EP0277477B1 - Support de catalyseur métallique à enveloppe tubulaire raccourcie - Google Patents

Support de catalyseur métallique à enveloppe tubulaire raccourcie Download PDF

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Publication number
EP0277477B1
EP0277477B1 EP88100077A EP88100077A EP0277477B1 EP 0277477 B1 EP0277477 B1 EP 0277477B1 EP 88100077 A EP88100077 A EP 88100077A EP 88100077 A EP88100077 A EP 88100077A EP 0277477 B1 EP0277477 B1 EP 0277477B1
Authority
EP
European Patent Office
Prior art keywords
catalyst carrier
carrier body
casing tube
end surfaces
brazed
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
EP88100077A
Other languages
German (de)
English (en)
Other versions
EP0277477A1 (fr
Inventor
Wolfgang Dipl.-Ing. Maus
Theodor Dipl.-Ing. Cyron
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
Application filed by Emitec Gesellschaft fuer Emissionstechnologie mbH filed Critical Emitec Gesellschaft fuer Emissionstechnologie mbH
Priority to AT88100077T priority Critical patent/ATE52836T1/de
Publication of EP0277477A1 publication Critical patent/EP0277477A1/fr
Application granted granted Critical
Publication of EP0277477B1 publication Critical patent/EP0277477B1/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
    • 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
    • F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
    • 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
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49345—Catalytic device making

Definitions

  • the present invention relates to a metallic catalyst carrier body according to the preamble of claim 1.
  • Such catalyst carrier bodies which are preferably used for exhaust gas purification of motor vehicles, are known, for example, from DE-A 2 924 592, DE-A 3 037 796 and DE-A 3 529 654 known. They are made, for example, of spirally superimposed, alternating corrugated and smooth or similarly structured metal sheets and are generally provided with a jacket tube.
  • a catalyst carrier body which has a tubular casing which is shorter on one side than the actual catalyst carrier body.
  • This embodiment is provided in particular as a so-called starting catalytic converter, which is installed close to the motor and is therefore exposed to high thermal loads.
  • the entire length of the jacket tube is soldered to the outermost layer of the catalyst carrier body and completely encloses at least one likewise soldered end face.
  • Such a catalyst carrier body is hampered in its axial and radial expansion or in a so-called growth occurring in these directions by the jacket tube, which can lead to premature destruction.
  • DE-A 2 746 475 also describes the mounting of a catalyst carrier body, which enables free expansion, with a tensioning strap.
  • this type of attachment is not very stable in terms of vibrations in the exhaust gas flow and mechanical shocks.
  • the fastening of the tension band on the casing tube causes manufacturing difficulties.
  • the casing tube can practically only be limited to the area of the soldered peripheral zone. It then surrounds the much longer catalyst carrier body in a ring shape.
  • This version is of course only suitable for later installation conditions, in which a protective cladding tube is attached anyway, which e.g. is generally the case with starting catalysts.
  • the usual pipes of the exhaust system of an internal combustion engine can be easily welded onto a jacket pipe shortened to a narrow ring, so that a closed system is created overall. When the exhaust system is finished, the soldered end faces of the catalyst carrier body then project freely into the subsequent pipelines or are supported by them.
  • the jacket tube has a slightly gaping longitudinal slot, which is preferably bridged by welding only in one area and is thereby fixed.
  • a longitudinally slotted jacket tube enables the production of an exact, precisely defined soldered peripheral zone between the jacket tube and the outermost layer of the catalyst carrier body in a particularly simple manner. While according to the prior art, solder was always distributed in an undefined manner when the jacket tube was pushed on, this can be avoided with a slotted jacket tube.
  • the desired circumferential zone to be soldered is provided with solder, for example in the form of powder, paste or foil, and then at its longitudinal slot spread on casing tube pushed on without smearing the solder.
  • solder for example in the form of powder, paste or foil
  • this manufacturing process prevents the outer layers from being crumpled or deformed, which would have a particularly negative effect in the case of a shortened jacket tube, since the crumpled layers would survive indefinitely on both sides.
  • the jacket tube can be brought to the desired diameter exactly in a suitable calibration device and fixed, for example, by a welding point. The remaining manufacturing steps are not affected by this measure.
  • the end faces can be soldered before or after these steps.
  • the actual catalyst carrier body 1 consists of alternating layers of spirally wound smooth 2 and corrugated 3 sheets. Metal sheets with a different structure, which form channels which are permeable to gas, are also suitable for the present invention.
  • the catalyst carrier body 1 is soldered on the face side to a depth t 1 or t 2 , the entire end faces not necessarily, but possibly only certain areas thereof having to be soldered.
  • the catalyst carrier body 1 is surrounded by a shortened jacket tube 4, which ends on both sides with a distance a 1 or a 2 in front of the end faces. The two distances a i , a 2 do not necessarily have to be the same size.
  • the casing tube 4 is completely or preferably only soldered to the outermost layer of the catalyst carrier body 1 in a narrow peripheral region 5.
  • the casing tube 4 can have a longitudinal slot 6 (which does not necessarily have to run exactly in the longitudinal direction), which is preferably fixed at one point by a welded connection 7.
  • the design according to the invention does not impede the thermal radial alternating expansion of the soldered ends, which increases the service life.
  • the slotted jacket tube enables the precise fixing and production of a narrow soldered peripheral area, which means that changes in the length of the catalyst carrier body are not hindered, which also has a favorable effect on the service life.
  • the slotted casing tube prevents the outer layers from being crumpled or shifted when being pushed open, without the need for complex other measures.
  • a catalyst carrier body according to the invention with a shortened jacket tube is particularly suitable for use as a starting catalyst in the area near the engine under high thermal alternating loads.

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)

Claims (3)

1. Support de catalyseur (1) métallique ayant une structure a nids d'abeille formée de tôles (2, 3) structurées, a travers laquelle du gaz peut passer et qui est entourée d'une enveloppe tubulaire (4) plus courte que le support de catalyseur (1), remarquable par les caractéristiques suivantes:
a) le support de catalyseur (1) est soudé, du côté frontal, au moins sur une partie de la surface frontale, jusqu'à une profondeur (t1, t2) prescrite, de préférence de quelques millimètres;
b) l'enveloppe tubulaire (4) se termine à une distance (ai, a2) prescrite, supérieure à la profondeur de soudage (ti, t2), avant les deux côtés frontaux, de préférence à une distance de 5 à 40 mm;
c) l'enveloppe tubulaire (4) n'est soudée à la couche la plus extérieure du support de catalyseur (1) que sur une zone périphérique (5) étroite et ne s'étend annulairement que sensiblement sur cette zone périphérique (5).
2. Support de catalyseur suivant la revendication 1, caractérisé en ce que l'enveloppe tubulaire (4) comporte une fente longitudinale (6) faiblement béante qui, de préférence, est recouverte et est fixée par une (des) soudure(s) (7) seulement dans une ou dans plusieurs zone(s) petite(s).
3. Procédé de fabrication d'un support de catalyseur suivant la revendication 2, remarquable par les caractéristiques suivantes:
a) la couche la plus extérieure du support de catalyseur (1) dont l'enroulement est fini et/ou le côté intérieur de l'enveloppe tubulaire (4) est soudé dans la zone périphérique (5) à souder, le cas échéant à l'aide de colle auto-adhésive, d'adhésif ou de liant;
b) l'enveloppe tubulaire (4) a fente (6) longitudinale est enfilée dans la position prévue sur le support de catalyseur (1), en écartant la fente (6) longitudinale, puis en supprimant l'écartement et la fente est soudée au moins en un emplacement (7);
c) avant ou après les stades a) et b), les côtés frontaux sont soudés en tout ou partie, d'une manière en soi connue;
d) le support de catalyseur (1) est soudé complètement à l'enveloppe tubulaire (4).
EP88100077A 1987-01-15 1988-01-05 Support de catalyseur métallique à enveloppe tubulaire raccourcie Expired - Lifetime EP0277477B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100077T ATE52836T1 (de) 1987-01-15 1988-01-05 Metallischer katalysator-traegerkoerper mit verkuerztem mantelrohr.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3701052 1987-01-15
DE3701052 1987-01-15

Publications (2)

Publication Number Publication Date
EP0277477A1 EP0277477A1 (fr) 1988-08-10
EP0277477B1 true EP0277477B1 (fr) 1990-05-16

Family

ID=6318898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100077A Expired - Lifetime EP0277477B1 (fr) 1987-01-15 1988-01-05 Support de catalyseur métallique à enveloppe tubulaire raccourcie

Country Status (8)

Country Link
US (1) US4948353A (fr)
EP (1) EP0277477B1 (fr)
JP (1) JPS63176613A (fr)
KR (1) KR960000483B1 (fr)
AT (1) ATE52836T1 (fr)
DE (1) DE3860155D1 (fr)
ES (1) ES2014333B3 (fr)
MX (1) MX170296B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403558A (en) * 1988-10-04 1995-04-04 Nippon Steel Corporation Heat and fatigue resistant metallic carrier for automobile exhaust gas-purifying catalyst
JPH02124215U (fr) * 1989-03-24 1990-10-12
FR2656376B1 (fr) * 1989-12-22 1994-04-29 Rosi Ets Pot d'echappement, notamment catalytique, pour les gaz brules de moteurs a combustion interne.
JPH0424611U (fr) * 1990-06-19 1992-02-27
JPH0815559B2 (ja) * 1990-11-13 1996-02-21 新日本製鐵株式会社 耐熱応力・耐熱疲労特性の優れたレーストラック型自動車排ガス触媒用金属担体
DE19704144A1 (de) * 1997-02-04 1998-08-06 Emitec Emissionstechnologie Extrudierter Wabenkörper, insbesondere Katalysator-Trägerkörper, mit verstärkter Wandstruktur
DE10018640A1 (de) * 2000-04-14 2001-10-31 Emitec Emissionstechnologie Katalysator-Trägerkörper mit Manschette und verkürztem Mantelrohr
DE10027807A1 (de) * 2000-06-05 2002-01-31 Emitec Emissionstechnologie Blech mit Barriere für einen Wabenkörper
DE10045540A1 (de) 2000-09-13 2002-03-21 Emitec Emissionstechnologie Wabenkörper mit verkürztem, geschlitztem Innenmantelrohr
JP2003200060A (ja) * 2002-01-10 2003-07-15 Calsonic Kansei Corp 金属製触媒担体およびその製造方法
DE102004015814A1 (de) * 2004-03-31 2005-10-20 Volkswagen Ag Abgasreinigungsvorrichtung und Verfahren zu ihrer Herstellung
JP2008045414A (ja) * 2006-08-10 2008-02-28 Yamaha Marine Co Ltd 触媒の支持構造
KR100901226B1 (ko) * 2007-05-03 2009-06-08 오철주 디젤엔진용 매연저감필터의 브레이징 방법
KR100901227B1 (ko) * 2007-05-03 2009-06-08 오철주 디젤엔진용 매연저감필터의 브레이징 방법
USD976571S1 (en) * 2019-11-15 2023-01-31 Make Great Sales Limited Straw carrying tube

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746475A1 (de) * 1977-10-15 1979-04-19 Volkswagenwerk Ag Vorrichtung zur halterung eines monolithischen traegerkoerpers einer katalytischen abgasreinigungsvorrichtung
DE2856030C2 (de) * 1978-12-23 1987-02-12 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Verfahren zum Herstellen einer aus Metallfolien gewickelten Trägermatrix für eine Abgaspatrone
DE2924592C2 (de) * 1979-06-19 1983-05-26 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Verfahren zum Herstellen einer Trägermatrix für einen katalytischen Reaktor zur Abgasreinigung bei Brennkraftmaschinen von Kraftfahrzeugen
DE3037796C2 (de) * 1980-10-07 1983-06-30 Interatom Internationale Atomreaktorbau Gmbh, 5060 Bergisch Gladbach Verfahren zum Löten und dessen Verwendung
DE3603882A1 (de) * 1985-02-14 1986-08-14 Volkswagen AG, 3180 Wolfsburg Verfahren zur herstellung eines metall-traegerkoerpers fuer einen konverter zur abgasreinigung und nach diesem verfahren hergestellter metall-traegerkoerper
DE3664361D1 (en) * 1985-07-25 1989-08-17 Interatom Mounting device for a metallic flue gas catalyst support body, and method of manufacturing it
DE3529654A1 (de) * 1985-08-19 1987-02-19 Interatom Verfahren zum selektiven beloten eines metallischen katalysatortraegerkoerpers und entsprechend hergestellter katalysatortraegerkoerper
DE8605649U1 (de) * 1986-03-01 1986-04-17 Degussa Ag, 6000 Frankfurt Vorrichtung zur Halterung von Monolithkatalysatoren
ATE45410T1 (de) * 1986-05-12 1989-08-15 Interatom Metallischer wabenkoerper, insbesondere katalysator-traegerkoerper, mit tragwand und verfahren zu seiner herstellung.
ATE45781T1 (de) * 1986-05-12 1989-09-15 Interatom Wabenkoerper, insbesondere katalysatortr|gerk¯rper, mit gegensinnig verschlungenen metallblechschichten und verfahren zu seiner herstellung.
ES2041670T3 (es) * 1986-11-20 1993-12-01 Emitec Emissionstechnologie Cuerpo porta-catalizador metalico y procedimiento para su fabricacion.

Also Published As

Publication number Publication date
KR880008831A (ko) 1988-09-13
EP0277477A1 (fr) 1988-08-10
KR960000483B1 (ko) 1996-01-08
ES2014333B3 (es) 1990-07-01
ATE52836T1 (de) 1990-06-15
DE3860155D1 (de) 1990-06-21
US4948353A (en) 1990-08-14
MX170296B (es) 1993-08-16
JPS63176613A (ja) 1988-07-20
JPH0583728B2 (fr) 1993-11-29

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