US20060272377A1 - Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device - Google Patents
Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device Download PDFInfo
- Publication number
- US20060272377A1 US20060272377A1 US11/505,405 US50540506A US2006272377A1 US 20060272377 A1 US20060272377 A1 US 20060272377A1 US 50540506 A US50540506 A US 50540506A US 2006272377 A1 US2006272377 A1 US 2006272377A1
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- Prior art keywords
- sheet metal
- fin
- exhaust emission
- holes
- aperture
- 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.)
- Abandoned
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 169
- 239000002184 metal Substances 0.000 title claims abstract description 169
- 238000004519 manufacturing process Methods 0.000 title abstract description 34
- 238000005452 bending Methods 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims description 30
- 150000002739 metals Chemical class 0.000 description 52
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 238000005219 brazing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000788 chromium alloy Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical compound [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 iron-chromium-aluminum Chemical compound 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Images
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
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2807—Metal other than sintered metal
- F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
- F01N3/2817—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates only with non-corrugated sheets, plates or foils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/36—Perforating, i.e. punching holes using rotatable work or tool holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/02—Stabbing or piercing, e.g. for making sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
-
- 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
- F01N3/2807—Metal other than sintered metal
- F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
- F01N3/2821—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates the support being provided with means to enhance the mixing process inside the converter, e.g. sheets, plates or foils with protrusions or projections to create turbulence
-
- 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
- F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
- F01N2330/04—Methods of manufacturing
-
- 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
- F01N2330/30—Honeycomb supports characterised by their structural details
- F01N2330/38—Honeycomb supports characterised by their structural details flow channels with means to enhance flow mixing,(e.g. protrusions or projections)
-
- 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
- F01N2330/30—Honeycomb supports characterised by their structural details
- F01N2330/40—Honeycomb supports characterised by their structural details made of a single sheet, foil or plate
Definitions
- the present invention relates to a finned multi-aperture sheet metal most preferably used in a device that purifies exhaust emission exhausted from an internal-combustion engine such as an engine of an automobile, a method of manufacturing the same, a part for exhaust emission control device such as a supporter and a filter that use the finned multi-aperture sheet metal, and a method of manufacturing the part for exhaust emission control device.
- a metal supporter in which in a cylindrical casing made of metal steel such as heat-resistant stainless steel sheet, a circular columnar honeycomb body made of the same metal steel is engaged is used.
- conventional metal supporter is generally manufactured according to such a manner that a honeycomb body manufactured by spirally winding a flat sheet made of a band-like sheet metal and a corrugated sheet obtained by corrugating the flat sheet in a put together state is inserted in a cylindrical metal casing, followed by bonding a contact portion between the flat sheet and the corrugated sheet of a spaced body having a net-like cross section and between a honeycomb body and the casing according to a method such as brazing, welding or diffusion bonding. Furthermore, various kinds of catalysts are coated, and thereby an exhaust emission control device having a purifying function is manufactured.
- a spirally wound honeycomb body does not form a proper circular columnar form and forms a shape (bamboo-shoot like) in which one end side in an axial direction of the honeycomb body projects bamboo-shoot like at a winding center portion and the other end side thereof recedes mortar-like.
- the present invention intends to provide a perforated sheet metal most suitable for forming a spaced body with a net-like cross section of a part for exhaust emission control device, a method of forming the same, a part for exhaust emission control device having the perforated sheet metal and a method of manufacturing the same as one that is less expensive and easy.
- a finned multi-aperture sheet metal according to the present invention is a finned multi-aperture sheet metal in which a plurality of holes is formed in a long flat band-like sheet metal, wherein each of the holes is formed by bending a fin from the sheet metal toward one surface side, or each of the holes is formed by bending a fin from the sheet metal toward any one of surface sides.
- a finned multi-aperture sheet metal manufacturing method is a method of manufacturing a finned multi-aperture sheet metal where at least holes with a fin are formed in a long band-like sheet metal, wherein a plurality of substantially U-shaped cut lines is formed on the sheet metal, each of tongue portions formed based on the respective cut lines is selectively bent to any of both surface sides of the sheet metal to form a fin protruded in a bending direction, and a portion surrounded by the cut lines is opened to form a hole with the fin.
- a finned multi-aperture sheet metal manufacturing method is a method of manufacturing a finned multi-aperture sheet metal where at least holes with a fin are formed in a long band-like sheet metal, wherein a long flat band-like sheet metal is continuously supplied between a perforating roller that is provided on an outer periphery surface with a plurality of projection-like blades that can form substantially U-shaped cut lines on the sheet metal and bend tongue portions formed based on the cut lines outwards and a receiving roller that faces the perforating roller and is provided on an outer periphery surface with a plurality of grooves that can temporally accommodate the projection-like blades formed on the perforating roller and the tongue portions bent by the projection-like blades, substantially U-shaped cut lines are formed on the sheet metal by use of the projection-like blades, each of the tongue portions formed based on the cut lines is bent outward to form a fin, a portion surrounded by the cut line is opened, and thereby a
- a pair of rollers disposed oppositely, on an outer periphery surface of one roller, a plurality of projection-like blades that can form substantially U-shaped cut lines and bend outwards tongue portions formed based on the cut lines is formed; on the outer periphery surface in band, a plurality of grooves that allows temporally accommodating projection-like blades formed on an outer periphery surface of the other roller and the tongue portions bent by the projection-like blades is formed; also on an outer periphery surface of the other roller in band, a plurality of the projection-like blades are formed; and on the outer periphery surface in band, a plurality of grooves that allows temporally accommodating the projection-like blades formed on the outer periphery surface of the one roller and the tongue portions bent by the projection-like blades, a long flat band-like sheet metal is continuously supplied between the pair of rollers, substantially U-shaped cut lines are formed on a sheet metal by the projection-like blades, each of the tongue portions formed based
- a part according to the invention of an exhaust emission control device is characterized by having a spaced body that is formed by spirally winding the finned multi-aperture sheet metal according to the invention and has a net-like cross section in a casing.
- a manufacturing method according to the invention of a part of an exhaust emission control device is a method of manufacturing a part of an exhaust emission control device, the part being formed by having a spaced body that is formed by spirally winding a finned multi-aperture sheet metal and has a net-like cross section in a casing, wherein the finned multi-aperture sheet metal according to the claim 1 or 2 is wound in a spiral having a diameter smaller than an inner diameter of a casing, in this state the winding is loosened in the casing, thereby with tip end portions of fins formed on the finned multi-aperture sheet metal allowing partially coming into contact with an opposing finned multi-aperture sheet metal, and thereby the finned multi-aperture sheet metal is engaged inside of the casing as a spaced body having a net-like cross section.
- a manufacturing method according to the invention of a part of an exhaust emission control device is a method of manufacturing a part of an exhaust emission control device, the part being formed by having a spaced body that is formed by spirally winding a finned multi-aperture sheet metal and has a net-like cross section in a casing, wherein the finned multi-aperture sheet metal according to the claim 1 or 2 is wound in a spiral, at least part of the finned multi-aperture sheet metal or/and part of the spaced body having a net-like cross section is bonded, and thereby a spaced body having a circular columnar net-like cross section is formed.
- FIG. 1 is an enlarged perspective view showing a substantial part of a first embodiment of a finned multi-aperture sheet metal 1 according to the present invention.
- FIG. 2 is an enlarged sectional view showing a substantial part of the finned multi-aperture sheet metal 1 of FIG. 1 .
- FIG. 3 is a plan view of a substantial part showing a configuration of the finned multi-aperture sheet metal 1 of FIG. 1 .
- FIG. 4 is an enlarged explanatory view showing an articulated side of a fin in a hole with a fin.
- FIG. 5 is an enlarged sectional view showing a substantial part of a second embodiment of the finned multi-aperture sheet metal according to the present invention.
- FIG. 6 is an enlarged perspective view of a hole with a fin and a hole without a fin.
- FIG. 7 is an enlarged explanatory view showing a positional relationship between a projection-like blade of a perforating roller, a groove portion of a receiving roller and the finned multi-aperture sheet metal that are used in a method of manufacturing a finned multi-aperture sheet metal according to the invention.
- FIG. 8 is a conceptual diagram of a substantial part of the perforating roller and the receiving roller that are used in a method of manufacturing the finned multi-aperture sheet metal of FIG. 1 .
- FIG. 9 is a conceptual diagram of a substantial part of the perforating roller and the receiving roller that are used in a method of manufacturing the finned multi-aperture sheet metal of FIG. 5 .
- FIG. 10 is an enlarged diagram showing a configuration in one cross section of a spaced body that uses the finned multi-aperture sheet metal of FIG. 1 and has a net-like cross section.
- FIG. 11 is an enlarged diagram showing a configuration in one cross section of a spaced body that uses the finned multi-aperture sheet metal of FIG. 5 and has a net-like cross section.
- a first embodiment relating to the finned multi-aperture sheet metal according to the invention is one in which on a sheet metal formed into a long flat band (including a metal foil. The same applies below), holes with a fin projected on one surface side (hereinafter, referred to as “hole with a fin”) are formed. Owing to a length of the fin, a separation can be freely controlled.
- metal that is used for the sheet metal general-purpose stainless steel expressed by iron-nickel-chromium alloys, iron-nickel alloys, iron-chromium-aluminum alloys or iron-chromium alloys can be applied.
- to form includes, other than a case where for instance, only holes with a fin are arranged with regularity and a case where holes with a fin are formed with some kind or another of regularity in relationship to holes without a fin (hereinafter, referred to as “hole without a fin”), a case where holes are formed at random without any kind of regularity.
- the finned multi-aperture sheet metal 1 according to a first embodiment shown in FIGS. 1 through 3 is later wound in spiral and inserted into a part of an exhaust emission control device described later, wherein in the sheet metal 2 , holes with a fin 3 and holes without a fin 4 are alternately arranged in a winding direction of a spaced body 5 having a net-like cross section (hereinafter, referred to as spaced body 5 . Refer to FIG. 10 ), and thereby a column L is formed.
- a plurality of the columns L is formed in proximity to each other so that, as shown in FIG. 3 , the holes with a fin 3 or the holes without a fin 4 formed in adjacent columns L may not come adjacent each other, and thereby a width R is constituted.
- a plurality of the R's is formed with a predetermined distance apart.
- the hole without a fin 4 in the embodiment is a slender linear hole portion 6 formed so as to be orthogonal to a direction of arrangement of holes.
- a hole portion 7 of the hole with a fin 3 is formed into a substantial rectangle, and the substantially rectangular hole portion 7 is provided with a fin 8 projected on the same surface side of the sheet metal 2 .
- the fin 8 is a planar chip and a surface thereof is formed so as to direct to the direction of winding.
- the fin 8 is formed connected to one side on an up-stream side in the winding direction of four sides that constitute the hole portion 7 .
- the articulated side of the fin 8 may be one side on a downstream side. Furthermore, as shown in, for instance, FIG. 4 , a hole 6 provided with a fin 8 articulated to one side on an upstream side in a winding direction and a hole portion 7 provided with a fin 8 articulated to one side on a downstream side in the winding direction may be regularly arranged on the same column L. Furthermore, the arrangement of the various kinds of holes in the respective columns L may be different.
- a second embodiment of a finned multi-aperture sheet metal 1 relates to one in which holes with a fin 3 projected on any of surfaces of a long flat band-like sheet metal 2 are formed in a line.
- a finned multi-aperture sheet metal 1 is shown in which the hole with a fin 3 and the hole without a fin 4 are alternately arranged in a direction of winding the spaced body 5 , furthermore, each of the holes with a fin 3 has an articulated side of the fin 8 on one side on an upstream side of the hole portion 7 , and a hole with a fin 3 C in which the fin 8 is projected on one surface of the sheet metal 2 and a hole with a fin 3 D projected on the other surface are alternately arranged.
- slender linear holes 6 are bored on a long planar band-like sheet metal 2 .
- substantially U-shaped cut lines are formed, a tongue portion 9 formed based on each of the cut lines is selectively bent to any of surface sides of the sheet metal 2 along a virtual line portion (shown with a dotted line in FIG. 6 ) that connects both end portions of the cut line at the shortest distance to form a fin 8 projected toward the bending direction, and a portion surrounded by the cut line is opened to form a hole 7 of the hole 3 with a fin.
- the finned multi-aperture sheet metal 1 that is shown in the first embodiment of the finned multi-aperture sheet metal 1 and has fins 8 of the holes with a fin 3 projected on the same surface side of the sheet metal 2 can be simply and efficiently formed.
- a finned multi-aperture sheet metal 1 that is shown in the second embodiment of the finned multi-aperture sheet metal 1 and has fins 8 of the holes with a fin 3 projected on both surface sides of the sheet metal 2 can be formed as follows.
- blades for holes with a fin 11 A that can form substantially U-shaped cut lines and bend tongue portions 9 formed based on the cut lines along a virtual line portion that connects both end portions of the cut line at the shortest distance outward of the roller 14 A of the sheet metal 2 , and blades for holes without a fin 11 B that can bore slender linear through holes are disposed in accordance with the arrangement of the holes 6 and 7 on the same column L and the arrangement of the widths R, and on the outer periphery surface, a plurality of grooves 12 that can temporally accommodate the projection-like blades 11 A and 11 B formed on an outer periphery surface of the other roller 14 B and tongue portions 9 bent by use of the blade 11 A for hole with a fin are formed.
- the projection-like blades 11 A and 11 B are formed, and on the outer periphery surface thereof, a plurality of grooves 12 that can temporally accommodate the projection-like blades 11 A and 11 B that are formed on the outer periphery surface of the one roller 11 A and tongue portions 9 bent by use of the blade for hole with fin 11 A is formed.
- the blade for holes without a fin 11 B may be omitted from disposing.
- the finned multi-aperture sheet metal 1 that is shown in the second embodiment of the finned multi-aperture sheet metal 1 and has fins 8 of the holes with a fin 3 projected on both surfaces of the sheet metal 2 can be easily and efficiently formed.
- the finned multi-aperture sheet metal 1 that is shown in the second embodiment of the finned multi-aperture sheet metal 1 and has fins 8 of the holes with a fin 3 projected on both surfaces of the sheet metal 2 can be easily and efficiently formed.
- a part for exhaust emission control device 15 according to the invention is a device mainly used to purify an exhaust gas exhausted from an internal combustion engine of an automobile and so on, that is, as a supporter or a filter.
- a fundamental constitution thereof is, as described in an existing example, a constitution in which a circular columnar spaced body 5 is inserted in a cylindrical casing 16 .
- the part for exhaust emission control device 15 according to the invention has a constitution in which a spaced body 5 formed by use of the finned multi-aperture sheet metal 1 that is manufactured according to the above manufacturing method is inserted in a casing 16 .
- a circular columnar spaced body 5 that is formed by winding spirally only a finned multi-aperture sheet metal 1 in which fins 8 of holes with a fin 3 shown in the first embodiment of a finned multi-aperture sheet metal 1 are projected on the same surface side of a sheet metal 2 is used.
- the spaced body 5 has an exhaust emission flow path 17 that is spirally formed with a body portion of the finned multi-aperture sheet metal 1 as a wall and upstream and downstream sides of which in an exhaust direction of an exhaust emission of an internal combustion engine are opened.
- a plurality of fins 8 of the holes with a fin 3 formed on the finned multi-aperture sheet metal 1 is projected and located so as to divide the spiral exhaust emission flow path 17 .
- a spaced body 5 that is formed by spirally winding only a finned multi-aperture sheet metal 1 in which fins 8 of holes with a fin 3 shown in the second embodiment of a finned multi-aperture sheet metal 1 are projected on both surface sides of a sheet metal 2 is used.
- the spaced body 5 has a exhaust emission flow path 17 that is spirally formed with a body portion of the finned multi-aperture sheet metal 1 as a wall and upstream and downstream sides of which in an exhaust direction of an exhaust emission of an internal combustion engine are opened.
- the exhaust emission flow path 17 similarly to the first embodiment, the flow path is surrounded by a wall made of a body portion of a spirally wound sheet metal 2 , and, in the flow path, a plurality of fins 8 of the holes with a fin 3 formed on the finned multi-aperture sheet metal 1 is projected from both wall sides that constitute the exhaust emission flow path 17 so as to divide the spirally wound exhaust emission flow path 17 .
- an exhaust emission flowed in the part for exhaust emission control device 15 from an upstream side in an exhaust direction of the exhaust emission of an internal combustion engine passes the flow path with the flow path thereof variously branched by a wall made of a body portion of the spirally wound finned multi-aperture sheet metal 1 and fins 8 located inside of the exhaust emission flow path 17 .
- part of the exhaust emission while changing a flow path thereof through an opening of the hole without a fin 4 or the hole with a fin 3 formed on the finned multi-aperture sheet metal 1 to an exhaust emission flow path 17 adjacent through the finned multi-aperture sheet metal 1 , passes the inside of the spaced body 5 and goes through toward a downstream side in an exhaust direction of an exhaust emission.
- the finned multi-aperture sheet metal 1 before inserting in a casing 16 , is a little bit tightly wound into a spiral having a diameter smaller than an inner dimension of the casing 16 . Then, in a predetermined position in the casing 16 , the tight winding is unwound and left free to solidly locate in the casing 16 , and thereby rendering in an engaging state.
- An extent of the winding of the finned multi-aperture sheet metal 1 at this time is set to a winding where when it is released and becomes a free state in the casing 16 , a tip end of the fin 8 comes into contact owing to the elasticity thereof with a back surface of an opposing sheet metal 2 .
- an end side located on an outer periphery of the wound finned multi-aperture sheet metal 1 is beforehand bonded to the sheet metal 2 located one go around inside to form a spaced body 5 , and the spaced body 5 may be inserted in the casing 16 .
- the spaced body 5 when bonding projections are formed along both sides in a winding direction of the finned multi-aperture sheet metal 1 with an appropriate separation to keep constant between finned multi-aperture sheet metals 1 adjacently located in a wound state and an end side located on an outer periphery of the wound finned multi-aperture sheet metal 1 is beforehand bonded to a sheet metal 2 located one go around inside, the sheet metal 2 can be bonded even in the middle of the spiral by use of the bonding projections. Furthermore, in the case of a bonding method such as brazing, a tip end of the fin 8 can be directly bonded to an opposing finned multi-aperture sheet metal 1 .
- the spaced body 5 when inserted in the casing 16 , is preferably bonded between at least part of the sheet metal 2 and an inner surface of the casing 16 by means of brazing, welding and so on.
- a spaced body 5 before being inserted into the casing 16 , being bonded at an end side located on an outer periphery of the spaced body 5 to a sheet metal 2 one go around inside, since owing to the bonding a force with which the sheet metal 2 expands outwards to be free is suppressed; accordingly, in order to adhere the spaced body 5 and the inner surface of the casing 16 , the brazing, the welding and so on may be used to bond.
- the finned multi-aperture sheet metal 1 that is used in the spaced body 5 according to the embodiment, being a flat band-like sheet metal, is easy to wind; accordingly, it has an advantage in that manufacturing cost in the manufacturing process can be reduced.
- the finned multi-aperture sheet metal 1 shown in the second embodiment of the finned multi-aperture sheet metal 1 , put together with a long flat band-like sheet metal 2 , may be spirally wound to form a spaced body 5 .
- the exhaust emission that goes through the spaced body 5 , in the inside surrounded by the long flat band-like sheet metal 2 goes through the flow path variously branched by a wall that is a body portion of the finned multi-aperture sheet metal 1 and fins 8 located inside of the flow path 17 of the exhaust emission.
- the exhaust emission while partially changing the flow path through an opening of a hole without a fin 4 or a hole with a fin 3 formed in the finned multi-aperture sheet metal 1 to the inside of the exhaust emission flow path 17 adjacent through the finned multi-aperture sheet metal 1 , passes through a net structure of the spaced body 5 and goes through toward a downstream side in an exhaust direction of the exhaust emission.
- the present invention may be variously modified as needs arise.
- the brazing is fundamentally unnecessary; however, it can be partially applied to an end surface if necessary.
- a catalyst known ones can be used; one in which a support layer made of, for instance, active alumina supports a catalyst such as platinum and palladium can be used.
- the finned multi-aperture sheet metal according to the invention is the most preferable one as a sheet metal that constitutes a spaced body that is disposed inside a part for exhaust emission control device and has a net-like cross section. That is, in the part for exhaust emission control device having a spaced body that uses the multi-aperture sheet metal and has a net-like cross section, by forming a flow path of exhaust emission with a body portion of a finned multi-aperture sheet metal, and by disposing fins of holes with a fin projected into a flow path of the exhaust emission, including paths going through the holes, the flow paths in the exhaust emission flow path can be variously branched; accordingly, a contact area between the spaced body having the net-like cross section and the exhaust emission can be enlarged and purification of the exhaust emission can be carried out.
- configured part for exhaust emission control device can fundamentally form the spaced body having a net-like cross section with one finned multi-aperture sheet metal; accordingly, it
- the finned multi-aperture sheet metal in which fins of holes with a fin are projected on the same surface side of the sheet metal and the finned multi-aperture sheet metal in which fins of holes with a fin are projected on both surface sides can be simply and efficiently manufactured.
- a finned multi-aperture sheet metal that is used in a spaced body that is inserted in the part for exhaust emission control device and has a net-like cross section is one flat band-like sheet metal, it can be easily wound, the manufacturing cost in the manufacturing process can be reduced, and the conventional problem of winding difference can be overcome.
- the present invention has an effect that a perforated sheet metal most suitable for forming a spaced body that is a part for exhaust emission control device and has a net-like cross section, a method of manufacturing the same, a part for exhaust emission control device that uses the perforated sheet metal and a method of manufacturing the same can be provided as economical and easy one.
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Abstract
A holed sheet metal with multiple holes most suitable for forming a spaced body with a net-like cross section as a part for exhaust emission control device, a method of manufacturing the sheet metal, a part for exhaust emission control device using the sheet metal, and a method of manufacturing the part, wherein a plurality of holes (3) are formed in a long flat-like sheet metal (2) to form the finned sheet metal (1), and die holes (3) in the finned sheet metal (1) are formed by bending fins (8) from the sheet metal (2) in the direction of one surface side of the sheet metal, whereby the sheet metal can be easily provided at a low cost.
Description
- This is a division of parent application Ser. No. 10/497,033 filed May 28, 2004.
- The present invention relates to a finned multi-aperture sheet metal most preferably used in a device that purifies exhaust emission exhausted from an internal-combustion engine such as an engine of an automobile, a method of manufacturing the same, a part for exhaust emission control device such as a supporter and a filter that use the finned multi-aperture sheet metal, and a method of manufacturing the part for exhaust emission control device.
- In an exhaust emission control device of an internal combustion engine such as an engine of an automobile and a power generator, a metal supporter in which in a cylindrical casing made of metal steel such as heat-resistant stainless steel sheet, a circular columnar honeycomb body made of the same metal steel is engaged is used.
- Thus constituted conventional metal supporter is generally manufactured according to such a manner that a honeycomb body manufactured by spirally winding a flat sheet made of a band-like sheet metal and a corrugated sheet obtained by corrugating the flat sheet in a put together state is inserted in a cylindrical metal casing, followed by bonding a contact portion between the flat sheet and the corrugated sheet of a spaced body having a net-like cross section and between a honeycomb body and the casing according to a method such as brazing, welding or diffusion bonding. Furthermore, various kinds of catalysts are coated, and thereby an exhaust emission control device having a purifying function is manufactured.
- However, in a method of manufacturing a thus constituted metal supporter, an operation of winding a flat sheet and a corrugated sheet in a put together state, owing to difference in the bending elasticity of both sheets and a frictional coefficient problem at a contact portion between the flat sheet and the corrugated sheet, cannot be stably carried out; that is, the manufacture is carried out with extreme difficulty.
- For instance, there is a problem (winding difference problem at the time of winding) in that when a force for winding the flat sheet and the corrugated sheet works differently at both end portions in an axial direction of a honeycomb body manufactured as an intermediate part, a spirally wound honeycomb body does not form a proper circular columnar form and forms a shape (bamboo-shoot like) in which one end side in an axial direction of the honeycomb body projects bamboo-shoot like at a winding center portion and the other end side thereof recedes mortar-like.
- The present invention intends to provide a perforated sheet metal most suitable for forming a spaced body with a net-like cross section of a part for exhaust emission control device, a method of forming the same, a part for exhaust emission control device having the perforated sheet metal and a method of manufacturing the same as one that is less expensive and easy.
- In order to accomplish the above object, a finned multi-aperture sheet metal according to the present invention is a finned multi-aperture sheet metal in which a plurality of holes is formed in a long flat band-like sheet metal, wherein each of the holes is formed by bending a fin from the sheet metal toward one surface side, or each of the holes is formed by bending a fin from the sheet metal toward any one of surface sides.
- Furthermore, a finned multi-aperture sheet metal manufacturing method according to the invention is a method of manufacturing a finned multi-aperture sheet metal where at least holes with a fin are formed in a long band-like sheet metal, wherein a plurality of substantially U-shaped cut lines is formed on the sheet metal, each of tongue portions formed based on the respective cut lines is selectively bent to any of both surface sides of the sheet metal to form a fin protruded in a bending direction, and a portion surrounded by the cut lines is opened to form a hole with the fin.
- More specifically, a finned multi-aperture sheet metal manufacturing method according to the invention is a method of manufacturing a finned multi-aperture sheet metal where at least holes with a fin are formed in a long band-like sheet metal, wherein a long flat band-like sheet metal is continuously supplied between a perforating roller that is provided on an outer periphery surface with a plurality of projection-like blades that can form substantially U-shaped cut lines on the sheet metal and bend tongue portions formed based on the cut lines outwards and a receiving roller that faces the perforating roller and is provided on an outer periphery surface with a plurality of grooves that can temporally accommodate the projection-like blades formed on the perforating roller and the tongue portions bent by the projection-like blades, substantially U-shaped cut lines are formed on the sheet metal by use of the projection-like blades, each of the tongue portions formed based on the cut lines is bent outward to form a fin, a portion surrounded by the cut line is opened, and thereby a hole with the fin is formed.
- Alternatively, of a pair of rollers disposed oppositely, on an outer periphery surface of one roller, a plurality of projection-like blades that can form substantially U-shaped cut lines and bend outwards tongue portions formed based on the cut lines is formed; on the outer periphery surface in band, a plurality of grooves that allows temporally accommodating projection-like blades formed on an outer periphery surface of the other roller and the tongue portions bent by the projection-like blades is formed; also on an outer periphery surface of the other roller in band, a plurality of the projection-like blades are formed; and on the outer periphery surface in band, a plurality of grooves that allows temporally accommodating the projection-like blades formed on the outer periphery surface of the one roller and the tongue portions bent by the projection-like blades, a long flat band-like sheet metal is continuously supplied between the pair of rollers, substantially U-shaped cut lines are formed on a sheet metal by the projection-like blades, each of the tongue portions formed based on the cut lines is bent outwards to form a fin, a portion surrounded by the cut line is opened, and thereby a hole with a fin is formed.
- A part according to the invention of an exhaust emission control device is characterized by having a spaced body that is formed by spirally winding the finned multi-aperture sheet metal according to the invention and has a net-like cross section in a casing.
- A manufacturing method according to the invention of a part of an exhaust emission control device is a method of manufacturing a part of an exhaust emission control device, the part being formed by having a spaced body that is formed by spirally winding a finned multi-aperture sheet metal and has a net-like cross section in a casing, wherein the finned multi-aperture sheet metal according to the
claim - Furthermore, a manufacturing method according to the invention of a part of an exhaust emission control device is a method of manufacturing a part of an exhaust emission control device, the part being formed by having a spaced body that is formed by spirally winding a finned multi-aperture sheet metal and has a net-like cross section in a casing, wherein the finned multi-aperture sheet metal according to the
claim -
FIG. 1 is an enlarged perspective view showing a substantial part of a first embodiment of a finnedmulti-aperture sheet metal 1 according to the present invention. -
FIG. 2 is an enlarged sectional view showing a substantial part of the finnedmulti-aperture sheet metal 1 ofFIG. 1 . -
FIG. 3 is a plan view of a substantial part showing a configuration of the finnedmulti-aperture sheet metal 1 ofFIG. 1 . -
FIG. 4 is an enlarged explanatory view showing an articulated side of a fin in a hole with a fin. -
FIG. 5 is an enlarged sectional view showing a substantial part of a second embodiment of the finned multi-aperture sheet metal according to the present invention. -
FIG. 6 is an enlarged perspective view of a hole with a fin and a hole without a fin. -
FIG. 7 is an enlarged explanatory view showing a positional relationship between a projection-like blade of a perforating roller, a groove portion of a receiving roller and the finned multi-aperture sheet metal that are used in a method of manufacturing a finned multi-aperture sheet metal according to the invention. -
FIG. 8 is a conceptual diagram of a substantial part of the perforating roller and the receiving roller that are used in a method of manufacturing the finned multi-aperture sheet metal ofFIG. 1 . -
FIG. 9 is a conceptual diagram of a substantial part of the perforating roller and the receiving roller that are used in a method of manufacturing the finned multi-aperture sheet metal ofFIG. 5 . -
FIG. 10 is an enlarged diagram showing a configuration in one cross section of a spaced body that uses the finned multi-aperture sheet metal ofFIG. 1 and has a net-like cross section. -
FIG. 11 is an enlarged diagram showing a configuration in one cross section of a spaced body that uses the finned multi-aperture sheet metal ofFIG. 5 and has a net-like cross section. - Firstly, embodiments of a finned multi-aperture sheet metal according to the present invention will be explained.
- A first embodiment relating to the finned multi-aperture sheet metal according to the invention is one in which on a sheet metal formed into a long flat band (including a metal foil. The same applies below), holes with a fin projected on one surface side (hereinafter, referred to as “hole with a fin”) are formed. Owing to a length of the fin, a separation can be freely controlled. As metal that is used for the sheet metal, general-purpose stainless steel expressed by iron-nickel-chromium alloys, iron-nickel alloys, iron-chromium-aluminum alloys or iron-chromium alloys can be applied. Here, to form includes, other than a case where for instance, only holes with a fin are arranged with regularity and a case where holes with a fin are formed with some kind or another of regularity in relationship to holes without a fin (hereinafter, referred to as “hole without a fin”), a case where holes are formed at random without any kind of regularity.
- Thus, since a lot of holes such as the holes with a fin or the holes without a fin are disposed, when it is used as an exhaust emission control device, a warming-up process can be made shorter.
- The finned
multi-aperture sheet metal 1 according to a first embodiment shown inFIGS. 1 through 3 is later wound in spiral and inserted into a part of an exhaust emission control device described later, wherein in thesheet metal 2, holes with afin 3 and holes without afin 4 are alternately arranged in a winding direction of a spacedbody 5 having a net-like cross section (hereinafter, referred to as spacedbody 5. Refer toFIG. 10 ), and thereby a column L is formed. A plurality of the columns L is formed in proximity to each other so that, as shown inFIG. 3 , the holes with afin 3 or the holes without afin 4 formed in adjacent columns L may not come adjacent each other, and thereby a width R is constituted. In the flat band-like sheet metal 2, a plurality of the R's is formed with a predetermined distance apart. - Here, the hole without a
fin 4 in the embodiment is a slenderlinear hole portion 6 formed so as to be orthogonal to a direction of arrangement of holes. Ahole portion 7 of the hole with afin 3 is formed into a substantial rectangle, and the substantiallyrectangular hole portion 7 is provided with afin 8 projected on the same surface side of thesheet metal 2. Thefin 8 is a planar chip and a surface thereof is formed so as to direct to the direction of winding. In the embodiment, thefin 8 is formed connected to one side on an up-stream side in the winding direction of four sides that constitute thehole portion 7. - The articulated side of the
fin 8, without restricting to an upstream side in a winding direction of thehole portion 7, may be one side on a downstream side. Furthermore, as shown in, for instance,FIG. 4 , ahole 6 provided with afin 8 articulated to one side on an upstream side in a winding direction and ahole portion 7 provided with afin 8 articulated to one side on a downstream side in the winding direction may be regularly arranged on the same column L. Furthermore, the arrangement of the various kinds of holes in the respective columns L may be different. - Still furthermore, a second embodiment of a finned
multi-aperture sheet metal 1 relates to one in which holes with afin 3 projected on any of surfaces of a long flat band-like sheet metal 2 are formed in a line. - As mentioned above, also in the present embodiment, the holes with a
fin 3 and the holes without afin 4, furthermore, in the holes with afin 3, holes with afin 3A in which a side articulated to thefin 8 is one side on an upstream side of thehole portion 7 and holes with a fin 3B in which a side articulated to thefin 8 is one side on a downstream side of thehole portion 7, and holes with a fin 3C in which thefin 8 is projected on one surface of thesheet metal 2 and holes with a fin 3D in which thefin 8 is projected on the other surface may be arranged with regularity or at random. - In
FIG. 5 , as a finnedmulti-aperture sheet metal 1 according to the second embodiment, a finnedmulti-aperture sheet metal 1 is shown in which the hole with afin 3 and the hole without afin 4 are alternately arranged in a direction of winding thespaced body 5, furthermore, each of the holes with afin 3 has an articulated side of thefin 8 on one side on an upstream side of thehole portion 7, and a hole with a fin 3C in which thefin 8 is projected on one surface of thesheet metal 2 and a hole with a fin 3D projected on the other surface are alternately arranged. - In the next place, a method of manufacturing a finned
multi-aperture sheet metal 1 according to the invention will be explained. - Fundamentally, as shown in
FIG. 6 , as to the holes without afin 4 formed in the finnedmulti-aperture sheet metals 1 in the two embodiments, slenderlinear holes 6 are bored on a long planar band-like sheet metal 2. Furthermore, as to the holes with afin 3, substantially U-shaped cut lines are formed, atongue portion 9 formed based on each of the cut lines is selectively bent to any of surface sides of thesheet metal 2 along a virtual line portion (shown with a dotted line inFIG. 6 ) that connects both end portions of the cut line at the shortest distance to form afin 8 projected toward the bending direction, and a portion surrounded by the cut line is opened to form ahole 7 of thehole 3 with a fin. - More specifically, as shown in
FIGS. 7 and 8 , between aperforating roller 10 that is provided, on an outer periphery surface thereof in accordance with the arrangement of the holes on the same column L and the arrangement of the width R's, with projection-like blades 11 (hereinafter, referred to as blade for hole with fin 11A) that can form the substantially U-shaped cut lines andbend tongue portions 9 formed based on the cut lines along a virtual line portion that connects both end portions of the cut line at the shortest distance toward the outside that is an opposite side to a side on which theperforating roller 10 of thesheet metal 2 is disposed, and projection-like blades 11 (hereinafter, referred to as blade for hole without fin) that can perforate slenderlinear holes 6; and areceiving roller 13 that faces theperforating roller 10 and is provided on an outer periphery surface thereof with a plurality ofgrooves 12 that enable to temporally accommodate the blades for hole withfin 11A formed on the perforatingroller 10, thetongue portions 9 bent by the projection-like blades 11, and the blades for hole without fin 11B, a long flat band-like sheet metal 2 is continuously supplied, and the bothrollers fin 4 are bored in thesheet metal 2. Furthermore, by use of the blades for hole with fin 11A, substantially U-shaped cut lines are formed in thesheet metal 2, each oftongue portions 9 formed based on the cut lines is bent outward of theperforating roller 10 of thesheet metal 2 to form afin 8 and a portion surrounded by the cut line is opened to form ahole 7. - According to the manufacturing method, the finned
multi-aperture sheet metal 1 that is shown in the first embodiment of the finnedmulti-aperture sheet metal 1 and hasfins 8 of the holes with afin 3 projected on the same surface side of thesheet metal 2 can be simply and efficiently formed. - Furthermore, a finned
multi-aperture sheet metal 1 that is shown in the second embodiment of the finnedmulti-aperture sheet metal 1 and hasfins 8 of the holes with afin 3 projected on both surface sides of thesheet metal 2 can be formed as follows. - That is, as shown in
FIG. 9 , of a pair of rollers 14A and 14B that are disposed oppositely, on an outer periphery surface of one roller 14A, blades for holes with a fin 11A that can form substantially U-shaped cut lines andbend tongue portions 9 formed based on the cut lines along a virtual line portion that connects both end portions of the cut line at the shortest distance outward of the roller 14A of thesheet metal 2, and blades for holes without a fin 11B that can bore slender linear through holes are disposed in accordance with the arrangement of theholes grooves 12 that can temporally accommodate the projection-like blades 11A and 11B formed on an outer periphery surface of the other roller 14B andtongue portions 9 bent by use of theblade 11A for hole with a fin are formed. - Furthermore, also on an outer periphery surface of the other roller 14B, the projection-
like blades 11A and 11B are formed, and on the outer periphery surface thereof, a plurality ofgrooves 12 that can temporally accommodate the projection-like blades 11A and 11B that are formed on the outer periphery surface of the oneroller 11A andtongue portions 9 bent by use of the blade for hole withfin 11A is formed. - In any one of the rollers 14A and 14B, the blade for holes without a fin 11B may be omitted from disposing.
- Then, between the pair of rollers 14A and 14B, a long flat band-
like sheet metal 2 is continuously supplied and the both rollers 14A and 14B are driven to rotate. Thereby, by use of the blade for holes without a fin 11B, holes without afin 4 are formed on thesheet metal 2 and by use of the blade for holes with a fin 11A, substantially U-shaped cut lines are formed on thesheet metal 2, and thetongue portions 9 formed based on the cut lines are bent outward of a side where a roller thereon the projection-like blades 11 of thesheet metal 2 are disposed to form fins 8, and portions surrounded by the cut line are opened to form holes. - According to the manufacturing method, the finned
multi-aperture sheet metal 1 that is shown in the second embodiment of the finnedmulti-aperture sheet metal 1 and hasfins 8 of the holes with afin 3 projected on both surfaces of thesheet metal 2 can be easily and efficiently formed. - According to the manufacturing method, the finned
multi-aperture sheet metal 1 that is shown in the second embodiment of the finnedmulti-aperture sheet metal 1 and hasfins 8 of the holes with afin 3 projected on both surfaces of thesheet metal 2 can be easily and efficiently formed. - In the next place, a part for an exhaust emission control device will be explained with reference to
FIGS. 10 and 11 . - A part for exhaust
emission control device 15 according to the invention is a device mainly used to purify an exhaust gas exhausted from an internal combustion engine of an automobile and so on, that is, as a supporter or a filter. A fundamental constitution thereof is, as described in an existing example, a constitution in which a circular columnar spacedbody 5 is inserted in acylindrical casing 16. - The part for exhaust
emission control device 15 according to the invention has a constitution in which a spacedbody 5 formed by use of the finnedmulti-aperture sheet metal 1 that is manufactured according to the above manufacturing method is inserted in acasing 16. - Next, two embodiments will be explained.
- In a first embodiment, as shown in
FIG. 10 , a circular columnar spacedbody 5 that is formed by winding spirally only a finnedmulti-aperture sheet metal 1 in whichfins 8 of holes with afin 3 shown in the first embodiment of a finnedmulti-aperture sheet metal 1 are projected on the same surface side of asheet metal 2 is used. - The spaced
body 5 has an exhaustemission flow path 17 that is spirally formed with a body portion of the finnedmulti-aperture sheet metal 1 as a wall and upstream and downstream sides of which in an exhaust direction of an exhaust emission of an internal combustion engine are opened. Inside of the exhaustemission flow path 17, a plurality offins 8 of the holes with afin 3 formed on the finnedmulti-aperture sheet metal 1 is projected and located so as to divide the spiral exhaustemission flow path 17. - Furthermore, in a second embodiment, as shown in
FIG. 11 , a spacedbody 5 that is formed by spirally winding only a finnedmulti-aperture sheet metal 1 in whichfins 8 of holes with afin 3 shown in the second embodiment of a finnedmulti-aperture sheet metal 1 are projected on both surface sides of asheet metal 2 is used. - The spaced
body 5 has a exhaustemission flow path 17 that is spirally formed with a body portion of the finnedmulti-aperture sheet metal 1 as a wall and upstream and downstream sides of which in an exhaust direction of an exhaust emission of an internal combustion engine are opened. In the exhaustemission flow path 17, similarly to the first embodiment, the flow path is surrounded by a wall made of a body portion of a spirallywound sheet metal 2, and, in the flow path, a plurality offins 8 of the holes with afin 3 formed on the finnedmulti-aperture sheet metal 1 is projected from both wall sides that constitute the exhaustemission flow path 17 so as to divide the spirally wound exhaustemission flow path 17. - In a part for exhaust
emission control device 15 thus constituted, an exhaust emission flowed in the part for exhaustemission control device 15 from an upstream side in an exhaust direction of the exhaust emission of an internal combustion engine passes the flow path with the flow path thereof variously branched by a wall made of a body portion of the spirally wound finnedmulti-aperture sheet metal 1 andfins 8 located inside of the exhaustemission flow path 17. Furthermore, part of the exhaust emission, while changing a flow path thereof through an opening of the hole without afin 4 or the hole with afin 3 formed on the finnedmulti-aperture sheet metal 1 to an exhaustemission flow path 17 adjacent through the finnedmulti-aperture sheet metal 1, passes the inside of the spacedbody 5 and goes through toward a downstream side in an exhaust direction of an exhaust emission. - It goes without saying that from the exhaust emission of the internal combustion engine, during passage of the inside of the part for exhaust
emission control device 15, soot and so on due to, for instance, incomplete combustion, can be supported or filtered. - Subsequently, a manufacturing method according to the invention of a part for exhaust
emission control device 15 will be explained. - Firstly, the finned
multi-aperture sheet metal 1, before inserting in acasing 16, is a little bit tightly wound into a spiral having a diameter smaller than an inner dimension of thecasing 16. Then, in a predetermined position in thecasing 16, the tight winding is unwound and left free to solidly locate in thecasing 16, and thereby rendering in an engaging state. - An extent of the winding of the finned
multi-aperture sheet metal 1 at this time is set to a winding where when it is released and becomes a free state in thecasing 16, a tip end of thefin 8 comes into contact owing to the elasticity thereof with a back surface of an opposingsheet metal 2. - Furthermore, an end side located on an outer periphery of the wound finned
multi-aperture sheet metal 1 is beforehand bonded to thesheet metal 2 located one go around inside to form a spacedbody 5, and the spacedbody 5 may be inserted in thecasing 16. - In the case of a spaced
body 5 being thus constituted by winding only one finnedmulti-aperture sheet metal 1, in comparison with the case where one in which two different sheet metals are put together is spirally wound, a problem of winding difference at the winding that is so far one of problems can be more overcome. That is, owing to the fins on both surfaces, the spacedbody 5 can be inhibited from becoming bamboo-shoot-like. - Furthermore, in the case of a spaced
body 5 being formed with the finnedmulti-aperture sheet metal 1 that is shown in the second embodiment of the finnedmulti-aperture sheet metal 1 and in whichfins 8 of holes with afin 3 are projected on both surface sides of asheet metal 2, in a wound state, some offins 8 projected into the same exhaustemission flow path 17 from each of adjacent finnedmulti-aperture sheet metals 1 collide at tip end portion thereof and bite each other, and thereby a problem of winding difference at the winding that is so far one of problems can be completely overcome. - In the spaced
body 5, when bonding projections are formed along both sides in a winding direction of the finnedmulti-aperture sheet metal 1 with an appropriate separation to keep constant between finnedmulti-aperture sheet metals 1 adjacently located in a wound state and an end side located on an outer periphery of the wound finnedmulti-aperture sheet metal 1 is beforehand bonded to asheet metal 2 located one go around inside, thesheet metal 2 can be bonded even in the middle of the spiral by use of the bonding projections. Furthermore, in the case of a bonding method such as brazing, a tip end of thefin 8 can be directly bonded to an opposing finnedmulti-aperture sheet metal 1. - Furthermore, the spaced
body 5, when inserted in thecasing 16, is preferably bonded between at least part of thesheet metal 2 and an inner surface of thecasing 16 by means of brazing, welding and so on. In particular, in the case of a spacedbody 5, before being inserted into thecasing 16, being bonded at an end side located on an outer periphery of the spacedbody 5 to asheet metal 2 one go around inside, since owing to the bonding a force with which thesheet metal 2 expands outwards to be free is suppressed; accordingly, in order to adhere the spacedbody 5 and the inner surface of thecasing 16, the brazing, the welding and so on may be used to bond. - In the part for exhaust
emission control device 15 like this, in comparison with an existing one in which two metal foils of a flat foil and a corrugated foil are put together and constituted into a spiral, only onemulti-aperture sheet metal 2 is necessary to use; accordingly, material cost can be reduced, resulting in less expensive. Furthermore, the finnedmulti-aperture sheet metal 1 that is used in the spacedbody 5 according to the embodiment, being a flat band-like sheet metal, is easy to wind; accordingly, it has an advantage in that manufacturing cost in the manufacturing process can be reduced. - The finned
multi-aperture sheet metal 1 shown in the second embodiment of the finnedmulti-aperture sheet metal 1, put together with a long flat band-like sheet metal 2, may be spirally wound to form a spacedbody 5. In this case, the exhaust emission that goes through the spacedbody 5, in the inside surrounded by the long flat band-like sheet metal 2, goes through the flow path variously branched by a wall that is a body portion of the finnedmulti-aperture sheet metal 1 andfins 8 located inside of theflow path 17 of the exhaust emission. Furthermore, the exhaust emission, while partially changing the flow path through an opening of a hole without afin 4 or a hole with afin 3 formed in the finnedmulti-aperture sheet metal 1 to the inside of the exhaustemission flow path 17 adjacent through the finnedmulti-aperture sheet metal 1, passes through a net structure of the spacedbody 5 and goes through toward a downstream side in an exhaust direction of the exhaust emission. - The present invention, without restricting the above embodiments, may be variously modified as needs arise. The brazing is fundamentally unnecessary; however, it can be partially applied to an end surface if necessary. Furthermore, as a catalyst, known ones can be used; one in which a support layer made of, for instance, active alumina supports a catalyst such as platinum and palladium can be used.
- As explained above, the finned multi-aperture sheet metal according to the invention is the most preferable one as a sheet metal that constitutes a spaced body that is disposed inside a part for exhaust emission control device and has a net-like cross section. That is, in the part for exhaust emission control device having a spaced body that uses the multi-aperture sheet metal and has a net-like cross section, by forming a flow path of exhaust emission with a body portion of a finned multi-aperture sheet metal, and by disposing fins of holes with a fin projected into a flow path of the exhaust emission, including paths going through the holes, the flow paths in the exhaust emission flow path can be variously branched; accordingly, a contact area between the spaced body having the net-like cross section and the exhaust emission can be enlarged and purification of the exhaust emission can be carried out. Thus configured part for exhaust emission control device can fundamentally form the spaced body having a net-like cross section with one finned multi-aperture sheet metal; accordingly, it is less expensive in comparison with an existing one.
- Furthermore, according to a manufacturing method according to the present invention of a finned multi-aperture sheet metal, the finned multi-aperture sheet metal in which fins of holes with a fin are projected on the same surface side of the sheet metal and the finned multi-aperture sheet metal in which fins of holes with a fin are projected on both surface sides can be simply and efficiently manufactured.
- According to a manufacturing method according to the invention of a part for exhaust emission control device, since a finned multi-aperture sheet metal that is used in a spaced body that is inserted in the part for exhaust emission control device and has a net-like cross section is one flat band-like sheet metal, it can be easily wound, the manufacturing cost in the manufacturing process can be reduced, and the conventional problem of winding difference can be overcome.
- Thus, the present invention has an effect that a perforated sheet metal most suitable for forming a spaced body that is a part for exhaust emission control device and has a net-like cross section, a method of manufacturing the same, a part for exhaust emission control device that uses the perforated sheet metal and a method of manufacturing the same can be provided as economical and easy one.
Claims (2)
1. A finned multi-aperture sheet metal in which a plurality of holes is formed in a long flat band-like sheet metal, wherein each of the holes is formed by bending a fin toward one surface side from the sheet metal, wherein a space body that is formed by spirally winding the finned multi-aperture sheet metal has a net-like cross section inserted in a casing.
2. A finned multi-aperture sheet metal in which a plurality of holes is formed in a long flat band-like sheet metal, wherein each of the holes is formed by bending a fin toward any one of surface sides from the sheet metal, wherein a space body that is formed by spirally winding the finned multi-aperture sheet metal has a net-like cross section inserted in a casing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/505,405 US20060272377A1 (en) | 2001-11-29 | 2006-08-17 | Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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JP2001-364445 | 2001-11-29 | ||
JP2001364445A JP2003166420A (en) | 2001-11-29 | 2001-11-29 | Perforated metal plate with fin, manufacturing method thereof, component for exhaust emission control device using this perforated metal plate with fin, and manufacturing method of component for exhaust emission control device |
PCT/JP2002/011701 WO2003048538A1 (en) | 2001-11-29 | 2002-11-11 | Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device |
US10/497,033 US20050044915A1 (en) | 2001-11-29 | 2002-11-11 | Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device |
US11/505,405 US20060272377A1 (en) | 2001-11-29 | 2006-08-17 | Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2002/011701 Division WO2003048538A1 (en) | 2001-11-29 | 2002-11-11 | Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device |
US10/497,033 Division US20050044915A1 (en) | 2001-11-29 | 2002-11-11 | Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device |
Publications (1)
Publication Number | Publication Date |
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US20060272377A1 true US20060272377A1 (en) | 2006-12-07 |
Family
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US10/497,033 Abandoned US20050044915A1 (en) | 2001-11-29 | 2002-11-11 | Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device |
US11/505,405 Abandoned US20060272377A1 (en) | 2001-11-29 | 2006-08-17 | Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US10/497,033 Abandoned US20050044915A1 (en) | 2001-11-29 | 2002-11-11 | Finned multi-aperture sheet metal, method of manufacturing the sheet metal, part for exhaust emission control device using the sheet metal, and method of manufacturing the part for exhaust emission control device |
Country Status (4)
Country | Link |
---|---|
US (2) | US20050044915A1 (en) |
JP (1) | JP2003166420A (en) |
AU (1) | AU2002365760A1 (en) |
WO (1) | WO2003048538A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004001419A1 (en) * | 2003-05-30 | 2004-12-16 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Metal sheet, e.g. for supporting catalytic converter for treating vehicle exhaust, has slits near center which enclose microstructured area extending below its surface, where slits have recesses at their corners |
US7614201B2 (en) * | 2005-10-04 | 2009-11-10 | Federal-Mogul World Wide, Inc. | Sheet metal joint |
DE102009018825A1 (en) * | 2009-04-24 | 2010-10-28 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Sheet metal layer with anti-diffusion structures and metallic honeycomb body with at least one such sheet metal layer |
US8281475B2 (en) | 2009-10-05 | 2012-10-09 | Federal-Mogul World Wide, Inc. | Sheet metal joint |
JP5951196B2 (en) * | 2011-06-29 | 2016-07-13 | 中国電力株式会社 | Ammonia treatment system |
KR101576127B1 (en) * | 2014-05-29 | 2015-12-09 | 한국제이씨씨(주) | Apparatus for forming current collector |
DE102017209704A1 (en) * | 2017-06-08 | 2018-12-13 | Washtec Holding Gmbh | Device for removing material from a substrate |
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US804799A (en) * | 1904-07-23 | 1905-11-14 | Thomas A Edison | Apparatus for perforating sheet metal. |
US2000208A (en) * | 1931-12-11 | 1935-05-07 | Detroit Gasket & Mfg Company | Sheet metal punch machine |
US3896650A (en) * | 1971-08-04 | 1975-07-29 | Wheeling Pittsburgh Steel Corp | Steel building components with attachment means for wall and floor surface elements and manufacture thereof |
US4152302A (en) * | 1977-07-26 | 1979-05-01 | Suddeutsche Kuhlerfabrik Julius Fr. Behr Gmbh & Co. Kg | Support matrix for a catalytic reactor for scrubbing exhaust gases in internal combustion engines |
US5312694A (en) * | 1991-10-17 | 1994-05-17 | Ishino Corporation Co., Ltd. | Material for catalyzer for purification of exhaust gas and catalyzer using such a material |
US6389694B1 (en) * | 1999-03-26 | 2002-05-21 | Nagoya University | Method of manufacturing metal carrier usable for exhaust gas purifying catalyst |
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JPS63134061A (en) * | 1986-11-26 | 1988-06-06 | Calsonic Corp | Metal honeycomb carrier and its production |
JPH1028872A (en) * | 1996-07-15 | 1998-02-03 | Calsonic Corp | Metal carrier for exhaust gas purifying catalyst and its preparation |
JP4407978B2 (en) * | 1998-02-12 | 2010-02-03 | 新日鉄マテリアルズ株式会社 | Metal carrier for purifying exhaust gas with good reaction efficiency and method for producing the same |
US6389594B1 (en) * | 2001-08-30 | 2002-05-21 | Israel Military Industries Ltd. | Anti-ballistic ceramic articles |
-
2001
- 2001-11-29 JP JP2001364445A patent/JP2003166420A/en active Pending
-
2002
- 2002-11-11 WO PCT/JP2002/011701 patent/WO2003048538A1/en active Application Filing
- 2002-11-11 AU AU2002365760A patent/AU2002365760A1/en not_active Abandoned
- 2002-11-11 US US10/497,033 patent/US20050044915A1/en not_active Abandoned
-
2006
- 2006-08-17 US US11/505,405 patent/US20060272377A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US804799A (en) * | 1904-07-23 | 1905-11-14 | Thomas A Edison | Apparatus for perforating sheet metal. |
US2000208A (en) * | 1931-12-11 | 1935-05-07 | Detroit Gasket & Mfg Company | Sheet metal punch machine |
US3896650A (en) * | 1971-08-04 | 1975-07-29 | Wheeling Pittsburgh Steel Corp | Steel building components with attachment means for wall and floor surface elements and manufacture thereof |
US4152302A (en) * | 1977-07-26 | 1979-05-01 | Suddeutsche Kuhlerfabrik Julius Fr. Behr Gmbh & Co. Kg | Support matrix for a catalytic reactor for scrubbing exhaust gases in internal combustion engines |
US5312694A (en) * | 1991-10-17 | 1994-05-17 | Ishino Corporation Co., Ltd. | Material for catalyzer for purification of exhaust gas and catalyzer using such a material |
US6389694B1 (en) * | 1999-03-26 | 2002-05-21 | Nagoya University | Method of manufacturing metal carrier usable for exhaust gas purifying catalyst |
Also Published As
Publication number | Publication date |
---|---|
JP2003166420A (en) | 2003-06-13 |
US20050044915A1 (en) | 2005-03-03 |
WO2003048538A1 (en) | 2003-06-12 |
AU2002365760A1 (en) | 2003-06-17 |
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