EP0286932A2 - Dispositif de filtrage des particules de suie de l'échappement d'un moteur à combustion - Google Patents

Dispositif de filtrage des particules de suie de l'échappement d'un moteur à combustion Download PDF

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Publication number
EP0286932A2
EP0286932A2 EP88105338A EP88105338A EP0286932A2 EP 0286932 A2 EP0286932 A2 EP 0286932A2 EP 88105338 A EP88105338 A EP 88105338A EP 88105338 A EP88105338 A EP 88105338A EP 0286932 A2 EP0286932 A2 EP 0286932A2
Authority
EP
European Patent Office
Prior art keywords
filter
heating elements
resistance heating
grooves
arrangement according
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.)
Granted
Application number
EP88105338A
Other languages
German (de)
English (en)
Other versions
EP0286932A3 (en
EP0286932B1 (fr
Inventor
Gerhard Dr.-Ing. Lepperhoff
Georg Dipl.-Ing. Hüthwohl
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.)
FEV Europe GmbH
Original Assignee
FEV Motorentechnik GmbH and Co KG
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 FEV Motorentechnik GmbH and Co KG filed Critical FEV Motorentechnik GmbH and Co KG
Priority to AT88105338T priority Critical patent/ATE77441T1/de
Publication of EP0286932A2 publication Critical patent/EP0286932A2/fr
Publication of EP0286932A3 publication Critical patent/EP0286932A3/de
Application granted granted Critical
Publication of EP0286932B1 publication Critical patent/EP0286932B1/fr
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
    • 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
    • F01N3/022—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222—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 characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/06—Ceramic, e.g. monoliths
    • 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 filter arrangement for removing soot particles from exhaust gases of an internal combustion engine, in particular a diesel engine, with at least one filter body formed from a porous filter material by filter channels arranged in a honeycomb arrangement, electrical resistance heating elements being arranged in the region of the inlet openings of the filter channels open on the gas inlet side Supply line and a discharge line are connected to a power supply.
  • Exhaust gas aftertreatment systems are known for reducing particle emissions, particularly in diesel engines. These usually consist of filter systems that retain and collect the particles present in the exhaust gas. The soot particles retained in the filter lead to an increase in the flow resistance in the exhaust system, so that the exhaust gas back pressure of the engine increases. This leads to an increase in fuel consumption and, in extreme cases, to engine shutdown. It is therefore necessary to remove the particles that have accumulated in the filter, for example by oxidation at high temperatures.
  • honeycomb filters made of a porous ceramic material have proven to be useful as filter bodies for the retention of the soot particles. These honeycomb filters are formed by a large number of parallel filter channels, which are alternately closed on the gas inlet side and gas outlet side, so that the exhaust gases flow through the porous filter walls and the soot particles separate on the walls of the filter channels. The filter can be regenerated by burning off the collected particles.
  • the temperatures required to ignite the soot particles in the exhaust gas are often not reached frequently enough by diesel engines, so that regeneration is not ensured. Forced regeneration can be achieved by adding additional energy.
  • a particularly energy-efficient regeneration can be achieved if the soot layer deposited on the filter body is ignited point by point in the inlet area of the filter channels by a brief supply of energy. The release of energy during the soot combustion that then begins leads to self-supporting soot combustion in the filter body.
  • the soot layer can be ignited by loop-shaped resistance wires inserted into the opening of the filter channels.
  • a loop of the heating conductor must be inserted into as many filter channels of the honeycomb filter as possible for the regeneration to be as complete as possible.
  • the number of filter channels that can be provided with loops of a heating conductor is limited by the electrical resistance of the heating conductor.
  • the heating conductor length is approximately 15 to 25 cm, from which 10 to 15 loops can be bent.
  • Ceramic honeycomb filters have around 1000 channels that need to be heated. A large number of individual heating wires bent into loops must therefore be used and connected in parallel for the filter to be heated as completely as possible.
  • a high heating output is required, which cannot be applied by the vehicle's electrical system. The heating power can therefore only be applied by sequential regeneration of individual sections of the filter. This is e.g. known from US-PS 4,427,418.
  • the loop-shaped heating conductors In order to be able to carry out sequential regeneration, the loop-shaped heating conductors have to be connected to small groups.
  • the individual groups are electrically isolated from each other and connected to the vehicle's supply voltage so that they can be switched on independently of each other.
  • the distance between the individual connections, which must be electrically insulated from one another, is very narrow due to the small channel cross sections of approx. A mutual touch of the individual connections would lead to a short circuit during operation of the vehicle or to simultaneous switching on of several areas with high power consumption for the vehicle electrical system.
  • individual loops can also be bridged. As a result, the electrical resistance of the heating conductor drops, causing the heating conductor temperature to rise and the wire to burn out.
  • the invention has for its object to provide a regeneration arrangement for diesel particulate filter of the type mentioned, in which a secure fixation of the heating loops in the honeycomb body is guaranteed and short circuits are avoided.
  • the grooves in the end face of the filter body are alternately formed in opposite directions, so that the resistance heating elements can be hooked in for fixing. Also, at least some of the grooves in the filter channels can be closed upwards after the resistance heating elements have been inserted, and it can be advantageous for the resistance heating elements to be covered with a material before the grooves are closed, which material burns or evaporates when the resistance heating elements are heated, so that there is no non-positive connection between the resistance heating elements and the filter.
  • a gas-permeable cover plate is arranged in the flow direction of the exhaust gases in front of the resistance heating elements.
  • the cover plate is preferably made of a material with low thermal conductivity and it can be formed by a lattice structure which forms flow channels, but it can also consist of open-pore ceramic foam.
  • the resistance heating elements and / or their connections can be accommodated in grooves in the filter body made of porous filter material, but they can also be accommodated in grooves in the cover plate or at the same time arranged in grooves in both the filter body and the cover plate.
  • the resistance heating elements and / or their connections are guided over the end plugs of filter outlet channels, and the resistance heating elements and / or their connections can be arranged in a meandering shape on the input side of the filter body, whereby they can have a rectangular cross-section.
  • a filter arrangement with the end face on the filter body arranged heating elements, in particular with heating elements arranged in individual heating zones, is provided in an advantageous embodiment of the invention that the free ends of the heating conductor are each connected via a connecting element to a supply line or discharge line which is guided at a distance from the end face.
  • a stable heating element is formed from each of a plurality of heating wires running parallel to one another with the inlets and outlets running transversely to the end region in each case, which enables reliable positioning of the heating wires, even if the filter arrangement, such as in a motor vehicle, is exposed to vibrations.
  • connection element consists in each case of a pipe made of electrically conductive material parallel to the direction of flow against the end face of the filter body, one end of which is fixedly connected to the supply line or discharge line and the other end of which is firmly connected to the free heating wire end.
  • connection between the connection piece and the pipe guided against the filter end face can be made in a simple embodiment by pressing in the heating conductor.
  • the loops between the rigid connection pieces are additionally fixed at least at certain intervals.
  • there is a firm connection e.g. would arise when gluing the heat conductor with ceramic glue, not possible.
  • the heating conductor should also not be clamped firmly, as this could lead to material abrasion of the heating conductor in the long term due to the vibrations.
  • a firm connection between the heating conductor and filter material leads to poorer heat transfer at this point, which would cause the wire to overheat locally.
  • the heating conductors on the filter end face are led at least in part through openings which are closed at the top. These openings are designed so that the heating conductor can move with a certain amount of play in it, so that mechanical stress due to the action of force is largely avoided.
  • the heat transfer to the environment is not limited by the insulating effect of the ceramic, so that the heating conductor temperature in the opening does not rise.
  • the openings can be formed by grooves made in the filter face in the running direction or perpendicular to the running direction of the heating loops, in which grooves the heating conductors are inserted.
  • the grooves are largely closed at the top in terms of production. A possible lateral migration is countered by the frequently oblique groove prevented in the further course.
  • the groove is inserted vertically, it can be closed at the top after inserting the heating conductor. This can be done by the gas-permeable cover arranged on the filter face. The cover is drilled in the area of the connection ends of the heating conductors. It is therefore also possible to close only part of the groove length in the case of grooves in the direction of the heating conductor or part of the groove in the case of grooves transverse to the direction of the heating conductor approximately in the middle between the connection ends at the top.
  • the same configuration of the openings can also be produced by correspondingly arranged grooves in the cover plate or in the webs when the filter face is not machined.
  • the resistance heating element essentially consists of a loop-shaped heating wire 1, the loops of which are inserted into the inlet openings of filter channels 2 of a filter body 3 designed as a honeycomb filter. It is also possible to design the heating wire in such a way that only the loops arranged in the channel consist of heating conductor material, while the connections between the individual heating conductors consist of material of lower electrical resistance.
  • the exhaust gas flow flows through the filter channels 2 in the direction of arrow 18.
  • the loops of the heating wire 1 are inserted diagonally into the filter channels 2 having a square cross-section, so that a piece of heating wire, as also shown in FIG. 2, covers several filter channels 2 lying next to one another. To fix the heating wire 1 in the individual filter channels 2, it is bent so that it lies against the wall 4 of the filter channel 2 in question.
  • the ends 5 and 6 of the heating wire 1 are led out of the inlet opening of the respective filter channel and are connected above the end face 7 of the filter body 3 via connecting pieces 8, 9 to a feed line 17 or a corresponding discharge line (not shown here).
  • the connectors 8, 9 are designed so that they fix the heating wire ends 5 and 6 in the filter channels.
  • connecting lines 10 and 11 are made of a dimensionally stable, electrically conductive material, for example a thin-walled tube.
  • the feed line 17 and correspondingly also the associated discharge line are then passed through the wall of the filter housing 12, in which the filter body 3 is fixed by means of a packing mat 13.
  • an insulation 14 made of ceramic material is used.
  • connecting pieces 8, 9 forming lines are thin-walled Pieces of pipe are into which the free ends 5 and 6 of the heating wire are inserted and connected to them, it is also ensured that contact with the adjacent connection 15 of a resistance heating element 16 forming another heating zone is avoided.
  • the length of the heating wire can not be chosen arbitrarily, but is determined by the specific resistance of the material, the cross section and by the surface power required to achieve the ignition temperature and by the electrical energy available.
  • the number of filter channels 2 covered by a heating wire element is constant, so that, as shown in FIG. 2, the entire end face of the filter body is divided into several separate heating zones in view of the electrical power available.
  • FIG. 2 shows the end face 20 of a ceramic honeycomb filter body with inlet channels 22 and the filter plug 23 closing off the filter outlet channels to the inlet side.
  • a heating wire 25 with its loops each covers nine inlet channels 22. Eight to ten heating wires 25 are in each case interconnected via power connection 28 and ground connections 27 to form a heating zone 26. The mass 27 is common to all heating zones 26, while the power supply for each heating zone 26 can be switched on individually (not shown).
  • the individual resistance heating elements are designed such that the end face of the filter body 3 is divided into triangular and quadrangular, preferably rectangular, heating zones. Since the individual heating zones adjoin one another, all inlet channels 22 are connected to a heating element.
  • the heating zones 26, each with eight to ten heating wires 25, cover almost all filter channels in the embodiment shown, so that the filter can be regenerated by sequential power supply to the individual heating zones.
  • the resistance heating wires 1 are arranged in grooves 51, which are formed perpendicular to the running direction of the heating wires 1 in the end face of the filter.
  • the grooves 51 are so wide that the walls of the filter channels 2 are cut and the heating wires 1 can be inserted into the filter, as can be seen from FIG. 4.
  • the advantage of guiding the grooves 51 perpendicular to the running direction of the heating wires 1 is that the mechanical processing of the filter end face takes place predominantly in the area of the filter plug.
  • the grooves 51 are worked into the filter end face so deep that the heating wires 1 do not protrude beyond the end face.
  • a cover 52 made of a heat-resistant, gas-permeable, electrically non-conductive material, e.g. ceramic foam, attached to the filter face.
  • the cover 52 need not cover the entire filter face. It is sufficient if the heating wires 1 are additionally held in some places in the filter material in order to avoid migration.
  • the grooves 53 made in the filter face perpendicular to the running direction of the heating wires, as shown in FIGS. 5 and 6, can also be closed at the top with electrically conductive rails 54, to which the individual heating loops 1 are attached.
  • a low electrical resistance in the area of the transitions between the heating loops is particularly advantageous, as a result of which the heat generated is particularly low here.
  • the heating conductors are held in the filter material by the rails fixed in the ceramic material.
  • the rails 54 do not need to cover the entire filter face. It is sufficient if the heating conductors 1 are additionally held in some places in the filter material with some rails in order to avoid migration.
  • a corresponding mounting of the heating conductors 1 on the filter end face is achieved if grooves 55, as shown in FIG. ceramic foam.
  • the main advantage of this embodiment lies in the easier production of the grooves 55, in particular when the cover 56 is produced by a casting process. The grooves 55 can then already be taken into account when casting the cover 56, so that subsequent processing is not necessary.
  • the filter body 3 is provided on the end face 20 with grooves 47, 48 arranged alternately in opposite directions, which are expediently incorporated into the stopper 31 closing the outlet channels.
  • FIG. 8 shows a first longitudinal section
  • FIG. 9 is a second longitudinal section that is laterally displaced in the filter end face compared to FIG. 8.
  • the advantage of this measure is that the resistance heating wire 1 is housed in alternately inclined grooves 47 and 48, so that it is, as it were, "hooked" and requires no further fixation.
  • FIG. 10 shows a further embodiment and arrangement of the resistance heating elements on the filter end face.
  • the filter channels 32a, 32b are shown exaggeratedly large.
  • a heating wire 34a, 34b which is curved in a meandering manner in the plane of the end face 33, is arranged running across the filter plug 31.
  • the heating wire 34a, 34b has a rectangular cross-section, and it is arranged upright on the end face 33.
  • Other cross-sectional shapes for the heating wire with a large heat transfer area are also possible.
  • resistance heating conductors with heat transfer fins can be provided. It is also possible to arrange several heating wires with a round cross section one above the other.
  • a gas-permeable ceramic cover plate 35 is arranged above the heating wire 34 in a lattice structure defining flow channels, which structures the radiation of the heating wire 34a directed against the exhaust gas flow, 34b absorbed and fed back to the heating area by convective heat transfer with the exhaust gas mass flow, represented by arrows 36 and 39.
  • the cover plate 35 can, however, also be formed from a different material with a different structure, for example from open-pore, ie gas-permeable, ceramic foam. However, it is essential that the material is radiation absorbing.
  • the cover plate 35 and the filter body 30 are inserted into the filter housing 37 with a packing mat 38.
  • the cover plate 35 can be designed so that it simultaneously mechanically fixes the heating wire 34a, 34b on the end face 33 by pressing.
  • the side of the cover plate 35 facing the heating wire 34a, 34b can be provided with a groove contour adapted to the meandering shape, which fixes the exact alignment of the heating wire 34a, 34b to the filter body 30.
  • the exhaust gas mass flow can flow past the heating wire 34a, 34b into the filter channels 32a in the arrangement shown with low flow resistance.
  • the heating wire 34a, 34b is connected to a current source E via a switching device (not shown).
  • how the supervision acc. 12 shows a plurality of resistance heating elements 40 defining different heating zones arranged on the end face 41 of a filter body 42.
  • the cover plate 35 shown in FIG. 11 has been removed.
  • the heating zone in each case acted upon by a resistance heating element is larger in this embodiment because of the larger cross section of the heating wire and therefore comprises the arrangement of rectangular and triangular heating zones 45 and 46 shown in FIG. 12.
  • the resistance heating elements are designed in such a way that the triangular heating zones 46 have half the size of the rectangular heating zones 45, so that two heating elements connected in series and covering a triangular heating zone 46 have the same electrical resistance as a heating element covering a rectangular heating zone 45.
  • the individual heating elements can be switched on and off individually to the power supply via a switching device (not shown), so that the entire filter surface can be regenerated by successively switching the individual heating elements on and off.

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  • 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)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP88105338A 1987-04-11 1988-04-02 Dispositif de filtrage des particules de suie de l'échappement d'un moteur à combustion Expired - Lifetime EP0286932B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105338T ATE77441T1 (de) 1987-04-11 1988-04-02 Filteranordnung zum entfernen von russpartikeln aus abgasen einer verbrennungskraftmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3712333 1987-04-11
DE19873712333 DE3712333A1 (de) 1987-04-11 1987-04-11 Regenerierbare filteranordnung zum entfernen von russpartikeln aus abgasen

Publications (3)

Publication Number Publication Date
EP0286932A2 true EP0286932A2 (fr) 1988-10-19
EP0286932A3 EP0286932A3 (en) 1989-01-11
EP0286932B1 EP0286932B1 (fr) 1992-06-17

Family

ID=6325434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105338A Expired - Lifetime EP0286932B1 (fr) 1987-04-11 1988-04-02 Dispositif de filtrage des particules de suie de l'échappement d'un moteur à combustion

Country Status (4)

Country Link
US (1) US4872889A (fr)
EP (1) EP0286932B1 (fr)
AT (1) ATE77441T1 (fr)
DE (2) DE3712333A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359031A1 (fr) * 1988-09-12 1990-03-21 FEV Motorentechnik GmbH & Co. KG Dispositif de filtrage des particules de suie de l'échappement d'un moteur à combustion interne
EP0369985A1 (fr) * 1988-11-14 1990-05-23 VOEST-ALPINE AUTOMOTIVE Gesellschaft m.b.H. Filtre particulaire régénératif pour gaz d'échappement
WO1991003631A1 (fr) * 1988-03-11 1991-03-21 Fleck Carl M Filtre a gaz d'echappement diesel
WO1993019288A1 (fr) * 1992-03-21 1993-09-30 Fev Motorentechnik Gmbh & Co. Kg Dispositif de filtration pour eliminer les particules de suie des gaz d'echappement d'un moteur a combustion interne
EP0637359B1 (fr) * 1992-04-22 1996-12-18 Sandvik Aktiebolag Catalyseur avec moyen de chauffage
WO2004100751A1 (fr) * 2003-05-15 2004-11-25 BSH Bosch und Siemens Hausgeräte GmbH Appareil de nettoyage, en particulier aspirateur, comprenant un dispositif filtrant ceramique
FR3065029A1 (fr) * 2017-04-07 2018-10-12 Faurecia Systemes D'echappement Dispositif de purification de gaz d'echappement, procede de pilotage correspondant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914758A1 (de) * 1989-05-05 1990-11-08 Mann & Hummel Filter Russfilter zur reinigung des abgastroms einer brennkraftmaschine
JP3147372B2 (ja) * 1990-10-10 2001-03-19 株式会社日本自動車部品総合研究所 排気ガス微粒子捕集用フィルタ
JPH04179818A (ja) * 1990-11-14 1992-06-26 Nippon Soken Inc 排気ガス微粒子浄化装置
JP3000750B2 (ja) * 1991-09-20 2000-01-17 株式会社デンソー 自己発熱型フィルタ
US5457945A (en) * 1992-01-07 1995-10-17 Pall Corporation Regenerable diesel exhaust filter and heater
US5470364A (en) * 1992-01-07 1995-11-28 Pall Corporation Regenerable diesel exhaust filter
US5228891A (en) * 1992-01-07 1993-07-20 Pall Corporation Regenerable diesel exhaust filter
US5250094A (en) 1992-03-16 1993-10-05 Donaldson Company, Inc. Ceramic filter construction and method
US5224973A (en) * 1992-04-20 1993-07-06 Donaldson Company, Inc. Filter cartridge for trap apparatus
DE4230667C1 (de) * 1992-09-14 1994-03-31 Energietechnik Bremen Gmbh Partikelfilter für eine Gasströmung
US5655212A (en) * 1993-03-12 1997-08-05 Micropyretics Heaters International, Inc. Porous membranes
JPH0949421A (ja) * 1995-05-30 1997-02-18 Sumitomo Electric Ind Ltd ディーゼルエンジン用パティキュレートトラップ
DE19530749A1 (de) * 1995-08-22 1997-03-06 Hjs Fahrzeugtechnik Gmbh & Co Vorrichtung zum Entfernen von Rußpartikeln aus Abgasen
FR2760531B1 (fr) * 1997-03-07 1999-04-16 Inst Francais Du Petrole Dispositif destine a detecter l'encrassement et a chauffer localement un milieu isolant
EP1113154A3 (fr) * 1999-12-30 2003-12-03 Faurecia Abgastechnik GmbH Filtre à suie pour véhicules diesel
DE10029978A1 (de) * 2000-06-26 2002-01-10 Zeuna Staerker Kg Vorrichtung zur Nachbehandlung von Dieselabgasen
DE10127223A1 (de) * 2001-05-22 2003-01-23 Ego Elektro Geraetebau Gmbh Heizungseinrichtung für Filterelemente eines Partikelfilters und Partikelfilter
US20020179523A1 (en) * 2001-05-29 2002-12-05 Quackenbush Mark S. Burping filter
DE10151425A1 (de) * 2001-10-18 2003-04-30 Opel Adam Ag Partikelfilter zum Reinigen von motorischen Abgasen
DE10210950A1 (de) * 2002-03-13 2003-09-25 Opel Adam Ag Rußfilter mit Umkehr der Abgasströmungsrichtung
DE10300718A1 (de) * 2003-01-08 2004-07-22 E.G.O. Elektro-Gerätebau GmbH Heizungseinrichtung für einen Filter, insbesondere einen Dieselrußfilter
DE10300717A1 (de) * 2003-01-08 2004-07-22 E.G.O. Elektro-Gerätebau GmbH Halterung für einen dünnen Rohrheizkörper in einem Filter
DE10308675A1 (de) * 2003-02-28 2004-09-09 Adam Opel Ag Regenerierbares Partikelfilter
JP2007283755A (ja) * 2006-03-23 2007-11-01 Ngk Insulators Ltd 目封止ハニカム構造体の製造方法及び目封止ハニカム構造体
JP4023514B1 (ja) * 2006-09-07 2007-12-19 日新電機株式会社 粒子状物質除去装置
US7931715B2 (en) * 2007-02-12 2011-04-26 Gm Global Technology Operations, Inc. DPF heater attachment mechanisms
US7862635B2 (en) * 2007-02-12 2011-01-04 Gm Global Technology Operations, Inc. Shielded regeneration heating element for a particulate filter
US8763378B2 (en) * 2007-06-15 2014-07-01 GM Global Technology Operations LLC Electrically heated particulate filter embedded heater design
US8484953B2 (en) * 2007-06-15 2013-07-16 GM Global Technology Operations LLC Electrically heated particulate filter using catalyst striping
US8291694B2 (en) * 2007-06-15 2012-10-23 GM Global Technology Operations LLC Electrically heated particulate filter enhanced ignition strategy
US8388741B2 (en) * 2007-08-14 2013-03-05 GM Global Technology Operations LLC Electrically heated particulate filter with reduced stress
US8112990B2 (en) 2007-09-14 2012-02-14 GM Global Technology Operations LLC Low exhaust temperature electrically heated particulate matter filter system
US8156737B2 (en) * 2007-09-18 2012-04-17 GM Global Technology Operations LLC Elevated exhaust temperature, zoned, electrically-heated particulate matter filter
DE102008050019B4 (de) 2007-10-04 2020-07-09 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) System und Verfahren zur variablen Leistungsverteilung für zonenweise Regeneration eines elektrisch beheizten Partikelfilters
US8146350B2 (en) 2007-10-04 2012-04-03 GM Global Technology Operations LLC Variable power distribution for zoned regeneration of an electrically heated particulate filter
DE102008039589B4 (de) * 2007-10-22 2013-05-29 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Auslegung eines elektrisch beheizten Katalysators mit eingebetteter Heizvorrichtung
US20100095657A1 (en) * 2008-10-21 2010-04-22 Gm Global Technology Operations, Inc. Electrically heated diesel particulate filter (dpf)
WO2010096916A1 (fr) * 2009-02-27 2010-09-02 Andre Boulet Structure de type contacteur fluidique à passages parallèles
US10315159B2 (en) 2010-08-27 2019-06-11 Inventys Thermal Technoogies Inc. Method of adsorptive gas separation using thermally conductive contactor structure
JP5904420B2 (ja) 2010-08-27 2016-04-13 インヴェンティス サーマル テクノロジーズ インコーポレイテッド 熱伝導性接触器構造を用いる吸着ガス分離の方法
DE102011050443A1 (de) 2011-05-17 2012-11-22 Fev Gmbh Regeneration eines Filters zur Behandlung von Verbrennungsabgas
AU2012278892B2 (en) 2011-07-02 2017-10-26 Inventys Thermal Technologies Inc. System and method for integrated adsorptive gas separation of combustion gases
US10174943B2 (en) 2012-12-31 2019-01-08 Inventys Thermal Technologies Inc. System and method for integrated carbon dioxide gas separation from combustion gases
US10087799B2 (en) * 2015-07-01 2018-10-02 Denso International America, Inc. Exhaust device and method of manufacturing an exhaust device with a thermally enhanced substrate
FR3086973B1 (fr) * 2018-10-05 2021-01-22 Faurecia Systemes Dechappement Dispositif de chauffage de gaz d'echappement, notamment pour un moteur a combustion, comprenant une grille parcourue par du courant electrique
CN113357132B (zh) * 2021-05-13 2023-05-09 沧州达峰化学有限公司 一种具有呼吸模拟进气结构的空压机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373330A (en) * 1981-06-29 1983-02-15 General Motors Corporation Diesel engine dual path exhaust cleaner and burner system
US4456457A (en) * 1981-04-28 1984-06-26 Nippon Soken, Inc. Exhaust gas cleaning device for diesel engine
US4512786A (en) * 1982-04-21 1985-04-23 Mazda Motor Corporation Exhaust gas purifying device
US4519820A (en) * 1982-08-05 1985-05-28 Nippondenso Co., Ltd. Fitter apparatus for purifying exhaust gases
US4523935A (en) * 1981-08-03 1985-06-18 Nippon Soken, Inc. Electrical heater retained in a porous ceramic structure
US4548625A (en) * 1984-07-11 1985-10-22 Toyota Jidosha Kabushiki Kaisha Exhaust gas cleaning device for diesel engines

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698517A (en) * 1980-01-09 1981-08-08 Toyota Motor Corp Apparatus for removing fine particles contained in exhaust gas of internal combustion engine
US4276066A (en) * 1980-02-25 1981-06-30 General Motors Corporation Monolith diesel exhaust filter with self-regeneration
JPS6053165B2 (ja) * 1981-03-16 1985-11-25 株式会社豊田中央研究所 内燃機関排気吐煙の捕集装置
US4505107A (en) * 1981-10-26 1985-03-19 Nippondenso Co., Ltd. Exhaust gas cleaning apparatus
JPS58210310A (ja) * 1982-06-01 1983-12-07 Nippon Denso Co Ltd 内燃機関のカ−ボン微粒子浄化装置
US4455823A (en) * 1982-10-20 1984-06-26 General Motors Corporation Diesel exhaust particulate trap with pleated filter
US4695429A (en) * 1985-03-20 1987-09-22 Casco Products Corporation Engine exhaust particulate ignitor construction
DE3529684A1 (de) * 1985-08-20 1987-02-26 Wengenrodt Fa Russfilter fuer dieselmotore

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456457A (en) * 1981-04-28 1984-06-26 Nippon Soken, Inc. Exhaust gas cleaning device for diesel engine
US4373330A (en) * 1981-06-29 1983-02-15 General Motors Corporation Diesel engine dual path exhaust cleaner and burner system
US4523935A (en) * 1981-08-03 1985-06-18 Nippon Soken, Inc. Electrical heater retained in a porous ceramic structure
US4512786A (en) * 1982-04-21 1985-04-23 Mazda Motor Corporation Exhaust gas purifying device
US4519820A (en) * 1982-08-05 1985-05-28 Nippondenso Co., Ltd. Fitter apparatus for purifying exhaust gases
US4548625A (en) * 1984-07-11 1985-10-22 Toyota Jidosha Kabushiki Kaisha Exhaust gas cleaning device for diesel engines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003631A1 (fr) * 1988-03-11 1991-03-21 Fleck Carl M Filtre a gaz d'echappement diesel
EP0359031A1 (fr) * 1988-09-12 1990-03-21 FEV Motorentechnik GmbH & Co. KG Dispositif de filtrage des particules de suie de l'échappement d'un moteur à combustion interne
EP0369985A1 (fr) * 1988-11-14 1990-05-23 VOEST-ALPINE AUTOMOTIVE Gesellschaft m.b.H. Filtre particulaire régénératif pour gaz d'échappement
WO1993019288A1 (fr) * 1992-03-21 1993-09-30 Fev Motorentechnik Gmbh & Co. Kg Dispositif de filtration pour eliminer les particules de suie des gaz d'echappement d'un moteur a combustion interne
US5472462A (en) * 1992-03-21 1995-12-05 Fev Motorentechnik Gmbh & Co. Kg Filter arrangement for removal of soot particles from the exhaust gases of an internal combustion engine
EP0637359B1 (fr) * 1992-04-22 1996-12-18 Sandvik Aktiebolag Catalyseur avec moyen de chauffage
WO2004100751A1 (fr) * 2003-05-15 2004-11-25 BSH Bosch und Siemens Hausgeräte GmbH Appareil de nettoyage, en particulier aspirateur, comprenant un dispositif filtrant ceramique
FR3065029A1 (fr) * 2017-04-07 2018-10-12 Faurecia Systemes D'echappement Dispositif de purification de gaz d'echappement, procede de pilotage correspondant

Also Published As

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DE3872025D1 (de) 1992-07-23
US4872889A (en) 1989-10-10
DE3712333A1 (de) 1988-10-20
EP0286932A3 (en) 1989-01-11
EP0286932B1 (fr) 1992-06-17
ATE77441T1 (de) 1992-07-15

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