EP0121174B1 - Support de catalyseur à fentes de dilatation pour moteurs à combustion interne - Google Patents

Support de catalyseur à fentes de dilatation pour moteurs à combustion interne Download PDF

Info

Publication number
EP0121174B1
EP0121174B1 EP84103015A EP84103015A EP0121174B1 EP 0121174 B1 EP0121174 B1 EP 0121174B1 EP 84103015 A EP84103015 A EP 84103015A EP 84103015 A EP84103015 A EP 84103015A EP 0121174 B1 EP0121174 B1 EP 0121174B1
Authority
EP
European Patent Office
Prior art keywords
catalyst carrier
carrier body
slots
matrix
combustion engines
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
Application number
EP84103015A
Other languages
German (de)
English (en)
Other versions
EP0121174A1 (fr
Inventor
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.)
Interatom Internationale Atomreaktorbau GmbH
Original Assignee
Interatom Internationale Atomreaktorbau GmbH
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 Interatom Internationale Atomreaktorbau GmbH filed Critical Interatom Internationale Atomreaktorbau GmbH
Priority to AT84103015T priority Critical patent/ATE22154T1/de
Publication of EP0121174A1 publication Critical patent/EP0121174A1/fr
Application granted granted Critical
Publication of EP0121174B1 publication Critical patent/EP0121174B1/fr
Expired legal-status Critical Current

Links

Images

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
    • 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

Definitions

  • the present invention relates to a metallic carrier body for coatings of catalytically active substances for cleaning exhaust gases, in particular for internal combustion engines.
  • These metallic catalyst carrier bodies consist of a carrier matrix with spirally wound, very thin-walled, smooth and / or corrugated metal strips, which are joined together in a circular-cylindrical or oval-cylindrical jacket tube by welding, soldering or gluing.
  • the carrier matrix prevents a stress-free thermal expansion of its volume.
  • the resulting plastic compression deformations of the carrier matrix cells at high temperature cause high tensile loads on the cell walls and their connection points in the cooling phase due to inertia-related temperature gradients between the matrix and the jacket tube, which tear as a result of the plastic alternating deformation after a short operating time and in the zones of high alternating stress to detach all Can lead sections of the carrier matrix body.
  • the object of the present invention is a catalyst carrier body for the exhaust gases of internal combustion engines from smooth and / or corrugated metal strips spirally wound and fastened by joining technology in a jacket tube. which avoids the disadvantages mentioned above.
  • a catalyst body according to the first claim Due to the proposed longitudinal division of the matrix body by means of radial or tendon-shaped slots into several sectors or zones across the cross section, the spirally wound, rigid matrix structure is interrupted in its ring structure of the matrix cells supported against one another. Theoretically, the thermal expansion of the matrix body is prevented as a quasi full-surface body against the iJiler tube.
  • the individual sectors of the carrier matrix are fastened in a stable bond with the jacket pipe by means of a joining connection and, under thermal stress, have unrestricted expansion options in the direction of the free spaces created by the slots, which prevents plastic alternating deformations of the matrix cells with the consequences of destruction and detachment of the carrier matrix.
  • the slots can, for example, after joining the catalyst carrier body by welding, soldering, gluing or other joining methods by means of thermal, chemical, mechanical or other separation and removal methods, such as. B. laser beam burning, chemical sinking, spark erosion, vibration saws, rooms, etc., are introduced into the carrier matrix.
  • the jacket tube remains undamaged. Since the center of the carrier matrix may consist of more densely wound sheet metal layers, it may be advantageous not to pass the slots through this core, but only up to or close to it. This does not affect the beneficial effects of the slots.
  • the slices do not have to have the width required for the stretching during production, since the carrier matrix expands and plastically deforms during the first heating, so that the slits then have the exactly necessary width when they cool down. In this case, it is advantageous that the slots are practically closed at operating temperature and leave no undesired path for the gas.
  • the slots cover the entire length of the catalyst carrier body.
  • the catalyst carrier body then consists of various segments fastened to the casing tube, which can expand unhindered in the free space formed by the slots. Since, as stated above, the slots are practically closed at operating temperature, but at least not larger than the other openings, the slots do not have any disadvantages during operation. However, they prevent tensions and plastic deformations of the individual segments during cooling, as these can now contract individually towards the jacket tube.
  • the slots are arranged axially parallel in the longitudinal direction.
  • Such axially parallel slots can be made most easily retrospectively with a completely wound catalyst carrier body.
  • the slots on the front and rear of the catalyst carrier body are offset from one another and arranged over a portion of its total length. If the slits overlap in the middle of the body, the advantages mentioned above are retained with this arrangement. In addition, even when the catalyst carrier body is cold, there is no continuous gap through which gases could escape.
  • the catalyst carrier body from two or more slotted disks arranged at a distance from one another in the casing tube.
  • the division of the total length of the catalyst into several narrow sections with free spaces in between leads to a further advantage.
  • FIG. 1 shows a cross section through FIG. 1.
  • a cross section through another embodiment of the invention is also shown schematically.
  • the catalyst carrier body is divided into six cross-sectional segments by three tendon-shaped slots 11, 12, 13, which are each attached to the casing tube 2 by joining technology. These slots do not go through the entire catalyst carrier body but only up to the middle or a little bit beyond. From the other side there are also slots 14, 15, 16 in the catalyst carrier body, which are offset with respect to the slots 11, 12, 13. This is indicated in Fig. 3 by dashed lines.
  • the slots 21 show a possibility of arranging the slots, which avoids cutting through the more tightly wound center 20 of the catalyst carrier body.
  • the slots 21 lead tangentially to the denser wound center 20 and end in its vicinity. Even if the resulting segments are not completely separated from one another in this exemplary embodiment, the matrix deforms during the first operation in such a way that the advantages mentioned above are essentially also present in this arrangement of the slots.

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)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)

Claims (5)

1. Support de catalyseur (1) pour des moteurs à combustion interne, constitué de bandes de tôle lisses (4) et/ou ondulées (3) et enroulées en spirale, qui sont fixées par une technique d'assemblage dans un tube-enveloppe (2), caractérisé en ce que la matrice du support de catalyseur est subdivisée, suivant la direction longitudinale, en plusieurs secteurs en section transversale (6, 7, 8) par des fentes longitudinales (5) s'étendant à peu près radialement ou suivant la direction de cordes.
2. Support de catalyseur suivant la revendication 1, caractérisé en ce que les fentes (5) s'étendent sur toute la longueur du support de catalyseur.
3. Support de catalyseur suivant la revendication 1 ou 2, caractérisé en ce que les fentes (5) sont disposées parallèlement à l'axe suivant la direction longitudinale.
4. Support de catalyseur suivant la revendication 1 ou 2, caractérisé en ce que les fentes sont décalées les unes par rapport aux autres du côté antérieur et du côté postérieur du support de catalyseur et s'étendent sur une partie de sa longueur totale.
5. Support de catalyseur suivant l'une des revendications précédentes, caractérisé en ce que le support du catalyseur est constitué de deux ou de plusieurs disques disposés à distance l'un de l'autre dans le tube-enveloppe.
EP84103015A 1983-03-30 1984-03-19 Support de catalyseur à fentes de dilatation pour moteurs à combustion interne Expired EP0121174B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103015T ATE22154T1 (de) 1983-03-30 1984-03-19 Katalysator-traegerkoerper fuer verbrennungskraftmaschinen mit dehnungsschlitzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3311654 1983-03-30
DE19833311654 DE3311654A1 (de) 1983-03-30 1983-03-30 Katalysator-traegerkoerper fuer verbrennungskraftmaschinen mit dehnungsschlitzen

Publications (2)

Publication Number Publication Date
EP0121174A1 EP0121174A1 (fr) 1984-10-10
EP0121174B1 true EP0121174B1 (fr) 1986-09-10

Family

ID=6195130

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103015A Expired EP0121174B1 (fr) 1983-03-30 1984-03-19 Support de catalyseur à fentes de dilatation pour moteurs à combustion interne

Country Status (3)

Country Link
EP (1) EP0121174B1 (fr)
AT (1) ATE22154T1 (fr)
DE (2) DE3311654A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3926072A1 (de) * 1989-08-07 1991-02-21 Behr Gmbh & Co Katalysator zur abgasreinigung mit elastischen elementen zum ausgleich von laengsdehnungen

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529654A1 (de) * 1985-08-19 1987-02-19 Interatom Verfahren zum selektiven beloten eines metallischen katalysatortraegerkoerpers und entsprechend hergestellter katalysatortraegerkoerper
DE3602134A1 (de) * 1986-01-24 1987-07-30 Daimler Benz Ag Vorrichtung zum reinigen von brennkraftmaschinen-abgasen mit einem in ein gehaeuse eingeloeteten metall-matrix-katalysator
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.
DE3738537A1 (de) * 1987-11-13 1989-06-01 Sueddeutsche Kuehler Behr Verfahren und vorrichtung zur herstellung eines traegerkoerpers fuer einen katalytischen reaktor
DE8816514U1 (fr) * 1988-04-25 1989-10-26 Emitec Emissionstechnologie
JPH0619793Y2 (ja) * 1988-11-30 1994-05-25 臼井国際産業株式会社 排気ガス浄化装置
JPH0823409B2 (ja) * 1989-06-20 1996-03-06 エミテツク 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 ガス流中の燃料の無炎燃焼による熱発生方法と装置
SE470546B (sv) * 1992-12-15 1994-08-01 Sandvik Ab Katalysatorenhet för behandling av avgaser från förbränningsmotor samt sätt för tillverkning av katalysatorenheten
US5866230A (en) * 1993-01-11 1999-02-02 Emitec Gesellschaft Fuer Emissionstechnologie Gmbh Extruded honeycomb body of ceramic and/or metallic material with increased flexibility
DE4300477A1 (de) * 1993-01-11 1994-07-14 Emitec Emissionstechnologie Extrudierter Wabenkörper aus keramischem und/oder metallischem Material mit erhöhter Flexibilität

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755120A (en) * 1972-02-03 1973-08-28 New Prod Corp Internal combustion engine exhaust catalytic reactor, with electrical charge means
DE2302746A1 (de) * 1973-01-20 1974-07-25 Sueddeutsche Kuehler Behr Traegermatrix fuer einen katalytischen reaktor zur abgasreinigung bei brennkraftmaschinen, insb. ottomotoren von kraftfahrzeugen, sowie ein herstellungsverfahren
US3887741A (en) * 1973-08-13 1975-06-03 Corning Glass Works Thin-walled honeycombed substrate with axial discontinuities in the periphery
US3983283A (en) * 1974-03-18 1976-09-28 Corning Glass Works Honeycombed structures having open-ended cells formed by interconnected walls with longitudinally extending discontinuities

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3926072A1 (de) * 1989-08-07 1991-02-21 Behr Gmbh & Co Katalysator zur abgasreinigung mit elastischen elementen zum ausgleich von laengsdehnungen

Also Published As

Publication number Publication date
DE3311654A1 (de) 1984-10-04
DE3460660D1 (en) 1986-10-16
ATE22154T1 (de) 1986-09-15
EP0121174A1 (fr) 1984-10-10

Similar Documents

Publication Publication Date Title
EP0121174B1 (fr) Support de catalyseur à fentes de dilatation pour moteurs à combustion interne
DE2856643C2 (de) Innengekühlte Hohlschaufel für Axialturbinen
EP2422058B1 (fr) Corps en nid d'abeilles pouvant être chauffé sur plusieurs niveaux
DE2302746A1 (de) Traegermatrix fuer einen katalytischen reaktor zur abgasreinigung bei brennkraftmaschinen, insb. ottomotoren von kraftfahrzeugen, sowie ein herstellungsverfahren
WO1991001178A1 (fr) Element alveole avec des surfaces internes de guidage du flux, en particulier elements de catalyseurs pour vehicules a moteur
EP1444474A1 (fr) Dispositif de transmission de chaleur
EP0929738B1 (fr) Corps alveole a isolation thermique, de preference pour pot catalytique
DE3941919A1 (de) Abgasreinigungsvorrichtung
DE602005004455T2 (de) Gasbehandlungseinrichtung und Verfahren zu deren Herstellung und deren Verwendung
EP0121175B1 (fr) Support de catalyseur en rubans en tôle à enroulement hélicoidal conique pour moteurs à combustion interne
DE4313187A1 (de) Metallischer Trägerkörper für Abgasreinigungskatalysator-Material
DE19900310A1 (de) Katalytischer Konverter für einen Schalldämpfer eines Kleinmotors
DE4014444A1 (de) Abgasreinigungsvorrichtung
EP0277477B1 (fr) Support de catalyseur métallique à enveloppe tubulaire raccourcie
DE3926072C2 (de) Katalysator zur Abgasreinigung mit elastischen Elementen zum Ausgleich von Längsdehnungen
DE3312944C2 (fr)
DE19900148A1 (de) Metallträger für einen Abgasreinigungs-Katalysator
DE112020006577T5 (de) Wärmetauscher
WO2023061746A1 (fr) Corps en nid d'abeilles destiné au post-traitement des gaz d'échappement, et comportant des feuilles métalliques à fentes
DE19504851A1 (de) Abgaskonverter mit einem Vorkatalysator und einem Hauptkatalysator
DE8309485U1 (de) Katalysator-Trägerkörper für Verbrennungskraftmaschinen mit Dehnungsschlitzen
EP0988109B1 (fr) Support metallique pour catalyseur d'epuration d'un courant de gaz d'echappement, en particulier d'un petit moteur
EP0969929B1 (fr) Corps en nid d'abeilles, notamment corps de support de catalyseur, avec une paroi a structure renforcee
DE2239873B2 (de) Katalytischer abgaskonverter fuer brennkraftmaschinen
DE102011081493B4 (de) Katalysatorträger für einen Katalysator, Katalysator und Verfahren zur Herstellung eines Katalysators

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19850227

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: INTERATOM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 22154

Country of ref document: AT

Date of ref document: 19860915

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3460660

Country of ref document: DE

Date of ref document: 19861016

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19870331

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19890224

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19890308

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890322

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19890331

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890623

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19900319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19900331

Ref country code: LI

Effective date: 19900331

Ref country code: BE

Effective date: 19900331

BERE Be: lapsed

Owner name: INTERATOM G.M.B.H.

Effective date: 19900331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19901001

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

ITTA It: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 84103015.8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990426

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990429

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990517

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19990520

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000320

EUG Se: european patent has lapsed

Ref document number: 84103015.8

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010103