[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

FR2333950A1 - Catalytic exhaust gas purifier - compensates catalytic carrier expansion by alternately fixed tantalum strips - Google Patents

Catalytic exhaust gas purifier - compensates catalytic carrier expansion by alternately fixed tantalum strips

Info

Publication number
FR2333950A1
FR2333950A1 FR7401130A FR7401130A FR2333950A1 FR 2333950 A1 FR2333950 A1 FR 2333950A1 FR 7401130 A FR7401130 A FR 7401130A FR 7401130 A FR7401130 A FR 7401130A FR 2333950 A1 FR2333950 A1 FR 2333950A1
Authority
FR
France
Prior art keywords
catalytic
exhaust gas
gas purifier
compensates
alternately fixed
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Withdrawn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
FR7401130A
Other languages
French (fr)
Inventor
Reinhard Gropp
Hans Zenn
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.)
PFORZHEIM METALLSCHLAUCH
Metallschlauch Fabrik Pforzheim Vorm HCH Witzenmann GmbH
Original Assignee
PFORZHEIM METALLSCHLAUCH
Metallschlauch Fabrik Pforzheim Vorm HCH Witzenmann 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
Priority claimed from DE19732301646 external-priority patent/DE2301646A1/en
Priority claimed from DE19732308220 external-priority patent/DE2308220C3/en
Priority claimed from DE2317684A external-priority patent/DE2317684C3/en
Application filed by PFORZHEIM METALLSCHLAUCH, Metallschlauch Fabrik Pforzheim Vorm HCH Witzenmann GmbH filed Critical PFORZHEIM METALLSCHLAUCH
Publication of FR2333950A1 publication Critical patent/FR2333950A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/9454—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • 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
    • 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
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • 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
    • 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
    • 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
    • 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
    • F01N3/2875—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration by using elastic means, e.g. spring leaves, for retaining catalyst body in the housing
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

A catalytic exhaust gas purifier for the engines of motor vehicles consists of an outer shell of stainless heat-resisting steel in which the catalyst carrier is guided by support rings at each end. Six strips of tantalum locate these rings, the free ends of three of them being anchored at the inlet end and those of three others at the outlet end of the shell. This achieves an automatic compensation for the differential thermal expansion of purifier shell and catalyst carrier. The life of the catalyst and its carrier is thus improved.
FR7401130A 1973-01-13 1974-01-14 Catalytic exhaust gas purifier - compensates catalytic carrier expansion by alternately fixed tantalum strips Withdrawn FR2333950A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19732301646 DE2301646A1 (en) 1973-01-13 1973-01-13 Catalyst vessel with catalyst support system - eliminating free play between catalyst and vessel independently of operating temp. for use in exhaust gas purificn. system
DE19732308220 DE2308220C3 (en) 1973-02-20 Device for the catalytic cleaning of exhaust gases
DE2317684A DE2317684C3 (en) 1973-04-07 1973-04-07 Device for the catalytic cleaning of exhaust gases

Publications (1)

Publication Number Publication Date
FR2333950A1 true FR2333950A1 (en) 1977-07-01

Family

ID=27184977

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7401130A Withdrawn FR2333950A1 (en) 1973-01-13 1974-01-14 Catalytic exhaust gas purifier - compensates catalytic carrier expansion by alternately fixed tantalum strips

Country Status (3)

Country Link
JP (1) JPS49101729A (en)
FR (1) FR2333950A1 (en)
IT (1) IT1002522B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0884460A3 (en) * 1997-06-12 2002-11-27 Emitec Gesellschaft für Emissionstechnologie mbH Exhaust system, suitable for retrofitting exhaust catalysts in motorcycles
EP1422396A1 (en) * 2002-11-20 2004-05-26 J. Eberspächer GmbH & Co. KG Multiple bed catalyst

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5224616A (en) * 1975-08-18 1977-02-24 Honda Motor Co Ltd Multi-channel reactor for internal combustion engine exhaust system
JPS59116519U (en) * 1983-01-27 1984-08-06 マツダ株式会社 catalytic converter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0884460A3 (en) * 1997-06-12 2002-11-27 Emitec Gesellschaft für Emissionstechnologie mbH Exhaust system, suitable for retrofitting exhaust catalysts in motorcycles
EP1422396A1 (en) * 2002-11-20 2004-05-26 J. Eberspächer GmbH & Co. KG Multiple bed catalyst
US7247280B2 (en) 2002-11-20 2007-07-24 J. Eberspächer GmbH & Co. KG Multi-bed catalyzer

Also Published As

Publication number Publication date
IT1002522B (en) 1976-05-20
JPS49101729A (en) 1974-09-26

Similar Documents

Publication Publication Date Title
CA962074A (en) Catalytic converter for removing pollutants from engine exhaust gas with electrically resistive catalyst support
IT1007921B (en) CATALYST FOR CAR EXHAUST GAS AND SUPPORT FOR CATA LYZER WITH HIGH SUPER FICIALE AREA
IT954461B (en) CATALYTIC CONVERTER FOR THE PURIFICATION OF EXHAUST GASES OF MOTOR VEHICLES
JPS5252193A (en) Catalyst for purifying exhaust gas from cars
IT1024781B (en) BODY INCLUDING CHANNELS FORMED BY CORRUGATED SHEETS, PARTICULARLY FOR THE CATALYTIC COMBUSTION OF ENGINE EXHAUST GASES, AND PROCEDURE FOR ITS MANUFACTURING
CA962461A (en) Catalytic converter for removing pollutants from engine exhaust gas
IT8026226A0 (en) PROCEDURE FOR THE PRODUCTION OF A SUPPORT MATRIX FOR CATALYTIC REACTOR FOR THE PURIFICATION OF EXHAUST GAS FROM COMBUSTION ENGINES, AND EXHAUST GAS CATALYST PRODUCED ACCORDING TO THIS PROCEDURE.
JPS5510043A (en) Exhaust gas purifier for engine attached to the outside of boat
GB1441170A (en) Exhaust manifold for an internal combustion engine
US3990856A (en) Thermal reactor with slidable support for inner core
GB1460799A (en) Holder for resiliently supporting a catalyst body in an exhaust gas pipe section of an ic engine
GB1474076A (en) Catalytic converter for automotive internal combustion engine
FR2333950A1 (en) Catalytic exhaust gas purifier - compensates catalytic carrier expansion by alternately fixed tantalum strips
CA1009219A (en) Catalyst for purifying exhaust gas
IT1014537B (en) PROCEDURE FOR THE PREPARATION OF A CATALYST FOR THE OXIDATION OF EXHAUST GASES OF CAR VEHICLES
GB1455351A (en) Catalytic element for catalytic converter
JPS52110317A (en) Exhaust system with catalytic converter
GB1470237A (en) Catalyst for exhaust gases and support therefor
GB1485848A (en) Catalytic converter housing
IT991990B (en) RADIAL FLOW CATALYTIC REACTOR FOR THE PURIFICATION OF EXHAUST GASES IN MOTOR VEHICLES
CA994318A (en) Catalyst, its method of producction and the utilisation of same for the purification of exhaust gases from internal combustion engines
GB1411487A (en) Reaction chamber for combustion of the carbon monoxide content of flue gas
GB1334810A (en) Internal combustion engine exhaust gas purification systems
JPS60225651A (en) Monolithic catalyst for purifying exhaust gas of car
ATE30259T1 (en) CATALYTIC EXHAUST CONTROL DEVICE.

Legal Events

Date Code Title Description
ST Notification of lapse