EP1038096B1 - Feuille metallique comportant des trous - Google Patents

Feuille metallique comportant des trous Download PDF

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Publication number
EP1038096B1
EP1038096B1 EP98965782A EP98965782A EP1038096B1 EP 1038096 B1 EP1038096 B1 EP 1038096B1 EP 98965782 A EP98965782 A EP 98965782A EP 98965782 A EP98965782 A EP 98965782A EP 1038096 B1 EP1038096 B1 EP 1038096B1
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EP
European Patent Office
Prior art keywords
structures
metal foil
honeycomb body
opening
body according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98965782A
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German (de)
English (en)
Other versions
EP1038096A1 (fr
Inventor
Wolfgang Maus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitesco Technologies Lohmar Verwaltungs GmbH
Original Assignee
Emitec Gesellschaft fuer Emissionstechnologie mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP1038096A1 publication Critical patent/EP1038096A1/fr
Application granted granted Critical
Publication of EP1038096B1 publication Critical patent/EP1038096B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—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
    • 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
    • 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
    • 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
    • F01N2330/32—Honeycomb supports characterised by their structural details characterised by the shape, form or number of corrugations of plates, sheets or foils
    • F01N2330/321—Honeycomb supports characterised by their structural details characterised by the shape, form or number of corrugations of plates, sheets or foils with two or more different kinds of corrugations in the same substrate
    • 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)
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/1234—Honeycomb, or with grain orientation or elongated elements in defined angular relationship in respective components [e.g., parallel, inter- secting, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12361—All metal or with adjacent metals having aperture or cut
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/1241—Nonplanar uniform thickness or nonlinear uniform diameter [e.g., L-shape]

Definitions

  • the object of the invention relates to a flat structure as well on a honeycomb body.
  • EP-0 454 712 B1 describes one Metal foil, the at least two of one Structures spaced apart from one another, at least partially overlapping having.
  • the overlapping structures are in the form of grooves or grooves educated.
  • the structures have different dimensions.
  • the one Structures form so-called macro structures.
  • Form the other structures so-called microstructures.
  • the microstructures overlay the macrostructures.
  • EP-0 454 712 B1 also discloses a honeycomb body, the one A plurality of channels through which a fluid can flow in a flow direction having.
  • the honeycomb body is made of at least one metal foil educated. The channels are limited by the structures of the metal foil.
  • WO 96/09892 Another embodiment of a metal foil, which in particular is suitable for the construction of a honeycomb body, is by WO 96/09892 known.
  • the metal foil has partially superimposed structures on.
  • This metal foil also has macro structures and micro structures provided in the the structures are introduced.
  • the microstructures run at an angle the macrostructures. From WO 96/09892 it can also be seen that also cross the microstructures. In particular, the microstructures cross on the wave crests of the macrostructures.
  • WO 96/09892 also describes a metallic honeycomb body with a A plurality of flowable for a fluid in a flow direction Channels made of metal foils, at least partially with at least one Channels forming macro structure are provided, which the honeycomb shape of the metallic honeycomb body determined, at least some of the sheets is provided with additional microstructures in some areas, and the Microstructures run at an angle to the direction of flow and at intervals successive, with the microstructures crossing.
  • a metal foil is known from DE 38 44 350 C2, the structures having.
  • the structures are in the form of one level of the metal foil bridges pressed out in the form of bridges.
  • the webs are in longitudinal and parallel zones next to each other arranged.
  • the webs are out of the plane of the metal foil protruding on both sides.
  • the two above Crosspieces are produced in that an initially flat metallic Smooth strip is passed through a pair of embossing cutting rollers through which the Band partially slotted and the webs on either side of the plane of the Tape are pushed out. With such a metal foil takes place no superposition of the structures takes place.
  • Another one The aim of the invention is to provide a honeycomb body that is simpler can be produced.
  • the metal foil according to the invention is characterized in that at least one opening is provided which is formed in an area in which the structures overlap.
  • the overlay areas are used in the manufacture of the structures particularly stresses the metal foil when the Structures are produced by a forming process. Furthermore can it in the field of overlapping structures for training Wrinkles, warps or the like come. This is through the Formation of at least one opening in the area of the overlapping Structures avoided.
  • the formation of structures leads to a metal foil increased stiffness. By providing openings in the areas The overlapping structures are also achieved by the metal foil has a higher flexibility. This will improve Further processing of the metal foil achieved.
  • the opening is preferably formed by at least one slot.
  • an embodiment of the opening is preferred in which at least two slots are provided that meet at an angle, cross in particular. This ensures optimal material utilization reached.
  • the opening is formed by at least one perforation.
  • the introduction of the at least one opening into the metal foil is preferably done before the structures are formed. As a result, a Synchronization of the formation of the openings and the structures be achieved so that the openings always at a predetermined Location of the metal foil are generated.
  • the inventive design of the metal foil also enables an overlay of structures that have a similar geometry, especially if these have relatively large structures within the metal foil form because of the breakthrough the possible problem area the forming process is removed.
  • the metal foil has at least one opening in one area is formed in which the overlapping structures are common theoretical maximum height related to the reference area, the larger is as a maximum height of at least one structure in this area.
  • the entire edge of the opening lies at a level related to the reference height, which is smaller than the theoretical maximum height.
  • the distance of the edge of the opening preferably corresponds to Reference area of the height of the superimposed structure.
  • the metal foil have structures that are essentially are wavy.
  • the wavy structures can intersect at an angle, for example.
  • the metal foil overall can assume a wavy design, this can be due to of the openings wound within the respective structural surfaces become.
  • the wavy structures can also be at an angle abut. Again, through the formation of the breakthroughs Further processing of the metal foil in the overlapping area of the structures simplified.
  • openings it is also possible to form structures that viewed in a longitudinal direction of the structure of different geometry and / or shape, the opening between two neighboring, different structures is formed.
  • the structures can also be designed such that they have a longitudinal extension have, the structures at least two adjacent Have longitudinal sections that are substantially perpendicular to the reference surface are directed in opposite directions. This can make a simpler opposite Corrugation of the metal foil can be achieved.
  • a metal foil proposed in which at least one structure is a primary structure and at least one structure forms a secondary structure, the primary structure has a larger amplitude than the secondary structure.
  • the primary structure can be a macro structure.
  • the secondary structure can be a so-called microstructure.
  • An embodiment of the metal foil is preferred Superimpose secondary structures on the primary structures.
  • a honeycomb body is included a plurality of flowable for a fluid in a flow direction Channels suggested.
  • the honeycomb body is made of at least one metal foil educated. This has at least two spaced from a reference surface, intersecting, at least partially overlapping flat structures on the Limit channels.
  • the honeycomb body is characterized in that in at least one area in which the structures overlap, at least an opening is provided.
  • the opening is preferably formed by at least one slot:
  • the openings are expediently covered by several formed at an angle, in particular intersecting slots.
  • the Opening can also be in the form of at least one perforation his.
  • the honeycomb body there is an opening provided in an area is formed in which the overlapping structures common theoretical maximum height based on the reference area have greater than a height of at least one structure therein Area, wherein the opening has an edge, the distance from the Reference area is smaller than the theoretical maximum height.
  • the honeycomb body has the advantage that the layers of the metal foil are better lie against each other, since the structures formed by the superimposition of the structures Tips as are known for example from WO 96/09892, omitted.
  • suitable connecting means e.g. Pins to connect, the connecting means themselves extend through the openings. This can also be the case with a Embodiment of the honeycomb body can be realized according to claim 12.
  • the honeycomb body is preferably designed such that the structures in the are essentially undulating.
  • At least one structure is a primary structure and at least a structure forms a secondary structure, the primary structure being a has a greater amplitude than the secondary structure.
  • the structures are designed so that the secondary structures on the Overlay primary structures.
  • the primary structure forms a macro structure, while the Secondary structure forms a microstructure.
  • honeycomb body suggested that this by alternating layers of smooth and structured Metal foils is formed, the structured metal foils being a primary structure and optionally have a secondary structure.
  • the honeycomb body is smooth and structured due to alternating layers Metal foils is formed, the smooth metal foils having a secondary structure.
  • FIG. 1 shows schematically and in perspective a metal foil 1 with structures 3, 4.
  • the structures 3, 4 are spaced apart from a reference surface 2 educated.
  • the reference surface 2 is essentially parallel to the metal foil 1 trained in the unstructured state.
  • the reference surface 2 is in the Fig. 1 shown in dashed lines.
  • the structures 3, 4 have one essentially rectangular cross-section.
  • Other cross sections are possible.
  • the design of the cross section can be according to the requirements be formed on the metal foil 1.
  • the metal foil 1 shows that the structures 3, 4 overlap in an area 5.
  • the area 5 is shown in dashed lines.
  • a not opening shown is formed in area 5.
  • the breakthrough is preferably dimensioned such that it at least area 5 corresponds so that the edges 7 lying between the structures 3, 4 are removed, as a result of which the structures 3, 4 are disconnected from one another are.
  • Fig. 2 shows a non-invention related form of a metal foil 1 with a substantially V-shaped cross section Structures 3, 4.
  • the structures have a longitudinal extension. In the area 5 in which the structures 3, 4 would overlap an opening 6 is formed through the structures 3, 4 essentially have no common edge.
  • FIGS 1 and 2 have a essentially the same cross section.
  • Figures 4 and 5 are metal foils 8, 9, which have primary structures 10, 11.
  • the structures 10, 11 form an essentially wavy metal foil 8 and 9, respectively.
  • the structures 10, 11 bound together with a smooth metal foil 12 Channels 13 through which a fluid flows in the direction R through the channels 13.
  • the metal foil 8 is also provided with a secondary structure 14.
  • the secondary structure 14 is intersecting strip-shaped Embossments in the metal foil 8.
  • the amplitude of the secondary structures 14 is smaller than the amplitude of the primary structures 10, 11.
  • the secondary structures 14 cross on wave crests 15 of the primary structures 10, 11. In the area of the intersections of the secondary structures 14 openings 16 are formed.
  • Fig. 5 shows a modification of the arrangement shown in Fig. 4 structured metal foil and a smooth metal foil 12.
  • the metal foil 9 differs from the metal foil 8 shown in FIG. 4 in that that the secondary structures 14 are not only on the wave crests 15 but also in the trough 17 and on the flanks 18 of the primary structures cross.
  • the intersecting secondary structures are at an angle to Flow direction R of a fluid F is formed.
  • In the intersection areas or overlay areas of the secondary structures 14 are openings 16 formed so that the secondary structures 14 no common Have connecting edge.
  • the metal foils can be part of a metallic honeycomb body form.
  • the structured metal foil 21 has a primary structure 19 and one essentially transverse to Secondary structure 20 extending in the longitudinal direction of the primary structure 19. Part of the primary structure 19 and the secondary structure 20 is by a Punching that forms an opening 24 has been removed. dashed 6 is the profile of the secondary structure 20 before the punching process shown.
  • the opening 24 is formed in an area 5, in which the overlapping structures 19, 20 a common theoretical Have height H based on a reference surface 2, which is larger as a height h of the structure 19 in the area 5.
  • the opening 24 has an edge 25, the distance A from the reference surface 2 is smaller than the theoretical height H.
  • the metal foil 22 lies in the area 5 of the opening 24 on the Wall of the primary structure 19 and the secondary structure 20, whereby between the smooth metal foil 22 and the structured metal foil 21 good contact exists, especially for the formation of a solder joint between the structured metal foil 21 and the smooth metal foil 22 suitable is.
  • Metal foils 8, 9 is a good connection with one arranged on them smooth metal foil possible.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Laminated Bodies (AREA)
  • Catalysts (AREA)

Claims (25)

  1. Feuille métallique qui présente au moins deux structures (3, 4, 10, 11, 14, 19, 20), à distance d'une aire de référence (2) et se superposant partiellement, se croisant et fabriquées par une opération de déformation, caractérisée par au moins un percement (6, 16, 24) qui est réalisé dans une zone (5), dans laquelle les structures (3, 4, 10, 11, 14, 19, 20) se superposent.
  2. Feuille métallique selon la revendication 1, caractérisée en ce que le percement (6, 16, 24) est formé par au moins une fente.
  3. Feuille métallique selon la revendication 2, caractérisée en ce que le percement (6, 16, 24) est formé par au moins deux fentes se rencontrant en faisant un angle.
  4. Feuille métallique selon la revendication 1, caractérisée en ce que le percement (6, 16, 24) est formé par au moins une perforation.
  5. Feuille métallique selon l'une des revendications 1 à 4, caractérisée en ce que les structures (3, 4, 10, 11, 14, 19, 20) se superposent en faisant un angle.
  6. Feuille métallique selon la revendication 1, caractérisée par au moins un percement (6, 16, 24) qui est réalisé dans au moins une zone (5), dans laquelle les structures en nappe et se superposant (10, 11, 14, 19, 20) ont par rapport à l'aire de référence (2) une hauteur maximale commune théorique (H) qui est plus élevée qu'une hauteur (h) d'au moins une structure (10, 11, 14, 19, 20) dans cette zone (5), le percement (6, 16, 24) ayant un bord (25) dont la distance (A) jusqu'à l'aire de référence (2) est partout plus courte que la hauteur maximale théorique (H).
  7. Feuille métallique selon l'une des revendications 1 á 6, caractérisée en ce que les structures (3, 4, 10, 11, 14, 19, 20) sont réalisées sensiblement en forme d'ondulations.
  8. Feuille métallique selon la revendication 7, caractérisée en ce qu'au moins une des deux structures (3, 4) a une section transversale sensiblement en forme de V.
  9. Feuille métallique selon l'une des revendications 1 à 8, caractérisée en ce qu'au moins une structure est une structure primaire (10, 11, 19) et au moins une structure une structure secondaire (14, 20), la structure primaire (10, 11, 19) présentant une amplitude plus grande par rapport à la structure secondaire (14, 20).
  10. Feuille métallique selon la revendication 9, caractérisée en ce que des structures secondaires (14) se superposent sur au moins une crête d'onde (15) de la structure primaire (10, 11).
  11. Feuille métallique selon la revendication 10 ou 11, caractérisée en ce que des structures secondaires (14) se superposent dans au moins un creux d'onde (17) de la structure primaire (10, 11).
  12. Corps en nids d'abeilles comprenant une multiplicité de canaux (13), dans lesquels un fluide peut s'écouler dans un sens d'écoulement, qui sont limités par au moins une feuille métallique (8, 9, 12, 22, 23) qui présente au moins deux structures (3, 4, 10, 11, 14, 19, 20) en nappe à distance d'une aire de référence (2) et se superposant au moins partiellement et se croisant, caractérisé par au moins un percement (6, 16, 24) qui est réalisé dans au moins une zone (5), dans laquelle les structures (3, 4, 10, 11, 14, 19, 20) se superposent.
  13. Corps en nids d'abeilles selon la revendication 12, caractérisé en ce que le percement (6, 16, 24) est formé par au moins une fente.
  14. Corps en nids d'abeilles selon la revendication 13, caractérisé en ce que le percement (6, 16, 24) est formé par au moins deux fentes se rencontrant en faisant un angle.
  15. Corps en nids d'abeilles selon la revendication 14, caractérisé en ce que le percement (6, 16, 24) est formé par au moins une perforation.
  16. Corps en nids d'abeilles selon l'une des revendications 12 à 15, caractérisé en ce que les structures (3, 4, 10, 11, 14, 19, 20) se superposent en faisant un angle.
  17. Corps en nids d'abeilles selon la revendication 12, caractérisé par au moins un percement (16, 24) qui est réalisé dans au moins une zone (5), dans laquelle les structures se superposant (10, 11, 14, 19, 20) présentent par rapport à l'aire de référence (2) une hauteur maximale commune théorique (H) qui est plus élevée qu'une hauteur (h) d'au moins une structure (10, 11, 14, 19, 20) dans cette zone (5), le percement (24) présentant un bord (25) dont la distance (A) jusqu'à l'aire de référence (2) est partout plus courte que la hauteur maximale théorique (H).
  18. Corps en nids d'abeilles selon l'une des revendications 12 à 17, caractérisé en ce que les structures (3, 4, 10, 11, 14, 19, 20) sont réalisées sensiblement en forme d'ondulations.
  19. Corps en nids d'abeilles selon la revendication 18, caractérisé en ce qu'au moins une des deux structures (3, 4) a une section transversale sensiblement en forme de V.
  20. Corps en nids d'abeilles selon l'une des revendications 12 à 19, caractérisé en ce qu'au moins une structure est une structure primaire (10, 11, 19) et au moins une structure une structure secondaire (14, 20), la structure primaire (10, 11, 19) présentant une amplitude plus grande par rapport à la structure secondaire (14, 20).
  21. Corps en nids d'abeilles selon la revendication 20, caractérisé en ce que des structures secondaires (14, 20) se superposent sur les structures primaires (10, 11, 19).
  22. Corps en nids d'abeilles selon la revendication 21, caractérisé en ce que des structures secondaires (14, 20) se superposent sur au moins une crête d'onde (15) de la structure primaire (10, 11).
  23. Corps en nids d'abeilles selon la revendication 21 ou 22, caractérisé en ce que des structures secondaires (14, 20) se superposent dans au moins un creux d'onde (17) de la structure primaire (10, 11).
  24. Corps en nids d'abeilles selon l'une des revendications 12 à 23, caractérisé par des couches alternantes de feuilles métalliques lisses (12, 22, 23) et de feuilles métalliques structurées (8, 9, 21), les feuilles métalliques structurées (8, 9, 21) présentant une structure primaire (10, 11) et une structure secondaire (14).
  25. Corps en nids d'abeilles selon l'une des revendications 12 à 24, caractérisé par des couches alternantes de feuilles métalliques lisses (12, 22, 23) et de feuilles métalliques structurées (8, 9, 21), les feuilles métalliques lisses (12, 22, 23) présentant une structure primaire.
EP98965782A 1997-12-12 1998-12-08 Feuille metallique comportant des trous Expired - Lifetime EP1038096B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19755354A DE19755354A1 (de) 1997-12-12 1997-12-12 Metallfolie mit Durchbrechungen
DE19755354 1997-12-12
PCT/EP1998/007954 WO1999031362A1 (fr) 1997-12-12 1998-12-08 Feuille metallique comportant des trous

Publications (2)

Publication Number Publication Date
EP1038096A1 EP1038096A1 (fr) 2000-09-27
EP1038096B1 true EP1038096B1 (fr) 2004-03-17

Family

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Application Number Title Priority Date Filing Date
EP98965782A Expired - Lifetime EP1038096B1 (fr) 1997-12-12 1998-12-08 Feuille metallique comportant des trous

Country Status (10)

Country Link
US (1) US6316121B1 (fr)
EP (1) EP1038096B1 (fr)
JP (1) JP2002508469A (fr)
KR (1) KR100528356B1 (fr)
CN (1) CN1107789C (fr)
AU (1) AU2159299A (fr)
DE (2) DE19755354A1 (fr)
PL (1) PL193856B1 (fr)
RU (1) RU2213231C2 (fr)
WO (1) WO1999031362A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10162161A1 (de) 2001-12-17 2003-07-03 Emitec Emissionstechnologie Vorrichtung und Verfahren zur Schalldämpfung im Abgassystem einer Verbrennungskraftmaschine
WO2004018851A1 (fr) 2002-08-02 2004-03-04 Emitec Gesellschaft Für Emissionstechnologie Mbh Couche metallique a parties presentant des epaisseurs de materiau differentes, son procede de production et corps en nid d'abeille produits au moins partiellement a partir desdites couches metalliques
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WO1999031362A1 (fr) 1999-06-24
CN1281529A (zh) 2001-01-24
AU2159299A (en) 1999-07-05
DE19755354A1 (de) 1999-06-17
CN1107789C (zh) 2003-05-07
DE59811018D1 (de) 2004-04-22
JP2002508469A (ja) 2002-03-19
KR100528356B1 (ko) 2005-11-15
RU2213231C2 (ru) 2003-09-27
PL341477A1 (en) 2001-04-23
PL193856B1 (pl) 2007-03-30
KR20010033060A (ko) 2001-04-25
US6316121B1 (en) 2001-11-13
EP1038096A1 (fr) 2000-09-27

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