GB1351965A - Fuel injection systems for internal combustion engines - Google Patents

Fuel injection systems for internal combustion engines

Info

Publication number
GB1351965A
GB1351965A GB4875271A GB4875271A GB1351965A GB 1351965 A GB1351965 A GB 1351965A GB 4875271 A GB4875271 A GB 4875271A GB 4875271 A GB4875271 A GB 4875271A GB 1351965 A GB1351965 A GB 1351965A
Authority
GB
United Kingdom
Prior art keywords
engine
electromagnet
controlled
bridge
valve
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
GB4875271A
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 GB1351965A publication Critical patent/GB1351965A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/28—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
    • 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
    • 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
    • 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
    • F02M69/22—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 comprising a member movably mounted in the air intake conduit and displaced according to the quantity of air admitted to the engine

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

1351965 Regulating I C engine fuel injection ROBERT BOSCH GmbH 20 Oct 1971 [21 Oct 1970] 48752/71 Heading F1B [Also in Division G1] In an I.C. engine fuel injection control system, fuel is metered by a valve 7 in dependence upon the position of a device 2 arranged in the intake manifold 1 of the engine so as to be displaceable in dependence upon the quantity of air flowing to the engine, the valve 7 being controlled by an adjusting device, via a servo regulating circuit to the input of which is supplied a signal dependent upon the displacement of device 2. As shown, the adjusting device includes an electromagnet 20 which controls the angular position of a three-dimensional cam 21, the cam acting on a control member 24 of valve 7. The position of device 2 controls an inductive transducer 11, an inductive transducer 12 being controlled by the electromagnet 20. These transducers are arranged in a bridge circuit whose output is supplied to the electromagnet 20 until the bridge is re-balanced. Additional transducers 15 are shown connected in the bridge so that engine and air temperature are taken into consideration. A damping device 17, 18, 19 is also provided for the device 2. The axial position of the cam 21 is controlled by a piston 22 in dependence upon intake manifold pressure. In a second embodiment Fig. 2 (not shown), the adjusting device merely comprises an electromagnet, and a further inductive transducer is arranged in the bridge and is controlled by the position of the butterfly valve 3. The damping device is also modified and comprises a friction brake.
GB4875271A 1970-10-21 1971-10-20 Fuel injection systems for internal combustion engines Expired GB1351965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702051584 DE2051584C3 (en) 1970-10-21 1970-10-21 Fuel injection system for internal combustion engines

Publications (1)

Publication Number Publication Date
GB1351965A true GB1351965A (en) 1974-05-15

Family

ID=5785701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4875271A Expired GB1351965A (en) 1970-10-21 1971-10-20 Fuel injection systems for internal combustion engines

Country Status (4)

Country Link
JP (1) JPS4948892B1 (en)
DE (1) DE2051584C3 (en)
FR (1) FR2113079A5 (en)
GB (1) GB1351965A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS526414B2 (en) * 1972-10-06 1977-02-22
JPS553537B2 (en) * 1974-12-11 1980-01-25
DE2543562C2 (en) * 1975-09-30 1982-04-15 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system for, in particular, spark-ignition internal combustion engines

Also Published As

Publication number Publication date
JPS4948892B1 (en) 1974-12-24
FR2113079A5 (en) 1972-06-23
SU406375A3 (en) 1973-11-05
DE2051584B2 (en) 1979-07-19
DE2051584C3 (en) 1980-03-27
DE2051584A1 (en) 1972-04-27

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Legal Events

Date Code Title Description
PS Patent sealed