WO2002038922A1 - Convertisseur catalytique et procede de fabrication de celui-ci - Google Patents
Convertisseur catalytique et procede de fabrication de celui-ci Download PDFInfo
- Publication number
- WO2002038922A1 WO2002038922A1 PCT/JP2001/009837 JP0109837W WO0238922A1 WO 2002038922 A1 WO2002038922 A1 WO 2002038922A1 JP 0109837 W JP0109837 W JP 0109837W WO 0238922 A1 WO0238922 A1 WO 0238922A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing material
- holding sealing
- catalyst carrier
- catalytic converter
- holding
- Prior art date
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Classifications
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- 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
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
-
- 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
- F01N3/0211—Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration
-
- 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
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and 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
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/06—Ceramic, e.g. monoliths
-
- 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
- F01N2330/14—Sintered material
-
- 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
-
- 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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
-
- 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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like
-
- 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
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/28—Methods or apparatus for fitting, inserting or repairing different elements by using adhesive material, e.g. cement
-
- 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
- F01N2530/00—Selection of materials for tubes, chambers or housings
- F01N2530/02—Corrosion resistive metals
- F01N2530/04—Steel alloys, e.g. stainless steel
-
- 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 relates to a catalytic converter, a method for manufacturing the same, and a holding sealing material for the catalytic converter.
- the exhaust gas purifying catalytic converter includes a catalyst carrier, a metal shell that covers an outer periphery of the catalyst carrier, and a holding seal material disposed on a gear between the catalyst carrier and the metal shell. .
- a honeycomb-shaped cordierite carrier is used for the catalyst carrier, and a catalyst such as platinum is supported on the cordierite carrier.
- a catalyst converter for a fuel cell including a catalyst carrier, a metal shell that covers an outer periphery of the catalyst carrier, and a holding seal material disposed in a gap between the catalyst carrier and the metal shell is provided. Used. A honeycomb-shaped cordierite carrier is used for the catalyst carrier, and a copper-based catalyst is carried on the cordierite carrier.
- a holding sealing material 21 having a shape as shown in FIG. 20 is manufactured by punching out a matting material 20 made of a ceramic fiber.
- Holding sealing material 2 1 has a convex matching portion 22 formed on a first edge in a longitudinal direction and a concave matching portion 23 formed on a second edge.
- the length of the holding sealing material 21 is slightly shorter than the circumference of the catalyst carrier 24, and its width is substantially equal to the thickness of the catalyst carrier 24.
- the holding sealing material 21 is wound around the outer peripheral surface 24 a of the catalyst carrier 24. At this time, both edges of the holding sealing material 21 are fixed at a plurality of locations using an organic tape 25 such as a bull (see FIG. 21). At this time, the convex mating portion 22 and the concave mating portion 23 engage with each other.
- the catalyst carrier 24 on which the holding sealing material 21 is wound is placed in a metal shell that has been divided into two in advance, and the catalyst carrier 24 is sandwiched between the metal shells.
- This manufacturing method is called a canning method.
- there are other methods such as press-fitting and winding.
- the catalyst carrier 24 is likely to be rattled and damaged, and gas is likely to leak from the sealing portion. Therefore, in order to solve such a problem, it is necessary to increase the packing density by using a thick holding sealing material 21 as a whole. However, in this case, assembling work such as press-fitting and canning becomes difficult, and it becomes difficult to manufacture the catalytic converter.
- a method of preventing the occurrence of wind erosion and improving the durability of the holding sealing material for example, a method of impregnating an inorganic binder into the entire mat material made of ceramic fiber and sintering the mat material is used. It has been proposed to use holding seals.
- a first object of the present invention is to provide a catalyst converter which is inexpensive and can be easily manufactured.
- a second object of the present invention is to provide a catalytic converter which has excellent supportability and sealability and can be easily manufactured.
- a third object of the present invention is to provide a catalytic converter having excellent durability.
- a catalyst carrier having an outer peripheral surface, a metal shell covering the outer peripheral surface of the catalyst carrier, and a holding sealing material disposed between the catalyst carrier and the metal shell.
- a catalytic converter comprising:
- the holding sealing material is a belt-shaped holding sealing material having a width of 12 or less the length of the catalyst carrier, and is wound around the outer peripheral surface of the catalyst carrier one or more times.
- a catalyst carrier a metal shell covering an outer peripheral surface of the catalyst carrier, and a holding seal disposed between the catalyst carrier and the metal shell.
- a catalytic converter comprising:
- the holding sealing material is a belt-shaped holding sealing material having a width of 1/3 or less of the length of the catalyst carrier, and is wound around the outer peripheral surface of the catalyst carrier two or more times.
- a method for manufacturing a catalytic converter is provided. First, a belt-shaped holding sealing material having a width of 1/2 or less of the length of the catalyst carrier is wound around the outer periphery of the catalyst carrier one or more times and fixed. Next, touch the holding seal forest The medium carrier is housed in a cylindrical metal seal.
- a catalytic converter holding seal material disposed between a catalyst carrier having an outer peripheral surface and a metal shell covering the outer peripheral surface of the catalyst carrier.
- the holding sealing material has a width of not more than 1 to 2 times the length of the catalyst carrier, and has an adhesive layer provided on the surface of the holding sealing material.
- a catalyst carrier having an outer peripheral surface, a metal shell covering the outer peripheral surface of the catalyst carrier, and a holding sealing material disposed between the catalyst carrier and the metal shell.
- a catalytic converter comprising: The holding sealing material is wound on the outer peripheral surface of the catalyst carrier such that the edges of the holding sealing material overlap.
- a catalyst carrier having an outer peripheral surface, a cylindrical metal shell that covers an outer peripheral surface of the catalyst carrier, and a metal shell disposed between the catalyst carrier and the metal shell.
- a catalytic converter comprising a holding seal material is provided.
- the holding sealing material is provided on the surface of the holding sealing material and includes a ridge extending along the circumferential direction of the catalyst carrier.
- a method for manufacturing a catalytic converter First, the holding sealing material is wound around the outer peripheral surface of the catalyst carrier and fixed so that the edges of the holding sealing material overlap. Next, the catalyst carrier around which the holding sealing material is wound is accommodated in the metal shell.
- a catalyst carrier having an outer peripheral surface, a metal shell covering the outer peripheral surface of the catalyst carrier, and a holding sealing material arranged between the catalyst carrier and the metal shell And a catalytic converter comprising:
- the holding sealing material is provided at the gas inflow end of the holding sealing material, and has a portion with a relatively high filling density.
- a catalyst carrier having an outer peripheral surface, a metal shell covering the outer peripheral surface of the catalyst carrier, and a holding sealing material disposed between the catalyst carrier and the metal shell.
- a catalytic converter comprising: The holding sealing material is provided at each of the gas inflow end and the gas outflow end of the holding sealing material, and has a pair of relatively high packing density portions.
- FIG. 1 is a perspective view of a catalytic converter having a holding sealing material according to a first embodiment of the present invention.
- FIG. 3 is a perspective view of a medium carrier.
- FIG. 4 is a perspective view of a catalyst carrier having a holding sealing material according to a second embodiment of the present invention.
- FIG. 5 is a perspective view of a catalyst carrier having a holding sealing material according to a third embodiment of the present invention.
- FIG. 6 is a perspective view of a catalyst carrier having a holding sealing material according to a fourth embodiment of the present invention.
- FIG. 7 is a perspective view of a catalyst carrier having a holding sealing material according to a fifth embodiment of the present invention.
- FIG. 8 is a perspective view of a catalyst carrier having a holding sealing material of a catalytic converter according to a sixth embodiment of the present invention.
- FIG. 9 is a partially enlarged cross-sectional view of a catalyst carrier having the holding sealing material of FIG.
- FIG. 10 is a partial sectional view of a catalytic converter according to a sixth embodiment of the present invention.
- FIG. 11 is a perspective view of a catalyst carrier having a holding sealing material according to a seventh embodiment of the present invention.
- FIG. 12 is a perspective view of a catalyst carrier having a holding sealing material according to an eighth embodiment of the present invention.
- FIG. 13 (a) is a perspective view of a catalyst carrier having a holding sealing material of a catalytic converter according to a ninth embodiment of the present invention.
- FIG. 13B is a perspective view of the holding sealing material.
- FIG. 14 is a sectional view of a catalytic converter according to a ninth embodiment of the present invention.
- FIG. 15 (a) is a perspective view of a catalyst carrier having a holding sealing material according to the tenth embodiment of the present invention
- FIG. 16 (a) is a perspective view of a catalyst carrier having a retained see-through material according to the eleventh embodiment of the present invention
- FIG. 16 (b) is a perspective view of the holding sealing material.
- FIG. 17 is a sectional view of the catalytic converter according to the eleventh embodiment of the present invention.
- FIG. 18 (a) is a perspective view of a catalyst carrier having a holding sealing material according to the 12th embodiment of the present invention.
- FIG. 18 (b) is a perspective view of the holding sealing material.
- FIG. 19 is a sectional view of a catalytic converter according to a 12th embodiment of the present invention.
- FIG. 20 is a perspective view for explaining a method of manufacturing a holding sealing material of a conventional example.
- FIG. 21 is a perspective view of a catalyst carrier having a holding seal material of a conventional example.
- the catalytic converter 1 As shown in FIG. 3, the catalytic converter 1 according to the first embodiment is provided in the body of an automobile in the middle of an exhaust pipe of an engine. Since the distance from the engine to the catalytic converter 1 is relatively short, the catalytic converter 1 is supplied with high-temperature exhaust gas of about 700 ° C. to 900 ° C. Engine in the case of lean-burn engine, the catalyst con perturbation 1 exhaust gas having a high temperature of about 9 0 0 0 C ⁇ 1 0 0 0 ° C is supplied.
- the catalyst carrier 2 is manufactured using a ceramic material represented by cordierite or the like.
- the catalyst carrier 2 is a columnar member having a circular cross section.
- the catalyst carrier 2 is preferably a honeycomb structure having a large number of cells 5 extending along the axial direction.
- a noble metal based catalyst such as platinum or rhodium for purifying exhaust gas components is carried on the cell walls.
- the catalyst carrier 2 besides the cordierite carrier, for example, a honeycomb porous sintered body of silicon carbide, silicon nitride or the like may be used.
- a metal cylindrical member having an O-shaped cross section is used as the metal shell 3.
- a metal material for forming the cylindrical member it is preferable to select a metal having excellent heat resistance and impact resistance (for example, a steel material such as stainless steel).
- a metal having excellent heat resistance and impact resistance for example, a steel material such as stainless steel.
- a metal cylindrical member having a U-shape that is, a metal cylindrical member having one slit (opening) extending along the axial direction
- the catalyst carrier 2 to which the holding sealing material 4 is fixed is accommodated in the metal shell 3, and the metal shell 3 is wound up in this state, and then the open end is joined by welding, bonding, bolting, or the like. Is done. Joining work such as welding, bonding, and bolting is performed even in the case of the canning method.
- the holding sealing material 4 is formed in a mat shape using a heat-resistant inorganic fiber as a main material.
- a heat-resistant inorganic fiber for example, an alumina-silica ceramic fiber is suitable.
- crystalline alumina fiber, silica fiber, rock wool, glass fiber, or carbon fiber may be used.
- the holding sealing material 4 may include an organic binder as an auxiliary material.
- the holding sealing material 4 has an elongated strip shape. As shown in FIGS. 1 and 3, the holding sealing material 4 is spirally and continuously wound around the outer peripheral surface 2 a of the catalyst carrier 2.
- the width W1 of the holding sealing material 4 is constant except for both ends 4a.
- the width W 1 of the holding sheen material 4 is preferably 12 or less of the axial length L 1 of the catalyst carrier 2, more preferably 1 Z 3 or less, and 1/3 to 11 1 Optimal is 0.
- the length of the holding sealing material 4 is longer than the circumference of the catalyst carrier 2.
- the length of the holding seal material 4 is preferably at least twice as long as the circumference, and more preferably at least three times as long as the circumference.
- the holding sealing material 4 can be wound around the outer peripheral surface 2a of the catalyst carrier 2 over a plurality of circumferences.
- the holding sealing material 4 has an adhesive layer 6 formed thereon.
- the adhesive layer 6 for example, it is preferable to use a double-sided tape in which a pressure-sensitive adhesive is applied to both surfaces of a resin substrate.
- a pair of adhesive layers 6 are provided on both edges on one surface of the holding sealing material 4.
- the double-sided tape is provided along the longitudinal direction of the holding sealing material 4 at both edges.
- the adhesive layer 6 may be provided on one entire surface of the holding sealing material 4. However, in terms of low cost, it is more advantageous to provide the adhesive layer 6 only in a part of one surface of the holding sealing material 4.
- the holding seal material 4 The adhesive layer 6 adheres to the outer peripheral surface 2 a of the catalyst carrier 2.
- both ends 4 a of the holding sealing material 4 is smaller than the width of the portion other than the both ends 4 a of the holding sealing material 4. More specifically, both end portions 4a of the holding sealing material 4 are formed by cutting the holding sealing material 4 obliquely and linearly with respect to the longitudinal direction, and are formed narrower toward the distal end. Have been. That is, the holding sealing material '4 has an extremely simple shape with no irregularities formed at both ends and no irregularities.
- an elongated and uniform-width holding sealing material 4 is produced by a known method.
- the holding sealing material 4 may be impregnated with an organic binder if necessary, and the holding sealing material 4 may be further compressed in the thickness direction.
- the organic binder besides latex such as acryl rubber and rubber, polybutyl alcohol and acrylic resin can be used.
- Known methods such as an immersion method, a spray method, and a roll coat method can be used as the impregnation method.
- the elongated and uniform-width holding sealing material 4 thus obtained is stored in a roll form until the winding operation is performed.
- the holding sealing material 4 is pulled out and urged to a predetermined length. At that time, the holding sealing material 4 is cut obliquely so as to form a tapered end 4a toward the tip end, as shown by a chain line in FIG.
- the cutting is not limited to the mold, but may be performed using other means.
- the holding sealing material 4 is spirally and continuously wound around the outer peripheral surface 2 a of the catalyst carrier 2. At this time, the holding sealing material 4 is wound so that the adhesive layer 6 faces the outer peripheral surface 2a. As a result, the holding sealing material 4 is fixed to the outer peripheral surface 2 a of the catalyst carrier 2 by the adhesive layer 6. It is preferable that both ends 4a of the wound holding sealing material 4 be stopped with an organic tape. However, fixing with organic tape is not particularly necessary.
- edges 4b of the holding sealing material 4 do not overlap each other. As shown in FIGS. 1 and 3, in the present embodiment, there is no space between the adjacent edges 4b of the holding sealing material 4, and they are in close contact. The area occupied by the wound portion of the holding sealing material 4 on the outer peripheral surface 2 a of the catalyst carrier 2
- the area covered by the holding seal material 4) is preferably set to about 50% to 100% of the total area of the outer peripheral surface 2a.
- the holding sealing material 4 is preferably wound around at least both end regions of the outer peripheral surface 2a. If the holding sealing material 4 is not provided in such a region, high-temperature exhaust gas flows through the gap and propagates the heat to the metal seal 3. Therefore, the metal shell 3 is likely to be thermally deformed, and the holding ability of the carrier may be reduced. In addition, as a result of the holding seal material 4 being eroded and deteriorated, broken fibers are easily scattered to the outside.
- the bulk density (GBD) of the holding sealing material 4 before assembling is 0. OS g / cmS O. 4 g / cm 3 , and is 0.1 lg / cm 3 to 0.2 g Z cm 3 . Is preferred.
- the packing density of the holding sealing material 4 in the assembled state is preferably 0.1 g cm ⁇ 3 to 0.6 g / cm 3 , and more preferably 0.1 g gcm cmSO 4 gcm 3 .
- the generated bearing pressure may be reduced, so that the catalyst carrier 2 may not be able to be reliably held.
- the bulk density or the packing density is too high, the assembling work may be difficult, and the fibers may be broken and scattered outside.
- the thickness of the holding sealing material 4 before assembling is about 1.1 to 4.0 times, and more preferably about 1.5 to 3.0 times the gap between the catalyst carrier 2 and the metal shell 3. It is desirable to be set. If the thickness is less than 1.1 times, a high support holding property cannot be obtained, and the catalyst support 2 may shift or rattle with respect to the metal shell 3. Of course, in this case, a high sealing property cannot be obtained, so that the leakage of the exhaust gas from the gap tends to occur. On the other hand, if the thickness exceeds 4.0 times, it is difficult to arrange the catalyst carrier 2 on the metal shell 3 especially when the press-fitting method is adopted. Therefore, there is a possibility that improvement in assemblability cannot be achieved.
- cordierite monolith having an outer diameter of 13 3 ⁇ and a length of 10 O mm was used.
- metal shell 3 a cylindrical member made of SUS304 having a thickness of 1.5 mm, an inner diameter of 140 mm, and an O-shaped cross section was used.
- holding seal material 4 a long matte material made of alumina-silicone ceramic fiber impregnated with 5% by weight of a resin binder (latex) was used. Thickness 8 mm retention after impregnated Lumpur material 4, and a bulk density of 0. 1 5 g Bruno c ⁇ 3.
- the width W 1 of the holding seal material 4 was set to about 33 mm, which is about 13 times the axial length L 1 of the catalyst carrier 2.
- the length of the holding sealing material 4 was set to about 130 O mm, which is about three times as large as the circumference of the catalyst carrier 2.
- the number of turns of the holding seal material 4 was set to slightly more than three (see FIG. 1).
- the catalyst carrier 2 around which the holding sealing material 4 was wound and fixed was pressed into the metal shell 3 to obtain the catalytic converter 1. Since the holding sealing material 4 of the first embodiment has a simple shape without a joint portion, a punching operation using a punching die was not required at the time of its production. Therefore, it was possible to manufacture the catalytic converter 1 inexpensively and easily. ,
- the catalytic converter 1 was not only easy to assemble, but also excellent in performance.
- the catalytic converter 1 of the first embodiment can obtain the following effects.
- the belt-shaped holding sealing material 4 is wound around the outer peripheral surface 2 a of the catalyst carrier 2. Therefore, it is possible to use a holding sealing material 4 having a simple shape without a joining portion. Further, a punching operation using a punching die is not required at the time of producing the holding sealing material 4. As a result, inexpensive and easy catalytic converter 1 Can be manufactured.
- the holding sealing material has a width of about 1 to 3 times the axial length L 1 of the catalyst carrier 2, the holding sealing material 4 is used so that the adjacent edges 4 b do not overlap. It can be wound around the outer peripheral surface 2a of the carrier 2 three times or more. In addition, since the holding seal material 4 is wound around the circumference three times, high sealing performance is ensured.
- the holding sealing material 4 is spirally and continuously wound around the outer peripheral surface 2a. Therefore, the number of times that the holding sealing material 4 is manufactured by cutting can be reduced as compared with, for example, a case where the holding sealing material 4 is intermittently wound. Therefore, the workability of the winding work can be further improved.
- Both ends 4a of the holding sealing material 4 are formed narrow. Therefore, when the holding seal material 4 is spirally and continuously wound, the holding seal material 4 is densely wound around the outer peripheral surfaces of both ends of the catalyst carrier 2. For this reason, the sealing performance is further improved.
- the adjacent edges 4b do not overlap each other. Therefore, an increase in the amount of the use of the holding sealing material 4 is prevented, and the cost can be further reduced.
- the holding sealing material 4 is adhered to the outer peripheral surface 2 a via the adhesive layer 6. Therefore, it is not necessary to fix the holding sealing material 4 to the outer peripheral surface 2a using the organic tape, and the workability of the winding operation is further improved as compared with the conventional case.
- the holding sealing material 4 is relatively versatile.
- the holding sealing material 4 is spirally and continuously wound in a state where the adjacent edges 4b do not overlap with each other.
- a fixed interval is maintained between adjacent edges 4b. In other words, when the adjacent edges 4b are not in close contact with each other, the holding sealing material 4 Is wound.
- the usage of the holding sealing material 4 is further reduced as compared with the case where the holding sealing material 4 is wound in a state where the adjacent edge portions 4b are in close contact with each other. For this reason, according to the second embodiment, the cost is further reduced.
- each holding seal member 4 is the same as the circumference of the catalyst carrier 2. Therefore, the total length of the three holding sealing materials 4 is three times the circumference.
- the three holding sealing materials 4 are wound around the outer peripheral surface 2a of the catalyst carrier 2 at a predetermined interval. That is, the three holding sealing materials 4 are wound discontinuously.
- the end 4 a of the holding sealing material 4 is not diagonally cut, but is cut perpendicular to the longitudinal direction of the holding sealing material 4. That is, the holding sealing material 4 is completely equal in width. Therefore, in the third embodiment, the usage amount of the holding sealing material 4 is further reduced and the cost is further reduced as compared with the case where the adjacent edge portions 4b are brought into close contact.
- the width W1 of the holding sealing material 4 is larger than the width of the holding sealing material 4 of the first embodiment.
- the width W 1 of the holding sealing material 4 is about 1 Z 2 of the axial length L 1 of the catalyst carrier 2.
- the length of the holding sealing material 4 is slightly more than twice the circumference of the catalyst carrier 2. Therefore, according to the fourth embodiment, the number of turns around the outer peripheral surface 2a can be as small as two or more.
- the holding sealing material 4 does not have the adhesive layer 6 made of a double-sided tape. Instead, after performing the winding operation, the organic tape 7 is attached to both ends 4 a of the holding sealing material 4. As a result, the holding sealing material 4 is fixed to the outer peripheral surface 2a. Therefore, according to the fifth embodiment, the workability of the winding operation is reduced only by the necessity of sticking the organic tape 7, while the configuration of the holding sealing material 4 is simplified by omitting the adhesive layer 6. Is done. For this reason, the cost of the holding sealing material 4 is further reduced.
- the holding sealing material 104 of the sixth embodiment has a catalyst in a state where the adjacent edges 104 b of the holding sealing material 104 overlap each other. It is wound around the outer peripheral surface 2 a of the carrier 2.
- the overlapping portion of the holding sealing material 104 exists over at least a length of at least one turn of the catalyst carrier, and preferably over a length of at least two turns.
- a substantially annular portion having a high filling density is formed at the time of assembling, so that the O-ring-like structure is arranged on the outer surface of the holding sealing material 104. For this reason, the sealing performance is further improved.
- the width W2 of the overlapping portion of the holding sealing material 104 is preferably smaller than the width W1 of the holding sealing material 104, specifically, preferably about 5 mm to 15 mm.
- the ratio of the thick portion of the holding seal material 104 increases, which may make assembly work difficult.
- the amount of the holding sealing material 104 used increases and the cost increases.
- the holding sealing material 104 cut in the same manner as in the first embodiment is spirally and continuously wound on the outer peripheral surface 2 a of the catalyst carrier 2.
- the holding seal material 104 is wound around the outer circumferential surface 2a such that the adhesive layer 6 faces the outer circumferential surface 2a, and the edges 104b of the holding seal material 104 overlap.
- the holding sealing material 104 is fixed to the outer peripheral surface 2 a of the catalyst carrier 2 and the adjacent edge portion 104 b by the adhesive layer 6.
- a ridge that is, an overlapping portion extending along the circumferential direction of the catalyst carrier 2 is formed on the outer surface of the wound holding sealing material 104.
- the height of the ridge is preferably 1.1 to 2.0 times the thickness of the holding sealing material 104, and 1.5. More preferably, it is twice to 2.0 times.
- the ratio of the height to the thickness is less than 1.1 times, the degree of compression of the ridge becomes too small, and the packing density in the ridge cannot be sufficiently increased. Therefore, it is impossible to sufficiently improve the holding ability and the sealing property of the carrier. Conversely, if the height-to-thickness ratio exceeds 2.0 times, the degree of compression of the ridge becomes too large, and the assembling work may be difficult.
- the thickness of the holding sealing material 104 is 1.1 to 4.0 times the gap between the catalyst carrier 2 and the metal shell 3. It is preferably about 1.5 times, more preferably about 1.5 times to 3.0 times.
- the area occupied by the holding seal material 104 on the outer peripheral surface 2a of the catalyst carrier 2 (the area covered by the holding seal material 104) is 80% to 100% of the total area of the outer peripheral surface 2a. % It is preferred that it is about.
- the packing density of the ridges portions 0 1 ⁇ Bruno (:... 111 3-0 is preferably 6 cm 3, 0 2 g Z More preferably, the packing density is in the range of cm 3 to 0.4 g / cm 3. If the packing density is too low, the generated surface pressure is reduced, so that the catalyst carrier 2 may not be reliably held. If the diameter is too large, the assembling work may be difficult, and the fiber in the ridge may be broken and scattered to the outside.
- the same catalyst carrier 2 and metal shell 3 as in the example of the first embodiment were used.
- the width W 1 of the holding seal material 104 was set to about 35 mm, which is a little over 1 Z 3 of the axial length L 1 of the catalyst carrier 2.
- the winding circumference of the holding sealing material 104 was slightly more than three circumferences (see FIG. 8).
- the overlapping portion of the holding sealing material 104 spirally and continuously wound on the outer peripheral surface 2 a was present over a length of at least two turns of the catalyst carrier 2.
- the width W2 of the overlapping portion was set to about 7 mm. Before being placed in the gap, the height of the ridge was 2.0 times the thickness of the holding sealing material 104.
- the catalyst carrier 2 on which the holding sealing material 104 was wound and fixed was press-fitted into a metal shell 3 to obtain a catalytic converter 101.
- the ridge portion was compressed in the thickness direction, and the packing density of the holding sealing material 104 in the portion was particularly high. That is, the packing density of the ridge portion in a state where the holding sealing material 104 is arranged in the gap is about 0.3 gc iji 3 , and the packing density of the other portions is about 0.15 g Z cm. Was 3 . ,
- the packing density of the holding sealing material 104 is particularly high in the portion. Providing the ridges in this way improves the supportability of the carrier and makes the catalyst carrier 2 less rattled.
- the portion having a high packing density extends along the circumferential direction of the catalyst carrier 2, it is difficult for the exhaust gas to pass therethrough, and the sealing property is improved.
- the entire holding seal material 104 is not set to be thicker, the assembling work is not so difficult, and the catalytic converter 101 can be manufactured easily.
- the holding sealing material 104 is spirally and continuously wound. Therefore, as compared with the case where the holding sealing material 104 is intermittently wound, the number of fixed portions is reduced, and the winding operation is facilitated. It is also advantageous in that it is low cost.
- the width W2 of the overlapping portion is set within a suitable range, the production becomes easy and the cost is improved while sufficiently improving the supportability and the sealing performance of the carrier. Can be prevented from increasing.
- the area ratio between the overlapping portion and the non-overlapping portion is set within a suitable range, the manufacturing becomes easy and the increase in cost can be prevented.
- the holding sealing material 104 Since the holding sealing material 104 has the adhesive layer 6, it can be used without using a tape.
- the holding sealing material 104 can be fixed to the outer peripheral surface 2a. Therefore, the winding work becomes easy. Moreover, if such an adhesive layer 6 is present at least at both edges, the edges 104b can be reliably joined to each other (that is, a ridge portion is formed), and the adjacent edges 104 are formed. A gap is hardly generated between b. .
- the belt-shaped holding seal material 104 can reliably cope with a change in the size / cross-sectional shape of the catalyst carrier 2 and can reliably manufacture a desired catalytic converter 101. it can. Therefore, the holding sealing material 104 is relatively versatile.
- the holding seal material 104 is wound around the outer peripheral surface 2 a of the catalyst carrier 2 such that the edges 104 b of the holding seal material 104 overlap with each other. Therefore, a ridge having a suitable shape can be formed on the outer surface of the holding sealing material 104, though the operation is relatively simple. For this reason, the desired catalytic converter 101 can be obtained easily and reliably.
- each holding sealing material 104 is used.
- the length of each holding sealing material 104 is the same as the circumference of the catalyst carrier 2. Therefore, the total length of the four holding seal materials 104 is four times the circumference of the catalyst carrier 2.
- These holding seal materials 104 are wound around the outer peripheral surface 2 a of the catalyst carrier 2 in order, that is, discontinuously.
- the edges 104b of the holding sealing material 104 partially overlap each other as in the sixth embodiment.
- the end 104 a of the holding sealing material 104 is cut perpendicular to the longitudinal direction of the holding sealing material 104. That is, the holding sealing material 104 is completely equal in width.
- FIG. I a catalytic converter 101 according to an eighth embodiment of the present invention will be described with reference to FIG. I will tell.
- the points different from the sixth embodiment will be mainly described, and the common points will be denoted by the same reference numerals and description thereof will be omitted.
- a holding sealing material 104 having no adhesive layer 6 is used. Instead, after performing the winding operation, the organic tape 7 is attached to both end portions 104 a of the holding see-through material 104. As a result, the holding sealing material 104 is fixed to the outer peripheral surface 2a. Therefore, also in the eighth embodiment, it is possible to obtain the catalytic converter 101 which is excellent in the holding performance and the sealing performance of the carrier and can be easily manufactured. ,
- the configuration of the holding sealing material 104 can be simplified. For this reason, the cost of the holding sealing material 104 is reduced.
- the holding sealing material 4 may be spirally and intermittently wound around the outer peripheral surface 2a.
- the adhesive layer 6 in the holding sealing material 4 is not limited to a double-sided tape.
- an adhesive may be formed by applying an adhesive to the surface of the holding sealing material 4 and drying the adhesive.
- the adhesive layer 6 may be applied to either the holding sealing material 4 or the outer peripheral surface 2a of the catalyst carrier 2 at the time of winding.
- the catalyst converter 201 of the ninth embodiment includes a holding sealing material 204 arranged in a gap between the catalyst carrier 2 and the metal shell 3. .
- the left end of the catalyst carrier 2 is the gas inflow end E1
- the right end is the gas outflow end E2.
- the holding see-through material 204 is a long mat-like material. At one end 204 a (ie, the winding end) of the holding sealing material 204, a convex mating portion 207 is formed, and at the other end 204 b (ie, the winding end), a concave shape is formed. A mating portion 208 is formed. As shown in Fig. 13 (a) and Fig. 14, the holding seal The material 204 is wound around the outer peripheral surface 2 a of the catalyst carrier 2, and the winding ends 20 a and 204 b are fixed by the organic tape 9. At the time of winding, the convex mating portion 207 and the concave mating portion 208 are engaged with each other, and the engaging portion is also fixed by the organic tape 9.
- a thick portion 11 is provided at one end of one side of the holding sealing material 204.
- the thick part 11 is compressed after assembling the holding sealing material 204, and becomes a high filling density part P1.
- the thick portion 11 is formed by attaching the auxiliary holding seal material 13 on the main holding seal material 12.
- the width of the auxiliary holding sealing material 13 is smaller than the width of the main holding sealing material 12.
- the width W1 of the high packing density portion P1 in the holding sealing material 204 is preferably 1/20 to 1/5 times the length 1 of the catalyst carrier 2, and 1/15 to 1 / More preferably, it is 7 times. If the width W1 is less than 1Z20 times the length L1, the length required to delay the progress of wind erosion may not be secured, and the durability may not be sufficiently improved. Conversely, if the width W1 exceeds 15 times the length L1, assembly may become difficult.
- the width W1 of the high filling density portion P1 in the holding sealing material 204 is preferably 5irim to 3 Omm, and 1 Omn! It is more preferably about 2 Omm. If the width W 1 is less than 5 nun, the length required to delay the progress of wind erosion may not be secured, and the durability may not be sufficiently improved. Conversely, if the width W1 exceeds 3 Omm, assembly may become difficult.
- the thickness of the thick portion 11 of the holding sealing material 204 before assembly is preferably 1.1 to 3.0 times the thickness of the main holding sealing material 12, preferably 1.5 times. More preferably, it is 2.5 times.
- the thickness is less than 1.1 times, the density difference between the high packing density part P1 and the low packing density part P2 after assembling becomes small. Conversely, if the thickness exceeds 4.0 times, assembly may become difficult.
- the thickness of the holding sealing material 204 before assembly (the thickness of the main holding sealing material 12) is about 1.1 to 4.0 times the gap between the catalyst carrier 2 and the metal shell 3. And preferably about 1.5 to 3.0 times. No. If the thickness is less than 1.1 times, it may not be possible to obtain a suitable carrier holding property and a sealing property at a gap portion as a whole. If the thickness exceeds 4.0 times, improvement in assemblability may not be achieved.
- the filling of the high packing density portion P 1 density is 0 ⁇ 35 ⁇ Bruno 0 ;; 01 3-0. arbitrary preferred that 50 is gZ cm 3.
- the filling density of the low packing density portion P 2 is less than 0. 20 g / cm 3, even if the provided high packing density portion P 1, sealing of sufficient carrier retention and Giyappu moiety whole May not be obtained. And when the filling density of the low packing density portion P 2 is more than 0. 35 g / "cm 3, when the filling density of the high packing density portion P 1 is less than 0. 35 gZc m 3, the density difference between the two sites ⁇ Packing density If the packing density of the part P 1 exceeds 0.50 g cm 3 , assembly may become difficult.Also, even if assembly is possible, catalyst is supported. May lead to body 2 rupture.
- a mat-like material having a predetermined thickness as a material of the holding sealing material 204 is manufactured by a known method.
- the mat-like material is punched into a predetermined shape using a molding die, whereby the main holding sealing material 12 and the sub-holding sealing material 13 are obtained from one mat-like material.
- the main holding seal material 12 and the sub holding seal material 13 may be separately obtained from mat-like materials having different thicknesses and materials.
- the holding seal material 204 having the thick portion 11 is produced.
- a method of attaching the auxiliary holding seal material 13 on the main holding seal material 12 there is, for example, bonding or sewing.
- the holding sealing material 204 is wound around the outer peripheral surface 2 a of the catalyst carrier 2, and the winding ends 204 a and 204 b are stopped with an organic tape 9, and the holding sealing material 204 is put on the catalyst carrier 2. Fix it. Note that the holding seal material 204 may be fixed using means other than the organic tape 9. After this, press-fit, canon or tighten Thus, a desired catalytic converter 201 is completed.
- a cordierite monolith having an outer diameter of 130 ⁇ and a length of 100mm was used as the catalyst carrier 2.
- a cylindrical member made of SUS304 having a thickness of 1.5 mm, an inner diameter of 140 mm, and an O-shaped cross section was used as the metal shell 3.
- a long mat (8 mm thick) made of alumina-silica ceramic fiber was used as the holding sealing material 204.
- the main holding sealing material 12 and the sub holding sealing material 13 are obtained from the mat-like material, and the main holding sealing material 12 and the sub holding sealing material 13 are adhered to each other with an adhesive, so that the wall thickness is increased.
- a holding sealing material 204 having various parts 11 was produced.
- the width of the main holding sealing material 12 was set to 100 mm, and the width of the sub holding sealing material 13 was set to 100 mm. Therefore, the width W 1 of the thick portion 11 which becomes the high filling density portion P 1 was 10 mm, and the thickness was 16 mm.
- the holding sealing material 204 was wound and fixed to the catalyst carrier 2 with the organic tape 9, and the catalyst carrier 2 was pressed into the metal seal 3 to obtain the catalytic converter 201.
- the catalytic converter 201 could be relatively easily assembled without any particular difficulty.
- the packing density of the low packing density part P2 was 0.20 g cm 3
- the packing density of the high packing density part P 1 was 0.40 g Z cm 3 .
- the catalytic converter 201 of the ninth embodiment can obtain the following effects.
- a portion P1 having a relatively higher filling density than the low filling density portion P2 is provided at the gas inflow end E1 in the holding sealing material 204. Therefore, the progress of wind erosion at the gas inflow end E1 can be delayed. Therefore, the catalyst holding ability of the catalyst carrier 2 and the ⁇ ⁇ ⁇ The sealing performance of the gap is maintained for a long time. Therefore, it is possible to obtain the catalyst converter 201 which is less likely to rattle and break the catalyst carrier 2 and leak of exhaust gas, and has excellent durability.
- the packing density of the low packing density part P2, the packing density of the high packing density part P1, and the ratio of the width W1 to the length L1 of the holding sealing material 204 and the width of the high packing density part P1 are preferable. It is set in the range. For this reason, it is possible to achieve a sufficient improvement in durability while maintaining a suitable assembling property.
- a thick portion 11 is provided at one edge of the holding sealing material 204. Therefore, unlike the conventional holding sealing material in which the entire matte material is impregnated with inorganic pinda and sintered, the production cost is low. In addition, since the holding sealing material 204 has flexibility, it can be easily wound around the outer peripheral surface 2a of the catalyst carrier 2, and is excellent in assemblability.
- FIGS. 15 (a) and 15 (b) a catalytic converter 201 according to a tenth embodiment of the present invention will be described with reference to FIGS. 15 (a) and 15 (b).
- the points different from the ninth embodiment will be mainly described, and the common points will be assigned the same reference numerals and the description thereof will be omitted.
- the gas inflow region 221 at the winding end 204a, the gas inflow region 22 at the winding end 204b, and the convex shape The auxiliary holding sealing material 13 is attached to the gas inflow edge 223 of the part 207. Therefore, after the assembling, the gas inflow regions 221 and 222 and the gas inflow edge 223 are also compressed in the thickness direction to provide the high filling density portion P1.
- the holding sealing material 204 is produced by bonding the sub holding sealing material 13 on the main holding sealing material 12. Therefore, even if the thick portion 11 that is to be the high filling density portion P1 is bent as shown in FIG. 15A, the holding sealing material 204 can be formed relatively easily.
- FIGS. 16 (a), 16 (b) and 17 the points different from the ninth embodiment will be mainly described, and the common points will be denoted by the same reference numerals and the description thereof will be omitted.
- the holding sealing material 204 in the holding sealing material 204, two sub holding sealing materials 13 are mounted on one main holding sealing material 12. . Therefore, thick portions 11 are provided at both end edges of the holding sealing material 204.
- the compression of the two thick portions 11 causes a high filling density portion P 1 at the gas inflow end E 1, in addition to the gas inflow end E 1, which is particularly susceptible to wind erosion ( See Figure 17). Therefore, the progress of wind erosion can be reliably delayed, and a more durable catalytic converter 201 can be obtained.
- the holding sealing material 204 is manufactured by a method different from that of the ninth embodiment and the like. That is, in the holding sealing material 204, a thick portion 11 of twice the thickness of the main holding sealing material 12 is formed by bending the edge of the main holding sealing material 12. . Therefore, even if a separate material corresponding to the auxiliary holding sealing material 13 is not prepared, the holding sealing material 20 having the thick portion 11 using only one main holding sealing material 12 is used. 4 can be formed.
- the holding sealing material 204 is placed with the sub holding sealing material 13 facing the outer peripheral surface 2a. It may be wound.
- the holding seal material 204 of the ninth to twelfth embodiments is not limited.
- a holding seal material having a simple shape without the joining portions 207 and 208 may be used. No. ⁇
- the holding seal material 204 is within the range that does not impair the flexibility, the holding seal material Impregnation of an organic binder as an auxiliary material in 204 is also permitted.
- the first to 12th embodiments may be modified as follows.
- the cross-sectional shape of the catalyst carrier 2 is not limited to a perfect circle, but may be, for example, an ellipse or an ellipse. In this case, the cross-sectional shape of the metal shell 3 may be changed to an ellipse or an ellipse.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60118421T DE60118421T2 (de) | 2000-11-10 | 2001-11-09 | Abgaskatalysator, Verfahren zu seiner Herstellung und Halte-und Dichtungsmaterial für Katalysatoren |
US10/416,340 US7575727B2 (en) | 2000-11-10 | 2001-11-09 | Catalytic converter and method for manufacturing the same |
EP01981059A EP1342888B1 (en) | 2000-11-10 | 2001-11-09 | Catalytic converter and method for manufacture thereof |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000343350A JP4652554B2 (ja) | 2000-11-10 | 2000-11-10 | 触媒コンバータ及びその製造方法 |
JP2000343349A JP4652553B2 (ja) | 2000-11-10 | 2000-11-10 | 触媒コンバータ及びその製造方法 |
JP2000-343350 | 2000-11-10 | ||
JP2000-343352 | 2000-11-10 | ||
JP2000-343349 | 2000-11-10 | ||
JP2000343352A JP4652555B2 (ja) | 2000-11-10 | 2000-11-10 | 触媒コンバータ、触媒コンバータ用保持シール材 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002038922A1 true WO2002038922A1 (fr) | 2002-05-16 |
Family
ID=27345167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/009837 WO2002038922A1 (fr) | 2000-11-10 | 2001-11-09 | Convertisseur catalytique et procede de fabrication de celui-ci |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1342888B1 (ja) |
KR (1) | KR100817862B1 (ja) |
CN (1) | CN1252380C (ja) |
DE (1) | DE60118421T2 (ja) |
WO (1) | WO2002038922A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100684330B1 (ko) | 2006-04-11 | 2007-02-22 | 희성엥겔하드주식회사 | 촉매 다구역을 가지는 촉매컨버터 제조방법 및 장치 |
EP2143902A1 (en) | 2008-07-10 | 2010-01-13 | Ibiden Co., Ltd. | Holding sealing material, exhaust gas purifying apparatus and method for manufacturing exhaust gas purifying apparatus |
EP2319604A1 (en) | 2009-10-09 | 2011-05-11 | Ibiden Co., Ltd. | Honeycomb filter |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070014707A1 (en) * | 2005-07-13 | 2007-01-18 | Schultz Eric C | Retention matting assembly methods |
TWI301169B (en) * | 2005-08-10 | 2008-09-21 | Ibiden Co Ltd | Holding seal member for exhaust gas purifier, exhaust gas purification apparatus employing the same, jig for chamfering holding seal member, and method for manufacturing holding seal member |
WO2008099450A1 (ja) | 2007-02-09 | 2008-08-21 | Ibiden Co., Ltd. | ハニカム構造体および排気ガス処理装置 |
JP5164633B2 (ja) * | 2008-03-27 | 2013-03-21 | イビデン株式会社 | 排気ガス処理装置およびその製造方法 |
JP5261243B2 (ja) † | 2009-03-23 | 2013-08-14 | イビデン株式会社 | 保持シール材の巻き付け方法、及び、排ガス浄化装置の製造方法 |
US8505203B2 (en) * | 2010-09-30 | 2013-08-13 | Tenneco Automotive Operating Company Inc. | Method of installing a longitudinally offset multi-layer mat in an exhaust gas aftertreatment or acoustic device |
US8752290B2 (en) * | 2010-09-30 | 2014-06-17 | Tenneco Automotive Operating Company Inc. | Method of installing a longitudinally offset multi-layer mat in an exhaust gas aftertreatment or acoustic device |
DE102011002681A1 (de) * | 2011-01-14 | 2012-07-19 | J. Eberspächer GmbH & Co. KG | Abgasbehandlungseinrichtung |
CN108729998B (zh) * | 2017-04-17 | 2021-05-04 | 上海汽车集团股份有限公司 | 催化转化器及其组装方法 |
DE102022106603A1 (de) | 2022-03-22 | 2023-09-28 | Purem GmbH | Abgasbehandlungsanordnung |
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- 2001-11-09 CN CNB018034462A patent/CN1252380C/zh not_active Expired - Fee Related
- 2001-11-09 DE DE60118421T patent/DE60118421T2/de not_active Expired - Lifetime
- 2001-11-09 WO PCT/JP2001/009837 patent/WO2002038922A1/ja active IP Right Grant
- 2001-11-09 EP EP01981059A patent/EP1342888B1/en not_active Expired - Lifetime
- 2001-11-09 KR KR1020027008867A patent/KR100817862B1/ko not_active IP Right Cessation
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EP0639701A1 (en) * | 1993-08-20 | 1995-02-22 | Minnesota Mining And Manufacturing Company | Mounting mat with high temperature sealing material |
WO1999040300A1 (de) * | 1998-02-03 | 1999-08-12 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Katalytische abgasreinigungseinrichtung und zugehörige ausgleichsschicht, insbesondere für kraftfahrzeuge |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100684330B1 (ko) | 2006-04-11 | 2007-02-22 | 희성엥겔하드주식회사 | 촉매 다구역을 가지는 촉매컨버터 제조방법 및 장치 |
EP2143902A1 (en) | 2008-07-10 | 2010-01-13 | Ibiden Co., Ltd. | Holding sealing material, exhaust gas purifying apparatus and method for manufacturing exhaust gas purifying apparatus |
US7678345B2 (en) | 2008-07-10 | 2010-03-16 | Ibiden Co., Ltd. | Holding sealing material, exhaust gas purifying apparatus and method for manufacturing exhaust gas purifying apparatus |
EP2319604A1 (en) | 2009-10-09 | 2011-05-11 | Ibiden Co., Ltd. | Honeycomb filter |
US8617476B2 (en) | 2009-10-09 | 2013-12-31 | Ibiden Co., Ltd. | Honeycomb filter and urea SCR device |
DE202010018192U1 (de) | 2009-10-09 | 2014-09-19 | Ibiden Co., Ltd. | Wabenförmiger Filter |
Also Published As
Publication number | Publication date |
---|---|
KR100817862B1 (ko) | 2008-03-31 |
EP1342888A1 (en) | 2003-09-10 |
KR20020076250A (ko) | 2002-10-09 |
DE60118421D1 (de) | 2006-05-18 |
EP1342888B1 (en) | 2006-03-29 |
EP1342888A4 (en) | 2004-06-16 |
CN1394255A (zh) | 2003-01-29 |
DE60118421T2 (de) | 2006-08-17 |
CN1252380C (zh) | 2006-04-19 |
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