GB1377908A - Internal combustion engines - Google Patents

Internal combustion engines

Info

Publication number
GB1377908A
GB1377908A GB1788173A GB1788173A GB1377908A GB 1377908 A GB1377908 A GB 1377908A GB 1788173 A GB1788173 A GB 1788173A GB 1788173 A GB1788173 A GB 1788173A GB 1377908 A GB1377908 A GB 1377908A
Authority
GB
United Kingdom
Prior art keywords
engine
output
generator
air
comparator
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.)
Expired
Application number
GB1788173A
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.)
Societe Industrielle de Brevets et dEtudes SIBE
Original Assignee
Societe Industrielle de Brevets et dEtudes SIBE
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 Societe Industrielle de Brevets et dEtudes SIBE filed Critical Societe Industrielle de Brevets et dEtudes SIBE
Publication of GB1377908A publication Critical patent/GB1377908A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
    • F02M7/23—Fuel aerating devices
    • F02M7/24—Controlling flow of aerating air
    • F02M7/28—Controlling flow of aerating air dependent on temperature or pressure
    • 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
    • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

1377908 Regulating I C engines SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 13 April 1973 [28 April 1972] 17881/73 Heading F1B An I. C. engine system comprises an I. C. engine with a regulating device to regulate the richness of the fuel/air mixture the engine receives and a catalytic oxidation device through which the exhaust gases pass, the oxidation device comprising a catalytic chamber 16 with an air intake 15a and intake 16a and outlet 16b for exhaust gases and means to admit to the air intake 15a an air-flow proportional to the air-flow to the engine, the regulating device comprising means to measure the temperature increase between intake 16a and outlet 16b and to regulate in response thereto the mixture richness. The richness is reduced or increased according to whether the temperature difference is greater or less than a reference value. The temperature is measured in the chamber 16 by thermocouples 17 and 18, whose outputs are fed to an amplifier 19, the output of which is greater when the temperature difference between the thermocouples is greater. The output of amplifier 19 and a reference voltage provided via a potentiometer 21 are compared by amplifier-comparator 20, which delivers an output voltage to control a servomotor 22 and hence control needles 7 and 11 to regulate the mixture strength. In Fig. 2, the output of amplifier-comparator 20 is fed to a sawtooth signal generator 31 whose output is fed to comparator 32 with a sawtooth signal from generator 30 responsive to a pulse triggering device 29 which may be driven by the engine. The signal from generator 30 has sawteeth with slope determined by a potentiometer controlled by valve flap 24 in response to air-flow to the engine. The comparator 32 provides a signal from means 33 to electromagnetic valve 34 while the output from generator 31 is greater than that from generator 30. If the mixture supplied to the engine is too weak, the temperature rise in chamber 16 keeps valve 34 open longer to provide more fuel to the engine.
GB1788173A 1972-04-28 1973-04-13 Internal combustion engines Expired GB1377908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7215389A FR2182387A5 (en) 1972-04-28 1972-04-28

Publications (1)

Publication Number Publication Date
GB1377908A true GB1377908A (en) 1974-12-18

Family

ID=9097774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1788173A Expired GB1377908A (en) 1972-04-28 1973-04-13 Internal combustion engines

Country Status (4)

Country Link
DE (1) DE2308781A1 (en)
FR (1) FR2182387A5 (en)
GB (1) GB1377908A (en)
IT (1) IT980066B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001129A (en) * 1977-07-12 1979-01-24 Ntn Toyo Bearing Co Ltd Fuel feeding apparatus for internal combustion engine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51124734A (en) * 1975-04-22 1976-10-30 Nissan Motor Co Ltd A fuel supplying apparatus in combustion engines
US4135482A (en) * 1976-05-10 1979-01-23 Colt Industries Operating Corp Apparatus and system for controlling the air-fuel ratio supplied to a combustion engine
JPS6014894B2 (en) * 1976-12-01 1985-04-16 トヨタ自動車株式会社 Secondary air supply control device for exhaust gas purification of internal combustion engines
DE3503381A1 (en) * 1985-02-01 1986-08-07 Robert Bosch Gmbh, 7000 Stuttgart Device for controlling internal-combustion engines in an open-loop or closed-loop fashion
DE19503317A1 (en) * 1995-02-02 1996-08-08 Bayerische Motoren Werke Ag Device for controlling the shutdown of an injection valve in internal combustion engines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001129A (en) * 1977-07-12 1979-01-24 Ntn Toyo Bearing Co Ltd Fuel feeding apparatus for internal combustion engine
GB2001129B (en) * 1977-07-12 1982-08-04 Ntn Toyo Bearing Co Ltd FUEL FEEDING APPARATUS FOR air fuel combustion mixture

Also Published As

Publication number Publication date
IT980066B (en) 1974-09-30
DE2308781A1 (en) 1973-11-08
FR2182387A5 (en) 1973-12-07

Similar Documents

Publication Publication Date Title
GB1484766A (en) Air-fuel mixture control apparatus for carburetted internal combustion engines
GB1410545A (en) Internal combustion engines
GB1454703A (en) Internal combustion engine having a regulating system for se condary air
GB1429270A (en) Carburation devices for internal combustion engines
GB1536015A (en) Method of regulating the operating behaviour of an internal combustion engine
GB1386429A (en) Systems for regulating the air to fuel ratio of the mixture supplied to an internal combustion engine
GB1496835A (en) Mixture control system for an internal combustion engine
GB1469390A (en) Internal combustion engine exhaust systems
GB1471525A (en) Fuel control systems
ES391484A1 (en) Carburetor control system and method for regulating air to fuel ratio
GB1515734A (en) Apparatus for controlling the ratio of air to fuel of air-fuel mixture of internal combustion engine
ES450088A1 (en) Fuel metering apparatus and method
JPS56107925A (en) Electronically controlled fuel injector for ignited internal combustion engine
GB1429664A (en) Internal combustion engines
GB1524361A (en) Apparatus for controlling the air-fuel mixture ratio of internal combustion engine
GB1449221A (en) Control of the composition of exhaust gases of internal combustion engines
CA1044093A (en) Air/fuel ratio control system in internal combustion engine
JPS5593917A (en) Method of purifying exhaust gas of internal combustion engine
GB1398252A (en) Internal combustion engines
ES8606572A1 (en) Control system for a supercharged internal-combustion engine with a by-pass conduit and an auxiliary combustion chamber.
US4121542A (en) Method and apparatus for operating an internal combustion engine
GB1431694A (en) Systems for regulating the fuel/air mixture for an internal combustion engine
GB1377908A (en) Internal combustion engines
US4046120A (en) Regulating system with electromagnetic valve and control valve
US4043305A (en) Control device for regulating the compositions of the inlet and exhaust gases of an internal combustion engine

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee