DE4202960A1 - Soot filter with ring space - Google Patents

Soot filter with ring space

Info

Publication number
DE4202960A1
DE4202960A1 DE4202960A DE4202960A DE4202960A1 DE 4202960 A1 DE4202960 A1 DE 4202960A1 DE 4202960 A DE4202960 A DE 4202960A DE 4202960 A DE4202960 A DE 4202960A DE 4202960 A1 DE4202960 A1 DE 4202960A1
Authority
DE
Germany
Prior art keywords
filter
exhaust gases
soot
burner
ring space
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Withdrawn
Application number
DE4202960A
Other languages
German (de)
Inventor
Karl-Heinz Dipl-Ing Krumme
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.)
ERNST-Apparatebau GmbH and Co
Original Assignee
ERNST-Apparatebau GmbH and Co
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 ERNST-Apparatebau GmbH and Co filed Critical ERNST-Apparatebau GmbH and Co
Priority to DE4202960A priority Critical patent/DE4202960A1/en
Priority to DE59206819T priority patent/DE59206819D1/en
Priority to AT92103705T priority patent/ATE140761T1/en
Priority to DE9219003U priority patent/DE9219003U1/en
Priority to EP92103705A priority patent/EP0554499B1/en
Priority to JP4182256A priority patent/JP2577849B2/en
Priority to BR929203675A priority patent/BR9203675A/en
Priority to HU9203047A priority patent/HUT66635A/en
Priority to KR1019920018364A priority patent/KR930018135A/en
Priority to SK3638-92A priority patent/SK363892A3/en
Priority to CS923638A priority patent/CZ363892A3/en
Publication of DE4202960A1 publication Critical patent/DE4202960A1/en
Priority to GR960402377T priority patent/GR3021024T3/en
Withdrawn legal-status Critical Current

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
    • 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
    • F01N3/0335—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 with exhaust silencers in a single housing
    • 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)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Materials (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Saccharide Compounds (AREA)

Abstract

The invention relates to a soot filter (1) for diesel engines with a burner (S) which burns off the soot layers deposited on the filter tubes (8), the engine exhaust gases being guided through a tangential inlet (2) into a ring space (4) which surrounds the burner (5) and from which they pass via the combustion chamber (5a) into the filter space (7), the region of the ring space (4) into which the exhaust gases enter being separated by a wall (13) from the region of the ring space (4) into which the exhaust gases pass after passing completely through the ring space. <IMAGE>

Description

Die Erfindung betrifft einen Rußfilter für Dieselmotoren mit einem Brenner, der die auf den Filterkerzen abgesetzten Rußschichten abbrennt, wobei die Motorenabgase durch einen tangentialen Einlaß in einen, den Brenner umgebenden Ringraum geführt werden, von dem sie über die Brennkammer in den Filterraum gelangen.The invention relates to a soot filter for diesel engines a burner that placed on the filter candles Soot layers burn off, the engine exhaust gases through a tangential inlet into one surrounding the burner Annulus are guided, from which they in the combustion chamber get to the filter room.

Es ist bekannt, bei einem Rußfilter das Abgas des Dieselmotors durch einen tangentialen Einlaß in einen Ringraum einzuführen, der den Brenner umgibt und von dem die Abgase zum Filterraum strömen. Die im Ringraum kreisenden Abgase stören hierbei die durch den Einlaß eingehenden Gase, so daß erhebliche Verwirbelungen entstehen, die den gesamten Durchströmungswiderstand des Rußfilters erhöhen.It is known that the exhaust gas of the soot filter Diesel engine through a tangential inlet into one Introduce annulus that surrounds the burner and from which the exhaust gases flow to the filter chamber. The one in the annulus orbiting exhaust gases interfere with those through the inlet incoming gases, so that considerable turbulence arise that the total flow resistance of the Increase the soot filter.

Aufgabe der Erfindung ist es, bei einem Rußfilter der eingangs genannten Art einen möglichst niedrigen Gesamt­ durchströmungswiderstand zu erreichen. The object of the invention is in a soot filter the lowest possible total at the outset to achieve flow resistance.  

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Bereich der Ringkammer, in den die Abgase eintreten von dem Bereich der Ringkammer, in den die Abgase nach vollständigem Durchströmen der Ringkammer gelangen, durch eine Wand getrennt ist.This object is achieved in that the Area of the annulus into which the exhaust gases enter Area of the annular chamber in which the exhaust gases after complete Pass through the annular chamber through a wall is separated.

Durch eine solche Wand, insbesondere durch ein Leitblech wird dafür gesorgt, daß der durch den Einlaß in den Ringraum gelangende Abgasstrom keinen zusätzlichen Verwirbelungen ausgesetzt ist und damit den Ringraum verhältnismäßig ungestört durchströmen kann, um dann spätestens beim Leitblech den Ringraum zu verlassen und zum Filterraum zu gelangen. Damit wird eine gleichmäßige Strömung vor, in und hinter dem Ringraum erreicht, so daß der gesamte Durchströmungswiderstand des Rußfilters wesentlich herabgesetzt wird. Ein solch geringer Durchströmungswiderstand des Gesamtsystems führt zu dem erheblichen Vorteil, daß entsprechend mehr Ruß abgelagert werden kann, da eine dickere Rußschicht aufliegen kann, ehe der Druck zum Durchströmen des Rußfilters nicht mehr ausreicht. Somit kann ein Abbrennen in größeren Zeitabständen erfolgen und die Lebensdauer des Rußfilters ist höher.Through such a wall, especially through a baffle it is ensured that the through the inlet in the Exhaust gas stream entering the annulus has no additional Turbulence is exposed and thus the annulus can flow through relatively undisturbed, then leave the annulus at the baffle at the latest and to get to the filter room. This will make it even Flow in front of, in and behind the annulus, so that the total flow resistance of the soot filter is significantly reduced. Such a small one Flow resistance of the overall system leads to this considerable advantage that more soot is deposited because there is a thicker layer of soot before the pressure to flow through the soot filter no longer is sufficient. This can cause a burn in larger ones Time intervals occur and the lifespan of the soot filter is higher.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher beschrieben. Es zeigtAn embodiment of the invention is in the drawings shown and is described in more detail below. It shows

Fig. 1 Einen axialen Längsschnitt durch den Rußfilter und Fig. 1 An axial longitudinal section through the soot filter and

Fig. 2 einen axialen Längsschnitt durch das Gehäuse im Bereich des Brenners, Fig. 2 is an axial longitudinal section through the housing in the region of the burner,

Fig. 3 einen Schnitt durch den Rußfilter nach III-III in Fig. 1. Fig. 3 a section through the soot filter according to III-III in FIG. 1.

Der Rußfilter weist ein Gehäuse 1 auf, mit einem seitlichen tangential angeordneten Einlaß 2 und einem koaxial angeordnetem Auslaß 3. Der Einlaß führt in einen Ringraum 4, der einen Brenner 5 koaxial umgibt. Die vom Brenner 5 ausgehenden Flammgase werden durch eine Leitplatte 6 umgelenkt und in den Filterraum 7 geführt, in dem sich eine größere Anzahl von Filterkerzen 8 parallel zueinander und Achsparallel zum Gehäuse 1 erstrecken.The soot filter has a housing 1 with a lateral tangentially arranged inlet 2 and a coaxially arranged outlet 3 . The inlet leads into an annular space 4 which coaxially surrounds a burner 5 . The flame gases emerging from the burner 5 are deflected by a guide plate 6 and guided into the filter space 7 , in which a larger number of filter candles 8 extend parallel to one another and axially parallel to the housing 1 .

Die Filterkerzen 8 sind im dargestellten Ausführungsbeispiel Tiefenfilter mit keramischen Wicklungen 9 auf gelochten Metallfilterrohren 10. Die Rohre 10 sind auf dem, dem Brenner zugekehrtem Ende verschlossen und münden mit den gegenüberliegenden Enden in einem Sammelraum 11, der von einem Schalldämpfer 12 umgeben ist und zu dem Auslaß 3 führt.In the exemplary embodiment shown, the filter candles 8 are depth filters with ceramic windings 9 on perforated metal filter tubes 10 . The tubes 10 are closed on the end facing the burner and open with the opposite ends in a collecting space 11 which is surrounded by a silencer 12 and leads to the outlet 3 .

Die Abgase des Dieselmotors gelangen durch den Einlaß 2 in den Ringraum 4 und von dort über die Brennkammer 4a in den Filterraum 7. Sie durchströmen den Filterraum 7 und durchdringen die zylindrischen Wände 8a der Filterkerzen 8, um danach durch das Innere der Filterkerzen 8 hindurch in den Sammelraum 11 und zum Auslaß 3 zu strömen. Hierbei setzt sich der in den Abgasen befindliche Ruß in den keramischen Wicklungen 9 und an der Außenseite als eine Schicht ab, die in der Zeichnung nicht dargestellt ist.The exhaust gases of the diesel engine pass through the inlet 2 into the annular space 4 and from there via the combustion chamber 4 a into the filter space 7 . They flow through the filter chamber 7 and penetrate the cylindrical walls 8 a of the filter candles 8 , in order to then flow through the interior of the filter candles 8 into the collecting chamber 11 and to the outlet 3 . Here, the soot present in the exhaust gases settles in the ceramic windings 9 and on the outside as a layer, which is not shown in the drawing.

In dem Ringraum 4 ist ein Leitblech 13 befestigt, das den Bereich 14 des Ringraums 4, in den die Abgase eintreten, von dem Bereich 15 des Ringkraums 4 trennt, in den die Abgase nach vollständigem Durchströmen des Ringraums gelangen. Hierbei ist das Leitblech 13 derart schräg zur auftreffenden Strömung gestellt, daß der Abgasstrom zum Filterraum 7 hingeführt wird.In the annular space 4, a guide plate 13 is fixed, which separates the region 14 of the annular space 4, into which the exhaust gases enter from the portion 15 of the Ringkraums 4, the exhaust gases reach the after completely passing through the annular space. Here, the baffle 13 is so inclined to the impinging flow that the exhaust gas flow is led to the filter chamber 7 .

Claims (3)

1. Rußfilter für Dieselmotoren mit einem Brenner (5), der die auf den Filterkerzen (8) abgesetzten Rußschichten abbrennt, wobei die Motorenabgase durch einen tangentialen Einlaß (2) in einen, den Brenner (5) umgebenden Ringraum (4) geführt werden, von dem sie über die Brennkammer (4a) in den Filterraum (7) gelangen, dadurch gekennzeichnet, daß der Bereich des Ringraums (4) in den die Abgase eintreten, von dem Bereich des Ringkraums in den die Abgase nach vollständigem Durchströmen des Ringraums gelangen, durch eine Wand (13) getrennt ist.1. soot filter for diesel engines with a burner ( 5 ) which burns off the soot layers deposited on the filter candles ( 8 ), the engine exhaust gases being passed through a tangential inlet ( 2 ) into an annular space ( 4 ) surrounding the burner ( 5 ), from which they reach the filter chamber ( 7 ) via the combustion chamber ( 4 a), characterized in that the area of the annular space ( 4 ) into which the exhaust gases enter, from the area of the annular space into which the exhaust gases pass after complete flow through the annular space , is separated by a wall ( 13 ). 2. Rußfilter nach Anspruch 1, dadurch gekennzeichnet, daß die Wand (13) ein Leitblech ist.2. Soot filter according to claim 1, characterized in that the wall ( 13 ) is a baffle. 3. Rußfilter nach Anspruch 2, dadurch gekennzeichnet, daß das Leitblech (13) derart schräg zur auftreffenden Strömung gestellt ist, daß der Abgasstrom zum Filterraum (7) hingeführt wird.3. soot filter according to claim 2, characterized in that the baffle ( 13 ) is placed obliquely to the impinging flow that the exhaust gas flow is led to the filter chamber ( 7 ).
DE4202960A 1992-02-01 1992-02-01 Soot filter with ring space Withdrawn DE4202960A1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
DE4202960A DE4202960A1 (en) 1992-02-01 1992-02-01 Soot filter with ring space
DE59206819T DE59206819D1 (en) 1992-02-01 1992-03-04 Soot filter with annulus
AT92103705T ATE140761T1 (en) 1992-02-01 1992-03-04 SOOT FILTER WITH ANNULAR SPACE
DE9219003U DE9219003U1 (en) 1992-02-01 1992-03-04 Baffle in the annulus
EP92103705A EP0554499B1 (en) 1992-02-01 1992-03-04 Soot filter with a ring chamber
JP4182256A JP2577849B2 (en) 1992-02-01 1992-07-09 Soot filter for diesel engine
BR929203675A BR9203675A (en) 1992-02-01 1992-09-22 ANTIFULIGINOUS FILTER
HU9203047A HUT66635A (en) 1992-02-01 1992-09-24 Soot filter with ring-shaped chamber
KR1019920018364A KR930018135A (en) 1992-02-01 1992-10-07 Soot filter with annular combustion chamber
SK3638-92A SK363892A3 (en) 1992-02-01 1992-12-11 Filter for blacks with ring space
CS923638A CZ363892A3 (en) 1992-02-01 1992-12-11 Carbon black collecting filter with a ring-shaped space
GR960402377T GR3021024T3 (en) 1992-02-01 1996-09-12 Soot filter with a ring chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4202960A DE4202960A1 (en) 1992-02-01 1992-02-01 Soot filter with ring space

Publications (1)

Publication Number Publication Date
DE4202960A1 true DE4202960A1 (en) 1993-08-05

Family

ID=6450818

Family Applications (3)

Application Number Title Priority Date Filing Date
DE4202960A Withdrawn DE4202960A1 (en) 1992-02-01 1992-02-01 Soot filter with ring space
DE59206819T Expired - Fee Related DE59206819D1 (en) 1992-02-01 1992-03-04 Soot filter with annulus
DE9219003U Expired - Lifetime DE9219003U1 (en) 1992-02-01 1992-03-04 Baffle in the annulus

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE59206819T Expired - Fee Related DE59206819D1 (en) 1992-02-01 1992-03-04 Soot filter with annulus
DE9219003U Expired - Lifetime DE9219003U1 (en) 1992-02-01 1992-03-04 Baffle in the annulus

Country Status (10)

Country Link
EP (1) EP0554499B1 (en)
JP (1) JP2577849B2 (en)
KR (1) KR930018135A (en)
AT (1) ATE140761T1 (en)
BR (1) BR9203675A (en)
CZ (1) CZ363892A3 (en)
DE (3) DE4202960A1 (en)
GR (1) GR3021024T3 (en)
HU (1) HUT66635A (en)
SK (1) SK363892A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2881793B1 (en) * 2005-02-04 2007-05-11 Melchior Jean F INTERNAL COMBUSTION ALTERNATIVE MOTOR AND METHOD FOR REMOVING BURNER GAS PARTICLES FOR SUCH AN ALTERNATIVE ENGINE
KR100925871B1 (en) * 2008-08-07 2009-11-06 에이치케이엠엔에스(주) Mixing Apparatus for Exhaust gas and Frame

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012411A1 (en) * 1990-04-19 1991-10-24 Webasto Ag Fahrzeugtechnik Exhaust-operated filter-regenerating burner - divides gas into equal evenly-distributed currents before combustion chamber inlet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49133720A (en) * 1973-05-03 1974-12-23
JPS599519B2 (en) * 1981-09-14 1984-03-02 東海カ−ボン株式会社 Manufacturing method for high-grade SIC whiskers
JPS59157521U (en) * 1983-03-28 1984-10-23 マツダ株式会社 Diesel engine exhaust purification device
US4651524A (en) * 1984-12-24 1987-03-24 Arvin Industries, Inc. Exhaust processor
DE3504122C2 (en) * 1985-02-07 1994-02-03 Kat Tec Ges Fuer Katalysatorte Catalyst for the conversion of hydrocarbons, nitrogen oxides and fuel gases
DE3729861C2 (en) * 1987-09-05 1995-06-22 Deutsche Forsch Luft Raumfahrt Method for operating a soot filter device for a diesel engine and soot filter device for carrying out this method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012411A1 (en) * 1990-04-19 1991-10-24 Webasto Ag Fahrzeugtechnik Exhaust-operated filter-regenerating burner - divides gas into equal evenly-distributed currents before combustion chamber inlet

Also Published As

Publication number Publication date
GR3021024T3 (en) 1996-12-31
BR9203675A (en) 1993-08-10
DE59206819D1 (en) 1996-08-29
EP0554499B1 (en) 1996-07-24
DE9219003U1 (en) 1997-01-16
HUT66635A (en) 1994-12-28
JPH05263619A (en) 1993-10-12
HU9203047D0 (en) 1992-12-28
KR930018135A (en) 1993-09-21
CZ363892A3 (en) 1993-08-11
EP0554499A1 (en) 1993-08-11
ATE140761T1 (en) 1996-08-15
JP2577849B2 (en) 1997-02-05
SK363892A3 (en) 1995-03-08

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