ES346537A1 - Improvements in Fuel Injection Systems for Internal Combustion Engines - Google Patents

Improvements in Fuel Injection Systems for Internal Combustion Engines

Info

Publication number
ES346537A1
ES346537A1 ES346537A ES346537A ES346537A1 ES 346537 A1 ES346537 A1 ES 346537A1 ES 346537 A ES346537 A ES 346537A ES 346537 A ES346537 A ES 346537A ES 346537 A1 ES346537 A1 ES 346537A1
Authority
ES
Spain
Prior art keywords
fuel
controlled
intake manifold
pressure
transistor
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
ES346537A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of ES346537A1 publication Critical patent/ES346537A1/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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/16—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors
    • F02M69/18—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air
    • F02M69/20—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air the device being a servo-motor, e.g. using engine intake air pressure or vacuum
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/32—Controlling fuel injection of the low pressure type
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/02—Fuel-injection apparatus characterised by being operated electrically specially for low-pressure fuel-injection
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/16—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors
    • F02M69/18—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air
    • 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
    • F02D2700/0238—Engines without compressor by means of one throttle device depending on the number of revolutions of a centrifugal governor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Fuel is injected into the intake manifold 12 by solenoid actuated valves 13 fed by a pump 16 and the fuel pressure is controlled by a regulator 19 to a value exceeding the intake manifold pressure by a predetermined amount. The regulator 19 may comprise two chambers (51, 52) separated by a spring-biased diaphragm (53) with a cone (54) which controls the flow of fuel, fed to one of the chambers (52), through a return pipe 55 to the fuel tank 18. The other chamber (51) is connected to the intake manifold 12. The period of opening of the injection valves is controlled by a monostable multi-vibrator 25. The period is dependent upon the position of the movable core 39 of a transformer which couples the collector of the output transistor T 2 to the base of the input transistor T 1 . The position of the transformer core 39 is controlled by the pressure in the inlet manifold 12, and each cycle of the multi-vibrator is triggered by the cam 31 rotating with the crank shaft 17 and operating a switch 32 to connect a capacitor 33 to the positive lead 26, the transistor T 1 being rendered non-conductive. The pump 16 is driven by the crank-shaft 17 or an electric motor.
ES346537A 1966-10-29 1967-10-28 Improvements in Fuel Injection Systems for Internal Combustion Engines Expired ES346537A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB89631A DE1290372B (en) 1966-10-29 1966-10-29 Manifold injection device for an internal combustion engine

Publications (1)

Publication Number Publication Date
ES346537A1 true ES346537A1 (en) 1968-12-16

Family

ID=6984855

Family Applications (1)

Application Number Title Priority Date Filing Date
ES346537A Expired ES346537A1 (en) 1966-10-29 1967-10-28 Improvements in Fuel Injection Systems for Internal Combustion Engines

Country Status (8)

Country Link
AT (1) AT283821B (en)
BE (1) BE705789A (en)
CH (1) CH457036A (en)
DE (1) DE1290372B (en)
ES (1) ES346537A1 (en)
GB (1) GB1191107A (en)
NL (1) NL6714640A (en)
SE (1) SE327114B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417019A1 (en) * 1978-02-14 1979-09-07 Nippon Denso Co FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES
IT7853091V0 (en) * 1978-03-20 1978-03-20 Fiat Spa FUEL PRESSURE CONTROL VALVE SUPPLIED TO THE INJECTORS OF AN INTERNAL COMBUSTION ENGINE
JPS586050B2 (en) * 1978-07-13 1983-02-02 三菱自動車工業株式会社 Engine fuel supply system
JPS5819844B2 (en) * 1978-07-13 1983-04-20 三菱自動車工業株式会社 Engine fuel supply system
US4454713A (en) * 1981-06-04 1984-06-19 Chandler Evans Inc. Pulse width modulated fuel metering system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744425C (en) * 1936-03-03 1944-01-15 L Orange Motorzubehoer Geb Device for regulating the mixture formation in internal combustion engines
US2980090A (en) * 1956-02-24 1961-04-18 Bendix Corp Fuel injection system
US2888000A (en) * 1957-02-27 1959-05-26 Bendix Aviat Corp Fuel supply system
GB993860A (en) * 1961-03-27 1965-06-02 Borg Warner Fuel injection control mechanism for an internal combustion engine

Also Published As

Publication number Publication date
NL6714640A (en) 1968-05-01
GB1191107A (en) 1970-05-06
AT283821B (en) 1970-08-25
DE1290372B (en) 1969-03-06
SE327114B (en) 1970-08-10
BE705789A (en) 1968-03-01
CH457036A (en) 1968-05-31

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