GB1078278A - Improvements in fuel injection systems - Google Patents

Improvements in fuel injection systems

Info

Publication number
GB1078278A
GB1078278A GB40126/64A GB4012664A GB1078278A GB 1078278 A GB1078278 A GB 1078278A GB 40126/64 A GB40126/64 A GB 40126/64A GB 4012664 A GB4012664 A GB 4012664A GB 1078278 A GB1078278 A GB 1078278A
Authority
GB
United Kingdom
Prior art keywords
resistor
collector
transistor
switch
transformer
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
GB40126/64A
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 GB1078278A publication Critical patent/GB1078278A/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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/061—Introducing corrections for particular operating conditions for engine starting or warming up the corrections being time dependent
    • 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
    • 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
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F02M51/0682—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the body being hollow and its interior communicating with the fuel 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/08—Injectors peculiar thereto with means directly operating the valve needle specially for low-pressure fuel-injection

Abstract

1,078,278. Electric correspondence control systems. ROBERT BOSCH G. m. b. H. Oct. 2, 1964 [oct. 4, 1963], No. 40126/64. Heading G1N [Also in Division F1] Fuel is injected by three out of six electromagnetic injection valves 21 during the unstable period of a transistorized monostable multivibrator 36, this period depending upon (a) the position of the movable core 41 of a transformer 40 which couples the collector of the output transistor 38 to the base of the input transistor 37, and (b) the value of a negative temperature coefficient resistor 67, coupled via a diode 65 into the output collector circuit. The resistor 67 is used to sense engine temperature, and more fuel is thereby injected when the engine is cold. The position of the moving transformer core 41 is controlled by the pressure in the inlet manifold 20, and each cycle of the multi-vibrator is triggered by a double-lobed cam 56 which rotates at half the speed of the crank-shaft and operates a switch 57 to momentarily earth a capacitor 59, the transistor 37 being rendered non-conductive when the switch 57 is opened. Successive output pulses are fed alternately, through an amplifier 34, to injection valve-driving transistors 32, 33, the switch 63 being operated by a single lobed cam rotating at the same speed as the cam 56. Modifications include connecting the n.t. c. resistor 67 to the collector of the transistor 38 Fig. 3 (not shown); or connecting the transformer primary 40 and the n.t.c. resistor 67 to the supply 51, and the two resistors 61, 66 to the collector, the diode being reversed Fig. 4 (not shown). A positive temperature coefficient resistor may be used, and is connected in place of the resistor 66, while the n.t. c. resistor 67 is replaced by an ordinary resistor. The injection valves Fig. 2 (not shown) each comprise a coil (26), a magnetizable housing (25), a fixed iron core (27), and a movable core (29) carrying a nozzle pin (28).
GB40126/64A 1963-10-04 1964-10-02 Improvements in fuel injection systems Expired GB1078278A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB73754A DE1206204B (en) 1963-10-04 1963-10-04 Electrically controlled fuel injection system for internal combustion engines

Publications (1)

Publication Number Publication Date
GB1078278A true GB1078278A (en) 1967-08-09

Family

ID=6977975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40126/64A Expired GB1078278A (en) 1963-10-04 1964-10-02 Improvements in fuel injection systems

Country Status (3)

Country Link
US (1) US3203410A (en)
DE (1) DE1206204B (en)
GB (1) GB1078278A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1265489B (en) * 1966-05-20 1968-04-04 Bosch Gmbh Robert Diesel engine with an actuator for adjusting the amount of fuel and an adjustment regulator
SE315770B (en) * 1966-08-31 1969-10-06 Bosch Gmbh Robert
DE1268900B (en) * 1966-08-31 1968-05-22 Bosch Gmbh Robert Fuel injection system for internal combustion engines
DE6604311U (en) 1966-11-09 1970-01-22 Bosch Gmbh Robert TEMPERATURE SENSOR.
FR2002456A6 (en) * 1968-02-23 1969-10-17 Bosch
USRE29561E (en) * 1968-11-12 1978-03-07 Lumenition, Ltd. Fuel injection systems for internal combustion engines
FR2050378A1 (en) * 1969-07-31 1971-04-02 Brev Etudes Sibe
US3612020A (en) * 1970-05-21 1971-10-12 Gen Motors Corp Compensating fuel metering for exhaust gas recirculation
US3610219A (en) * 1970-05-22 1971-10-05 Gen Motors Corp Exhaust gas recirculation control
FR2116937A5 (en) * 1970-12-11 1972-07-21 Peugeot & Renault Electronic injection device
US3774580A (en) * 1971-10-21 1973-11-27 Gen Motors Corp Linearized electronic fuel injection system
DE2152586C3 (en) * 1971-10-22 1975-06-19 Robert Bosch Gmbh, 7000 Stuttgart Vacuum limiter for an electrically controlled gasoline injection device
DE2520911C2 (en) * 1975-05-10 1984-03-22 Robert Bosch Gmbh, 7000 Stuttgart Device for adapting the amount of fuel supplied per stroke by an electric fuel injection system of an internal combustion engine to changing temperatures of the intake air

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867200A (en) * 1957-03-20 1959-01-06 Bendix Aviat Corp Auxiliary control means for pulse producing circuit
BE567344A (en) * 1957-05-04
DE1175033B (en) * 1959-06-26 1964-07-30 Bosch Gmbh Robert Fuel injection system for internal combustion engines

Also Published As

Publication number Publication date
DE1206204B (en) 1965-12-02
US3203410A (en) 1965-08-31

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