EP0340784A1 - Gerät zum Vermindern der von Verbrennungsmotorabgasen verursachten Luftverschmutzung - Google Patents

Gerät zum Vermindern der von Verbrennungsmotorabgasen verursachten Luftverschmutzung Download PDF

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Publication number
EP0340784A1
EP0340784A1 EP89108116A EP89108116A EP0340784A1 EP 0340784 A1 EP0340784 A1 EP 0340784A1 EP 89108116 A EP89108116 A EP 89108116A EP 89108116 A EP89108116 A EP 89108116A EP 0340784 A1 EP0340784 A1 EP 0340784A1
Authority
EP
European Patent Office
Prior art keywords
fact
casing
cartridge
inlet
fibres
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
EP89108116A
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English (en)
French (fr)
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EP0340784B1 (de
Inventor
Roberto Evangelisti
Pier Luigi Tenci
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.)
ATEC Srl
ENTE PER LE NUOVE TECNOLOGIE L'ENERGIA E L'AMBIEN
Original Assignee
ATEC Srl
Agenzia Nazionale per le Nuove Tecnologie lEnergia e lo Sviluppo Economico Sostenibile ENEA
Comitato Nazionale per la Ricerca e per lo Sviluppo dell Energia
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 ATEC Srl, Agenzia Nazionale per le Nuove Tecnologie lEnergia e lo Sviluppo Economico Sostenibile ENEA, Comitato Nazionale per la Ricerca e per lo Sviluppo dell Energia filed Critical ATEC Srl
Priority to AT89108116T priority Critical patent/ATE79442T1/de
Publication of EP0340784A1 publication Critical patent/EP0340784A1/de
Application granted granted Critical
Publication of EP0340784B1 publication Critical patent/EP0340784B1/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
    • 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
    • F01N3/0217—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 the filtering elements having the form of hollow cylindrical bodies
    • 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
    • F01N3/0226—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 fibrous
    • 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
    • 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
    • F01N3/035—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 catalytic reactors, e.g. catalysed diesel particulate filters
    • 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
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2835—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support fibrous
    • 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
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • F01N2330/10—Fibrous material, e.g. mineral or metallic wool
    • 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
    • F01N2330/12—Metallic wire mesh fabric or knitting
    • 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • F01N2410/08—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device in case of clogging, e.g. of particle filter
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/08—Gas passages being formed between the walls of an outer shell and an inner chamber
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
    • 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
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction

Definitions

  • the present invention relates to a device for reducing atmospheric pollution by exhaust gases of internal combustion engines. More particularly, the present invention relates to a device for reducing atmospheric pollution by the exhaust gas as from diesel cycle engines both those installed on vehicles and those installed in static installations (for example generating plants).
  • the object of the present invention is that of providing a device for reducing atmospheric pollution by exhaust gases from internal combustion engines, able to effect a purification such as drastically to reduce the toxicity of such exhaust gases whilst being of a restricted production cost in comparison with known devices of the above specified type.
  • the said object is achieved by the present invention in that it relates to a device for reducing atmospheric pollution by internal combustion engine exhaust gases, of the type comprising a hollow casing provided with an inlet for the exhaust gas to be purified and an outlet for the purified exhaust gases, and purifier means interposed between the said inlet and outlet, characterised by the fact that the said purifier means essentially comprise mineral fibres activated by means of a catalyst of noble metal.
  • a device for reducing atmospheric pollution by exhaust gases of internal combustion engines formed according to the principles of the present invention is generally indicated with the reference numeral 1.
  • the device 1 is of the type comprising a hollow casing 2 provided with an inlet 3 for the exhaust gases to be purified and an outlet 4 for the purified exhaust gases, and purifier means 5 interposed between the said inlet 5 and outlet 4.
  • the casing 2 has a cylindrical structure with tubular side walls 7, an upper wall 8 and a lower wall 9.
  • the upper wall 8 has an axial through-hole 11 and supports a conical diffuser 12 the purpose of which is to allow a progressive expansion of the exhaust gas to be purified coming from the inlet 3.
  • the lower wall 9 has an offset through-hole 13 in which is fixed a tubular connector 14.
  • the purifier means 5 are essentially constituted by mineral fibres 6 rendered active by means of a noble metal catalyst deposited thereon.
  • These fibres 6 can be amorphous, "disordered”, practically free from mechanical strength, or else aligned, "ordered”, in such a way as to present a mechanical strength at least three times that of the mechanical strength of the amorphous fibres.
  • these are preferably constituted by quartz and/or silica fibres, whilst the noble metal catalyst is advantageously a platinum catalyst.
  • the device 1 includes support means 15 for the mineral fibres 6, essentially constituted by a stocking of woven filiform material contacting these fibres 6 in such a way as to define, between the inlet 3 and the outlet 4, alternate layers of filiform material 15 and mineral fibres 6.
  • the stocking 15 of woven filiform material is constituted by a plurality of free and elastically deformable meshes conveniently made by mechanical knitting of a stainless steel wire particularly adapted to resist high temperatures such as those of the exhaust gases of an internal combustion engine.
  • the mineral fibres 6 and the stocking 15 of woven filiform material are wound in a coil (as illustrated in Figure 4) in such a way as to define a tubular mattress 17 which is interposed between two tubular metal meshes, respectively an inner mesh 18 and an outer mesh 19.
  • these meshes 18, 19 are obtained as expanded metal meshes of stainless steel sheet of a type adapted to resist high temperature as specified above.
  • the mineral fibres 6, the stocking 15 and the rigid meshes 18, 19 together define a cartridge 20 which is installed in axial position within the casing 2 and is dimensioned in such a way that the diameter of the inner mesh 18 is substantially coincident with the diameter of the through-hole 11 in the upper wall 8 of the casing 2.
  • the upper portion of the cartridge 20 is positioned, in use, between inner and outer centring collars 21, 22 extending from the inner side of the upper wall 8 of the casing 2 through the through-hole 11 mentioned above.
  • the lower portion of the cartridge 20 is housed within an annular bowl 24 substantially constituted by a flat ring 25 and two collars 26, 27 extending perpendicularly from this latter and entirely identical to the collars 21, 22 described above.
  • the device 1 has a further innovative characteristic according to which the dimensions of the cartridge 20 in a longitudinal and transverse sense are less than the respective internal longitudinal and transverse dimensions of the casing 2, for the purpose of allowing, in use, an expansion thereof within the casing itself without creating mechanical stresses between these two components.
  • the cartridge 20 is retained in the working position by means of a disc 30 resting on the lower surface of the annular bowl 24 and mechanically connected to a crosspiece 31 supported by the collar 21 by means of an axial tie rod 32 a threaded leg 33 of which retains the disc 30 by means of a nut 34.
  • the material constituting the tie rod 32 is of the same type as that constituting the rigid meshes 18, 19 of the cartridge 20, in such a way as to present a substantially identical thermal expansion to that of the meshes 18, 19 themselves.
  • the disc 30 is provided with a set of three radial tongues 35 angularly equidistant from one another and extending towards the inner surface of the lateral wall 7 of the casing 2 without, however, touching this latter ( Figures 2 and 3).
  • the tongues 35 are bent with respect to the plane of the disc 30 in such a way as to form with this latter an angle of substantially 45° and present a circular outline such that these do not dig in to the wall 7 during longitudinal excursions of the cartridge 20 by the effect of the increase in the working temperature.
  • the device 1 For the purpose of distributing exhaust gases uniformly over the entire inner surfaces of the cartridge 20 the device 1 is provided with a pair of flow deflectors 37, 38 substantially constituted by tubular elements of conical profile of different diameters fixed coaxially to the crosspiece 31.
  • the disc 30 is provided with a through-hole 40 of suitable dimensions, which puts the inlet 3 in direct communication with the outlet 4 of the casing 2.
  • the device 1 operates in general in a manner similar to known devices of this type in the sense that the exhaust gases gain access to the interior of the casing 2 through the inlet 3 and subsequently flow to the outlet 4 after having traversed the cartridge 2 and having been purified by means of the purifier 5 contained in it.
  • the use of the stocking 15 of woven wire-like material certainly performs two important functions: a principle function consisting in supporting the mineral fibres 6 correctly for the purpose of maintaining them always distributed in a uniform manner within the interior of the cartridge 20 and therefore making the purifying effect homogeneous in time; a secondary, but equally important function, consisting in creating, between the inlet 3 and the outlet 4, an alternating set of layers of mineral fibres and wire material, this latter causing a certain separation between adjacent layers of mineral fibres and therefore a good distribution of the flow of gas between the mineral fibres themselves, and, ultimately, an optimum purifying effect.
  • the system for fixing the cartridge 20 to the casing 2 by means of the tie rod 32 (having a coefficient of thermal expansion similar to that of the rigid meshes 18, 19) allows, simultaneously, the fixing of the cartridge 20 to the casing 2 and the free expansion of the meshes 18, 19 without casuing rupture of these meshes by exceeding the yield points of the respective metal materials.
  • the presence of the hole 40 in the disc 30 has substantially no effect in normal operating conditions of the device 1, that is to say in the case in which the combustion residues are consumed by part of the purifier means 5 in such a way as to cause no accumulation of these between the fibres 6.
  • the momentary blockage of the cartridge 20 and the constant inflow of gases to the interior thereof cause an excess pressure which does not exceed a predetermined safety level since the discharge gas can momentarily flow out through the hole 40 allowing the purifier means 5 to digest the overload of combustion residues.
  • the combined action of the diffuser 12 and the flow deflectors 37, 38 permits possible damage due to the rapid expansion of the exhaust gas jet flowing into the interior of the cartridge 20 to be reduced to the minimum.
  • the high efficiency of the purifier means 5, conveniently supported by the stocking 15 of resiliently deformable woven metal wire permits a drastic reduction in the more noxious and repeated emissions such as the particles and oxides of nitrogen, and the almost total elimination of the oxides of carbon and unburnt hydrocarbons, containing the back pressure within more than acceptable limits.
  • the device 1 can be made at an overall cost which is significantly less than the cost of ceramic devices currently utilised and described above.
  • the device formed according to the present invention can be utilised advantageously to treat exhaust gases from any type of internal combustion engine, whether it be of the Diesel cycle or Otto cycle type, installed on vehicles or in fixed installations (for example generators) as well as to treat the exhaust gases of heating boilers adapted for industrial and civil installations.
  • the support for the cartridge 20 could be achieved by means of several tie rods either positioned within or outside the cartridge itself, the concept of utilising a material with a coefficient of thermal expansion as close as possible to that of the rigid meshes 18, 19 remaining the same. It is also evident that other ways of support could be thought up, for example utilising resilient means able to maintain the cartridge in the correct working position whilst allowing termal expansion in longitudinal and transverse directions within the associated case.
  • the number of flow deflectors could be greater or less than two, and the associated structure could be different from the conical structure described above.
EP89108116A 1988-05-06 1989-05-05 Gerät zum Vermindern der von Verbrennungsmotorabgasen verursachten Luftverschmutzung Expired - Lifetime EP0340784B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89108116T ATE79442T1 (de) 1988-05-06 1989-05-05 Geraet zum vermindern der von verbrennungsmotorabgasen verursachten luftverschmutzung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6741788 1988-05-06
IT67417/88A IT1219270B (it) 1988-05-06 1988-05-06 Dispositivo per la riduzione dell'inquinamento atmosferico da gas di scarico di motori a combustione interna

Publications (2)

Publication Number Publication Date
EP0340784A1 true EP0340784A1 (de) 1989-11-08
EP0340784B1 EP0340784B1 (de) 1992-08-12

Family

ID=11302207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108116A Expired - Lifetime EP0340784B1 (de) 1988-05-06 1989-05-05 Gerät zum Vermindern der von Verbrennungsmotorabgasen verursachten Luftverschmutzung

Country Status (5)

Country Link
EP (1) EP0340784B1 (de)
AT (1) ATE79442T1 (de)
DE (1) DE68902417T2 (de)
ES (1) ES2034477T3 (de)
IT (1) IT1219270B (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605853A1 (de) * 1993-01-06 1994-07-13 Minnesota Mining And Manufacturing Company Dieselpartikelfilterelement und Filter
WO1994018440A1 (de) * 1993-02-10 1994-08-18 Alfred Buck Vorrichtung zur katalytischen reinigung von strömenden gasen, insbesondere von abgasen von verbrennungsmotoren
EP0679799A3 (de) * 1994-04-28 1996-03-27 Isuzu Ceramics Res Inst Dieselabgas-Partikelfilter.
DE19504450A1 (de) * 1995-02-10 1996-08-22 Florian Gamel Abgasreinigungsvorrichtung für Verbrennungskraftmaschinen
FR2751559A1 (fr) * 1996-07-25 1998-01-30 Sprint Metal Sa Filtre pour la retention de particules solides contenues dans les gaz d'echappement d'un moteur diesel et tampon de filtration
FR2782744A1 (fr) * 1998-03-26 2000-03-03 Charles Lauricella Tuyau d'echappement anti-pollution 3 jcl
EP1048827A1 (de) * 1999-04-30 2000-11-02 Oberland Mangold GmbH Filterstruktur zum Filtern von Feststoffen aus einem Gasstrom
EP1123728A1 (de) * 2000-02-08 2001-08-16 Luigi Pellegrino Gerät zum Vermindern der von Abgasen verursachten Luftverschmutzung
EP1340890A1 (de) * 2002-02-28 2003-09-03 Luigi Pellegrino Gerät zum Vermindern der von Abgasen verursachten Luftverschmutzung
WO2005061079A1 (de) * 2003-12-20 2005-07-07 Robert Bosch Gmbh Abgasnachbehandlungsanordnung
EP1584369A1 (de) * 2004-04-05 2005-10-12 Luigi Pellegrino Vorrichtung zur Verringerung von Schadstoffen in den Abgasen eines Verbrennungsmotors
EP1624165A1 (de) * 2004-08-05 2006-02-08 Luigi Pellegrino Vorrichtung zur Reduktion von Schadstoffen im Abgasstrom einer Brennkraftmaschine
EP1670572B1 (de) * 2003-09-26 2011-08-24 N.V. Bekaert S.A. Katalysator und herstellungsverfahren dafür
KR101378791B1 (ko) * 2011-09-26 2014-03-27 최승현 차압 및 배기음 저감을 위한 촉매반응기

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1254054B (it) * 1991-05-13 1995-09-07 Saverio Megna Dispositivo di depurazione dei gas di scarico di un motore a combustione interna
FR2683854A1 (fr) * 1991-11-19 1993-05-21 Ecia Equip Composants Ind Auto Structure de support d'au moins un materiau de catalyse des gaz d'echappement d'un moteur notamment de vehicule automobile.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB832890A (en) * 1957-08-08 1960-04-21 Bendix Aviat Corp Coalescer element construction
CH447718A (fr) * 1964-11-05 1967-11-30 Berliet Automobiles Pot d'échappement, notamment pour moteur Diesel, et son procédé de fabrication
US4175107A (en) * 1974-09-03 1979-11-20 Matsushita Electric Industrial Co., Ltd. Catalytic exhaust gas purifying device
US4195063A (en) * 1974-09-03 1980-03-25 Matsushita Electric Industrial Co., Ltd. Catalyst element for cleaning exhaust gases
US4220625A (en) * 1976-10-20 1980-09-02 Matsushita Electric Industrial Co., Ltd. Exhaust gas control equipment
DE3228325A1 (de) * 1982-07-29 1984-02-02 Fa. J. Eberspächer, 7300 Esslingen Filter- und nachverbrennungseinrichtung fuer abgase
DE3545762A1 (de) * 1985-12-21 1987-07-02 Leistritz Maschfabrik Paul Russfilter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB832890A (en) * 1957-08-08 1960-04-21 Bendix Aviat Corp Coalescer element construction
CH447718A (fr) * 1964-11-05 1967-11-30 Berliet Automobiles Pot d'échappement, notamment pour moteur Diesel, et son procédé de fabrication
CH469900A (fr) * 1964-11-05 1969-03-15 Berliet Automobiles Dispositif d'épuration des gaz d'échappement de moteurs thermiques renfermant des composants solides
US4175107A (en) * 1974-09-03 1979-11-20 Matsushita Electric Industrial Co., Ltd. Catalytic exhaust gas purifying device
US4195063A (en) * 1974-09-03 1980-03-25 Matsushita Electric Industrial Co., Ltd. Catalyst element for cleaning exhaust gases
US4220625A (en) * 1976-10-20 1980-09-02 Matsushita Electric Industrial Co., Ltd. Exhaust gas control equipment
DE3228325A1 (de) * 1982-07-29 1984-02-02 Fa. J. Eberspächer, 7300 Esslingen Filter- und nachverbrennungseinrichtung fuer abgase
DE3545762A1 (de) * 1985-12-21 1987-07-02 Leistritz Maschfabrik Paul Russfilter

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605853A1 (de) * 1993-01-06 1994-07-13 Minnesota Mining And Manufacturing Company Dieselpartikelfilterelement und Filter
WO1994018440A1 (de) * 1993-02-10 1994-08-18 Alfred Buck Vorrichtung zur katalytischen reinigung von strömenden gasen, insbesondere von abgasen von verbrennungsmotoren
EP0679799A3 (de) * 1994-04-28 1996-03-27 Isuzu Ceramics Res Inst Dieselabgas-Partikelfilter.
DE19504450A1 (de) * 1995-02-10 1996-08-22 Florian Gamel Abgasreinigungsvorrichtung für Verbrennungskraftmaschinen
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EP1048827A1 (de) * 1999-04-30 2000-11-02 Oberland Mangold GmbH Filterstruktur zum Filtern von Feststoffen aus einem Gasstrom
EP1123728A1 (de) * 2000-02-08 2001-08-16 Luigi Pellegrino Gerät zum Vermindern der von Abgasen verursachten Luftverschmutzung
EP1340890A1 (de) * 2002-02-28 2003-09-03 Luigi Pellegrino Gerät zum Vermindern der von Abgasen verursachten Luftverschmutzung
EP1670572B1 (de) * 2003-09-26 2011-08-24 N.V. Bekaert S.A. Katalysator und herstellungsverfahren dafür
WO2005061079A1 (de) * 2003-12-20 2005-07-07 Robert Bosch Gmbh Abgasnachbehandlungsanordnung
EP1584369A1 (de) * 2004-04-05 2005-10-12 Luigi Pellegrino Vorrichtung zur Verringerung von Schadstoffen in den Abgasen eines Verbrennungsmotors
EP1624165A1 (de) * 2004-08-05 2006-02-08 Luigi Pellegrino Vorrichtung zur Reduktion von Schadstoffen im Abgasstrom einer Brennkraftmaschine
KR101378791B1 (ko) * 2011-09-26 2014-03-27 최승현 차압 및 배기음 저감을 위한 촉매반응기

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DE68902417D1 (de) 1992-09-17
ATE79442T1 (de) 1992-08-15
IT8867417A0 (it) 1988-05-06
IT1219270B (it) 1990-05-03
DE68902417T2 (de) 1993-01-07
EP0340784B1 (de) 1992-08-12
ES2034477T3 (es) 1993-04-01

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