ES404284A2 - Fuel feed devices for internal combustion engines - Google Patents
Fuel feed devices for internal combustion enginesInfo
- 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
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.
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)
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)
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 |
-
1971
- 1971-07-21 FR FR7126772A patent/FR2146642A6/fr not_active Expired
-
1972
- 1972-06-13 IT IT50853/72A patent/IT1045065B/en active
- 1972-06-15 ES ES404284A patent/ES404284A2/en not_active Expired
- 1972-06-23 AR AR242717A patent/AR198621A1/en active
- 1972-07-05 SE SE7208889A patent/SE377596B/xx unknown
- 1972-07-10 BR BR004543/72A patent/BR7204543D0/en unknown
- 1972-07-11 GB GB3238472A patent/GB1362460A/en not_active Expired
- 1972-07-11 US US00270806A patent/US3839997A/en not_active Expired - Lifetime
- 1972-07-14 AU AU44560/72A patent/AU469602B2/en not_active Expired
- 1972-07-19 DE DE2235349A patent/DE2235349A1/en not_active Ceased
-
1981
- 1981-04-20 JP JP5868081A patent/JPS56165728A/en active Granted
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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