EP0554499B1 - Russfilter mit Ringraum - Google Patents

Russfilter mit Ringraum Download PDF

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Publication number
EP0554499B1
EP0554499B1 EP92103705A EP92103705A EP0554499B1 EP 0554499 B1 EP0554499 B1 EP 0554499B1 EP 92103705 A EP92103705 A EP 92103705A EP 92103705 A EP92103705 A EP 92103705A EP 0554499 B1 EP0554499 B1 EP 0554499B1
Authority
EP
European Patent Office
Prior art keywords
annular space
filter
burner
exhaust gases
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.)
Expired - Lifetime
Application number
EP92103705A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0554499A1 (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 DE9219003U priority Critical patent/DE9219003U1/de
Publication of EP0554499A1 publication Critical patent/EP0554499A1/de
Application granted granted Critical
Publication of EP0554499B1 publication Critical patent/EP0554499B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a soot filter for diesel engines with a burner and a combustion chamber, which burns off the soot layers deposited on the filter candles, the engine exhaust gases being passed through a tangential inlet into an annular space surrounding the burner, from which they reach the filter chamber via the combustion chamber , wherein a cylindrical perforated wall is arranged between the annular space and the combustion chamber, through which the exhaust gases pass radially into the combustion chamber and a partition extends to the cylindrical perforated wall of the combustion chamber, which separates the annular space from an expansion chamber or the filter space.
  • soot filter In a soot filter, it is known to introduce the exhaust gas of the diesel engine through a tangential inlet into an annular space which surrounds the burner and from which the exhaust gases flow to the filter space.
  • the exhaust gases circulating in the annular space disturb the gases entering through the inlet, so that considerable turbulence is created which increases the overall flow resistance of the soot filter.
  • a soot filter device for diesel engines is known from EP 0 306 743, which has a cylindrical housing that has a radial or tangential inlet for the engine exhaust gases at one end.
  • the exhaust gas inlet leads into an annular distribution chamber which surrounds the main burner chamber of the burner.
  • the engine exhaust gases pass through the inlet into the annular space surrounding the burner, from which they pass through the combustion chamber into the filter space, the area of the annular space into which the exhaust gases enter from the area of the annular space into which the exhaust gases flow after complete flow through the Annulus, is separated by a wall.
  • a catalyst for the conversion of hydrocarbons and for the reduction of nitrogen oxides which has an annular inflow housing into which the exhaust gases are led through a tangential inlet, whereby a radial partition wall in the annular space in the area of the inlet connection piece is sprinkled in this way is that the circulating exhaust gases are stopped after a complete flow through the annular space on the partition and can no longer flow through the area of the inlet port.
  • a disadvantage of the devices or catalysts described above is that the flow resistance is relatively high and, due to the construction, the sound generated by the burner disproportionately escapes through the inlets and causes disturbing noises.
  • This object is achieved in that the area of the annular space into which the exhaust gases enter are separated from the area of the annular space into which the exhaust gases pass after the annular space has completely flowed through by a baffle arranged in the annular space.
  • a baffle ensures that the exhaust gas stream entering the annular space through the inlet is not exposed to any additional turbulence and can therefore flow through the annular space relatively undisturbed, in order then to leave the annular space at the baffle at the latest and to reach the filter space. This results in a uniform flow in front of, in and behind the annular space, so that the overall flow resistance of the soot filter is significantly reduced.
  • Such a low flow resistance of the overall system leads to the considerable advantage that correspondingly more soot can be deposited, since a thicker layer of soot can be present before the pressure is no longer sufficient to flow through the soot filter. This means that it can burn off at longer intervals and the service life of the soot filter is longer.
  • the soot filter has optimal sound absorbing properties. on the one hand this is due to the fact that the annular space forms a large, uniform calming space which, together with the expansion chamber which follows thereafter, achieves high sound absorption values.
  • 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 cylindrical perforated wall 5b of the combustion chamber 5a is coaxially surrounded by a cylindrical second perforated wall 5c and the annular space 5d is open between two perforated walls towards the expansion chamber 4a.
  • the flame gases emerging from the burner 5 are deflected by a conical guide plate 6, which is located in an expansion chamber 4a. From there, the gases are led into the filter chamber 7, in which a larger number of filter candles 8 extend parallel to one another and axially parallel to the housing 1.
  • 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 to which Outlet 3 leads.
  • the exhaust gases of the diesel engine pass through the inlet 2 into the annular space 4 and from there via the combustion chamber 5a into the filter space 7. They flow through the filter space 7 and penetrate the cylindrical walls 8a of the filter candles 8 and then through the interior of the filter candles 8 to flow the collecting space 11 and to the outlet 3.
  • 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.
  • a guide plate 13 is attached tangentially to the cylindrical perforated wall of the combustion chamber 5a.
  • the baffle 13 separates the area 14 of the annular space 4, into which the exhaust gases enter, from the area 15 of the annular space 4, into which the exhaust gases pass after the annular space has completely flowed through.
  • the baffle 13 is so inclined to the impinging flow that the exhaust gas flow is led to the filter chamber 7 or to the expansion chamber 4a.

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)
  • Saccharide Compounds (AREA)
  • Filtering Materials (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
EP92103705A 1992-02-01 1992-03-04 Russfilter mit Ringraum Expired - Lifetime EP0554499B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9219003U DE9219003U1 (de) 1992-02-01 1992-03-04 Leitblech im Ringraum

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4202960 1992-02-01
DE4202960A DE4202960A1 (de) 1992-02-01 1992-02-01 Russfilter mit ringraum

Publications (2)

Publication Number Publication Date
EP0554499A1 EP0554499A1 (de) 1993-08-11
EP0554499B1 true EP0554499B1 (de) 1996-07-24

Family

ID=6450818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92103705A Expired - Lifetime EP0554499B1 (de) 1992-02-01 1992-03-04 Russfilter mit Ringraum

Country Status (10)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2881793B1 (fr) * 2005-02-04 2007-05-11 Melchior Jean F Moteur alternatif a combustion interne et procede d'elimination des particules des gaz brules pour un tel moteur alternatif
KR100925871B1 (ko) * 2008-08-07 2009-11-06 에이치케이엠엔에스(주) Ｄｐｆ 시스템용 배기가스 및 화염 혼합장치

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986004525A1 (en) * 1985-02-07 1986-08-14 Christian Koch Catalyst for the transformation of hydrocarbons and the reduction of nitrogen oxides, method for producing said catalyst and utilization of the catalyst for the catalysis of exhaust gases from diesel engines

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49133720A (pt) * 1973-05-03 1974-12-23
JPS599519B2 (ja) * 1981-09-14 1984-03-02 東海カ−ボン株式会社 高品位ｓｉｃホイスカ−の製造方法
JPS59157521U (ja) * 1983-03-28 1984-10-23 マツダ株式会社 ディ−ゼルエンジンの排気浄化装置
US4651524A (en) * 1984-12-24 1987-03-24 Arvin Industries, Inc. Exhaust processor
DE3729861C2 (de) * 1987-09-05 1995-06-22 Deutsche Forsch Luft Raumfahrt Verfahren zum Betreiben einer Rußfiltervorrichtung für einen Dieselmotor und Rußfiltervorrichtung zur Durchführung dieses Verfahrens
DE4012411A1 (de) * 1990-04-19 1991-10-24 Webasto Ag Fahrzeugtechnik Mit abgas einer brennkraftmaschine betreibbarer brenner zur regenerierung einer partikelfiltereinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986004525A1 (en) * 1985-02-07 1986-08-14 Christian Koch Catalyst for the transformation of hydrocarbons and the reduction of nitrogen oxides, method for producing said catalyst and utilization of the catalyst for the catalysis of exhaust gases from diesel engines

Also Published As

Publication number Publication date
DE4202960A1 (de) 1993-08-05
JP2577849B2 (ja) 1997-02-05
DE9219003U1 (de) 1997-01-16
SK363892A3 (en) 1995-03-08
KR930018135A (ko) 1993-09-21
HU9203047D0 (en) 1992-12-28
BR9203675A (pt) 1993-08-10
ATE140761T1 (de) 1996-08-15
DE59206819D1 (de) 1996-08-29
HUT66635A (en) 1994-12-28
GR3021024T3 (en) 1996-12-31
JPH05263619A (ja) 1993-10-12
CZ363892A3 (en) 1993-08-11
EP0554499A1 (de) 1993-08-11

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