WO2008078021A2 - Media filtrant pour dispositif de filtration des gaz d'echappement d'un moteur diesel, dispositif de filtration mettant en oeuvre un tel media, et ligne d'echappement des gaz d'un moteur a combustion interne mettant en oeuvre un tel dispositif - Google Patents
Media filtrant pour dispositif de filtration des gaz d'echappement d'un moteur diesel, dispositif de filtration mettant en oeuvre un tel media, et ligne d'echappement des gaz d'un moteur a combustion interne mettant en oeuvre un tel dispositif Download PDFInfo
- Publication number
- WO2008078021A2 WO2008078021A2 PCT/FR2007/052441 FR2007052441W WO2008078021A2 WO 2008078021 A2 WO2008078021 A2 WO 2008078021A2 FR 2007052441 W FR2007052441 W FR 2007052441W WO 2008078021 A2 WO2008078021 A2 WO 2008078021A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ceramic
- filtration
- filter
- structure according
- exhaust gas
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0006—Honeycomb structures
- C04B38/0016—Honeycomb structures assembled from subunits
- C04B38/0019—Honeycomb structures assembled from subunits characterised by the material used for joining separate subunits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2455—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the whole honeycomb or segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2478—Structures comprising honeycomb segments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2482—Thickness, height, width, length or diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2486—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure characterised by the shapes or configurations
- B01D46/2488—Triangular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2486—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure characterised by the shapes or configurations
- B01D46/249—Quadrangular e.g. square or diamond
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2484—Cell density, area or aspect ratio
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
-
- 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
- F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
- F01N2350/02—Fitting ceramic monoliths in a metallic housing
-
- 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
- F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
- F01N2350/02—Fitting ceramic monoliths in a metallic housing
- F01N2350/06—Fitting ceramic monoliths in a metallic housing with means preventing gas flow by-pass or leakage
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention generally relates to the field of particulate filters, and more particularly to an exhaust gas filtration device for a diesel engine.
- the present invention relates to the implementation and construction of an original filter media, intended to be integrated within a device for filtering the exhaust gas of a diesel engine.
- catalytic converters or catalysts usually consisting of a stainless steel casing, a thermal insulator and a support honeycomb impregnated with precious metals, such as platinum or rhodium.
- catalytic converters now include a particulate filter, the function of which is to retain the carbon particles, constituting the unburnt particles emitted by the engine.
- a particulate filter the function of which is to retain the carbon particles, constituting the unburnt particles emitted by the engine.
- Diesel particulate filter techniques used today or under development, all face the major problem of incomplete and untimely combustion of particles retained on the filter media. Indeed for urban use conditions, the temperature of the exhaust gas reached is insufficient to cause this combustion and significantly limit clogging of the filter.
- CTR continuous Regenerating Trap
- This means consists of a catalyst support on which is fixed the catalyst, which is usually a precious metal such as platinum or rhodium.
- NO 2 produced by the action of the latter has the property of oxidizing carbon particles from 250 ° C.
- the proper functioning of the filter depends on the average temperature reached and the ratio of particles emitted with respect to NO 2 formed.
- Cordierite is a ceramic that has a low thermal conductivity associated with average mechanical properties, and is therefore very sensitive to sudden temperature changes that accompany uncontrolled regeneration.
- Silicon carbide has a much better thermal conductivity (0.08 cal / cm / s / ° C against 0.0025 for cordierite), associated with much higher mechanical properties and a melting temperature of more than 2,000 ° C. It thus makes it possible to better withstand this uncontrolled combustion phenomenon without however being able to eliminate all the incidents. Indeed the weak point of the silicon carbide is its coefficient of high expansion, (4.5.10 ⁇ "against 1.10 ⁇ " for cordierite). Therefore, it bears less heat shocks than cordierite.
- the silicon carbide filter media are manufactured in segmented form and are in the form of mini blocks generally of square section, bonded to each other by a cement.
- This cement has the role of absorbing the dimensional differences during the combustion phases related to the large temperature variations that can be observed.
- this filtering medium is machined and turned to form cylindrical or oblong revolution forms to be then incorporated by force in a metal casing surrounded by a ceramic mat, said metal shell being intended to maintain assembled the different segments together.
- the objective of the present invention is to propose an original fabrication and assembly technique of the filtering medium, capable of very substantially reducing the thermal and mechanical stresses during brutal combustion of the deposited carbon particles (without any inconvenience), so as to eliminate the cracks that may ensue.
- Another object of the invention is to provide a method of assembly allowing sudden regenerations, and therefore significant variations in temperature without destructive effect on the filter, both with filtration media made of silicon carbide and cordierite or other ceramics usable for this function.
- Another object of the invention is to provide the possibility of having parallelepipedal shapes instead of the usual cylindrical shapes or revolutions, to be able to achieve extra flat filter media.
- Another object of this invention is to have the possibility of incorporating directly into the filter media electrical resistors possibly to overcome all the usual methods of regeneration used.
- This first relates to an exhaust gas filtration device comprising at least one set of filter units separated from each other by a mat or ceramic fabric coated on both sides with a ceramic glue, to hold them together while keeping them mechanically and thermally independent. These filter units are then inserted into a structure of a metallic, ceramic or other nature. One or more filter units are thus capable of being inserted into this structure so as to form larger or smaller sets depending on the intended use. The association in these structures of one or more filter units is carried out in the same manner, each filter unit being bonded to a ceramic support which separates it from its neighbor or from the structure in which it is contained.
- the filter units are in the form of a parallelepiped with a honeycomb structure and of square section, the size of which is between 20 and 200 millimeters per side, for lengths of 50 to more than 500 mm.
- said filter units of square section are mounted directly in the structure containing them, assembling as and when all the following components: filtering units, mat coated with a ceramic adhesive, for example by the method described below.
- the receptacle or envelope, containing the filter units can be made in two parts. It is coated with ceramic glue at each angle. It receives a flexible ceramic support pre-cut to the right dimension, said support having been pre-impregnated with water so that the glue can be distributed throughout the duration of the operation.
- all the filter units intended to be assembled after having been pre-impregnated with water are largely coated with ceramic glue.
- the assembly of the assembly is continued by thus disposing the filter units pre-coated with adhesive on the ceramic support, each filter unit being separated from its neighbor or from said receptacle or said envelope by the ceramic support according to the same procedure.
- the ceramic support consists of a mat or a fabric based on long fibers and having a density of between 150 and 500 kg / m 3 ; it has a thickness between 0.5 and 15 mm, depending on the type of application envisaged for the filter and the size of each filter unit. The choice of the final thickness depends on the level of thermal and mechanical insulation sought for the intended application as well as the geometry of the part to accommodate the variations in expansion.
- the adhesive used is preferably based on oxides or ceramic carbides, generally used for the bonding of brick or insulating refractory felt of class 26 or greater than 1400 ° C., the coefficient of expansion of which is close to that of the filtering medium. used.
- the filter units are each associated with an electric heating resistor (8), contiguous to said unit, or integrated therein.
- the invention also relates to an exhaust line of an internal combustion engine, incorporating the filtering device thus described.
- This exhaust line comprises at least one inlet for gases from said internal combustion, at least one filtration device for trapping the solid particles contained in said exhaust gas of said engine and at least one exhaust port to the atmosphere of said gases located downstream of said filtration device.
- the filtration device comprises at least one catalytic means and means for filtering said exhaust gases within a reaction chamber situated in the path of the flow of the exhaust gases, said means consisting of a plurality of filter units, as previously described; "said line comprises valves or valves intended to isolate a portion of the filter device by stopping the flow of exhaust gas reaching the level of the part concerned.
- FIG. 1 represents a schematic three-dimensional view of the device of the invention, comprising four filtering elements.
- Figure 2 shows a schematic sectional view of these four elements assembled and glued in a metal box.
- Figures 3 and 4 show a schematic three-dimensional view of these four elements assembled and glued in the can illustrating a possibility of welding.
- Figures 5 and 6 show schematically four filter elements assembled and glued in a metal box substantially different from that shown in Figures 3 and 4, a portion being in the form of cover ensuring a covering.
- Figure 5 shows how said box must be stressed before welding so as to ensure good compression of the ceramic mat to ensure a good seal.
- FIG. 7 represents respectively in section and in perspective the use of filtering elements of triangular section and their assembly in a metal box.
- FIG. 8 illustrates a variant of the invention, in which electric heating resistors for heating each filter element.
- FIG. 10 schematically illustrates a filtration device implementing the filtering elements of the invention, incorporating electrical resistances so as to control the regeneration phases.
- the units or filter elements (1) consist of a filter media made of cordierite, or silicon carbide, or another ceramic adapted to the conditions, including thermal conditions, to which said elements are likely to be submitted.
- These filter units (1) are in the form of a parallelepiped with a honeycomb structure. In the example described, they are of square cross section, the size of which is between 20 and 200 millimeters per side, for lengths of 50 to more than 500 mm.
- These filtering units are assembled in a rigid support (4), preferably metal, constituted in this case by a box, by means of seals (5). It is this box that ensures the mechanical cohesion of the assembled filter units, these being further separated from each other by a seal (2, 3).
- seals (5) consist of a fabric or a ceramic mat, or any other flexible product having good resistance to high temperature.
- These seals (2, 3, 5) are coated on their two faces, that is to say on both sides intended to come into contact with the two filter units considered; by means of a ceramic glue, preferably based on oxides or ceramic carbides, (generally used for the bonding of brick or insulating refractory felt of class 26 or greater than 1,400 ° C., the coefficient of expansion of which is close to that of the filter medium used), during assembly, so as to ensure a bond between the fabric or the mat that constitutes them and the filter media of the filter units. They have a typical thickness of 0.5 to 15 mm.
- the joints are impregnated with water, to keep them sufficiently wet, and prevent them from drying the ceramic glue which they are then coated, for example with a brush.
- the adhesive must indeed remain malleable during the entire process of producing the filtration device. Because of this glue coating, the mat is therefore not deeply impregnated by said glue, but only superficially, and typically in one or two layers of the long fibers that constitute it. This is why, after assembly, the filtration units remain mechanically and thermally independent from each other.
- the thickness of the adhesive coating is close to 2 tenths of a millimeter.
- the glue does not penetrate inside the mat, so that the latter retains its mechanical properties and flexibility.
- the box (4) consists of a sheet preferably made of stainless steel, and whose thickness is adapted to the size of the assembly to be made, for example 1 to 2 mm for a square set of 100 to 150 mm side, see more than 2 mm for larger boxes. It is important that this box has a very good rigidity so as to keep the filter units together with each other and keep under pressure the mat that separates them.
- the adhesive that coats the surface between the mat and the filter is only intended to seal the assembly.
- the constituent plate of the box (4) In order to improve the rigidity of the constituent plate of the box (4), it is embossed. However, it can also be reinforced by reinforcements welded to its flanks.
- the box (4) is in the form of two parts (6) and (7), each of said parts partially surrounding four filter units in the example described. These two parts are secured to one another by welding a linear rod (8) at their junction areas.
- this method of assembly is facilitated, and is likely to be automated.
- the two parts (6, 7) are interlocked into one another like a lid on a box.
- This variant is advantageous for small boxes, typically up to 250 mm side.
- the realization of the whole is automatable.
- the section of the filter units is no longer of square shape, but of triangular shape (see FIG. 7), the principle of the invention remaining identical.
- This triangular section shape favors the construction of extra flat filters, typically having a height less than 100 mm. In addition, it allows to put filter media having excellent resistance to very severe regenerations.
- a heating electric resistance (8) is incorporated in the filtering units, intended, in known manner, to regenerate the filtering unit in question.
- heating resistors can be carried out during the assembly of the structure, on one of the faces thereof, as shown in FIG. 8, between the filter medium and the ceramic mat. , more or less secured to the filter media by the ceramic glue used in the assembly.
- heating resistors can also be carried out directly within said filter medium, in one of the channels (9) defined by the honeycomb structure which characterizes them, reserved for this purpose as represented by FIG. figure 9.
- electrically heated filter media is advantageously effected in a device comprising a system of valves or valves, for isolating part of the filter. Indeed, if one wants to program regenerations of said media when the engine is running, it is necessary to implement electrical powers of several kilowatts to simply offset all the calories that would be entrained in the exhaust. For example, for a 100 kW diesel engine operating at half load, the exhaust gas flow rate is close to 100 g / s, requiring an electric power of 20 kW to simply raise the exhaust gas temperature to 200 ° C. .
- the exhaust gas at the engine outlet is introduced into the device (10) via a pipe (11), then is directed to the catalyst elements (12), and then filtered at two filter structures (13, 14) containing the filtration units (1) according to the invention.
- Each of the filtration units is capable of being heated by means of heating resistors (8), associated with a corresponding electric circuit (15).
- valves or valves (16) are positioned at the outlet of the filtration structures, so as to be able to close off one or the other of the said structures, in order to maintain the obstructed structure at a high temperature, and to favor the general operation of the exhaust line.
- These valves or valves are actuated by any means, such as for example pneumatic cylinders (17).
- the device (10) further comprises an outlet pipe (18) of the exhaust gases thus filtered. Moreover, it advantageously comprises a temperature (19) and pressure (20) sensor, arranged upstream of the filtration structures (13, 14), and intended to promote the management of the operation of the filtration units.
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- Physics & Mathematics (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Filtering Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/518,734 US20100061899A1 (en) | 2006-12-13 | 2007-12-05 | Filtering medium for the exhaust gas filtration device of a diesel engine, filtration device implementing such medium, and exhaust gas line of an internal combustion engine implementing such device |
CA002671884A CA2671884A1 (fr) | 2006-12-13 | 2007-12-05 | Media filtrant pour dispositif de filtration des gaz d'echappement d'un moteur diesel, dispositif de filtration mettant en oeuvre un tel media, et ligne d'echappement des gaz d'unmoteur a combustion interne mettant en oeuvre un tel dispositif |
JP2009540819A JP2010512988A (ja) | 2006-12-13 | 2007-12-05 | ディーゼルエンジンの排ガスろ過装置用のろ材、前記ろ材を組み込んだろ過装置、及び前記装置を組み込んだ内燃エンジンの排ガスライン |
EP07871876A EP2121540A2 (fr) | 2006-12-13 | 2007-12-05 | Media filtrant pour dispositif de filtration des gaz d'echappement d'un moteur diesel, dispositif de filtration mettant en oeuvre un tel media, et ligne d'echappement des gaz d'un moteur a combustion interne mettant en oeuvre un tel dispositif |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0655496A FR2909896B1 (fr) | 2006-12-13 | 2006-12-13 | Media filtrant pour dispositif de filtration des gaz d'echappement d'un moteur diesel, dispositif de filtration et ligne d'echappement des gaz d'un moteur a combustion interne le mettant en oeuvre |
FR0655496 | 2006-12-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008078021A2 true WO2008078021A2 (fr) | 2008-07-03 |
WO2008078021A3 WO2008078021A3 (fr) | 2008-11-06 |
Family
ID=38190881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2007/052441 WO2008078021A2 (fr) | 2006-12-13 | 2007-12-05 | Media filtrant pour dispositif de filtration des gaz d'echappement d'un moteur diesel, dispositif de filtration mettant en oeuvre un tel media, et ligne d'echappement des gaz d'un moteur a combustion interne mettant en oeuvre un tel dispositif |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100061899A1 (fr) |
EP (1) | EP2121540A2 (fr) |
JP (1) | JP2010512988A (fr) |
CA (1) | CA2671884A1 (fr) |
FR (1) | FR2909896B1 (fr) |
WO (1) | WO2008078021A2 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016169617A (ja) * | 2015-03-11 | 2016-09-23 | 日本特殊陶業株式会社 | 微粒子捕集システムおよび微粒子捕集装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1375853A1 (fr) * | 2001-03-29 | 2004-01-02 | Ngk Insulators, Ltd. | Structure en nid d'abeilles et son montage |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5582805A (en) * | 1992-12-21 | 1996-12-10 | Toyota Jidosha Kabushiki Kaisha | Electrically heated catalytic apparatus |
US5512251A (en) * | 1994-07-29 | 1996-04-30 | W. R. Grace & Co.-Conn. | Combined electrically heatable converter body |
US5603216A (en) * | 1994-08-02 | 1997-02-18 | Corning Incorporated | By-pass adsorber system |
JP3949265B2 (ja) * | 1998-03-30 | 2007-07-25 | 日本碍子株式会社 | セラミック製ハニカム構造体の組み込み方法及び同方法に使用する保持部材 |
JP4511070B2 (ja) * | 2001-03-29 | 2010-07-28 | 日本碍子株式会社 | ハニカム構造体及びそのアッセンブリ |
-
2006
- 2006-12-13 FR FR0655496A patent/FR2909896B1/fr not_active Expired - Fee Related
-
2007
- 2007-12-05 US US12/518,734 patent/US20100061899A1/en not_active Abandoned
- 2007-12-05 WO PCT/FR2007/052441 patent/WO2008078021A2/fr active Application Filing
- 2007-12-05 EP EP07871876A patent/EP2121540A2/fr not_active Withdrawn
- 2007-12-05 JP JP2009540819A patent/JP2010512988A/ja active Pending
- 2007-12-05 CA CA002671884A patent/CA2671884A1/fr not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1375853A1 (fr) * | 2001-03-29 | 2004-01-02 | Ngk Insulators, Ltd. | Structure en nid d'abeilles et son montage |
Also Published As
Publication number | Publication date |
---|---|
EP2121540A2 (fr) | 2009-11-25 |
FR2909896A1 (fr) | 2008-06-20 |
FR2909896B1 (fr) | 2009-02-06 |
JP2010512988A (ja) | 2010-04-30 |
US20100061899A1 (en) | 2010-03-11 |
WO2008078021A3 (fr) | 2008-11-06 |
CA2671884A1 (fr) | 2008-07-03 |
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