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EP0363681A3 - Catalyst - Google Patents

Catalyst Download PDF

Info

Publication number
EP0363681A3
EP0363681A3 EP19890117194 EP89117194A EP0363681A3 EP 0363681 A3 EP0363681 A3 EP 0363681A3 EP 19890117194 EP19890117194 EP 19890117194 EP 89117194 A EP89117194 A EP 89117194A EP 0363681 A3 EP0363681 A3 EP 0363681A3
Authority
EP
European Patent Office
Prior art keywords
monolith
cross
exhaust
sheet
butt
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.)
Withdrawn
Application number
EP19890117194
Other languages
German (de)
French (fr)
Other versions
EP0363681A2 (en
Inventor
Klaus Baier
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.)
Roth-Technik & Co Forschung fur Automobil- und Umwelttechnik GmbH
Roth Technik GmbH
Original Assignee
Roth-Technik & Co Forschung fur Automobil- und Umwelttechnik GmbH
Roth Technik 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 Roth-Technik & Co Forschung fur Automobil- und Umwelttechnik GmbH, Roth Technik GmbH filed Critical Roth-Technik & Co Forschung fur Automobil- und Umwelttechnik GmbH
Publication of EP0363681A2 publication Critical patent/EP0363681A2/en
Publication of EP0363681A3 publication Critical patent/EP0363681A3/en
Withdrawn legal-status Critical Current

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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F01N3/2857—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets being at least partially made of intumescent material, e.g. unexpanded vermiculite
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • 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
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F01N3/2867—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets being placed at the front or end face of catalyst body
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features having thermal insulation
    • 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
    • F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
    • 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
    • F01N2330/06—Ceramic, e.g. monoliths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
    • F01N2350/02—Fitting ceramic monoliths in a metallic housing
    • F01N2350/04—Fitting ceramic monoliths in a metallic housing with means compensating thermal expansion
    • 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
    • F01N2350/00—Arrangements for fitting catalyst support or particle filter element in the housing
    • F01N2350/02—Fitting ceramic monoliths in a metallic housing
    • F01N2350/06—Fitting ceramic monoliths in a metallic housing with means preventing gas flow by-pass or leakage
    • 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
    • F01N2530/00—Selection of materials for tubes, chambers or housings
    • F01N2530/24—Sintered porous material, e.g. bronze, aluminium or the like

Landscapes

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

Abstract

Die Erfindung betrifft einen zylindrischen, vorzugsweise im Querschnitt ovalen sowie beschichteten Monolithen aus Keramik als Baukastensystem für einen Katalysator für das Abgas von Verbrennungsmotoren, der einen sich vom Quer­ schnitt des Monolithen bis auf den Querschnitt des das Abgas fürhenden Rohrs verjüngenden Eingangskegel mit einem Rohr­ anschluß und einem Ausgangskegel, auch mit einem Rohran­ schluß, versehen ist, wobei zwischen dem Mantel des Mono­ lithen und dem ihn umgebenden Blech eine Quellmatte ange­ ordnet ist, wobei um den Mantel des Monolithen (20) die eine kürzere Mantellinie aufweisende Quellmatte (21) unter Be­ lassen eines Abstandes zu den beiden umlaufenden Endkanten (22) des Monolithen (20) herumgelegt ist, wobei die Quell­ matte von einem beidseitig über diese unter Bildung eines Ringraums (23) vorstehenden Blechs (24) so umschlossen ist, daß dessen zumindest beide Enden längs einer Mantellinie (25) stumpf aufeinander stoßen und miteinander verschweißt sind, und wobei in jedem Ringraum (23) ein die beiden End­ kanten (22) umgreifender und axial beidseitig über das Blech (24) und die Stirnseite (27) des Monolithen vorstehender Schutzring (26) eingesetzt und an dem Blech (24) festgelegt ist. The invention relates to a cylindrical, preferably cross-sectionally oval and coated monoliths Ceramic as a modular system for a catalyst for the Exhaust from internal combustion engines, one from the cross cut the monolith to the cross section of the exhaust for reed tube tapering entrance cone with a tube connection and an exit cone, also with a Rohran conclusion, is provided, being between the coat of the mono lithen and the surrounding sheet metal a swelling mat is arranged, the one around the jacket of the monolith (20) shorter swelling mat (21) under Be leave a distance to the two circumferential end edges (22) of the monolith (20) is laid around, the source matte from one on both sides to form one Annular space (23) projecting sheet (24) is so enclosed that its at least both ends along a generatrix (25) butt butt and welded together are, and in each annulus (23) one of the two ends edges (22) encompassing and axially on both sides over the sheet (24) and the front (27) of the monolith protruding Protective ring (26) used and fixed to the plate (24) is.

EP19890117194 1988-10-12 1989-09-17 Catalyst Withdrawn EP0363681A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8812805U DE8812805U1 (en) 1988-10-12 1988-10-12 Component kit for a catalyst
DE8812805U 1988-10-12

Publications (2)

Publication Number Publication Date
EP0363681A2 EP0363681A2 (en) 1990-04-18
EP0363681A3 true EP0363681A3 (en) 1991-07-03

Family

ID=6828783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890117194 Withdrawn EP0363681A3 (en) 1988-10-12 1989-09-17 Catalyst

Country Status (2)

Country Link
EP (1) EP0363681A3 (en)
DE (1) DE8812805U1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3359596B2 (en) 1999-07-22 2002-12-24 日本碍子株式会社 Canning structure and manufacturing method thereof
DE10113093A1 (en) 2001-03-17 2002-09-19 Volkswagen Ag Catalyst funnel and catalyst housing
DE10313155B4 (en) * 2003-03-18 2013-02-14 Volkswagen Ag Process for the preparation of a catalytic converter
US7851645B2 (en) 2008-02-11 2010-12-14 Catalytic Distillation Technologies Process for continuous production of organic carbonates or organic carbamates and solid catalysts therefore
US8110698B2 (en) 2008-02-11 2012-02-07 Shell Oil Company Process for producing diphenyl carbonate
CN104728527B (en) * 2013-12-19 2017-04-05 北汽福田汽车股份有限公司 A kind of wire harness passing-hole protective jacket
CN112412583B (en) * 2020-11-30 2022-07-08 重庆长安汽车股份有限公司 Three way catalyst converter, engine exhaust assembly and car

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163041A (en) * 1974-05-29 1979-07-31 J. Eberspacher Support for elastically mounting a ceramic honeycomb catalyst
US4335078A (en) * 1977-09-13 1982-06-15 Nissan Motor Company, Limited Catalytic reactor for automotive exhaust line
US4500099A (en) * 1982-06-15 1985-02-19 Toyota Jidosha Kabushiki Kaisha Elastic supporting and sealing member with thermal foaming strip
EP0176722A1 (en) * 1984-09-01 1986-04-09 Leistritz Aktiengesellschaft Catalytic exhaust gas detoxication device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4163041A (en) * 1974-05-29 1979-07-31 J. Eberspacher Support for elastically mounting a ceramic honeycomb catalyst
US4335078A (en) * 1977-09-13 1982-06-15 Nissan Motor Company, Limited Catalytic reactor for automotive exhaust line
US4500099A (en) * 1982-06-15 1985-02-19 Toyota Jidosha Kabushiki Kaisha Elastic supporting and sealing member with thermal foaming strip
EP0176722A1 (en) * 1984-09-01 1986-04-09 Leistritz Aktiengesellschaft Catalytic exhaust gas detoxication device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 165 (M-230)(1310) 20 Juli 1983, & JP-A-58 72612 (TOYOTA) 30 April 1983, *

Also Published As

Publication number Publication date
EP0363681A2 (en) 1990-04-18
DE8812805U1 (en) 1990-02-08

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