ES404284A2 - Fuel feed devices for internal combustion engines - Google Patents

Fuel feed devices for internal combustion engines

Info

Publication number
ES404284A2
ES404284A2 ES404284A ES404284A ES404284A2 ES 404284 A2 ES404284 A2 ES 404284A2 ES 404284 A ES404284 A ES 404284A ES 404284 A ES404284 A ES 404284A ES 404284 A2 ES404284 A2 ES 404284A2
Authority
ES
Spain
Prior art keywords
saw
tooth
signal
revolution
rotary member
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
ES404284A
Other languages
Spanish (es)
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 ES404284A2 publication Critical patent/ES404284A2/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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/182—Circuit arrangements for generating control signals by measuring intake air flow for the control of a fuel injection device

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)

Abstract

The device comprises, in its intake pipe, a principal throttle member actuated by the driver, a source of fuel under pressure of which the delivery pipe which opens into the portion of the intake pipe situated downstream of the principal throttle member is controlled by at least one injection valve actuated by an electromagnet and a metering system which, provided with a rotary member driven in continuous rotation, is adapted to send into this electromagnet at least one energizing signal during a fraction of each revolution of said rotary member, regulated by this system. Electronic means supply a signal representing the measurement of the degree of opening of an auxiliary throttle member as a function of the variation in the flow-rate of air and a trigger signal appearing at each revolution of the rotary member. The electronic means comprise means for emitting, on each revolution of the rotary member, a first and a second saw-tooth signal, the saw-tooth of the second signal, in the course of one revolution of the rotary member, being triggered by the trigger signal and appearing after the saw-tooth of the first signal, this saw-tooth of the second signal having in addition a steeper slope than the slope of said saw-tooth of the first signal, the period t of this saw-tooth of the first signal corresponding substantially to the duration of a revolution of the rotary member, one of these saw-tooth signals having a slope variable as a function of the signal representative of the degree of opening of the auxiliary throttle member and the other of these two saw-tooth signals having a generally constant slope. The electronic means includes a comparator to determine the fraction of each revolution of the rotary member which corresponds to the time that elapses between the beginning of the appearance of the saw-tooth of steepest slope and the moment when the amplitude of this saw-tooth reaches that of the saw-tooth of the other signal. The electronic means is arranged so that the duration t of this fraction of a revolution is the duration of the energizing signal to be supplied to the electromagnet of the injection valve for each revolution of the rotary member.
ES404284A 1971-07-21 1972-06-15 Fuel feed devices for internal combustion engines Expired ES404284A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7126772A FR2146642A6 (en) 1971-07-21 1971-07-21

Publications (1)

Publication Number Publication Date
ES404284A2 true ES404284A2 (en) 1975-08-01

Family

ID=9080710

Family Applications (1)

Application Number Title Priority Date Filing Date
ES404284A Expired ES404284A2 (en) 1971-07-21 1972-06-15 Fuel feed devices for internal combustion engines

Country Status (11)

Country Link
US (1) US3839997A (en)
JP (1) JPS56165728A (en)
AR (1) AR198621A1 (en)
AU (1) AU469602B2 (en)
BR (1) BR7204543D0 (en)
DE (1) DE2235349A1 (en)
ES (1) ES404284A2 (en)
FR (1) FR2146642A6 (en)
GB (1) GB1362460A (en)
IT (1) IT1045065B (en)
SE (1) SE377596B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949714A (en) * 1974-04-22 1976-04-13 General Motors Corporation Fuel-air metering and induction system
DE2517233C2 (en) * 1975-04-18 1984-03-15 Robert Bosch Gmbh, 7000 Stuttgart Electrically controlled fuel injection system for internal combustion engines
FR2332431A1 (en) * 1975-11-20 1977-06-17 Sibe IMPROVEMENTS TO FUEL SUPPLY DEVICES FOR INTERNAL COMBUSTION ENGINES
WO1981000282A1 (en) * 1979-07-13 1981-02-05 G Costa Fuel supply system for internal combustion engines

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3636931A (en) * 1968-04-17 1972-01-25 Hitachi Ltd Fuel injection controlling system for internal combustion engine
FR2034280A1 (en) * 1969-03-07 1970-12-11 Electro Inf Ind
FR2029418A1 (en) * 1969-01-31 1970-10-23 Electronique Informatique Soc
US3575147A (en) * 1969-02-12 1971-04-20 Ford Motor Co Electronic fuel injection system
FR2036282A5 (en) * 1969-03-10 1970-12-24 Sopromi Soc Proc Modern Inject
US3660689A (en) * 1969-05-14 1972-05-02 Nippon Denso Co Timing signal generating system for internal combustion engines
GB1286851A (en) * 1969-06-27 1972-08-23 Petrol Injection Ltd Fuel injection systems
US3710766A (en) * 1970-05-14 1973-01-16 Acf Ind Inc Electronic fuel injection system

Also Published As

Publication number Publication date
JPS56165728A (en) 1981-12-19
AR198621A1 (en) 1974-07-15
IT1045065B (en) 1980-05-10
US3839997A (en) 1974-10-08
SE377596B (en) 1975-07-14
AU4456072A (en) 1974-01-17
FR2146642A6 (en) 1973-03-02
JPS5759416B2 (en) 1982-12-14
GB1362460A (en) 1974-08-07
BR7204543D0 (en) 1973-08-30
DE2235349A1 (en) 1973-02-01
AU469602B2 (en) 1976-02-19

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