CS277579B6 - Process for producing and reinforcing a honeycomb catalyst body serving for exhaust gases purification - Google Patents
Process for producing and reinforcing a honeycomb catalyst body serving for exhaust gases purification Download PDFInfo
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- CS277579B6 CS277579B6 CS887520A CS752088A CS277579B6 CS 277579 B6 CS277579 B6 CS 277579B6 CS 887520 A CS887520 A CS 887520A CS 752088 A CS752088 A CS 752088A CS 277579 B6 CS277579 B6 CS 277579B6
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/024—Honeycomb
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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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/18—Exhaust treating devices having provisions not otherwise provided for for improving rigidity, e.g. by wings, ribs
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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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
Vynález se týká způsobu výroby a zpevnění tělesa voštinového katalyzátoru sloužícího k čištění odpadních plynů, při kterémžto způsobu se srolováním vzájemně na sebe uloženého zvlněného a rovinného foliového svazku vytvoří spirálové voštinové těleso.The present invention relates to a process for the production and consolidation of a honeycomb catalyst body for the purification of waste gases, in which a spiral honeycomb body is formed by rolling up a stacked corrugated and planar film bundle.
Takovéto voštinové těleso je známo např. již z pat. spisu GB č. 2069364. Podle způsobu uvedeného v tomto pat. spise, se nejprve z nepovlečených foliových svazků vyrobí voštinové těleso a potom se na jedné nebo na obou čelních plochách opatří jedním nebo více sváry, které mají zabránit vzájemnému axiálnímu pohybu mezi svinutými foliovými svazky. Při tomto způsobu může být voštinové těleso opatřeno vrstvou ochranného materiálu a katalyzační látkou teprve po svaření, neboť ochranný materiál snižuje elektrickou vodivost a tím snižuje průtok proudu při svařování. Nanáší-li se ochranný materiál až na hotové voštinové těleso, nedochází k jeho rovnoměrnému rozprostření, nýbrž se tento materiál hromadí v prohlubeninách v místech spojení fólií a váže vlastně katalyticky aktivní látku na sebe, takže tato nemůže být efektivně využita, což sebou přináší zvýšení nákladů a zmenšení výkonu.Such a honeycomb body is already known, for example, from pat. GB 2069364. According to the method disclosed in U.S. Pat. BACKGROUND OF THE INVENTION, a honeycomb body is first formed from uncoated film bundles and then one or more welds are provided on one or both faces to prevent relative axial movement between the film foils. In this method, the honeycomb body can be provided with a protective material layer and a catalyst material only after welding, since the protective material reduces the electrical conductivity and thus reduces the welding current flow. If the protective material is applied to the finished honeycomb body, it does not spread evenly, but it accumulates in the depressions at the foil bonding points and actually binds the catalytically active substance to itself so that it cannot be used efficiently, resulting in increased costs and reduce performance.
V pat. spise DE 2924592 je popsán způsob výroby tělesa voštinového katalyzátoru, podle něhož jsou nepovlečený zvlněný a rovinný foliový svazek vzájemně spojeny spájením. Tento způsob má tu nevýhodu, že při pájení se musí používat vysokých teplot, což vede k zeslabení struktury a zhoršení kvality povrchu. Pájení samo jako způsob je drahá záležitost a omezuje možnost výběru materiálu na spájitelně materiály. Takovéto materiály nemusí pak bezpodmínečně patřit k nej lepším materiálům co se týče vhodnosti pro voštinové katalyzátory. Také u tohoto způsobu může být povlečení voštinového tělesa vrstvou ochranného materiálu a katalyticky aktivní látkou provedeno až po vzájemném spojení folií.In Pat. DE 2924592 discloses a method for manufacturing a honeycomb catalyst body according to which uncoated corrugated and planar film bundles are joined together by soldering. This method has the disadvantage that high temperatures have to be used during brazing, which leads to weakening of the structure and deterioration of the surface quality. Soldering itself as a method is expensive and limits the choice of material to solderable materials. Such materials need not necessarily be among the best in terms of suitability for honeycomb catalysts. Also in this method, the coating of the honeycomb body with the layer of protective material and the catalytically active substance can only be carried out after the foils have been joined together.
Ve finské pat. přihlášce č. 861801 je popsán způsob výroby a zpevnění tělesa voštinového katalyzátoru. U tohoto způsobu je zvlněný i rovinný foliový svazek předem opatřený jak vrstvou ochranného materiálu tak katalyzační vrstvou upevněn na centrální ose, tvořené tenkou tyčí, kolem níž se vytváří voštinové těleso požadované velikosti, přičemž na koncích osy jsou upevněny čelní opěry tak, že poněkud zasahují do tělesa a tím zabraňují axiálnímu pohybu folií. U tohoto způsobu zvyšuje centrální osa nebo plech, které zůstávají ve voštinovém tělese, jeho váhu a mimoto je v příčném, průřezu otevřená plocha těles voštinového katalyzátoru poněkud zmenšena díky centrální ose s jejími čelními opěrami.In Finnish Pat. No. 861801 describes a method for manufacturing and strengthening a honeycomb catalyst body. In this method, the corrugated and planar film bundle, pre-coated with both a protective material layer and a catalytic layer, is fixed on a central axis formed by a thin rod around which a honeycomb body of the desired size is formed, with frontal supports fixed to the ends and thus prevent axial movement of the foils. In this method, the central axis or sheet remaining in the honeycomb body increases its weight and, moreover, the transverse cross-sectional area of the honeycomb catalyst bodies increases somewhat due to the central axis with its front supports.
Vynález si klade za úkol navrhnout způsob výroby a zpevnění tělesa voštinového katalyzátoru, který by nevykazoval nedostatky známých způsobů. Podle vynálezu je toho dosaženo v podstatě tím, že rovinný i zvlněný foliový svazek, předem opařené jak vrstvou ochranného materiálu, tak katalyzační vrstvou, se navíjejí kolem osy o určité velikosti tak, že po vyjmutí osy zůstane ve středu voštinového tělesa podélný dutý prostor o požadované velikosti. Potom je voštinové těleso spěchováno do oválného tvaru, a dutý prostor v jeho středu je odstraněn. Potom je skrz voštinové těleso protlačena nebo propěchována vzpěra zabraňující rozpadu voštinového tělesa a vzájemnému drhnutí foliových svazků; takto vznikne stabilnější, pevnější těleso.SUMMARY OF THE INVENTION It is an object of the present invention to provide a process for the production and consolidation of a honeycomb catalyst body which does not have the disadvantages of the known processes. According to the invention, this is achieved essentially in that the planar and corrugated film bundle, pre-scalded with both the protective material layer and the catalyst layer, is wound around an axis of a certain size such that after removal of the axis the longitudinal hollow space remains at the center. sizes. Then the honeycomb body is rushed to an oval shape, and the hollow space in its center is removed. Then, a strut is pushed or rammed through the honeycomb body to prevent disintegration of the honeycomb body and rubbing the film bundles together; this creates a more stable, stronger body.
Podle příkladného provedení vynálezu se naskýtá i možnost navinovat předem potažený rovinný a zvlněný foliový svazek bezprostředně do tvaru tělesa o kulatém průřezu tak, že v jeho středu nevznikne žádný dutý prostor. Potom je skrz těleso protlačena nebo propěchována vzpěra zabraňující rozpadu voštinového tělesa a vzájemnému drhnutí foliových svazků; takto vznikne stabilnější, pevnější těleso.According to an exemplary embodiment of the invention, there is also the possibility of winding a pre-coated planar and corrugated film bundle immediately into the shape of a body having a round cross-section so that no hollow space is created in its center. Then, a strut is forced through or pushed through the body to prevent the honeycomb body from disintegrating and the film bundles from rubbing together; this creates a more stable, stronger body.
Podle jednoho příkladného provedení vynálezu mohou být skrze voštinové těleso protlačeny dvě nebo více vzpěr, které mohou být uspořádány vedle sebe nebo za sebou.According to one exemplary embodiment of the invention, two or more struts may be pushed through the honeycomb body, which may be arranged side by side or one behind the other.
Proražení vzpěr voštinovým tělesem může být provedeno tlakem nebo i nastřelením. Podle jednoho příkladného provedení vynálezu je možno voštinové těleso opatřit předem otvorem odpovídajícím rozměrům vzpěry, například provrtáním, a do tohoto otvoru pak zasunout vzpěru.Piercing of the struts by the honeycomb body can be carried out by pressure or even by shooting. According to an exemplary embodiment of the invention, the honeycomb body can be provided with an opening corresponding to the dimensions of the strut, for example by drilling, and then inserting the strut into the opening.
Vzpěra procházející voštinovým tělesem může mít například kruhový, oválný, čtvercový nebo obdélníkový průřez. Podle vynálezu je délka vzpěry procházející voštinovým tělesem rovna průměru tělesa (u kruhového tělesa), nebo je shodná s výškou tělesa, výhodně je o 1 až 10 mm větší než průměr eventuelně výška voštinového tělesa.The strut extending through the honeycomb body may have, for example, a circular, oval, square or rectangular cross-section. According to the invention, the length of the strut passing through the honeycomb body is equal to the body diameter (for a circular body) or is equal to the body height, preferably 1 to 10 mm larger than the diameter or height of the honeycomb body.
Vzpěra, eventuelně vzpěry, procházející voštinovým tělesem, sestávají s výhodou ze žáruvzdorné oceli.The strut or struts passing through the honeycomb body preferably consist of heat-resistant steel.
Probíhá-li výroba kruhového voštinového tělesa tak, že se rovinná a zvlněná kovová fólie, předem opatřené vrstvou ochranného materiálu a katalyzačni vrstvou, upevní na centrální osu, tvořenou tenkou tyčí nebo plechem ve tvaru U, kolem níž se.pak vytváří kruhové voštinové těleso, je centrální osa použitá jako osa otáčení, ponechána ve voštinovém tělese. Na centrální ose je před navinutím voštinového tělesa navrtán jeden nebo více otvorů a to tak, že po navinutí tělesa jsou jím protlačeny nebo propěchovány vzpěry, přičemž otvor nebo otvory nacházející se na centrální ose jsou proraženy. Tímto způsobem vznikne stabilnější, pevnější voštinové těleso katalyzátoru.When the circular honeycomb body is manufactured by attaching a planar and corrugated metal foil pre-coated with a protective layer and a catalyst layer to a central axis formed by a thin rod or U-shaped sheet around which a circular honeycomb body is formed, is the central axis used as the axis of rotation, left in the honeycomb body. One or more holes are drilled on the central axis prior to winding the honeycomb body such that the struts are pushed or pierced after winding the body, and the hole or holes located on the central axis are pierced. In this way, a more stable, stronger honeycomb catalyst body is formed.
Vynález je dále popsán s odvoláním na přiložené výkresy, na nichž značí:The invention is further described with reference to the accompanying drawings, in which:
obr. 1 nárys výhodného provedení podle vynálezu obr. 2 bokorys výhodného provedení podle vynálezu.FIG. 1 is a side elevational view of a preferred embodiment of the present invention;
Na obr. 1 je znázorněno voštinové těleso (1) navinuté z na sebe uloženého zvlněného (2) a rovinného (3) foliového svazku, spěchované po navinutí do tzv. race-track tvaru, načež je tělesem protlačena vzpěra (4).Fig. 1 shows a honeycomb body (1) wound from superimposed corrugated (2) and planar (3) foil bundles hastened after winding into a so-called race-track shape, whereupon the strut (4) is pushed through the body.
Na obr. 2 je znázorněno kruhové voštinové těleso (1) navinuté ze vzájemně na sebe uloženého rovinného (3) a zvlněného (2) foliového svazku, jímž je propěchována vzpěra (4) jejíž délka je o něco větší než průměr voštinového tělesa.Fig. 2 shows an annular honeycomb body (1) wound from a stacked planar (3) and corrugated (2) stacked foil, through which a strut (4) whose length is slightly larger than the diameter of the honeycomb body is punched.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI875045A FI78161C (en) | 1987-11-16 | 1987-11-16 | Process for producing and amplifying a catalytic cell structure useful for purification of exhaust gases |
Publications (2)
Publication Number | Publication Date |
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CS752088A3 CS752088A3 (en) | 1992-08-12 |
CS277579B6 true CS277579B6 (en) | 1993-03-17 |
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ID=8525420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CS887520A CS277579B6 (en) | 1987-11-16 | 1988-11-16 | Process for producing and reinforcing a honeycomb catalyst body serving for exhaust gases purification |
Country Status (21)
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JP (1) | JPH01155948A (en) |
KR (1) | KR890008432A (en) |
AT (1) | AT392750B (en) |
AU (1) | AU606226B2 (en) |
BE (1) | BE1002482A3 (en) |
BR (1) | BR8805954A (en) |
CA (1) | CA1323752C (en) |
CH (1) | CH675750A5 (en) |
CS (1) | CS277579B6 (en) |
DD (1) | DD283667A5 (en) |
DE (1) | DE3838295C2 (en) |
ES (1) | ES2011406A6 (en) |
FI (1) | FI78161C (en) |
FR (1) | FR2623244B1 (en) |
GB (1) | GB2212414B (en) |
IT (1) | IT8822586A0 (en) |
NL (1) | NL8802793A (en) |
PL (1) | PL159280B1 (en) |
RU (1) | RU1837962C (en) |
SE (1) | SE468323B (en) |
YU (1) | YU207488A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4418630A1 (en) * | 1994-05-27 | 1995-11-30 | Emitec Emissionstechnologie | Honeycomb structure fabricated from 2 materials of different thicknesses |
US5846495A (en) * | 1995-07-12 | 1998-12-08 | Engelhard Corporation | Structure for converter body |
DE102004024685A1 (en) * | 2004-05-19 | 2005-12-15 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Catalyst carrier body for a close-coupled catalytic converter |
Family Cites Families (15)
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GB753658A (en) * | 1953-06-19 | 1956-07-25 | Havilland Engine Co Ltd | Metal catalyst packs |
GB1531134A (en) * | 1975-08-20 | 1978-11-01 | Atomic Energy Authority Uk | Methods of fabricating bodies and to bodies so fabricated |
DE2733640C3 (en) * | 1977-07-26 | 1981-04-30 | Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart | Matrix for a catalytic reactor for exhaust gas cleaning in internal combustion engines |
DE2746182A1 (en) * | 1977-10-14 | 1979-04-19 | Volkswagenwerk Ag | Cylindrical catalyst carrier retention - using transverse hole and welded bolt to join carrier to casing |
US4201947A (en) * | 1978-02-10 | 1980-05-06 | Rca Corporation | Long-tailed-pair connections of MOSFET's operated in sub-threshold region |
DE2924592C2 (en) * | 1979-06-19 | 1983-05-26 | Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart | Method for producing a carrier matrix for a catalytic reactor for exhaust gas purification in internal combustion engines of motor vehicles |
GB2069364B (en) * | 1980-02-19 | 1984-05-23 | Johnson Matthey Co Ltd | Exhaust gas purification catalyst units |
DE3515681A1 (en) * | 1985-05-02 | 1986-11-06 | Üründül, Celâl, 6800 Mannheim | Metal support in a single-foil design |
US4598063A (en) * | 1985-08-09 | 1986-07-01 | Retallick William B | Spiral catalyst support and method of making it |
JPS62228616A (en) * | 1986-03-29 | 1987-10-07 | Nippon Kinzoku Kk | Catalyst cartridge for exhaust gas purification |
FI74523C (en) * | 1986-04-29 | 1988-02-08 | Kemira Oy | Preparation and fortification process of a catalytic cell intended for purification of exhaust gas. |
ATE45410T1 (en) * | 1986-05-12 | 1989-08-15 | Interatom | METALLIC HONEYCOMB BODY, IN PARTICULAR CATALYST CARRIER BODY, WITH SUPPORTING WALL AND PROCESS FOR ITS MANUFACTURE. |
JPS6336842A (en) * | 1986-07-29 | 1988-02-17 | Nippon Radiator Co Ltd | Metallic honeycomb carrier and its preparation |
JPS63185456A (en) * | 1987-01-26 | 1988-08-01 | Calsonic Corp | Production of metal honeycomb carrier |
JPS6463045A (en) * | 1987-09-03 | 1989-03-09 | Toyota Motor Corp | Metallic carrier |
-
1987
- 1987-11-16 FI FI875045A patent/FI78161C/en not_active IP Right Cessation
-
1988
- 1988-11-02 AU AU24600/88A patent/AU606226B2/en not_active Ceased
- 1988-11-08 YU YU02074/88A patent/YU207488A/en unknown
- 1988-11-09 AT AT2747/88A patent/AT392750B/en not_active IP Right Cessation
- 1988-11-10 GB GB8826363A patent/GB2212414B/en not_active Expired - Fee Related
- 1988-11-11 DE DE3838295A patent/DE3838295C2/en not_active Expired - Fee Related
- 1988-11-11 CH CH4183/88A patent/CH675750A5/de not_active IP Right Cessation
- 1988-11-11 IT IT8822586A patent/IT8822586A0/en unknown
- 1988-11-14 NL NL8802793A patent/NL8802793A/en not_active Application Discontinuation
- 1988-11-14 BR BR888805954A patent/BR8805954A/en not_active IP Right Cessation
- 1988-11-14 BE BE8801288A patent/BE1002482A3/en not_active IP Right Cessation
- 1988-11-15 ES ES8803469A patent/ES2011406A6/en not_active Expired - Lifetime
- 1988-11-15 DD DD88321811A patent/DD283667A5/en unknown
- 1988-11-15 KR KR1019880015035A patent/KR890008432A/en not_active Ceased
- 1988-11-15 SE SE8804108A patent/SE468323B/en not_active IP Right Cessation
- 1988-11-15 RU SU884356891A patent/RU1837962C/en active
- 1988-11-15 FR FR8814821A patent/FR2623244B1/en not_active Expired - Fee Related
- 1988-11-15 CA CA000583107A patent/CA1323752C/en not_active Expired - Fee Related
- 1988-11-16 CS CS887520A patent/CS277579B6/en not_active IP Right Cessation
- 1988-11-16 JP JP63287876A patent/JPH01155948A/en active Pending
- 1988-11-16 PL PL88275834A patent/PL159280B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CS752088A3 (en) | 1992-08-12 |
CA1323752C (en) | 1993-11-02 |
DE3838295C2 (en) | 1994-05-05 |
PL159280B1 (en) | 1992-12-31 |
ATA274788A (en) | 1990-11-15 |
DE3838295A1 (en) | 1989-05-24 |
AT392750B (en) | 1991-05-27 |
AU606226B2 (en) | 1991-01-31 |
FI78161C (en) | 1989-06-12 |
DD283667A5 (en) | 1990-10-17 |
BE1002482A3 (en) | 1991-02-26 |
SE8804108L (en) | 1989-05-17 |
CH675750A5 (en) | 1990-10-31 |
IT8822586A0 (en) | 1988-11-11 |
RU1837962C (en) | 1993-08-30 |
FR2623244A1 (en) | 1989-05-19 |
SE8804108D0 (en) | 1988-11-15 |
FR2623244B1 (en) | 1994-04-29 |
GB2212414B (en) | 1991-09-25 |
ES2011406A6 (en) | 1990-01-01 |
KR890008432A (en) | 1989-07-10 |
FI875045A0 (en) | 1987-11-16 |
BR8805954A (en) | 1989-08-08 |
PL275834A1 (en) | 1989-07-24 |
GB8826363D0 (en) | 1988-12-14 |
AU2460088A (en) | 1989-05-25 |
FI78161B (en) | 1989-02-28 |
SE468323B (en) | 1992-12-14 |
JPH01155948A (en) | 1989-06-19 |
GB2212414A (en) | 1989-07-26 |
NL8802793A (en) | 1989-06-16 |
YU207488A (en) | 1990-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
IF00 | In force as of 2000-06-30 in czech republic | ||
MM4A | Patent lapsed due to non-payment of fee |
Effective date: 20021116 |