MY112813A - Electrically heatable catalyst - Google Patents

Electrically heatable catalyst

Info

Publication number
MY112813A
MY112813A MYPI95002780A MYPI19952780A MY112813A MY 112813 A MY112813 A MY 112813A MY PI95002780 A MYPI95002780 A MY PI95002780A MY PI19952780 A MYPI19952780 A MY PI19952780A MY 112813 A MY112813 A MY 112813A
Authority
MY
Malaysia
Prior art keywords
honeycomb body
jacket tube
joined
outer jacket
disposed
Prior art date
Application number
MYPI95002780A
Inventor
Maus Wolfgang
Bruck Rolf
Kruse Carsten
Original Assignee
Emitec Ges Fur 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 Ges Fur Emissionstechnologie Mbh filed Critical Emitec Ges Fur Emissionstechnologie Mbh
Publication of MY112813A publication Critical patent/MY112813A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/33Electric or magnetic properties
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/18Exhaust 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 methods of operation; Control
    • F01N3/20Exhaust 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 methods of operation; Control specially adapted for catalytic conversion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F01N13/0097Exhaust 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/18Exhaust 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 methods of operation; Control
    • F01N3/20Exhaust 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 methods of operation; Control specially adapted for catalytic conversion
    • F01N3/2006Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • F01N3/2026Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • F01N3/28Construction of catalytic reactors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust 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
    • F01N3/24Exhaust 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
    • F01N3/28Construction of catalytic reactors
    • F01N3/2839Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2842Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2330/00Structure of catalyst support or particle filter
    • F01N2330/02Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

THE SUBJECT OF THE INVENTION IS A DEVICE FOR CATALYTICALLY CONVERTING EXHAUST GASES IN AN EXHAUST SYSTEM, ESPECIALLY FOR AN EXHAUST SYSTEM OF AN INTERNAL COMBUSTION ENGINE, PREFERABLY FOR OTTO ENGINES. THE DEVICE INCLUDES AT LEAST TWO HONEYCOMB BODIES (2, 3), DISPOSED IN AN OUTER JACKET TUBE (1) AND THROUGH WHICH AN EXHAUST GAS (G) CAN FLOW IN SUCCESSION, THE ADJACENT HONEYCOMB BODY (3) BEING JOINED TO ONE ANOTHER BY MEANS OF SUPPORT ELEMENTS <12) PROTRUDING INTO THE HONEYCOMB BODIES <2, 3) .THE HONEYCOMB BODY (2) IS DISPOSED IN SPACED-APART FASHION RELATIVE TO THE OUTER JACKET TUBE (1) AND HAS AT LEAST TWO SHELLS <4, 5) JOINED TO THE JACKET FACE OF THE HONEYCOMB BODY (2), WHICH ARE EACH CONNECTED TO AN ELECTRICAL POWER LEAD (6, 7) .THE DEVICE ALSO HAS ELECTRICALLY INSULATING JOINING ELEMENTS (15), AND EACH JOINING ELEMENT (15) IS JOINED BY ONE END TO THE SHELL (5 OR 4, AS APPLICABLE) AND BY ITS OTHER END TO THE ADJACENT HONEYCOMB BODY (3) .THE OUTER JACKET TUBE IS EMBODIED WITH AT LEAST ONE ENCOMPASSING BEAD <16), WHICH RESTS ON THE JACKET TUBE (14) OF THE ADJACENT HONEYCOMB BODY (3).FIG. 1
MYPI95002780A 1994-09-28 1995-09-20 Electrically heatable catalyst MY112813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4434673A DE4434673A1 (en) 1994-09-28 1994-09-28 Electrically heated catalyst

Publications (1)

Publication Number Publication Date
MY112813A true MY112813A (en) 2001-09-29

Family

ID=6529427

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI95002780A MY112813A (en) 1994-09-28 1995-09-20 Electrically heatable catalyst

Country Status (11)

Country Link
EP (1) EP0783621B1 (en)
JP (1) JP3633938B2 (en)
KR (1) KR100225195B1 (en)
AU (1) AU3698695A (en)
BR (1) BR9509038A (en)
DE (2) DE4434673A1 (en)
ES (1) ES2115399T3 (en)
MY (1) MY112813A (en)
RU (1) RU2141040C1 (en)
TW (1) TW319806B (en)
WO (1) WO1996010127A1 (en)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537131A1 (en) * 1995-10-05 1997-04-10 Emitec Emissionstechnologie Electrically heatable honeycomb body with stiffened power distribution structures
DE19800654A1 (en) * 1998-01-09 1999-07-15 Emitec Emissionstechnologie Heated catalyst arrangement with an upstream water trap
DE19806033A1 (en) * 1998-02-13 1999-08-19 Emitec Emissionstechnologie Arrangement and method for implementing at least one exhaust gas component of an exhaust gas stream of an internal combustion engine
DE19943846A1 (en) 1999-09-13 2001-03-15 Emitec Emissionstechnologie Device with heating element for exhaust gas cleaning
DE10000568C2 (en) * 2000-01-10 2003-08-14 Emitec Emissionstechnologie Thermally insulated exhaust gas cleaning system
DE10055447B4 (en) * 2000-11-09 2010-11-04 Emitec Gesellschaft Für Emissionstechnologie Mbh Electrically insulating connecting element and method for its production
KR20030018098A (en) * 2001-08-27 2003-03-06 현대자동차주식회사 metallic substrate of catalytic converter
DE102007010758A1 (en) 2007-03-06 2008-09-11 Emitec Gesellschaft Für Emissionstechnologie Mbh Electrically heatable honeycomb body and method for its operation
DE102007025419A1 (en) 2007-05-31 2008-12-04 Emitec Gesellschaft Für Emissionstechnologie Mbh Method for operating a motor vehicle with an exhaust gas heating device
DE102007025418A1 (en) * 2007-05-31 2008-12-04 Emitec Gesellschaft Für Emissionstechnologie Mbh Electrically heatable honeycomb body with zones of increased resistance
DE102007025417A1 (en) 2007-05-31 2008-12-04 Emitec Gesellschaft Für Emissionstechnologie Mbh Electrically heatable honeycomb arrangement with support pins
JP5183162B2 (en) 2007-11-15 2013-04-17 川崎重工業株式会社 Exhaust purification device
DE102008035561A1 (en) * 2008-07-30 2010-02-04 Emitec Gesellschaft Für Emissionstechnologie Mbh Method for operating a device comprising at least one electrically heatable honeycomb body
DE102008048314A1 (en) 2008-08-06 2010-04-08 Man Nutzfahrzeuge Aktiengesellschaft Exhaust gas after-treatment element for removing pollutants and / or particles from the exhaust gas of an internal combustion engine
DE102009041092A1 (en) 2009-09-14 2011-03-24 Emitec Gesellschaft Für Emissionstechnologie Mbh Exhaust treatment device with two honeycomb bodies for generating an electrical potential
US9060387B2 (en) * 2010-08-23 2015-06-16 Toyota Jidosha Kabushiki Kaisha Electric heating catalyst
DE102010052650A1 (en) * 2010-11-26 2012-05-31 Emitec Gesellschaft Für Emissionstechnologie Mbh Connection of two exhaust treatment devices to each other
DE102011110664A1 (en) 2011-08-19 2013-02-21 Emitec Gesellschaft Für Emissionstechnologie Mbh Device for the treatment of exhaust gases
DE102011120720A1 (en) 2011-12-12 2013-06-13 Emitec Gesellschaft Für Emissionstechnologie Mbh Support pin for an electrically heatable honeycomb body
RU2595463C2 (en) * 2012-01-13 2016-08-27 Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх Electrically heated honeycomb body with multiple layers of sheet metal electrically connected with connecting pin
DE102012007020A1 (en) 2012-04-05 2013-10-10 Emitec Gesellschaft Für Emissionstechnologie Mbh Electrical connection of several sheet metal layers of an electrically heatable honeycomb body and associated honeycomb body
DE102012005786A1 (en) 2012-03-21 2013-09-26 Emitec Gesellschaft Für Emissionstechnologie Mbh Non-rotating electrical connection, in particular for an electrically heatable honeycomb body
DE102014115063A1 (en) 2014-10-16 2016-04-21 Continental Automotive Gmbh Support structure, device for the treatment of exhaust gases and method for their production
DE102014115923A1 (en) 2014-10-31 2016-05-04 Continental Automotive Gmbh Honeycomb body with electric heater
DE102015212705A1 (en) 2015-07-07 2017-01-12 Continental Automotive Gmbh Layer package contacting for electrically heated honeycomb bodies
DE102016203017B3 (en) * 2016-02-25 2017-08-10 Continental Automotive Gmbh Process for the preparation of a catalyst
DE102016209282B4 (en) 2016-05-30 2023-01-12 Vitesco Technologies GmbH Electrical connection, in particular for an electrically heatable honeycomb body
DE102018104602A1 (en) * 2018-02-28 2019-08-29 Elringklinger Ag Heating system and method for its production
DE102017210839A1 (en) 2017-06-27 2018-12-27 Elringklinger Ag heating system
EP3636043B1 (en) 2017-06-27 2023-09-20 ElringKlinger AG Shielding element
DE102018200464A1 (en) 2018-01-12 2019-07-18 Continental Automotive Gmbh Apparatus and method for heating a device for exhaust aftertreatment
DE102018104601A1 (en) 2018-02-28 2019-08-29 Elringklinger Ag Heating system and its use
DE102018117049A1 (en) 2018-07-13 2020-01-16 Elringklinger Ag fluid line
DE102018213358A1 (en) * 2018-08-08 2020-02-13 Gedeco Ag Support pin and catalyst
DE102018217174B4 (en) * 2018-10-08 2020-07-09 Vitesco Technologies GmbH Electrically heated catalytic converter and method for operating an electrically heated catalytic converter
DE102018217569A1 (en) * 2018-10-15 2019-11-07 Continental Automotive Gmbh Method for the electrical heating of components of an exhaust aftertreatment system of an internal combustion engine
DE102019218354A1 (en) * 2019-11-27 2021-05-27 Vitesco Technologies GmbH Device for exhaust aftertreatment
DE102019218885B4 (en) * 2019-12-04 2021-06-17 Vitesco Technologies GmbH Support pin for catalytic converter with electric heating disk
DE102019133509B4 (en) * 2019-12-09 2025-03-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Method for operating an exhaust system and exhaust system
DE102020206293A1 (en) 2020-05-19 2021-11-25 Vitesco Technologies GmbH Electrical implementation
DE102021205533A1 (en) 2020-11-27 2022-06-02 Vitesco Technologies GmbH Method and device for electrically heating an exhaust gas catalytic converter
DE102021202901B4 (en) * 2021-03-24 2022-10-27 Vitesco Technologies GmbH Exhaust gas aftertreatment device and method for producing same
DE102021118935A1 (en) 2021-07-22 2023-01-26 Vitesco Technologies GmbH Battery management method and battery management system for an on-board battery of a hybrid motor vehicle
DE102021128796A1 (en) 2021-11-05 2023-05-11 Elringklinger Ag Electrical power feedthrough
DE102022209924A1 (en) 2022-09-21 2024-03-21 Vitesco Technologies GmbH Method for heating an exhaust gas catalytic converter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0721855Y2 (en) * 1987-07-10 1995-05-17 日産自動車株式会社 Catalytic converter device
DE8900168U1 (en) * 1989-01-09 1989-03-16 Emitec Gesellschaft für Emissionstechnologie mbH, 53797 Lohmar Assembled piece made of sheet metal honeycomb bodies
DE4024942A1 (en) * 1990-08-06 1992-02-13 Emitec Emissionstechnologie MONOLITHIC METAL HONEYCOMB WITH VARIOUS CHANNEL NUMBER
EP0569403B1 (en) * 1991-01-31 1995-06-07 Emitec Gesellschaft für Emissionstechnologie mbH Honeycomb body with a plurality of mutually supported discs
DE4129894A1 (en) * 1991-09-09 1993-03-11 Emitec Emissionstechnologie ELECTRICAL INSULATION OF STRUCTURES IN A HONEYCOMB BODY, IN PARTICULAR AN ELECTRICALLY HEATED CATALYST CARRIER BODY
US5140812A (en) * 1991-11-05 1992-08-25 W. R. Grace & Co.-Conn. Core for an electrically heatable catalytic converter
JP3130354B2 (en) * 1991-12-21 2001-01-31 トヨタ自動車株式会社 Electric heating type catalyst device
JP2649461B2 (en) * 1991-12-25 1997-09-03 トヨタ自動車株式会社 Carrier structure for exhaust gas purification catalyst

Also Published As

Publication number Publication date
JP3633938B2 (en) 2005-03-30
BR9509038A (en) 1998-06-23
TW319806B (en) 1997-11-11
DE59501611D1 (en) 1998-04-16
KR100225195B1 (en) 1999-10-15
EP0783621A1 (en) 1997-07-16
AU3698695A (en) 1996-04-19
WO1996010127A1 (en) 1996-04-04
KR970706445A (en) 1997-11-03
DE4434673A1 (en) 1996-04-04
RU2141040C1 (en) 1999-11-10
EP0783621B1 (en) 1998-03-11
ES2115399T3 (en) 1998-06-16
JPH10506167A (en) 1998-06-16

Similar Documents

Publication Publication Date Title
MY112813A (en) Electrically heatable catalyst
CA2256769A1 (en) Free-standing internally insulating liner
GB2048104B (en) Catalytic converters for internal combustion engine exhaust gases
GB2265843B (en) Exhaust gas conduit of an internal combustion engine with a starting catalyser arranged near the engine
FI894228A0 (en) Catalyst for the purification of exhaust gases from an internal combustion engine with reduced hydrogen sulphide emissions and its manufacture and use
NL192786B (en) Vessel with at least one internal combustion engine and an exhaust gas system.
DE3571854D1 (en) Muffler for exhaust gas from internal combustion engine
ES8706900A1 (en) Multi-partite exhaust gas line
NO980379L (en) Combustion engine of the diesel type for combustion of gas and procedure for supplying fuel to such an engine
EP0943787A3 (en) Exhaust gas purification device for an internal combustion engine
GB2096011B (en) Exhaust manifold for an internal combustion engine apparatus for the catalytic transformation of fuel and improved internal combustion engine
SE7902411L (en) CATALYTIC CONVERTER FOR EXHAUST CLEANING
IT8467363A0 (en) PROCEDURE AND DEVICE FOR THE PURIFICATION OF EXHAUST GASES EMITTED FOR EXAMPLE BY HOME HEATING SYSTEMS INTERNAL COMBUSTION ENGINES AND SIMILAR
GB2048105B (en) Catalytic converters for internal combustion engine exhaust gases
AU3106789A (en) Exhaust gas muffler for an internal combustion engine
EP0786585A3 (en) Catalytic device for cleaning exhaust gases of an internal combustion engine
MY115369A (en) Exhaust system for an internal combustion engine utilizing a heated catalyst within a housing, wherein the housing is electrically isolated from the exhaust gas system
DE59705381D1 (en) Holding an exhaust gas recirculation line on the engine housing of an internal combustion engine
PL238691A1 (en) Piston-type internal combustion engine with resonant exhaust gas system
AU2188601A (en) Apparatus for treatment of exhaust gas
EP0174919A3 (en) Catalytic off gas purification device
TW368550B (en) Device for conducting an exhaust gas mass flow and/or for receiving a catalytic converter supporting body
GB2022697A (en) Improvements in or relating to exhaust gas silencers for internal combustion engines
ZA967641B (en) Exhaust gas catalyser for internal combustion engines.
IT8747518A0 (en) INTERNAL COMBUSTION ENGINES EXHAUST GAS PURIFICATION EQUIPMENT WITH METALLIC MATRIX CATALYST WELDED IN THE CASING