WO2001094761A1 - Blech mit barriere für einen wabenkörper - Google Patents
Blech mit barriere für einen wabenkörper Download PDFInfo
- Publication number
- WO2001094761A1 WO2001094761A1 PCT/EP2001/005686 EP0105686W WO0194761A1 WO 2001094761 A1 WO2001094761 A1 WO 2001094761A1 EP 0105686 W EP0105686 W EP 0105686W WO 0194761 A1 WO0194761 A1 WO 0194761A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- barrier
- face
- honeycomb body
- sheets
- 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.)
- Ceased
Links
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
- 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
- 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
-
- 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
-
- 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
-
- 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)
Definitions
- the invention relates to a sheet, in particular for a honeycomb body of a catalytic converter.
- Such catalytic converters are used, in particular, for cleaning an exhaust gas from a combustion power plant.
- Catalytic converters which are designed with sheet metal layers which are at least partially structured in such a way that an exhaust gas can flow through them.
- the sheet metal layers are stacked and / or looped and arranged in a jacket tube.
- the sheet metal layers are then provided on the end face with an adhesive which, due to a capillary action, penetrates into the interior of such a honeycomb body.
- the adhesive ensures that subsequently applied solder adheres to the sheet layers and a permanent connection of the sheet layers is formed with each other.
- the catalytic converter is to be heated up quickly after a cold start. Rapid heating of the catalytic converter is advantageous because it only begins to chemically convert the pollutants in the exhaust gas from a temperature of approx. 250 ° C.
- the catalytic converters are made with increasingly thin sheets in order to reduce the thermal capacity of the catalytic converter.
- a metallic honeycomb body made of sheet metal is known from EP 0 454 712.
- the sheets are at least partially provided with a macro structure, which determines the honeycomb shape and the mechanical properties of the honeycomb body. Furthermore, the sheets are at least partially provided with a microstructure which run transversely or at an angle to the flow direction of the exhaust gas in order to ensure thorough mixing of the flow. Due to the superimposition of the macrostructure and the microstructure, spaced-apart sheets can occur in the area of the end face of such a metallic honeycomb body.
- a size of the solder grains is therefore necessary which bridges the distances between the individual sheet metal layers.
- the use of large solder grains has the consequence that undesirable chemical reactions of locally concentrated solder with the thin sheets can occur. Corrosion in connection with the high thermal and dynamic stresses on the honeycomb body in an exhaust system can, for example, lead to the sheet metal breaking.
- the object of the present invention is to provide a sheet which is particularly suitable for a honeycomb body of a catalytic converter and which prevents a local concentration of solder during a soldering process and subsequent corrosion of the sheets.
- the sheet according to the invention in particular for a honeycomb body of a catalytic converter, has a first and a second end face and has a length and a width.
- the metal sheet is characterized in that an at least partially parallel barrier to the end face is arranged at least near the first and / or the second end face to specifically prevent a joining connection.
- the barrier is designed in the form of a coating and / or a depression.
- the barrier prevents solder from adhering to the sheet and thus delimits an area from the first and / or the second end face to the barrier in that the sheets are joined together by a joining technique.
- the order of the barrier near the first and / or the second end face depends on the end face from which the sheet is provided with adhesive or solder.
- the barrier is at most 5 mm, preferably at most 3 mm, spaced from the first and / or the second end face. This means that only a small amount of solder adheres to the sheet and the joining of the sheets to one another is limited to a maximum of 5 mm near the at least one end face.
- the barrier extends over the entire width of the sheet. In this way it is ensured that no solder reaches an area that is further away from the corresponding end face than the barrier.
- the barrier is designed in the form of a coating, the coating being an oxide layer.
- the oxide layer prevents solder from sticking.
- Such an oxide layer can be produced, for example, by forming a ceramic layer, heating the sheet in the presence of an oxygen-containing gas or by a chemical reaction.
- the barrier is designed as a coating with a solder stop.
- solder stop is understood to mean, for example, a substance which has ceramic constituents, binders and solvents. The solder stop also prevents the flow of solder and thus forms a barrier.
- At least one microstructure is arranged between the first and / or the second end face and the barrier.
- This microstructure makes contact between adjacent sheets during manufacture of a honeycomb body safely, in particular in the case of honeycomb bodies made of sheet metal with microstructures in the interior of the honeycomb body, capillaries being formed by this microstructure, through which an adhesive flows and ensures adequate soldering agent adhesion.
- the length of the capillary is therefore limited by the design of the microstructure, which ensures a precise delimitation of the connection area.
- the at least one microstructure extends over the entire width of the sheet. It is particularly arranged so that the distance from the corresponding end face is constant over the entire width.
- the at least one microstructure is designed with a thickness that extends from the end face to the barrier, the barrier preferably being a depression.
- the depression interrupts the capillary action of the micro structure during the manufacture of the honeycomb body.
- the depression is accordingly arranged such that it is arranged on the side of the microstructure facing away from the corresponding end face. In this way it is ensured that adjacent metal sheets of a metallic honeycomb body are joined to one another only from the corresponding end face to the barrier.
- the microstructure with a height of 0.015 to 0.03 mm. Since this microstructure influences the flow of exhaust gas during the operation of the catalytic converter, the height of the microstructure should be chosen to be as small as possible in order to prevent a large pressure loss across the catalytic converter.
- the sheet is made with a sheet thickness of less than 0.06 mm, preferably less than 0.03 mm.
- These very thin ones Sheets are particularly sensitive to a concentration of solder, which makes the use of a sheet with a barrier very advantageous.
- a metallic honeycomb body which is particularly suitable for a catalytic converter for cleaning an exhaust gas from an internal combustion engine.
- the metallic honeycomb body has a first end face and a second end face, the honeycomb body containing sheet metal layers which are at least partially structured such that a fluid can flow through the honeycomb body.
- the sheet metal layers have at least one sheet with a barrier, the at least one sheet being arranged such that the barrier is arranged close and essentially parallel to an end face of the honeycomb body.
- the sheets according to the invention are, for example, stacked, wound and then inserted into a jacket tube. All sheets with a barrier are arranged so that they are aligned with the barrier to the end face of the honeycomb body, to which an adhesive and / or the solder is then applied. In this way, a connection area is defined, which is arranged near the face of the honeycomb body to be soldered and is delimited by the barriers of the sheets.
- the sheet metal layers are designed as essentially smooth and corrugated sheets, it is advantageous according to a further exemplary embodiment to design the smooth sheets with a barrier. In this way, the manufacture of the barrier is simplified since it does not have to be formed on a corrugated surface, nor does the barrier have to withstand subsequent shaping to form the corrugated sheets.
- the sheet metal layers are connected to one another by joining technology on at least one end face and in an adjacent connection area, the connection area being separated from the barrier the sheet is limited.
- the joining connection is preferably made using a high-temperature vacuum soldering process.
- a cavity is arranged between the sheets , In this way, capillaries are formed over the entire extent of the connection area by the microstructures, in which capillaries flow and the subsequently applied solder adheres.
- the cavity prevents contact between adjacent sheets, which interrupts the capillary action. This ensures a permanent and limited connection of the sheets to one another.
- Fig. 1 is a schematic representation of a sheet according to the invention
- FIG. 2 shows a perspective illustration of a plurality of metal sheets according to the invention with a microstructure
- FIG 3 shows a detailed view of an embodiment of a metallic honeycomb body.
- the sheet 1 schematically shows an embodiment of the sheet 1 according to the invention.
- the sheet 1 is particularly suitable for a honeycomb body 12 of a catalytic converter.
- the sheet has a length 2 and a width 3 and additionally has a first end face 4 and a second end face 5.
- the sheet 1 has Near the first end face 4 there is a barrier 6 running parallel to the end face 4 to specifically prevent a joining connection.
- the barrier 6 is arranged at a distance 7 from the first end face 4.
- the distance 4 is a maximum of 5 mm, preferably a maximum of 3 mm.
- the barrier 6 extends over the entire width 3 of the sheet 1 and has a coating 8, which is designed, for example, as an oxide layer.
- FIG. 2 shows a perspective view of a plurality of sheet metal layers 15 of a honeycomb body 12 made of smooth 16 and corrugated sheets 17.
- the smooth sheets 16 have a microstructure 9 which is suitable for mixing an exhaust gas flowing through the sheet metal layers.
- a microstructure 9 of a smooth sheet 16 is arranged near the first end face 13 of the honeycomb body, as a result of which a connection area 18 is defined.
- connection area 18 contact of the smooth sheets 16 with the corrugated sheets 17 is ensured.
- Capillaries are formed in which an adhesive applied from the first end face 13 flows. The flow of the adhesive is interrupted when the adhesive has reached the barrier 6.
- Fig. 3 shows schematically a longitudinal section along a contact area of the corrugated sheet 17 and smooth sheet 16, as indicated in Fig. 2 (IH-III).
- the smooth sheet 16 has a plurality of microstructures 9 with a height 21 suitable for mixing the exhaust gas.
- the smooth sheet 16 Near a first end face 4 or the first end face 13, the smooth sheet 16 has a microstructure 9, the thickness 10 of which corresponds to the extent 19 of the connecting region 18 of the corrugated sheet 17 with the smooth sheet 16.
- the microstructure 9 bridges a gap 20 near the first end face 13, which is created, for example, between the corrugated 17 and smooth sheet metal 16 due to further microstructures 9 required for mixing the exhaust gas.
- a depression 23 adjoins the microstructure 9, which in connection with the microstructure 9 forms a cavity 22 between the sheets.
- the barrier 6 designed as a depression 23 thus prevents a joining connection 18 beyond the extension 19. In this way, a fine-grained solder can also be used for sheets with a very small sheet thickness 11 in order
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Catalysts (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002502289A JP2003535977A (ja) | 2000-06-05 | 2001-05-18 | ハニカム体のためのバリヤを備えた金属シート |
| DE10192358T DE10192358B4 (de) | 2000-06-05 | 2001-05-18 | Blech mit Barriere für einen Wabenkörper |
| AU2001270528A AU2001270528A1 (en) | 2000-06-05 | 2001-05-18 | Sheet with barrier for a honeycomb body |
| US10/310,928 US20030086838A1 (en) | 2000-06-05 | 2002-12-05 | Metal sheet with barrier for a honeycomb body and metallic honeycomb body |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10027807A DE10027807A1 (de) | 2000-06-05 | 2000-06-05 | Blech mit Barriere für einen Wabenkörper |
| DE10027807.8 | 2000-06-05 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/310,928 Continuation US20030086838A1 (en) | 2000-06-05 | 2002-12-05 | Metal sheet with barrier for a honeycomb body and metallic honeycomb body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001094761A1 true WO2001094761A1 (de) | 2001-12-13 |
Family
ID=7644756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2001/005686 Ceased WO2001094761A1 (de) | 2000-06-05 | 2001-05-18 | Blech mit barriere für einen wabenkörper |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20030086838A1 (de) |
| JP (1) | JP2003535977A (de) |
| AU (1) | AU2001270528A1 (de) |
| DE (2) | DE10027807A1 (de) |
| TW (1) | TW524924B (de) |
| WO (1) | WO2001094761A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090734A1 (de) * | 2001-05-07 | 2002-11-14 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Blechfolie mit gleitstruktur, wabenkörper und verfahren zu seiner herstellung |
| JP2005522324A (ja) * | 2002-04-18 | 2005-07-28 | エミテック ゲゼルシヤフト フユア エミツシオンス テクノロギー ミツト ベシユレンクテル ハフツング | 波形筒付き触媒担体とその製造方法 |
| US7943096B2 (en) | 2002-04-18 | 2011-05-17 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Calibrated catalyst carrier body with corrugated casing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0136515A2 (de) * | 1983-09-05 | 1985-04-10 | INTERATOM Gesellschaft mit beschränkter Haftung | Metallträgergehäuse für Abgaskatalysatoren mit Zusatzrillen |
| EP0454712A1 (de) * | 1989-01-17 | 1991-11-06 | Emitec Emissionstechnologie | Metallischer wabenkörper. |
| US6036926A (en) * | 1995-10-20 | 2000-03-14 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Honeycomb body of sheet metal layers with reinforcing structures and catalytic reactor having the honeycomb body |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3110102A (en) * | 1958-10-31 | 1963-11-12 | North American Aviation Inc | Method of fusion joining employing stop-off material |
| US3750266A (en) * | 1972-08-25 | 1973-08-07 | Atomic Energy Commission | Flow control of filler alloy |
| US4711009A (en) * | 1986-02-18 | 1987-12-08 | W. R. Grace & Co. | Process for making metal substrate catalytic converter cores |
| DE3860155D1 (de) * | 1987-01-15 | 1990-06-21 | Emitec Emissionstechnologie | Metallischer katalysator-traegerkoerper mit verkuerztem mantelrohr. |
| US5657923A (en) * | 1995-02-01 | 1997-08-19 | W. R. Grace & Co.-Conn. | Brazing of catalyzed converter bodies |
| DE10026697A1 (de) * | 2000-05-30 | 2001-12-06 | Emitec Emissionstechnologie | Gehäuse mit Passivierungsschicht und Verfahren zur Herstellung eines Katalysator-Trägerkörpers mit einem solchen Gehäuse |
| TW587967B (en) * | 2000-04-14 | 2004-05-21 | Emitec Emissionstechnologie | Housing with passivation layer and method for the production of a catalyst support structure with such a housing |
-
2000
- 2000-06-05 DE DE10027807A patent/DE10027807A1/de not_active Withdrawn
-
2001
- 2001-05-09 TW TW090111036A patent/TW524924B/zh not_active IP Right Cessation
- 2001-05-18 DE DE10192358T patent/DE10192358B4/de not_active Expired - Fee Related
- 2001-05-18 AU AU2001270528A patent/AU2001270528A1/en not_active Abandoned
- 2001-05-18 JP JP2002502289A patent/JP2003535977A/ja not_active Withdrawn
- 2001-05-18 WO PCT/EP2001/005686 patent/WO2001094761A1/de not_active Ceased
-
2002
- 2002-12-05 US US10/310,928 patent/US20030086838A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0136515A2 (de) * | 1983-09-05 | 1985-04-10 | INTERATOM Gesellschaft mit beschränkter Haftung | Metallträgergehäuse für Abgaskatalysatoren mit Zusatzrillen |
| EP0454712A1 (de) * | 1989-01-17 | 1991-11-06 | Emitec Emissionstechnologie | Metallischer wabenkörper. |
| US6036926A (en) * | 1995-10-20 | 2000-03-14 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Honeycomb body of sheet metal layers with reinforcing structures and catalytic reactor having the honeycomb body |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090734A1 (de) * | 2001-05-07 | 2002-11-14 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Blechfolie mit gleitstruktur, wabenkörper und verfahren zu seiner herstellung |
| US7101602B2 (en) | 2001-05-07 | 2006-09-05 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Sheet-metal foil with sliding structure, honeycomb body and process for producing the same |
| JP2005522324A (ja) * | 2002-04-18 | 2005-07-28 | エミテック ゲゼルシヤフト フユア エミツシオンス テクノロギー ミツト ベシユレンクテル ハフツング | 波形筒付き触媒担体とその製造方法 |
| US7943096B2 (en) | 2002-04-18 | 2011-05-17 | Emitec Gesellschaft Fuer Emissionstechnologie Mbh | Calibrated catalyst carrier body with corrugated casing |
| JP4751021B2 (ja) * | 2002-04-18 | 2011-08-17 | エミテック ゲゼルシヤフト フユア エミツシオンス テクノロギー ミツト ベシユレンクテル ハフツング | 波形筒付き触媒担体とその製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2001270528A1 (en) | 2001-12-17 |
| TW524924B (en) | 2003-03-21 |
| JP2003535977A (ja) | 2003-12-02 |
| DE10192358D2 (de) | 2003-04-24 |
| DE10192358B4 (de) | 2010-05-12 |
| US20030086838A1 (en) | 2003-05-08 |
| DE10027807A1 (de) | 2002-01-31 |
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