EP1451452B1 - Verfahren und anordnung zur regeneration von dieselpartikelfiltern - Google Patents
Verfahren und anordnung zur regeneration von dieselpartikelfiltern Download PDFInfo
- Publication number
- EP1451452B1 EP1451452B1 EP02776866A EP02776866A EP1451452B1 EP 1451452 B1 EP1451452 B1 EP 1451452B1 EP 02776866 A EP02776866 A EP 02776866A EP 02776866 A EP02776866 A EP 02776866A EP 1451452 B1 EP1451452 B1 EP 1451452B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- diesel particulate
- particulate filter
- exhaust
- exhaust gas
- recirculated
- 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
Links
- 238000000034 method Methods 0.000 title claims description 15
- 230000001172 regenerating effect Effects 0.000 title claims 3
- 239000002245 particle Substances 0.000 title description 9
- 239000007789 gas Substances 0.000 claims description 48
- 239000003570 air Substances 0.000 claims description 39
- 238000011069 regeneration method Methods 0.000 claims description 25
- 230000008929 regeneration Effects 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000012080 ambient air Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000007664 blowing Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 239000004071 soot Substances 0.000 description 10
- 239000000654 additive Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 150000001785 cerium compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
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
- F01N3/027—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 electric or magnetic heating means
-
- 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
- F01N3/031—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 having means for by-passing filters, e.g. when clogged or during cold engine start
-
- 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
-
- 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
- F01N3/32—Arrangements for supply of additional air using air pump
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/10—Residue burned
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/30—Exhaust treatment
Definitions
- the present invention relates to a method and a Arrangement for the regeneration of diesel particulate filters after the preamble of claim 1 and the preamble of claim 8.
- Particulate limit values of the Euro IV emission standard may be used of heavy vehicles only with diesel particulate filters (DPF). Cut DPF systems typically 90-95% of the emitted particles. The As a result, particles stored in the filter increase the level Exhaust back pressure, which is why the diesel particulate filter in Intervals between 200-500 km must be regenerated. The Regeneration takes place by burning (oxidation) of the embedded particles. For this, the particles must typically heated to about 600 ° C. Appropriately, the heating of the particles takes place via convective heat input through the exhaust gas flow. The Temperature of the exhaust stream consumption optimized However, diesel engines (TDI, CDI) only exceed a few Operating points 300 ° C.
- the exhaust gas must therefore during the regeneration be reheated. This can be electric or with Help a burner done. As the residual oxygen content of the exhaust gas varies between 3 and 18%, is the use a diesel burner in the direct exhaust flow without additional Fresh air blower problematic, because not everyone Time enough oxygen for the combustion of the fuel is available.
- the ignition temperature the particles by adding the diesel fuel with Iron or cerium compounds to lower to about 300 ° C. It should be noted, however, that such additives are inorganic Leave ashes in the particle filter, which too a continuous increase in the through the diesel particulate filter generated counterpressure, causing premature Replacement of the filter may be necessary.
- FIG. 1 Another possible partial flow system is shown in FIG. You can see two parallel connected Diesel Particulate Filter 1, 2.
- a flap 4 introduced by means of the exhaust gas in the supply line 3 optionally via a supply line 3a in the diesel particulate filter 1, or via a supply line 3b in the diesel particulate filter 2 is inserted.
- the Diesel particulate filters 1, 2 are each equipped with electric heaters 1a, 2a formed.
- About a fan 5 is fresh air into the supply lines 3a, 3b can be introduced. From the diesel particulate filters 1, 2 exiting exhaust gas is discharged via discharge lines 6a and 6b, which open into a conduit 6, dissipated.
- diesel particulate filters expediently individually undergone regeneration.
- the diesel particulate filter 1 by means of the flap mechanism 4 of the majority (For example, 90%) of the exhaust gas flow through the diesel particulate filter 2 headed.
- the remaining residual current becomes electric, or also fossil, heated and heated the diesel particulate filter. 1 and the diesel soot stored therein. If the residual oxygen content the exhaust stream is too low, can by the Blower 5 fresh air to be supplied.
- the maximum pressure build-up of the blower typically up to 150 hPa however, its use on relatively small overpressures in the exhaust tract.
- the size of the partial flow can be adjusted or be dimensioned that the diesel particulate filter 1 in short time with the maximum realizable electrical Heating power brought about the ignition temperature of the diesel soot becomes.
- the diesel particulate filter 2 can then be regenerated become. It is also possible between regeneration provide the individual diesel particulate filter phases, in which both diesel particulate filter according to a Normal operation are applied uniformly with exhaust gas.
- the aim of the invention is a regeneration of diesel particulate filters in a simple and inexpensive way perform. This goal is achieved through a process with the features of claim 1 and an arrangement with the features of claim 7.
- the regeneration in at least one partially closed, hereinafter referred to as circulating air circulation perform designated circulation circuit, allows regeneration essentially independent of the size of the exhaust stream, the residual oxygen content and the pressure level. Characterized in that the exhaust gas by means of the circulating air circulation several times through the diesel particulate filter is carried out, the heating time is greatly shortened, thereby Energy can be saved.
- Method is a detection of the as part of the regeneration of the least produced a diesel particulate filter Rußabbrandes about a difference oxygen measurement at the Inlet or outlet side of the diesel particulate filter.
- This measuring method proves to be very reliable in practice.
- inventive arrangement are as appropriate means, for example, in front and behind The diesel particulate filter positionable oxygen sensors intended.
- Method or the inventive arrangement is acting on a two parallel diesel particulate filter Exhaust flow diverted so that a first Diesel particulate filter substantially with the complete Exhaust gas flow is applied and simultaneously with respect to the second diesel particulate filter a closed air circulation is produced.
- a substantially complete exhaust gas stream in particular shares between 80 and 100% of the total exhaust gas flow.
- the flap 27 can guarantee, in a first position, that the Discharge lines 26a, 26b in a common discharge line 26 lead. In a second position, the flap 27 adjustable so that the lines 26a or 26b flowing gas (exhaust gas) via a line 30 a Flap 28, in a line 32, a fan 25 and the Flap 24 back into the respective diesel particulate filter 21, 22 can be performed.
- the first phase of an example is shown by way of example Regeneration of the lower diesel particulate filter 22 shown.
- the flaps 24 and 27 are set that the entire incoming via the supply line 23 Exhaust gas flow to the upper diesel particulate filter 21, and of this is passed into the discharge line 6. This stream is illustrated by the dashed arrows.
- the fan 25 must be only a relative promote small mass flow, namely the mass flow, the at the time of the mentioned setting of the flaps 24, 27th and 28 within the diesel particulate filter 22 and the closed conduit system (lines 23b, 26b, 30, 32nd and 31).
- the maximum to be promoted mass flow here at about 20 kg / h, whereby the pressure drop over the filled with soot Diesel particulate filter 22 is relatively small, typically maximum 50 hPa.
- the electric heater 22a which expediently as electric heating coil is formed, heats the Diesel particulate filter 22 via radiation injection as well convective via the circulating air flow. There is no air at first exits the system, the heating takes place, as mentioned, very fast.
- the diesel particulate filter 22 becomes in this mode of operation continue until reaching the ignition temperature of the warmed up soot.
- the "Durchzünden" of the Diesel soot can be measured by measuring the oxygen consumption due to oxidation within the diesel particulate filter 22 are performed. For this it turns out to be expedient, input side and output side of the Diesel particulate filter 22 lambda sensors 40, 41 provided. It is also possible via appropriate input and output pressure measurements the pressure drop within of the diesel particulate filter. The finding of "Durchzündens" of the diesel soot is finally with a Output-side temperature measurement possible.
- the temperature of the diesel particulate filter 22 can by Control of the heating power of the electric heater 22a or the delivery volume of the blower 25 controlled become. Furthermore, over the controlled Frischluftzu thanks (by controlling the flap 28) of the Oxygen content of the circulating air and thus the speed the Rußabbrandes be controlled. With these measures can effectively overheat and damage the Diesel particulate filter 22 by the burning of the Diesel soot released combustion enthalpy prevented become.
- the regeneration of the diesel particulate filter takes place in at least partially closed recirculation independently from the height of the exhaust stream and from Residual oxygen content and pressure level of the exhaust gas stream.
- One used blower only has the back pressure or the Overcome pressure drop of a diesel particulate filter.
- the heating time for a diesel particulate filter can be strong be shortened, whereby energy is saved. By the small mass flow in the circulating air circuit as well as the limited Frischluftzutul can despite low electrical Heating power high temperatures in the diesel particulate filter be achieved. This allows the diesel particulate filter also without additive of the diesel fuel be regenerated.
Description
Claims (10)
- Verfahren zur Regeneration wenigstens eines Dieselpartikelfilters (21; 22), bei welchem Abgas über eine Zuleitung (23, 23a, 23b) in den wenigstens einen Dieselpartikelfilter (21; 22) eingebracht, und über eine Abführleitung (26, 26a, 26b) aus diesem abgeführt wird, wobei eine Erwärmung des den wenigstens einen Dieselpartikelfilter (21; 22) durchströmenden Abgases erfolgt, gekennzeichnet durch die Schaffung eines schließbaren Umluftkreislaufes, über den aus dem wenigstens einen Dieselpartikelfilter (21; 22) austretendes Abgas erneut in diesen einbringbar ist, wobei dem Umluftkreislauf Umgebungsluft hinzugefügt werden kann.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in dem Umluftkreislauf zirkulierende Umluft geregelt bzw. gesteuert aus diesem ausblasbar ist.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Menge zugeführter Frischluft der Menge ausgeblasener Umluft entspricht.
- Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass ein im Rahmen der Regeneration des wenigstens einen Dieselpartikelfilters (21; 22) erzeugter Russabbrand über eine Differenzsauerstoffmessung an der Eintritts- und Austrittsseite des wenigstens einen Dieselpartikelfilters (21; 22) durchgeführt wird.
- Verfahren nach einem der vorstehenden Ansprüche, gekennzeichnet durch wenigstens zwei parallel geschaltete Dieselpartikelfilter (21; 22), wobei ein beide Dieselpartikelfilter beaufschlagender Abgasstrom wahlweise derart umgeleitet wird, dass der im wesentlichen vollständige Abgasstrom über den ersten Dieselpartikelfilter (21) geleitet wird, und bezüglich des zweiten Dieselpartikelfilters (22) ein geschlossener Umluftkreislauf bereitgestellt wird.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass die Umleitung der Abgasströme durch in die Zuleitung bzw. Ableitung des Abgasstromes eingebrachte Klappen (24, 27) bewerkstelligt wird.
- Anordnung zur Regeneration wenigstens eines Dieselpartikelfilters (21; 22), welcher mit einer Zuleitung (23, 23a; 23, 23b) zur Zufuhr von Abgas, und einer Abführleitung (26a, 26; 26, 26b, 26) zum Abführen von Abgas in Verbindung steht, wobei Mittel (21a; 21b) zur Erwärmung des wenigstens einen Dieselpartikelfilters durchströmenden Abgases vorgesehen sind, gekennzeichnet durch Mittel (24, 23a, 26a, 27, 30, 28, 32, 25, 31; 24, 23b, 26b, 27, 30, 28, 32, 25, 31) zur Schaffung eines schließbaren Umluftkreislaufes, über den aus dem wenigstens einen Dieselpartikelfilter (21; 22) austretendes Abgas erneut in diesen einbringbar ist, wobei Mittel (28, 29) zur Hinzufügung von Umgebungsluft in den Umluftkreislauf vorgesehen sind.
- Anordnung nach Anspruch 7, gekennzeichnet durch Mittel (27) zum geregelten bzw. gesteuerten Ausblasen von Abgas aus dem Umluftkreislauf.
- Anordnung nach einem der Ansprüche 7 oder 8, gekennzeichnet durch Mittel (40, 41) zur Differenzsauerstoffmessung an der Eintritts- und Austrittsseite des wenigstens einen Dieselpartikelfilters (21; 22).
- Anordnung nach einem der Ansprüche 7 bis 9, bei welcher zwei parallel geschaltete Dieselpartikelfilter (21, 22) derart mit einem Abgasstrom beaufschlagbar sind, dass der im wesentlichen vollständige Abgasstrom über einen ersten Dieselpartikelfilter leitbar ist, und bezüglich des zweiten Dieselpartikelfilters ein geschlossener Umluftkreislauf bereitstellbar ist, wobei als Mittel zur entsprechenden Umleitung der Abgasströme in die Zuleitung bzw. Abführleitung einbringbare Klappen (24, 27) vorgesehen sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10158569A DE10158569A1 (de) | 2001-11-29 | 2001-11-29 | Verfahren und Anordnung zur Regeneration von Dieselpartikelfiltern |
DE10158569 | 2001-11-29 | ||
PCT/DE2002/004102 WO2003048535A1 (de) | 2001-11-29 | 2002-11-06 | Verfahren und anordnung zur regeneration von dieselpartikelfiltern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1451452A1 EP1451452A1 (de) | 2004-09-01 |
EP1451452B1 true EP1451452B1 (de) | 2005-06-29 |
Family
ID=7707374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02776866A Expired - Lifetime EP1451452B1 (de) | 2001-11-29 | 2002-11-06 | Verfahren und anordnung zur regeneration von dieselpartikelfiltern |
Country Status (5)
Country | Link |
---|---|
US (1) | US7160355B2 (de) |
EP (1) | EP1451452B1 (de) |
JP (1) | JP2005511944A (de) |
DE (2) | DE10158569A1 (de) |
WO (1) | WO2003048535A1 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10350485A1 (de) | 2003-10-29 | 2005-06-02 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine |
FR2862547B1 (fr) * | 2003-11-25 | 2006-12-01 | Renault Sas | Dispositif pour le traitement thermique d'un filtre a particules ou d'un piege a oxydes d'azote |
US7410529B2 (en) | 2004-10-05 | 2008-08-12 | Caterpillar Inc. | Filter service system and method |
US20060070360A1 (en) * | 2004-10-05 | 2006-04-06 | Caterpillar Inc. | Filter service system and method |
US7419532B2 (en) * | 2004-10-05 | 2008-09-02 | Caterpillar Inc. | Deposition system and method |
US7384455B2 (en) * | 2004-10-05 | 2008-06-10 | Caterpillar Inc. | Filter service system and method |
US7462222B2 (en) * | 2004-10-05 | 2008-12-09 | Caterpillar Inc. | Filter service system |
US7390338B2 (en) * | 2005-01-25 | 2008-06-24 | Pollution Control Products Co. | Method and apparatus for regenerating engine exhaust filters |
US7410521B2 (en) * | 2005-02-28 | 2008-08-12 | Caterpillar Inc. | Filter service system and method |
US20060191412A1 (en) * | 2005-02-28 | 2006-08-31 | Caterpillar Inc. | Filter service system and method |
US8157897B2 (en) * | 2007-06-29 | 2012-04-17 | Caterpillar Inc. | Filter purge system utilizing impact wave generating device and vacuum source |
US8142552B2 (en) * | 2007-06-29 | 2012-03-27 | Caterpillar Inc. | Filter purge system utilizing a reactive propellant |
US9032710B2 (en) * | 2007-08-20 | 2015-05-19 | Parker-Hannifin Corporation | Diesel dosing system for active diesel particulate filter regeneration |
US8635865B2 (en) * | 2007-09-18 | 2014-01-28 | Thermo King Corporation | Diesel particulate filter including a heat exchanger |
US8444729B2 (en) * | 2007-11-26 | 2013-05-21 | Caterpillar Inc. | Electrically regenerated exhaust particulate filter having non-axial regeneration flame propagation |
WO2012015505A1 (en) * | 2010-07-26 | 2012-02-02 | International Engine Intellectual Property Company, Llc | Aftertreatment burner air supply system |
DE102010037650B4 (de) * | 2010-09-20 | 2016-02-11 | Denso Corporation | O2-Regelungssystem für einen Verbrennungsmotor und Verfahren zur Regelung der O2-Konzentration |
US9273649B2 (en) | 2014-05-30 | 2016-03-01 | Cnh Industrial America Llc | System and method for controlling an electric aspirator of an air intake system for a work vehicle |
FI20145653A (fi) * | 2014-07-07 | 2016-01-08 | Valmet Technologies Oy | Järjestely ja menetelmä |
US10392123B2 (en) | 2016-04-20 | 2019-08-27 | Carleton Life Support Systems, Inc. | On-board inert gas generating air separation module recovery apparatus and method |
CN105885957B (zh) * | 2016-05-24 | 2020-03-31 | 河南龙成煤高效技术应用有限公司 | 一种高温脱尘过滤设备、高温脱尘过滤系统及连续脱尘过滤的方法 |
CN111852619B (zh) * | 2020-07-17 | 2023-11-07 | 浙江天地环保科技股份有限公司 | 一种船舶尾气颗粒物捕集装置节能再生系统及方法 |
Family Cites Families (11)
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---|---|---|---|---|
US4217757A (en) * | 1978-10-10 | 1980-08-19 | Texaco Inc. | Exhaust gas recycling system |
US4558565A (en) * | 1982-03-16 | 1985-12-17 | Nippon Soken, Inc. | Exhaust gas cleaning device for internal combustion engine |
US4671059A (en) * | 1986-06-30 | 1987-06-09 | Ontario Research Foundation | Diesel particulate traps |
DE3722970A1 (de) * | 1986-08-06 | 1988-02-11 | Volkswagen Ag | Verfahren und einrichtung zum reinigen eines partikelfilters, insbesondere eines russfilters |
DE3717140A1 (de) | 1987-05-21 | 1988-12-08 | Webasto Ag Fahrzeugtechnik | Russfilteranlage im abgastrakt einer diesel-brennkraftmaschine |
US4867768A (en) * | 1987-08-21 | 1989-09-19 | Donaldson Company, Inc. | Muffler apparatus with filter trap and method of use |
JPH01159029A (ja) * | 1987-12-16 | 1989-06-22 | Toyota Motor Corp | ディーゼルエンジンの排気浄化装置 |
DE3832790C2 (de) * | 1988-09-27 | 1997-12-11 | Pattas Konstantin N | Verfahren und Einrichtung zum Regenerieren eines Rußfilters |
US5194078A (en) * | 1990-02-23 | 1993-03-16 | Matsushita Electric Industrial Co., Ltd. | Exhaust filter element and exhaust gas-treating apparatus |
DE19807203A1 (de) * | 1998-02-20 | 1999-08-26 | Volkswagen Ag | Stickoxidbehandlung bei einem Mager-Otto-Motor |
US6675572B2 (en) * | 2000-09-14 | 2004-01-13 | Siemens Automotive Inc. | Valve including a recirculation chamber |
-
2001
- 2001-11-29 DE DE10158569A patent/DE10158569A1/de not_active Ceased
-
2002
- 2002-11-06 DE DE50203531T patent/DE50203531D1/de not_active Expired - Lifetime
- 2002-11-06 EP EP02776866A patent/EP1451452B1/de not_active Expired - Lifetime
- 2002-11-06 JP JP2003549701A patent/JP2005511944A/ja active Pending
- 2002-11-06 WO PCT/DE2002/004102 patent/WO2003048535A1/de active IP Right Grant
- 2002-11-06 US US10/470,114 patent/US7160355B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2003048535A1 (de) | 2003-06-12 |
JP2005511944A (ja) | 2005-04-28 |
DE10158569A1 (de) | 2003-06-12 |
US20040112218A1 (en) | 2004-06-17 |
DE50203531D1 (de) | 2005-08-04 |
US7160355B2 (en) | 2007-01-09 |
EP1451452A1 (de) | 2004-09-01 |
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