JPS4891425A - - Google Patents

Info

Publication number
JPS4891425A
JPS4891425A JP48016383A JP1638373A JPS4891425A JP S4891425 A JPS4891425 A JP S4891425A JP 48016383 A JP48016383 A JP 48016383A JP 1638373 A JP1638373 A JP 1638373A JP S4891425 A JPS4891425 A JP S4891425A
Authority
JP
Japan
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.)
Granted
Application number
JP48016383A
Other languages
Japanese (ja)
Other versions
JPS554942B2 (en
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 filed Critical
Publication of JPS4891425A publication Critical patent/JPS4891425A/ja
Publication of JPS554942B2 publication Critical patent/JPS554942B2/ja
Expired legal-status Critical Current

Links

Classifications

    • 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)
    • F02D41/1482—Integrator, i.e. variable slope
    • 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
    • F02D41/1474—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method by detecting the commutation time 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
    • 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
    • F02D2700/02—Controlling by changing the air or fuel supply
    • F02D2700/0217—Controlling by changing the air or fuel supply for mixture compressing engines using liquid fuel
    • F02D2700/0225—Control of air or mixture supply
    • F02D2700/0228—Engines without compressor
    • F02D2700/023—Engines without compressor by means of one throttle device
    • F02D2700/0241—Engines without compressor by means of one throttle device depending on another parameter
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Exhaust Gas After Treatment (AREA)
JP1638373A 1972-02-10 1973-02-09 Expired JPS554942B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2206276A DE2206276C3 (en) 1972-02-10 1972-02-10 Method and device for reducing harmful components of exhaust gas emissions from internal combustion engines

Publications (2)

Publication Number Publication Date
JPS4891425A true JPS4891425A (en) 1973-11-28
JPS554942B2 JPS554942B2 (en) 1980-02-01

Family

ID=5835604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1638373A Expired JPS554942B2 (en) 1972-02-10 1973-02-09

Country Status (8)

Country Link
US (1) US3782347A (en)
JP (1) JPS554942B2 (en)
CH (1) CH544218A (en)
DE (1) DE2206276C3 (en)
FR (1) FR2171413B1 (en)
GB (1) GB1395276A (en)
IT (1) IT990519B (en)
SE (1) SE378282B (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4968122A (en) * 1972-09-14 1974-07-02
JPS51106828A (en) * 1975-03-18 1976-09-22 Nissan Motor KUNENPISEIGYOSOCHI
JPS51117231A (en) * 1975-04-08 1976-10-15 Nissan Motor Co Ltd Air-fuel ratio control system
JPS51124739A (en) * 1975-04-24 1976-10-30 Nissan Motor Co Ltd An air fuel ratio control apparatus
JPS51136035A (en) * 1975-05-20 1976-11-25 Nissan Motor Co Ltd Air fuel mixture rate control device
JPS51154616U (en) * 1975-06-03 1976-12-09
JPS51149421A (en) * 1975-06-18 1976-12-22 Nissan Motor Co Ltd Air-fuel ratio control device
JPS51149423A (en) * 1975-06-17 1976-12-22 Nippon Denso Co Ltd Fuel ejection control device of air-fuel ratio feed back type
JPS5229537A (en) * 1975-09-01 1977-03-05 Nissan Motor Co Ltd Ratio of air to fuel control device
JPS5248729A (en) * 1975-10-16 1977-04-19 Nissan Motor Co Ltd Air-fuel ratio controller
JPS5297031A (en) * 1976-02-12 1977-08-15 Nissan Motor Co Ltd Air fuel ration controller
JPS53127932A (en) * 1977-02-11 1978-11-08 Acf Ind Inc Airrfuel ratio controller of internal combustion engine
JPS6285147A (en) * 1986-06-16 1987-04-18 Nissan Motor Co Ltd Air-fuel ratio control device

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084562A (en) * 1972-08-08 1978-04-18 Robert Bosch Gmbh Fuel metering device
US4364356A (en) * 1972-09-06 1982-12-21 Uop Inc. Exhaust emissions control system
US4040394A (en) * 1972-09-14 1977-08-09 Robert Bosch Gmbh Apparatus repetitively controlling the composition of exhaust emissions from internal combustion engines, in predetermined intervals
DE2245029C3 (en) * 1972-09-14 1981-08-20 Robert Bosch Gmbh, 7000 Stuttgart Method and device for exhaust gas decontamination from internal combustion engines
US4287865A (en) * 1972-09-18 1981-09-08 The Bendix Corporation Closed loop engine control system
DE2247656C3 (en) * 1972-09-28 1981-12-17 Robert Bosch Gmbh, 7000 Stuttgart Device for regulating the ratio of the fuel and air components of the operating mixture of an internal combustion engine
DE2251167C3 (en) * 1972-10-19 1986-07-31 Robert Bosch Gmbh, 7000 Stuttgart Device for exhaust gas detoxification from internal combustion engines
DE2321721C2 (en) * 1973-04-28 1982-12-16 Robert Bosch Gmbh, 7000 Stuttgart Device for reducing harmful components of exhaust gas emissions from internal combustion engines
JPS4972524A (en) * 1972-11-17 1974-07-12
US4015426A (en) * 1972-11-20 1977-04-05 Nippondenso Co., Ltd. Fuel control system
DE2301354C3 (en) * 1973-01-12 1981-03-12 Robert Bosch Gmbh, 7000 Stuttgart Device for regulating the fuel-air ratio in internal combustion engines
DE2301353A1 (en) * 1973-01-12 1974-07-25 Bosch Gmbh Robert CONTROL DEVICE FOR EXHAUST GAS DETOXIFICATION FROM COMBUSTION MACHINERY
GB1465052A (en) * 1973-02-20 1977-02-23 Lucas Electrical Ltd Fuel control systems
US3906910A (en) * 1973-04-23 1975-09-23 Colt Ind Operating Corp Carburetor with feedback means and system
US3916170A (en) * 1973-04-25 1975-10-28 Nippon Denso Co Air-fuel ratio feed back type fuel injection control system
USRE29741E (en) * 1973-04-25 1978-08-22 Nippondenso Co., Ltd. Air-fuel ratio feed back type fuel injection control system
JPS50229A (en) * 1973-05-09 1975-01-06
JPS5213250B2 (en) * 1973-05-31 1977-04-13
DE2327801C3 (en) * 1973-06-01 1980-01-03 Volkswagenwerk Ag, 3180 Wolfsburg Arrangement for obtaining a speed signal for an electronic fuel injection device
US4036186A (en) * 1973-06-04 1977-07-19 Nippon Soken, Inc. Air-fuel mixture ratio correcting system for carburetor
DE2333743C2 (en) * 1973-07-03 1983-03-31 Robert Bosch Gmbh, 7000 Stuttgart Method and device for exhaust gas decontamination from internal combustion engines
DE2337198C2 (en) * 1973-07-21 1981-09-17 Robert Bosch Gmbh, 7000 Stuttgart Device for reducing the harmful components of the exhaust gas
DE2422938C2 (en) * 1974-05-11 1982-07-08 Robert Bosch Gmbh, 7000 Stuttgart Switching device for the controlled addition of additional air to the exhaust gas of an internal combustion engine
JPS5114535A (en) * 1974-07-24 1976-02-05 Nissan Motor Nainenkikanno nenryoseigyoyohisengataseigyosochi
DE2448306C2 (en) * 1974-10-10 1983-12-08 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system
GB1524670A (en) * 1974-10-21 1978-09-13 Nissan Motor Apparatus for controlling the air-fuel mixture ratio of internal combustion engine
DE2547576A1 (en) * 1974-10-25 1976-04-29 Nissan Motor DEVICE FOR THE CONTROL OF THE AIR-FUEL RATIO FOR A COMBUSTION ENGINE
JPS5153131A (en) * 1974-11-01 1976-05-11 Nissan Motor Kikaki
GB1532989A (en) * 1974-11-06 1978-11-22 Nissan Motor Method of and device for controlling solenoid operated flow control means
US3939654A (en) * 1975-02-11 1976-02-24 General Motors Corporation Engine with dual sensor closed loop fuel control
US4300507A (en) * 1975-02-25 1981-11-17 The Bendix Corporation System controlling any air/fuel ratio with stoichiometric sensor and asymmetrical integration
SE411784B (en) * 1975-04-18 1980-02-04 Bosch Gmbh Robert SET AND DEVICE FOR DETERMINING THE DURATION OF FUEL SUPPLY PULSE
JPS584177B2 (en) * 1975-05-28 1983-01-25 トヨタ自動車株式会社 Feedback air-fuel ratio control device for electronically controlled injection engines
US4178884A (en) * 1975-06-05 1979-12-18 Nippondenso Co., Ltd. Method and system to control the mixture air-to-fuel ratio
US4111162A (en) * 1975-06-10 1978-09-05 Nippondenso Co., Ltd. Method and system for controlling the mixture air-to-fuel ratio
GB1554234A (en) * 1975-07-08 1979-10-17 Bosch Gmbh Robert Fuel supply systems for internal combustion engines
US3990411A (en) * 1975-07-14 1976-11-09 Gene Y. Wen Control system for normalizing the air/fuel ratio in a fuel injection system
US4210106A (en) * 1975-10-13 1980-07-01 Robert Bosch Gmbh Method and apparatus for regulating a combustible mixture
JPS5281438A (en) * 1975-12-27 1977-07-07 Nissan Motor Co Ltd Air fuel ratio controller
JPS5281435A (en) * 1975-12-27 1977-07-07 Nissan Motor Co Ltd Air fuel ratio controller
US4024706A (en) * 1976-01-07 1977-05-24 Ford Motor Company Method of improving the operational capacity of three-way catalysts
DE2604160C2 (en) * 1976-02-04 1985-08-08 Robert Bosch Gmbh, 7000 Stuttgart Control device for influencing the operating mixture fed to an internal combustion engine
DE2606625C2 (en) * 1976-02-19 1984-02-02 Robert Bosch Gmbh, 7000 Stuttgart Device for reducing harmful proportions of exhaust gases from internal combustion engines
JPS52114826A (en) * 1976-03-22 1977-09-27 Toyota Motor Corp Feedback type electronic controller for a fuel injection type internal combustion engine
JPS52145223U (en) * 1976-04-30 1977-11-04
JPS52135923A (en) * 1976-05-08 1977-11-14 Nissan Motor Co Ltd Air fuel ratio control equipment
JPS52154930A (en) * 1976-05-22 1977-12-23 Bosch Gmbh Robert Device for controlling fuellair ratio of mixture for internal combustion engine
DE2649271C2 (en) * 1976-06-11 1985-08-08 Robert Bosch Gmbh, 7000 Stuttgart Device for preventing control oscillations in a mixture preparation system that supplies an internal combustion engine with an operating mixture
IT1084410B (en) * 1976-08-25 1985-05-25 Bosch Gmbh Robert DEVICE FOR DETERMINING THE QUANTITY OF FUEL SUPPLIED BY INJECTION TO AN ENDOTHERMAL ENGINE, OR DEVICE REGULATOR OF THE MIXING RATIO FOR THE OPERATING MIXTURE TO BE ADDED TO AN ENDOTHERMAL ENGINE.
DE2702863C2 (en) * 1977-01-25 1986-06-05 Robert Bosch Gmbh, 7000 Stuttgart Method and device for regulating the mixture ratio components of the operating mixture fed to an internal combustion engine
JPS5924247B2 (en) * 1977-01-28 1984-06-08 株式会社日本自動車部品総合研究所 Internal combustion engine exhaust gas purification device
US4197822A (en) * 1977-02-14 1980-04-15 Colt Industries Operating Corp. Circuit means and apparatus for controlling the air-fuel ratio supplied to a combustion engine
US4169439A (en) * 1977-03-21 1979-10-02 Colt Industries Operating Corp. Circuit means and apparatus for controlling the air-fuel ratio supplied to a combustion engine
DE2709215A1 (en) * 1977-03-03 1978-09-07 Bosch Gmbh Robert MONITORING CIRCUIT FOR EXHAUST GAS COMPOSITION IN COMBUSTION ENGINE
DE2713988A1 (en) * 1977-03-30 1978-10-05 Bosch Gmbh Robert PROCESS AND DEVICE FOR DETERMINING THE PROPORTIONAL PART OF THE FUEL-AIR MIXTURE ADDED TO A COMBUSTION ENGINE
US4150645A (en) * 1977-08-19 1979-04-24 Colt Industries Operating Corp. Circuit means and apparatus for controlling the air-fuel ratio supplied to a combustion engine
US4202301A (en) * 1977-08-31 1980-05-13 Engelhard Minerals & Chemicals Corporation Oxygen sensor control system
US4167924A (en) * 1977-10-03 1979-09-18 General Motors Corporation Closed loop fuel control system having variable control authority
US4241710A (en) * 1978-06-22 1980-12-30 The Bendix Corporation Closed loop system
JPS5535181A (en) * 1978-09-05 1980-03-12 Nippon Denso Co Ltd Air fuel ratio control device
JPS5537562A (en) * 1978-09-08 1980-03-15 Nippon Denso Co Ltd Air-fuel ratio control system
JPS5732036A (en) * 1980-08-05 1982-02-20 Honda Motor Co Ltd Air/fuel ratio feedback control device for internal combustion engine
JPS5751936A (en) * 1980-09-12 1982-03-27 Hitachi Ltd Controlling and trouble discrimination initializing timing setting system for engine controller
JPS5793668A (en) * 1980-12-03 1982-06-10 Toyota Motor Corp Air fuel ratio control unit for internal combustion engine
US4526001A (en) * 1981-02-13 1985-07-02 Engelhard Corporation Method and means for controlling air-to-fuel ratio
US4397278A (en) * 1981-04-03 1983-08-09 Ford Motor Company Air fuel ratio control using time-averaged error signal
DE3124676A1 (en) * 1981-06-24 1983-01-13 Robert Bosch Gmbh, 7000 Stuttgart ELECTRONICALLY CONTROLLED FUEL METERING SYSTEM
DE3149096A1 (en) * 1981-12-11 1983-06-16 Robert Bosch Gmbh, 7000 Stuttgart Exhaust gas composition control using lambda regulator - has integration time dependent upon time between consecutive regulator switching points
JPS58172442A (en) * 1982-04-01 1983-10-11 Nippon Denso Co Ltd Air fuel ratio control device
JPS59103938A (en) * 1982-12-03 1984-06-15 Fuji Heavy Ind Ltd Idle automatic governor
JPS5994974U (en) * 1982-12-18 1984-06-27 自動車機器株式会社 Dust cover device for output shaft in steering gear
FR2544802B1 (en) * 1983-04-19 1988-07-22 Mitsubishi Electric Corp IGNITION ADJUSTMENT CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINES
DE3327156A1 (en) * 1983-07-28 1985-02-07 Robert Bosch Gmbh, 7000 Stuttgart METHOD AND DEVICE FOR (LAMBDA) CONTROL OF THE FUEL MIXTURE FOR AN INTERNAL COMBUSTION ENGINE
JPS6038526A (en) * 1983-08-11 1985-02-28 Fuji Heavy Ind Ltd Controller of air-fuel ratio
FR2592685B1 (en) * 1986-01-06 1989-12-29 Renault FUEL DOSING METHOD FOR ELECTRONIC INJECTION INTERNAL COMBUSTION ENGINE.
US5503134A (en) * 1993-10-04 1996-04-02 Ford Motor Company Fuel controller with air/fuel transient compensation
US5390490A (en) * 1993-11-04 1995-02-21 Ford Motor Company Method and apparatus for measuring the efficacy of a catalytic converter
US6196205B1 (en) 1999-07-12 2001-03-06 Dana Corporation Fuel control system for gas-operated engines
CN104898719B (en) * 2015-06-19 2017-11-14 邓静秋 Pollution sources VOC concentration and total emission volumn real-time monitoring system
CN112255911A (en) * 2020-10-19 2021-01-22 厦门五福印务有限公司 PID control module and printing exhaust emission control system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514377A (en) * 1967-11-27 1970-05-26 Gen Electric Measurement of oxygen-containing gas compositions and apparatus therefor
DE2010793A1 (en) * 1969-03-22 1970-10-08 N.V. Philips* Gloeilampenfabrieken, Eindhoven (Niederlande) Device for regulating the air-fuel ratio in an internal combustion engine
US3616408A (en) * 1968-05-29 1971-10-26 Westinghouse Electric Corp Oxygen sensor
JPS4828823A (en) * 1971-06-22 1973-04-17

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US2244669A (en) * 1936-08-01 1941-06-10 Askania Werke Ag Control device for the fuel feed of internal combustion engines
US3017749A (en) * 1957-06-10 1962-01-23 Heppler Herbert Temperature responsive gas turbine fuel control with multi-rate feedback
US3070735A (en) * 1959-09-28 1962-12-25 Bendix Corp Servo system
US3076312A (en) * 1960-01-29 1963-02-05 Lucas Industries Ltd Fuel supply control for gas turbine engines
US3154060A (en) * 1962-11-05 1964-10-27 Hundere Alf Reciprocating-piston gasoline engine fuel-air ratio control
US3520133A (en) * 1968-03-14 1970-07-14 Gen Electric Gas turbine control system
US3616274A (en) * 1969-11-24 1971-10-26 Gen Motors Corp Method and apparatus for monitoring exhaust gas
US3691405A (en) * 1971-08-10 1972-09-12 Ultra Electronics Ltd Thermocouple response time compensation circuit arrangement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514377A (en) * 1967-11-27 1970-05-26 Gen Electric Measurement of oxygen-containing gas compositions and apparatus therefor
US3616408A (en) * 1968-05-29 1971-10-26 Westinghouse Electric Corp Oxygen sensor
DE2010793A1 (en) * 1969-03-22 1970-10-08 N.V. Philips* Gloeilampenfabrieken, Eindhoven (Niederlande) Device for regulating the air-fuel ratio in an internal combustion engine
JPS4828823A (en) * 1971-06-22 1973-04-17

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4968122A (en) * 1972-09-14 1974-07-02
JPS5241819B2 (en) * 1972-09-14 1977-10-20
JPS51106828A (en) * 1975-03-18 1976-09-22 Nissan Motor KUNENPISEIGYOSOCHI
JPS51117231A (en) * 1975-04-08 1976-10-15 Nissan Motor Co Ltd Air-fuel ratio control system
JPS51124739A (en) * 1975-04-24 1976-10-30 Nissan Motor Co Ltd An air fuel ratio control apparatus
JPS51136035A (en) * 1975-05-20 1976-11-25 Nissan Motor Co Ltd Air fuel mixture rate control device
JPS5534299B2 (en) * 1975-05-20 1980-09-05
JPS5815648Y2 (en) * 1975-06-03 1983-03-30 日産自動車株式会社 Kuunenbiseigiyosouchi
JPS51154616U (en) * 1975-06-03 1976-12-09
JPS5824609B2 (en) * 1975-06-17 1983-05-23 株式会社デンソー Air-fuel ratio feedback type fuel injection control device
JPS51149423A (en) * 1975-06-17 1976-12-22 Nippon Denso Co Ltd Fuel ejection control device of air-fuel ratio feed back type
JPS5548179B2 (en) * 1975-06-18 1980-12-04
JPS51149421A (en) * 1975-06-18 1976-12-22 Nissan Motor Co Ltd Air-fuel ratio control device
JPS5229537A (en) * 1975-09-01 1977-03-05 Nissan Motor Co Ltd Ratio of air to fuel control device
JPS577295B2 (en) * 1975-10-16 1982-02-09
JPS5248729A (en) * 1975-10-16 1977-04-19 Nissan Motor Co Ltd Air-fuel ratio controller
JPS5297031A (en) * 1976-02-12 1977-08-15 Nissan Motor Co Ltd Air fuel ration controller
JPS6010170B2 (en) * 1976-02-12 1985-03-15 日産自動車株式会社 Air fuel ratio control device
JPS53127932A (en) * 1977-02-11 1978-11-08 Acf Ind Inc Airrfuel ratio controller of internal combustion engine
JPS6285147A (en) * 1986-06-16 1987-04-18 Nissan Motor Co Ltd Air-fuel ratio control device
JPS633137B2 (en) * 1986-06-16 1988-01-22 Nissan Motor

Also Published As

Publication number Publication date
DE2206276C3 (en) 1981-01-15
SE378282B (en) 1975-08-25
IT990519B (en) 1975-07-10
CH544218A (en) 1973-11-15
GB1395276A (en) 1975-05-21
FR2171413A1 (en) 1973-09-21
JPS554942B2 (en) 1980-02-01
US3782347A (en) 1974-01-01
DE2206276B2 (en) 1980-05-22
DE2206276A1 (en) 1973-08-16
FR2171413B1 (en) 1978-03-03

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