FR2145292A5 - - Google Patents

Info

Publication number
FR2145292A5
FR2145292A5 FR7224446A FR7224446A FR2145292A5 FR 2145292 A5 FR2145292 A5 FR 2145292A5 FR 7224446 A FR7224446 A FR 7224446A FR 7224446 A FR7224446 A FR 7224446A FR 2145292 A5 FR2145292 A5 FR 2145292A5
Authority
FR
France
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
Application number
FR7224446A
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.)
Universal Oil Products Co
Original Assignee
Universal Oil Products Co
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 Universal Oil Products Co filed Critical Universal Oil Products Co
Application granted granted Critical
Publication of FR2145292A5 publication Critical patent/FR2145292A5/fr
Expired legal-status Critical Current

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
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • 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
    • F01N13/008—Mounting or arrangement of exhaust sensors in or on 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
    • 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
    • F01N3/18—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 methods of operation; Control
    • F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • 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
    • F01N3/18—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 methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • 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
    • F01N3/18—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 methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F01N3/222—Control of additional air supply only, e.g. using by-passes or variable air pump drives using electric valves only
    • 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
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
    • F02D41/1476—Biasing of the sensor
    • 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
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/4065—Circuit arrangements specially adapted therefor
    • 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
    • F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
    • F01N2430/06—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by varying fuel-air ratio, e.g. by enriching fuel-air mixture
    • 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
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Toxicology (AREA)
  • Analytical Chemistry (AREA)
  • Electrochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
  • Exhaust Gas After Treatment (AREA)
FR7224446A 1971-07-06 1972-07-06 Expired FR2145292A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15993671A 1971-07-06 1971-07-06

Publications (1)

Publication Number Publication Date
FR2145292A5 true FR2145292A5 (fr) 1973-02-16

Family

ID=22574744

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7224446A Expired FR2145292A5 (fr) 1971-07-06 1972-07-06

Country Status (6)

Country Link
US (1) US3768259A (fr)
CA (1) CA992644A (fr)
DE (1) DE2233299B2 (fr)
FR (1) FR2145292A5 (fr)
GB (1) GB1387870A (fr)
IT (1) IT965886B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2279938A1 (fr) * 1974-05-11 1976-02-20 Bosch Gmbh Robert Appareil de commande pour regler l'introduction d'air d'addition dans les gaz d'echappement d'un moteur a combustion interne
FR2414625A1 (fr) * 1978-01-16 1979-08-10 Engelhard Min & Chem Dispositif de commande de combustion pour un moteur a combustion interne utilisant des carburants comportant une proportion variable d'hydrocarbures partiellement oxydes

Families Citing this family (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2158119A1 (de) * 1971-11-24 1973-05-30 Bosch Gmbh Robert Abgasentgiftungsanlage
JPS5225884B2 (fr) * 1971-12-29 1977-07-11
DE2202614A1 (de) * 1972-01-20 1973-08-02 Bosch Gmbh Robert Abgasnachverbrennungseinrichtung
US3949551A (en) * 1972-01-29 1976-04-13 Robert Bosch G.M.B.H. Method and system for reducing noxious components in the exhaust emission of internal combustion engine systems and particularly during the warm-up phase of the engine
DE2215533C3 (de) * 1972-03-30 1979-11-22 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur Verminderung der schädlichen Anteile in den Abgasen einer Brennkraftmaschine
DE2216705C3 (de) * 1972-04-07 1978-06-08 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und Vorrichtung zum Entgiften der Abgase einer Brennkraftmaschine
US3896616A (en) * 1972-04-21 1975-07-29 Engelhard Min & Chem Process and apparatus
US3928161A (en) * 1972-04-25 1975-12-23 Westinghouse Electric Corp Gas measuring probe for industrial applications
JPS5440691B2 (fr) * 1972-05-31 1979-12-05
US4364356A (en) * 1972-09-06 1982-12-21 Uop Inc. Exhaust emissions control system
DE2245029C3 (de) * 1972-09-14 1981-08-20 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und Vorrichtung zur Abgasentgiftung von Brennkraftmaschinen
DE2246625C3 (de) * 1972-09-22 1982-02-18 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffzumeßanlage
DE2254961C2 (de) * 1972-11-10 1975-04-10 Deutsche Vergaser Gmbh & Co Kg, 4040 Neuss Regeleinrichtung für die Zumessung einer Zusatzluftmenge zur Verbesserung der Verbrennung in Brennkraftmaschinen oder der Nachverbrennung der Abgase von Brennkraftmaschinen
US4007589A (en) * 1973-01-31 1977-02-15 Robert Bosch G.M.B.H. Internal combustion exhaust catalytic reactor monitoring system
DE2304622A1 (de) * 1973-01-31 1974-08-15 Bosch Gmbh Robert Einrichtung zur ueberwachung von katalytischen reaktoren in abgasentgiftungsanlagen von brennkraftmaschinen
FR2224043A5 (fr) * 1973-03-28 1974-10-25 Bosch Gmbh Robert
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JPS5326253B2 (fr) * 1973-05-16 1978-08-01
JPS5213267B2 (fr) * 1973-05-17 1977-04-13
DE2326718C2 (de) * 1973-05-25 1975-08-28 Deutsche Vergaser Gmbh & Co Kg, 4040 Neuss Regeleinrichtung für die Zumessung einer Zusatzluftmenge zur Verbesserung der Verbrennung in Brennkraftmaschinen oder der Nachverbrennung der Abgase von Brennkraftmaschinen
JPS5021122A (fr) * 1973-06-27 1975-03-06
DE2333072A1 (de) * 1973-06-29 1975-01-16 Bosch Gmbh Robert Verfahren zum entgiften der abgase
US3915135A (en) * 1973-07-02 1975-10-28 Ford Motor Co Circuit for converting a temperature dependent input signal to a temperature independent output signal
NL7309537A (nl) * 1973-07-09 1975-01-13 Philips Nv Gasanalyse-apparaat.
DE2335403C3 (de) * 1973-07-12 1982-01-07 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur Überwachung des Gehaltes an Stickoxiden in Abgasen, insbesondere in Kfz.-Abgasen, sowie Sensor zur Durchführung des Verfahrens
JPS5213583B2 (fr) * 1973-07-26 1977-04-15
JPS5624769B2 (fr) * 1973-08-17 1981-06-08
JPS5334077B2 (fr) * 1973-08-29 1978-09-19
US3909385A (en) * 1973-09-04 1975-09-30 Universal Oil Prod Co Oxygen sensor for automotive use
JPS5219254B2 (fr) * 1973-09-19 1977-05-26
US3950944A (en) * 1973-11-14 1976-04-20 Toyo Kogyo Co., Ltd. Exhaust gas cleaning system for the internal combustion engine
US3844920A (en) * 1973-11-21 1974-10-29 Gen Motors Corp Air fuel ratio sensor
US3847778A (en) * 1973-11-26 1974-11-12 Gen Motors Corp Air-fuel ratio sensor
DE2410644A1 (de) * 1974-03-06 1975-09-18 Reinhold Dipl Ing Schmidt Anordnungen an brennkraftmaschinen und/oder feuerungsanlagen bei methanol-betrieb
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US4132615A (en) * 1974-04-05 1979-01-02 Robert Bosch Gmbh Internal combustion engine exhaust gas oxygen sensor and catalyzer combination
US3936794A (en) * 1974-06-27 1976-02-03 Ford Motor Company Exhaust gas sensor probe
US3906721A (en) * 1974-08-22 1975-09-23 Gen Motors Corp Thermoelectric exhaust gas sensor
CA1015827A (en) * 1974-11-18 1977-08-16 General Motors Corporation Air/fuel ratio sensor having catalytic and noncatalytic electrodes
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US3940327A (en) * 1975-04-11 1976-02-24 Universal Oil Products Company Oxygen sensing device
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IT1073650B (it) * 1975-07-31 1985-04-17 Ntn Toyo Bearing Co Ltd Dispositivo per la compensazione del rapporto aria combustibile per motori a combustione interna
US4040929A (en) * 1975-09-15 1977-08-09 Universal Oil Products Company Oxygen sensor having thin film electrolyte
DE2552207A1 (de) * 1975-11-21 1977-06-08 Bosch Gmbh Robert Vorrichtung zur regelung des einer brennkraftmaschine zugefuehrten kraftstoff-luft-gemisches
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US4207737A (en) * 1976-07-28 1980-06-17 Toyota Jidosha Kogyo Kabushiki Kaisha Apparatus for controlling the amount of secondary air injection
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JPS5339790A (en) * 1976-09-22 1978-04-11 Nissan Motor Oxygen sensor
JPS5853306B2 (ja) * 1976-10-18 1983-11-28 日産自動車株式会社 ガス濃度検出装置
JPS5371712A (en) * 1976-12-07 1978-06-26 Toyota Motor Corp Exhaust gas purifier for internal combustion engine
US4199938A (en) * 1976-12-26 1980-04-29 Nippon Soken, Inc. Method of operating a three-way catalyst for internal combustion engines
JPS5924247B2 (ja) * 1977-01-28 1984-06-08 株式会社日本自動車部品総合研究所 内燃機関の排気ガス浄化装置
US4161926A (en) * 1977-04-06 1979-07-24 Uriel Vogel Engine parameter modulation
US4123344A (en) * 1977-04-15 1978-10-31 Bendix Autolite Corporation Two fire ceramic sealed oxygen sensing device and method of forming same
JPS5562349A (en) * 1978-11-02 1980-05-10 Nissan Motor Co Ltd Measuring method for air fuel ratio
US4199425A (en) * 1978-11-30 1980-04-22 General Motors Corporation Solid electrolyte exhaust gas sensor with increased NOx sensitivity
DE2908368C2 (de) * 1979-03-03 1985-05-09 Schott Glaswerke, 6500 Mainz Meßsonde zur Bestimmung des Sauerstoff-Partialdruckes in heißen Medien
DE2908308A1 (de) * 1979-03-03 1980-09-04 Jenaer Glaswerk Schott & Gen Messonde zur bestimmung des sauerstoff- partialdruckes in gasen
FR2455277A1 (fr) * 1979-04-25 1980-11-21 Thomson Csf Dispositif de mesure du niveau de concentration du monoxyde de carbone dans les gaz degages par une combustion, son procede de fabrication et systeme de regulation comportant un tel dispositif
JPS6042367Y2 (ja) * 1979-09-28 1985-12-26 日産自動車株式会社 空燃比制御装置
US4289802A (en) * 1979-11-28 1981-09-15 General Motors Corporation Porous cermet electrode and method of making same
FR2494445A1 (fr) * 1980-11-17 1982-05-21 Socapex Capteur electrochimique des concentrations d'especes dans un melange fluide et systeme de regulation de la richesse d'un melange air-carburant mettant en oeuvre un tel capteur
DE3409045C1 (de) * 1984-03-13 1985-10-17 Daimler Benz Ag Messfuehleranordnung in einem Abgasrohr fuer Verbrennungsmotoren
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US5582797A (en) * 1995-03-01 1996-12-10 Andros Incorporated Sensor support subassembly
EP0837324B1 (fr) * 1996-10-17 2006-07-12 Denso Corporation Dispositif pour détecter la concentration de gaz
US6341519B1 (en) * 1998-11-06 2002-01-29 Reuter-Stokes, Inc. Gas-sensing probe for use in a combustor
US6592731B1 (en) 1999-09-23 2003-07-15 Ceramphysics, Inc. Amperometric oxygen sensor
US6824661B2 (en) 1999-09-23 2004-11-30 Ceramphysics, Inc. Combined oxygen and NOx sensor
US6849168B2 (en) * 2000-11-13 2005-02-01 Kval, Inc. Electrochemical microsensor package
DE10216724C1 (de) * 2002-04-16 2003-10-09 Bosch Gmbh Robert Verfahren zum Betreiben einer Breitband-Lamdasonde
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US7156968B2 (en) * 2003-05-09 2007-01-02 Mst Technology Gmbh Electrode comprising material to help stabilize oxide of catalyst for electrochemical sensor
EP2952721B1 (fr) 2013-01-29 2018-03-21 Toyota Jidosha Kabushiki Kaisha Dispositif de commande pour moteur à combustion interne
AU2013376228B2 (en) * 2013-01-29 2016-01-14 Toyota Jidosha Kabushiki Kaisha Control device for internal combustion engine
DE102018118565A1 (de) * 2018-07-31 2020-02-06 Volkswagen Ag Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors und Abgasnachbehandlungssystem

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US3032969A (en) * 1961-08-28 1962-05-08 Llewellyn T Barnes Venturi degassing attachment
US3441381A (en) * 1965-06-22 1969-04-29 Engelhard Ind Inc Apparatus for purifying exhaust gases of an internal combustion engine
LU54650A1 (fr) * 1966-10-19 1967-12-11
SE322927B (fr) * 1967-09-28 1970-04-20 Asea Ab
US3607701A (en) * 1968-01-05 1971-09-21 Bailey Meters Controls Ltd Electrochemical analyzer for measuring the oxygen content of hot gases
US3597345A (en) * 1968-11-18 1971-08-03 Westinghouse Electric Corp Oxygen detection apparatus
US3616274A (en) * 1969-11-24 1971-10-26 Gen Motors Corp Method and apparatus for monitoring exhaust gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2279938A1 (fr) * 1974-05-11 1976-02-20 Bosch Gmbh Robert Appareil de commande pour regler l'introduction d'air d'addition dans les gaz d'echappement d'un moteur a combustion interne
FR2414625A1 (fr) * 1978-01-16 1979-08-10 Engelhard Min & Chem Dispositif de commande de combustion pour un moteur a combustion interne utilisant des carburants comportant une proportion variable d'hydrocarbures partiellement oxydes

Also Published As

Publication number Publication date
US3768259A (en) 1973-10-30
CA992644A (en) 1976-07-06
GB1387870A (en) 1975-03-19
DE2233299A1 (de) 1973-01-18
DE2233299B2 (de) 1975-01-02
IT965886B (it) 1974-02-11

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