IT1006166B - Dispositivo per il controllo di reattori catalitici in impianti di depurazione dei gas di scari co di motori a combustione interna - Google Patents

Dispositivo per il controllo di reattori catalitici in impianti di depurazione dei gas di scari co di motori a combustione interna

Info

Publication number
IT1006166B
IT1006166B IT19845/74A IT1984574A IT1006166B IT 1006166 B IT1006166 B IT 1006166B IT 19845/74 A IT19845/74 A IT 19845/74A IT 1984574 A IT1984574 A IT 1984574A IT 1006166 B IT1006166 B IT 1006166B
Authority
IT
Italy
Prior art keywords
internal combustion
control
exhaust gases
combustion engines
catalytic reactors
Prior art date
Application number
IT19845/74A
Other languages
English (en)
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of IT1006166B publication Critical patent/IT1006166B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1479—Using a comparator with variable reference
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
    • G01N27/4175—Calibrating or checking the analyser
    • 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
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/02—Catalytic activity of catalytic converters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/09—Other ways of controlling
    • 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
    • Y02T10/40—Engine management systems

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)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
IT19845/74A 1973-01-31 1974-01-25 Dispositivo per il controllo di reattori catalitici in impianti di depurazione dei gas di scari co di motori a combustione interna IT1006166B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2304622A DE2304622A1 (de) 1973-01-31 1973-01-31 Einrichtung zur ueberwachung von katalytischen reaktoren in abgasentgiftungsanlagen von brennkraftmaschinen

Publications (1)

Publication Number Publication Date
IT1006166B true IT1006166B (it) 1976-09-30

Family

ID=5870461

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19845/74A IT1006166B (it) 1973-01-31 1974-01-25 Dispositivo per il controllo di reattori catalitici in impianti di depurazione dei gas di scari co di motori a combustione interna

Country Status (7)

Country Link
US (1) US3962866A (it)
JP (1) JPS49109721A (it)
DE (1) DE2304622A1 (it)
FR (1) FR2216016B1 (it)
GB (1) GB1466396A (it)
IT (1) IT1006166B (it)
NL (1) NL7401278A (it)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5070315U (it) * 1973-10-30 1975-06-21
DE2448306C2 (de) * 1974-10-10 1983-12-08 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffeinspritzanlage
DE2449836A1 (de) * 1974-10-19 1976-04-29 Bosch Gmbh Robert Einrichtung zur regelung des betriebsverhaltens einer brennkraftmaschine
GB1492284A (en) * 1974-11-06 1977-11-16 Nissan Motor Air fuel mixture control apparatus for internal combustion engines
US4027477A (en) * 1976-04-29 1977-06-07 General Motors Corporation Dual sensor closed loop fuel control system having signal transfer between sensors during warmup
JPS6020571B2 (ja) * 1976-06-11 1985-05-22 ロ−ベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 内燃機関に供給される燃料空気混合気の配合を決める制御方法
JPS5319887A (en) * 1976-08-08 1978-02-23 Nippon Soken Deterioration detecting apparatus for oxygen concentration detector
JPS5395431A (en) * 1977-02-01 1978-08-21 Toyota Motor Corp Trouble alarm device for air fuel ratio detector
DE2709215A1 (de) * 1977-03-03 1978-09-07 Bosch Gmbh Robert Ueberwachungsschaltung fuer die abgaszusammensetzung bei brennkraftmaschinen
DE2718907C2 (de) * 1977-04-28 1984-04-12 Robert Bosch Gmbh, 7000 Stuttgart Meßfühler zur Bestimmung des Sauerstoffgehalts in Abgasen
GB1604445A (en) * 1977-09-30 1981-12-09 Sybron Corp Device for monitoring a component in a fluid mixture
DE2758835C2 (de) * 1977-12-30 1985-11-14 Robert Bosch Gmbh, 7000 Stuttgart Meßfühleranordnung
JPS584985B2 (ja) * 1978-05-10 1983-01-28 株式会社日立製作所 ガス検知素子
EP0005613A3 (en) * 1978-05-15 1979-12-12 Allied Corporation Temperature circuit for oxygen sensor during warm-up
JPS5543433A (en) * 1978-09-25 1980-03-27 Toshiba Corp Alkali metal vapor concentration measuring unit
IT1145264B (it) * 1979-03-15 1986-11-05 Ricardo Consulting Eng Apparecchio e procedimento per determinare la concentrazione della miscela aria/combustibile alimentata ad un motore a combustione interna
DE2946775A1 (de) * 1979-11-20 1981-05-27 Brown, Boveri & Cie Ag, 6800 Mannheim Verfahren und vorrichtung fuer die von temperaturschwankungen unbeeinflusste bestimmung des sauerstoffgehaltes in gasen
DE3339429A1 (de) * 1983-10-29 1985-05-09 Volkswagenwerk Ag, 3180 Wolfsburg Einrichtung zur reduzierung von abgas-schadstoffen
USRE33942E (en) * 1985-02-22 1992-06-02 Toyota Jidosha Kabushiki Kaisha Double air-fuel ratio sensor system in internal combustion engine
DE3632480A1 (de) * 1985-12-23 1987-07-02 Junkalor Dessau Anordnung und verfahren zur kontrolle von waermebehandlungsprozessen
DE3619897C2 (de) * 1986-06-13 1993-10-07 Bayerische Motoren Werke Ag Schutz-Schaltung für katalytische Abgasnachbehandlungsvorrichtungen
DE3627437C2 (de) * 1986-08-13 1994-05-26 Bayerische Motoren Werke Ag Schutzvorrichtung für einen Abgas-Katalysator einer Brennkraftmaschine mit einer Lambda-Regeleinrichtung
JPS6383415U (it) * 1986-11-20 1988-06-01
DE3830515A1 (de) * 1988-09-08 1990-03-22 Bayerische Motoren Werke Ag Verfahren zur ueberpruefung der funktion des abgaskatalysators einer brennkraftmaschine
JPH03164549A (ja) * 1989-11-22 1991-07-16 Fuji Heavy Ind Ltd ２サイクルエンジンのエンジン制御装置
US5154055A (en) * 1990-01-22 1992-10-13 Nippondenso Co., Ltd. Apparatus for detecting purification factor of catalyst
GB9003316D0 (en) * 1990-02-14 1990-04-11 Lucas Ind Plc Monitoring of operation of catalytic converter
WO1991014856A1 (de) * 1990-03-19 1991-10-03 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren und vorrichtung zur steuerung eines verbrennungsmotors unter einbeziehung der aktuellen temperatur eines nachgeschalteten katalysators
RU2082888C1 (ru) * 1990-03-19 1997-06-27 Эмитек Гезельшафт Фюр Эмиссионстехнологи Мбх Способ контроля работы катализатора двигателя внутреннего сгорания, устройство для его осуществления и каталитический нейтрализатор
JPH0718368B2 (ja) * 1990-04-02 1995-03-06 トヨタ自動車株式会社 内燃機関の触媒劣化検出装置
DE4022546A1 (de) * 1990-07-16 1992-01-23 Emitec Emissionstechnologie Messfuehler fuer ein abgassystem und verfahren zu seinem betrieb
DE4024210C2 (de) * 1990-07-31 1999-09-02 Bosch Gmbh Robert Verfahren zur Lambdaregelung einer Brennkraftmaschine mit Katalysator
JP2943433B2 (ja) * 1990-08-24 1999-08-30 株式会社デンソー 触媒の浄化率検出装置
JP2705039B2 (ja) * 1990-08-28 1998-01-26 本田技研工業株式会社 内燃エンジンの三元触媒の劣化検出装置
DE4033026C2 (de) * 1990-10-18 1997-09-04 Bayerische Motoren Werke Ag Verfahren zur Vermeidung thermisch kritischer Zustände einer Abgasnachbehandlungsvorrichtung für eine Brennkraftmaschine
DE4039429A1 (de) * 1990-12-11 1992-06-17 Abb Patent Gmbh Verfahren und vorrichtung zur ueberpruefung eines katalysators
DE4039762A1 (de) * 1990-12-13 1992-06-17 Bosch Gmbh Robert Verfahren und vorrichtung zum ueberpruefen des alterungszustandes eines katalysators
DE4112478C2 (de) * 1991-04-17 2001-03-08 Bosch Gmbh Robert Verfahren und Vorrichtung zum Beurteilen des Alterungszustandes eines Katalysators
DE4112479C2 (de) * 1991-04-17 2002-06-06 Bosch Gmbh Robert Verfahren und Vorrichtung zum Bestimmen des Alterungszustandes eines Katalysators
DE4112477C2 (de) * 1991-04-17 2001-03-08 Bosch Gmbh Robert Verfahren und Vorrichtung zum Simulieren des zeitlichen Verhaltens des Lambda-Wertes am Auslaß eines Abgaskatalysators und zur Betimmung des Alterungszustandes des Katalysators
DE4113316C2 (de) * 1991-04-24 2003-09-11 Bosch Gmbh Robert Anschlußschaltung für eine Lambdasonde und Prüfverfahren für eine solche Schaltung
US5268086A (en) * 1991-08-07 1993-12-07 Ford Motor Company Catalyst monitoring using ego sensors
US5363091A (en) * 1991-08-07 1994-11-08 Ford Motor Company Catalyst monitoring using ego sensors
DE4128823C2 (de) * 1991-08-30 2000-06-29 Bosch Gmbh Robert Verfahren und Vorrichtung zum Bestimmen des Speichervermögens eines Katalysators
US5177464A (en) * 1991-09-04 1993-01-05 Ford Motor Company Catalyst monitoring using a hydrocarbon sensor
US5408215A (en) * 1991-09-04 1995-04-18 Ford Motor Company Catalyst monitoring using a hydrocarbon sensor
DE4137626A1 (de) * 1991-11-15 1993-05-19 Bosch Gmbh Robert Anschlussschaltung fuer eine sauerstoffsonde und pruefverfahren fuer richtigen sondenanschluss
DE4139560C2 (de) * 1991-11-30 2001-02-22 Bosch Gmbh Robert Verfahren und Vorrichtung zum Gewinnen eines Beurteilungswertes für den Alterungszustand eines Katalysators
JP3180398B2 (ja) * 1991-12-27 2001-06-25 株式会社デンソー 内燃機関の触媒劣化検出装置
DE4211092A1 (de) * 1992-04-03 1993-10-07 Bosch Gmbh Robert Verfahren und Vorrichtung zum Beurteilen der Funktionsfähigkeit eines Katalysators
US5319921A (en) * 1992-08-04 1994-06-14 Ford Motor Company Catalytic converter efficiency monitoring
US5265416A (en) * 1992-08-27 1993-11-30 Ford Motor Company On-board catalytic converter efficiency monitoring
US5417058A (en) * 1992-09-30 1995-05-23 Toyota Jidosha Kabushiki Kaisha Device for detecting deterioration of a catalytic converter for an engine
US5289678A (en) * 1992-11-25 1994-03-01 Ford Motor Company Apparatus and method of on-board catalytic converter efficiency monitoring
US5291673A (en) * 1992-12-21 1994-03-08 Ford Motor Company Oxygen sensor system with signal correction
DE4320881A1 (de) * 1993-02-26 1994-09-01 Roth Forschung Gmbh & Co Autom Kombination von Lambda-Sonden
DE59404036D1 (de) * 1993-02-26 1997-10-16 Roth Technik Gmbh Kombination von lambda-sonden
JP3266699B2 (ja) * 1993-06-22 2002-03-18 株式会社日立製作所 触媒の評価方法及び触媒効率制御方法ならびにＮＯｘ浄化触媒評価装置
US5539638A (en) * 1993-08-05 1996-07-23 Pavilion Technologies, Inc. Virtual emissions monitor for automobile
US5386373A (en) * 1993-08-05 1995-01-31 Pavilion Technologies, Inc. Virtual continuous emission monitoring system with sensor validation
JPH08177471A (ja) * 1994-12-28 1996-07-09 Yamaha Motor Co Ltd ２サイクルエンジン
DE19506012C2 (de) * 1995-02-17 1998-12-10 Siemens Ag Vorrichtung zur Anpassung von Verfahren zur Katalysatorwirkungsgradüberprüfung an Katalysatoren für Brennkraftmaschinen mit zwei Lambdasonden
US5970426A (en) * 1995-09-22 1999-10-19 Rosemount Analytical Inc. Emission monitoring system
DE19541903A1 (de) * 1995-11-10 1997-05-15 Bayerische Motoren Werke Ag Überwachungssystem für die Abgasreinigung einer Brennkraftmaschine
DE19757112C2 (de) * 1997-09-15 2001-01-11 Heraeus Electro Nite Int Gassensor
DE19805928C2 (de) * 1998-02-13 2002-12-05 Daimler Chrysler Ag Verfahren zur Bestimmung des Füllgrads oder der Güte eines Gase speichernden Katalysators
DE19850338C2 (de) * 1998-11-02 2001-11-22 Heraeus Electro Nite Int Verfahren und Einrichtung zur Kontrolle und Beobachtung der Alterung eines Katalysators im Abgas von Verbrennungskraftmaschinen und des Schadstoffausstoßes
DE102005002237A1 (de) * 2005-01-18 2006-07-20 Robert Bosch Gmbh Verfahren zum Betreiben einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens
WO2006101987A2 (en) * 2005-03-17 2006-09-28 Southwest Research Institute Use of recirculated exhaust gas in a burner-based exhaust generation system for reduced fuel consumption and for cooling
DE102006054164B3 (de) * 2006-11-16 2008-04-24 Tyco Electronics Raychem Gmbh Verfahren zum Verarbeiten eines analogen Sensorsignals in einer Gassensoranordnung und Messwertverarbeitungsvorrichtung
DE102007001417B4 (de) * 2007-01-09 2009-11-12 Ford Global Technologies, LLC, Dearborn Vorrichtung zur Abschätzung des Beladungszustandes eines NOx-Speicherkatalysators
CN204357543U (zh) * 2014-11-21 2015-05-27 康明斯排放处理公司 氮氧化物信号多路复用系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB901711A (en) * 1957-10-02 1962-07-25 Maschf Augsburg Nuernberg Ag Improvements in and relating to internal combustion engines
US3441381A (en) * 1965-06-22 1969-04-29 Engelhard Ind Inc Apparatus for purifying exhaust gases of an internal combustion engine
US3620931A (en) * 1968-11-12 1971-11-16 Westinghouse Electric Corp Gas analysis method
US3768259A (en) * 1971-07-06 1973-10-30 Universal Oil Prod Co Control for an engine system
US3766536A (en) * 1971-12-15 1973-10-16 Gen Motors Corp Catalytic converter monitor
DE2204286A1 (de) * 1972-01-29 1973-08-02 Bosch Gmbh Robert Einrichtung zur kontrolle der temperatur des auspuffsystems einer brennkraftmaschine
US3785151A (en) * 1972-10-10 1974-01-15 Gen Motors Corp Exhaust gas recirculation system

Also Published As

Publication number Publication date
FR2216016A1 (it) 1974-08-30
NL7401278A (it) 1974-08-02
JPS49109721A (it) 1974-10-18
FR2216016B1 (it) 1978-03-10
US3962866A (en) 1976-06-15
GB1466396A (en) 1977-03-09
DE2304622A1 (de) 1974-08-15

Similar Documents

Publication Publication Date Title
IT1006166B (it) Dispositivo per il controllo di reattori catalitici in impianti di depurazione dei gas di scari co di motori a combustione interna
IT996622B (it) Dispositivo per la depurazione dei gas di scarico di motori a combustione interna
IT1070099B (it) Catalizzatore supportato monolitico e disposizione di catalizzatori supportati monolitici per la depurazione dei gas di scarico di motori a combustione
IT961314B (it) Perfezionamento nei reattori per la purificazone dei gas di scarico di motori a combustione interna
IT8067131A0 (it) Catalizzatore per la depurazione dei gas di scarico di motori a combustione interna
IT978623B (it) Dispositivo per la depurazione catalitica dei gas di scarico di motori a combustione
IT1006851B (it) Dispositivo per la depurazione del gas di scarico di motori a combu stione interna
IT1002320B (it) Dispositivo di svelenamento cata litico per il trattamento dei gas di scarico dei motori a combustione
IT1006850B (it) Dispositivo di regolazione per la depurazione del gas di scarico di motori a combustione interna
IT8068354A0 (it) Dispositivo per la depurazione per via catalitica dei gas di scaricodi motori a combustione interna
IT999598B (it) Collettore di scarico per motori a combustione interna con reattore catalitico di decontaminazione dei gas di scarico
IT1044448B (it) Dispositivo per la depusazione catalitica dei gas di scarico di notori a combustione interna in particolare di motori a combustione interna di autoveicoli
IT1020771B (it) Dispositivo di comando per il rici clo dei gas di scarico di motori a combustione interna
IT945421B (it) Reattore di postcombustione dei gas di scarico di un motore a combustione interna
IT1002450B (it) Dispositivo di comando per valvole di ricircolazione dei gas di sca rico in motori a combustione inter na
IT998750B (it) Dispositivo per la depurazione dei gas di scarico di motori a combu stione interna
IT976245B (it) Reattore a gas particolarmente per la combustione dei gas di scari co di motori
IT1009757B (it) Filtro per impianti di riciclo dei gas di scarico di motori endotermici
IT1027538B (it) Sistema di scarico dei gas combusti in motori a combustione interna per mutomobili
IT1055809B (it) Sistema per sorvegliare la composizione dei gas di combustione particolarmente per motori a combustione interna
IT1030447B (it) Rettore catalitico per il disin quinamento dei gas di scarico di motori
IT1009140B (it) Dispositivo di svelenamento dei gas di scarico dei motori a combustione interna con carburatore
IT1051500B (it) Procedimento e catalizzatore per la depurazione dei gas di scarico dei motori a scoppio o a combustione in terna
IT983725B (it) Reattore depuratore per gas di scarico di motori a combustione
IT1015340B (it) Apparecchiatura purificatrice cata litica in particolare per gas di scarico di motori a combustione