ES2109030T3 - DEVICE FOR CATALYTIC DEPURATION OR DECOMPOSITION OF HOT EXHAUST GASES. - Google Patents
DEVICE FOR CATALYTIC DEPURATION OR DECOMPOSITION OF HOT EXHAUST GASES.Info
- Publication number
- ES2109030T3 ES2109030T3 ES95107130T ES95107130T ES2109030T3 ES 2109030 T3 ES2109030 T3 ES 2109030T3 ES 95107130 T ES95107130 T ES 95107130T ES 95107130 T ES95107130 T ES 95107130T ES 2109030 T3 ES2109030 T3 ES 2109030T3
- Authority
- ES
- Spain
- Prior art keywords
- catalyst
- housing
- exhaust gases
- wall
- depuration
- 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
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 ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 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
- 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
- F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
- F01N2330/04—Methods of manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (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)
- Physical Or Chemical Processes And Apparatus (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Catalysts (AREA)
Abstract
The exhaust gases are passed through a two stage catalyst comprising a metal catalyst (10) which rapidly reaches the operating temperature after starting the engine and a ceramic catalyst (2) for normal operation. The metal catalyst is mounted on an inner support wall spaced from the outer wall of the catalyst by an air space to minimise thermal conduction. The inlet end of the catalyst housing is made of two concentric cone sections to form the insulating air space. The rear end of the inner wall is supported on a shaped insert ring (11) braced on the front lip of the ceramic catalyst support. The ceramic catalyst is slid axially into the housing and locates against a stop prior to sealing the housing. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4425995A DE4425995C2 (en) | 1994-07-22 | 1994-07-22 | Device for the catalytic cleaning or decomposition of hot exhaust gases |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2109030T3 true ES2109030T3 (en) | 1998-01-01 |
Family
ID=6523883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES95107130T Expired - Lifetime ES2109030T3 (en) | 1994-07-22 | 1995-05-11 | DEVICE FOR CATALYTIC DEPURATION OR DECOMPOSITION OF HOT EXHAUST GASES. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0693616B1 (en) |
AT (1) | ATE159565T1 (en) |
DE (1) | DE4425995C2 (en) |
ES (1) | ES2109030T3 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19528947A1 (en) * | 1995-08-07 | 1997-02-13 | Boysen Friedrich Gmbh Co Kg | Device for the catalytic cleaning or decomposition of hot exhaust gases |
DE19627289A1 (en) * | 1996-06-16 | 1997-12-18 | Andreas Dipl Ing Gifhorn | Catalyst assembly for e.g. exhaust gas purification |
DE19826284B4 (en) * | 1997-06-19 | 2009-07-30 | Volkswagen Ag | Arrangement for a vehicle exhaust system with catalytic converter |
DE19918301C1 (en) * | 1999-04-22 | 2000-10-26 | Zeuna Staerker Kg | Vehicle exhaust system comprises a catalytic exhaust gas cleansing unit, a gas inlet pipe, an outlet pipe and a catalyst |
GB0407806D0 (en) * | 2004-04-06 | 2004-05-12 | Catalytic Support Systems Ltd | A separator for a catalytic converter |
US7323030B2 (en) * | 2004-10-28 | 2008-01-29 | Delphi Technologies, Inc. | Apparatus and method for an exhaust aftertreatment device |
JP5146777B2 (en) * | 2009-03-11 | 2013-02-20 | 本田技研工業株式会社 | Catalyst holding structure |
Family Cites Families (7)
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 |
US4413392A (en) * | 1980-08-22 | 1983-11-08 | Honda Giken Kogyo Kabushiki Kaisha | Method of making two-stage catalytic converter |
EP0316637B1 (en) * | 1987-11-13 | 1990-11-28 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Housing for an exhaust gas-cleaning device |
JPH01147109A (en) * | 1987-11-30 | 1989-06-08 | Calsonic Corp | Catalytic converter |
DE3834403A1 (en) * | 1988-10-10 | 1990-04-12 | Zeuna Staerker Kg | DEVICE FOR THE CATALYTIC PURIFICATION OF EXHAUST GAS FROM COMBUSTION ENGINES |
DE4035971A1 (en) * | 1990-11-12 | 1992-05-14 | Emitec Emissionstechnologie | HEATABLE CATALYST ARRANGEMENT FOR THE EXHAUST GAS PURIFICATION OF COMBUSTION ENGINES |
DE4117364A1 (en) * | 1991-05-28 | 1992-12-03 | Duerrwaechter E Dr Doduco | Accelerating start-up IC engine exhaust gas purificn. catalyst - by catalytic oxidn. of carbon mon:oxide just before main catalyst and transferring heat to gas stream |
-
1994
- 1994-07-22 DE DE4425995A patent/DE4425995C2/en not_active Expired - Fee Related
-
1995
- 1995-05-11 ES ES95107130T patent/ES2109030T3/en not_active Expired - Lifetime
- 1995-05-11 EP EP95107130A patent/EP0693616B1/en not_active Expired - Lifetime
- 1995-05-11 AT AT95107130T patent/ATE159565T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE4425995C2 (en) | 1996-10-24 |
DE4425995A1 (en) | 1996-01-25 |
EP0693616B1 (en) | 1997-10-22 |
ATE159565T1 (en) | 1997-11-15 |
EP0693616A1 (en) | 1996-01-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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