GB1123848A - Ignition systems - Google Patents

Ignition systems

Info

Publication number
GB1123848A
GB1123848A GB26644/67A GB2664467A GB1123848A GB 1123848 A GB1123848 A GB 1123848A GB 26644/67 A GB26644/67 A GB 26644/67A GB 2664467 A GB2664467 A GB 2664467A GB 1123848 A GB1123848 A GB 1123848A
Authority
GB
United Kingdom
Prior art keywords
voltage
battery
primary winding
primary
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
GB26644/67A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1123848A publication Critical patent/GB1123848A/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
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P9/00—Electric spark ignition control, not otherwise provided for
    • F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P11/00—Safety means for electric spark ignition, not otherwise provided for
    • F02P11/02—Preventing damage to engines or engine-driven gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/055—Layout of circuits with protective means to prevent damage to the circuit, e.g. semiconductor devices or the ignition coil
    • F02P3/0552—Opening or closing the primary coil circuit with semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1,123,848. Ignition systems. FORD MOTOR CO. Ltd. June 9, 1967 [July 18, 1966], No. 26644/67. Heading F1B. In an ignition system a primary circuit includes a battery 27, a primary winding of an induction coil 10, a switch 33 and a voltage and current limiting arrangement, a secondary circuit includes a secondary winding 12 of the induction coil and an ignition device for igniting the fuel air mixture and the voltage and current limiting arrangement is such that it limits to the value of the terminal voltage of the battery the peak transient voltage induced in the secondary winding when transformed to the primary winding and it has negligible impedance when this peak transient voltage is reached. As shown the arrangement comprises a parallel circuit of a resistor 29 and a saturable inductor 30 connected in series with the battery 27 and primary winding. The resistance of the resistor may be selected to critically damp voltage transients in the primary circuit and the saturable inductor may be designed to reach saturation when the voltage induced in the secondary winding transformed to the primary winding reaches the terminal voltage of the battery. An ignition system as claimed in Specification 1, 075, 889 may incorporate the features set out above. The switch may comprise a transistor the base of which is connected to contacts which when closed render the transistor conducting. A Zener diode may be connected across the transistor. In an alternative embodiment the device 41 is omitted.
GB26644/67A 1966-07-20 1967-06-09 Ignition systems Expired GB1123848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US566595A US3392716A (en) 1966-07-20 1966-07-20 Means for transient damping of an ignition coil

Publications (1)

Publication Number Publication Date
GB1123848A true GB1123848A (en) 1968-08-14

Family

ID=24263546

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26644/67A Expired GB1123848A (en) 1966-07-20 1967-06-09 Ignition systems

Country Status (3)

Country Link
US (1) US3392716A (en)
DE (1) DE1539204A1 (en)
GB (1) GB1123848A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725732A (en) * 1972-02-25 1973-04-03 Bendix Corp Voltage regulated transistorized ignition system for an automobile turbine engine
DE2338556C2 (en) * 1973-07-30 1982-09-09 Robert Bosch Gmbh, 7000 Stuttgart Ignition system for internal combustion engines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB186389A (en) * 1921-05-31 1922-10-02 Miles Walker Improvements in electrical controlling devices for electric motors
US1598192A (en) * 1921-09-15 1926-08-31 Niles Bement Pond Co Motor-control system
US3264521A (en) * 1962-12-06 1966-08-02 Gen Motors Corp Voltage suppression network for ignition systems
US3304926A (en) * 1964-05-07 1967-02-21 Clinton Augis Company Transistorized ignition apparatus
US3312210A (en) * 1964-10-12 1967-04-04 Ford Motor Co Ignition system

Also Published As

Publication number Publication date
DE1539204A1 (en) 1970-07-23
US3392716A (en) 1968-07-16

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