows the schematic representation of a device according to the invention and FIG. 2 shows a partial view to Figure 1 in direction A.
Beschreibung des AusführungsbeispielsDescription of the embodiment
In einer Brennkraftmaschine 1 mit einer Auspuffanlage 2 und einem in dieser Auspuffanlage 2 vorgesehenen Filter 3, ist eine Reinigungsvorrichtung h untergebracht. Die Reinigungsvorrichtung U umfaßt einen Rotationskörper 5, der die Form eines Kegelstumpfes hat und eine Brennkammer 6 einschließt. Die Grundfläche dieses Rotationskörpers 5 ist offen und zum Filter 3 hin ausgerichtet. Die so gebildete öffnung ist mit T bezeichnet. Durch die Deckfläche 8 des Rotationskörpers 5 ragt eine Mischdüse 9 in die Brennkammer 6. Eine Düse 10 für Zusatzluft ragt durch den Mantel des Rotationskörpers 5 in die Brennkammer 6. Die Längsachse dieser Düse 10 ist gegenüber der Längsachse der Mischdüse 9 und damit des Rotationskörpers 5 so geneigt, daß die durch die Düse 10 einströmende Zusatzluft spiralförmig zum Filter 3 hin gelenkt A cleaning device h is accommodated in an internal combustion engine 1 with an exhaust system 2 and a filter 3 provided in this exhaust system 2. The cleaning device U comprises a rotating body 5 which has the shape of a truncated cone and encloses a combustion chamber 6. The base of this rotary body 5 is open and oriented towards the filter 3. The opening formed in this way is denoted by T. A mixing nozzle 9 protrudes through the top surface 8 of the rotating body 5 into the combustion chamber 6. A nozzle 10 for additional air protrudes through the jacket of the rotating body 5 into the combustion chamber 6. The longitudinal axis of this nozzle 10 is opposite the longitudinal axis of the mixing nozzle 9 and thus the rotating body 5 inclined so that the additional air flowing in through the nozzle 10 is spirally directed towards the filter 3
wird. Nahe der Öffnung T der Brennkammer 6 ist eine Zündvorrichtung 11 im Mantel des Rotationskörpers 5 befestigt. Die Mischdüse 9 ist als Dralldüse ausgebildet. Über eine Kraftstoffleitung 12 ist die Mischdüse 9 an die Kraftstoff-Rücklaufleitung 13 zum Kraftstofftank 1U der Brennkraftmaschine 1 angeschlossen. Ein Druckregelventil 15 regelt den Druck, mit dem der Kraftstoff der Mischdüse 9 zugeführt wird. Ein Magnet-.ventil 16 in der Kraftstoffleitung 12 dient dem wahlweisen Sperren oder Freigeben der Kraftstoffleitung 12. Eine Flügelzellenpumpe 17 komprimiert über eine Zuleitung 18 angesaugte Luft und drückt sie über Luftleitungen und 20 einmal zur Mischdüse 9 und zum anderen zur Düse 10. An die Flügelzellenpumpe 17 ist ein Zündunterbrecher 21 angeschlossen, der über elektrische Leitungen mit einer Zündspule 22, der Zündvorrichtung 11 und einer Speisespannungsquelle 23 verbunden ist. Die Speisespannungsquelle 23 versorgt auch den Antriebsmotor der Flügelzellenpumpe 17 j das Magnetventil 16 und einen magnetgesteuerten Schalter 2 U mit Spannung. Ein Schalter 25 in der Zuleitung 26 zum Magneten des magnetgesteuerten Schalters 2k kann sowohl willkürlich ein- und ausschaltbar als auch durch einen Sensor steuerbar sein, der den Verschmutzungsgrad des Filters 3 überwacht.will. An ignition device 11 is fastened in the jacket of the rotating body 5 near the opening T of the combustion chamber 6. The mixing nozzle 9 is designed as a swirl nozzle. The mixing nozzle 9 is connected to the fuel return line 13 to the fuel tank 1U of the internal combustion engine 1 via a fuel line 12. A pressure regulating valve 15 regulates the pressure at which the fuel is supplied to the mixing nozzle 9. A solenoid valve 16 in the fuel line 12 is used to selectively block or release the fuel line 12. A vane pump 17 compresses air sucked in via a supply line 18 and presses it via air lines and 20 once to the mixing nozzle 9 and the other to the nozzle 10 Vane pump 17 is connected to an ignition interrupter 21, which is connected via electrical lines to an ignition coil 22, the ignition device 11 and a supply voltage source 23. The supply voltage source 23 also supplies the drive motor of the vane pump 17, the solenoid valve 16 and a magnetically controlled switch 2 U with voltage. A switch 25 in the supply line 26 to the magnet of the magnetically controlled switch 2k can be switched on and off arbitrarily and can also be controlled by a sensor that monitors the degree of contamination of the filter 3.
Ist der Filter 3 so weit verschmutzt, daß eine Reinigung erforderlich wird, wird der Schalter 25 geschlossen. Der Elektromagnet zum Schalter 2U schließt diesen 3 -''alter, wodurch auch das Magnetventil 16 geöffnet wir·' . Die Flügelzellenpumpe 17 läuft an und preßt Luft sowohl zur Mischdüse 9 als auch zur Düse 10. Der Kraftstoff wird in der Mischdüse 9 zerstäubt und mit Luft gemischt. Die Zusatzluft aus der Düse 10 fächert das mit Drall aus der Mischdüse 9 austretende Kraftstoff-Luft-Gemisch zusätzlich auf. Das Kraftstoff-Luft-Gemisch wird schließlich durch die Zündvorrichtung 11 gezündet und brennt in einer die gesamte Oberfläche des Filters gleichmäßig aufheizenden Flamme ab. Mit dem vorhandenen Luftüberschuß werden die im Filter 3 angesammelten Feststoffbestandteile, im wesentlichen Ruß, ebenfalls verbrannt.If the filter 3 is so dirty that cleaning is necessary, the switch 25 is closed. Of the Electromagnet to switch 2U closes this 3 - '' old, whereby the solenoid valve 16 is also opened. the Vane pump 17 starts up and presses air both to the mixing nozzle 9 and to the nozzle 10. The fuel is atomized in the mixing nozzle 9 and mixed with air. The additional air from the nozzle 10 fans that with swirl exiting from the mixing nozzle 9 fuel-air mixture in addition. The fuel-air mixture is finally ignited by the ignition device 11 and burns in one of the entire surface of the filter evenly heating flame. With the excess air present, the solid components accumulated in the filter 3, essentially soot, also burned.
Nach beendetem Abbrennen der ausgefilterten Feststoffbestandteile wird die Vorrichtung durch Öffnen des Schalters 25 wieder abgeschaltet. Durch Schließen des Magnetventils 16 ist auch die Kraftstoffzufuhr zur Brennkammer 6 unterbrochen. Das Filter 3 ist wieder frei zum leistungsverlustarmen Filtern des Abgasstromes (Pfeil 27) in der Auspuffanlage 2.After the solid components filtered out have burned off the device is switched off again by opening the switch 25. By closing the solenoid valve 16 the fuel supply to the combustion chamber 6 is also interrupted. The filter 3 is free again for low-power filtering of the exhaust gas flow (arrow 27) in the exhaust system 2.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813121274 DE3121274A1 (en) | 1981-05-29 | 1981-05-29 | Device for cleaning a filter for an exhaust system of a heat engine |
JP8895282A JPS57200611A (en) | 1981-05-29 | 1982-05-27 | Apparatus for purifying filter for exhaust apparatus of thermal engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813121274 DE3121274A1 (en) | 1981-05-29 | 1981-05-29 | Device for cleaning a filter for an exhaust system of a heat engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3121274A1 true DE3121274A1 (en) | 1982-12-16 |
Family
ID=6133426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813121274 Ceased DE3121274A1 (en) | 1981-05-29 | 1981-05-29 | Device for cleaning a filter for an exhaust system of a heat engine |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS57200611A (en) |
DE (1) | DE3121274A1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3403505A1 (en) * | 1983-02-03 | 1984-08-09 | Ford-Werke AG, 5000 Köln | METHOD AND DEVICE FOR REGENERATING A PARTICLE SEPARATION FILTER IN THE EXHAUST PIPE OF A DIESEL ENGINE |
EP0117534A1 (en) * | 1983-02-25 | 1984-09-05 | Hitachi, Ltd. | Method for controlling emission of exhaust gas by a Diesel engine |
US4615173A (en) * | 1983-11-09 | 1986-10-07 | Hitachi, Ltd. | Exhaust emission control apparatus for diesel engine |
DE3532779A1 (en) * | 1985-09-13 | 1987-03-19 | Man Technologie Gmbh | Method and device for adding a gas flow into the heating gases of a burner |
DE3532778A1 (en) * | 1985-09-13 | 1987-03-19 | Man Technologie Gmbh | DEVICE FOR REGENERATING SOOT FILTERS |
DE3545437A1 (en) * | 1985-12-20 | 1987-07-02 | Eberspaecher J | EXHAUST GAS CLEANING DEVICE FOR DIESEL ENGINES |
DE3725587A1 (en) * | 1987-08-01 | 1989-02-09 | Leistritz Ag | Diesel engine exhaust soot filter - with one unit in filter action and the other being cleaned by burn-up of the soot |
DE3734197A1 (en) * | 1987-10-09 | 1989-04-20 | Bosch Gmbh Robert | DEVICE FOR REMOVING SOLID PARTICLES, IN PARTICULAR CARBON PARTICLES, FROM THE EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE |
DE3837073A1 (en) * | 1988-10-31 | 1990-05-03 | Eberspaecher J | SOOT FILTER FOR DIESEL VEHICLES |
EP0367280A1 (en) * | 1988-11-04 | 1990-05-09 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Particle filter system |
DE4025017A1 (en) * | 1990-08-07 | 1992-02-13 | Man Technologie Gmbh | EXHAUST PIPE WITH A PARTICLE FILTER AND A REGENERATION BURNER |
DE4303720A1 (en) * | 1993-02-09 | 1994-08-11 | Kloeckner Humboldt Deutz Ag | Particle filter system |
WO2007040786A1 (en) * | 2005-09-28 | 2007-04-12 | Caterpillar Inc. | Exhaust treatment system having hydraulically-actuated air valve |
FR2893976A3 (en) * | 2005-11-30 | 2007-06-01 | Renault Sas | Particle filter regeneration device for internal combustion engine of motor vehicle, has injector to perform fuel injection, associated to oxidizer injection zone, between engine outlet and filter inlet to attain increase of temperature |
CN101979845A (en) * | 2010-10-14 | 2011-02-23 | 平原滤清器有限公司 | Diesel atomizing and air mixing device of diesel filter regeneration system |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3930789A (en) * | 1973-03-06 | 1976-01-06 | J. Eberspacher | Device for preheating waste gases of an exhaust conduit |
DE2447151B2 (en) * | 1974-10-03 | 1978-07-27 | Smit Nijmegen B.V., Nijmegen (Niederlande) | Burners for burning liquid fuel |
EP0020766A1 (en) * | 1978-07-27 | 1981-01-07 | SHIMIZU CONSTRUCTION Co. LTD. | Exhaust gas cleaning system for diesel engines |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4956024A (en) * | 1972-09-29 | 1974-05-30 | ||
JPS4971312A (en) * | 1972-11-14 | 1974-07-10 | ||
JPS5412029A (en) * | 1977-06-30 | 1979-01-29 | Texaco Development Corp | Smoke filter |
-
1981
- 1981-05-29 DE DE19813121274 patent/DE3121274A1/en not_active Ceased
-
1982
- 1982-05-27 JP JP8895282A patent/JPS57200611A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3930789A (en) * | 1973-03-06 | 1976-01-06 | J. Eberspacher | Device for preheating waste gases of an exhaust conduit |
DE2447151B2 (en) * | 1974-10-03 | 1978-07-27 | Smit Nijmegen B.V., Nijmegen (Niederlande) | Burners for burning liquid fuel |
EP0020766A1 (en) * | 1978-07-27 | 1981-01-07 | SHIMIZU CONSTRUCTION Co. LTD. | Exhaust gas cleaning system for diesel engines |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3403505A1 (en) * | 1983-02-03 | 1984-08-09 | Ford-Werke AG, 5000 Köln | METHOD AND DEVICE FOR REGENERATING A PARTICLE SEPARATION FILTER IN THE EXHAUST PIPE OF A DIESEL ENGINE |
EP0117534A1 (en) * | 1983-02-25 | 1984-09-05 | Hitachi, Ltd. | Method for controlling emission of exhaust gas by a Diesel engine |
US4615173A (en) * | 1983-11-09 | 1986-10-07 | Hitachi, Ltd. | Exhaust emission control apparatus for diesel engine |
DE3532779A1 (en) * | 1985-09-13 | 1987-03-19 | Man Technologie Gmbh | Method and device for adding a gas flow into the heating gases of a burner |
DE3532778A1 (en) * | 1985-09-13 | 1987-03-19 | Man Technologie Gmbh | DEVICE FOR REGENERATING SOOT FILTERS |
DE3545437A1 (en) * | 1985-12-20 | 1987-07-02 | Eberspaecher J | EXHAUST GAS CLEANING DEVICE FOR DIESEL ENGINES |
DE3725587A1 (en) * | 1987-08-01 | 1989-02-09 | Leistritz Ag | Diesel engine exhaust soot filter - with one unit in filter action and the other being cleaned by burn-up of the soot |
US4858431A (en) * | 1987-10-09 | 1989-08-22 | Robert Bosch Gmbh | Apparatus for removing solid particles, especially soot particles, from the exhaust gas of an internal combustion engine |
DE3734197A1 (en) * | 1987-10-09 | 1989-04-20 | Bosch Gmbh Robert | DEVICE FOR REMOVING SOLID PARTICLES, IN PARTICULAR CARBON PARTICLES, FROM THE EXHAUST GAS FROM AN INTERNAL COMBUSTION ENGINE |
DE3837073A1 (en) * | 1988-10-31 | 1990-05-03 | Eberspaecher J | SOOT FILTER FOR DIESEL VEHICLES |
EP0367280A1 (en) * | 1988-11-04 | 1990-05-09 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Particle filter system |
DE3837472A1 (en) * | 1988-11-04 | 1990-05-10 | Kloeckner Humboldt Deutz Ag | PARTICLE FILTER SYSTEM |
DE3837472C2 (en) * | 1988-11-04 | 1998-09-24 | Deutz Ag | Particulate filter system |
DE4025017A1 (en) * | 1990-08-07 | 1992-02-13 | Man Technologie Gmbh | EXHAUST PIPE WITH A PARTICLE FILTER AND A REGENERATION BURNER |
DE4303720A1 (en) * | 1993-02-09 | 1994-08-11 | Kloeckner Humboldt Deutz Ag | Particle filter system |
DE4303720C2 (en) * | 1993-02-09 | 2003-12-24 | Deutz Ag | particulate filter system |
WO2007040786A1 (en) * | 2005-09-28 | 2007-04-12 | Caterpillar Inc. | Exhaust treatment system having hydraulically-actuated air valve |
FR2893976A3 (en) * | 2005-11-30 | 2007-06-01 | Renault Sas | Particle filter regeneration device for internal combustion engine of motor vehicle, has injector to perform fuel injection, associated to oxidizer injection zone, between engine outlet and filter inlet to attain increase of temperature |
CN101979845A (en) * | 2010-10-14 | 2011-02-23 | 平原滤清器有限公司 | Diesel atomizing and air mixing device of diesel filter regeneration system |
Also Published As
Publication number | Publication date |
---|---|
JPS57200611A (en) | 1982-12-08 |
JPH0337006B2 (en) | 1991-06-04 |
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Legal Events
Date | Code | Title | Description |
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8110 | Request for examination paragraph 44 | ||
8125 | Change of the main classification |
Ipc: F01N 3/02 |
|
8131 | Rejection |