CH609426A5 - Control circuit for increasing the dwell angle of a contact breaker-controlled coil ignition system - Google Patents

Control circuit for increasing the dwell angle of a contact breaker-controlled coil ignition system

Info

Publication number
CH609426A5
CH609426A5 CH620076A CH620076A CH609426A5 CH 609426 A5 CH609426 A5 CH 609426A5 CH 620076 A CH620076 A CH 620076A CH 620076 A CH620076 A CH 620076A CH 609426 A5 CH609426 A5 CH 609426A5
Authority
CH
Switzerland
Prior art keywords
contact breaker
switching
contacts
control circuit
timing circuit
Prior art date
Application number
CH620076A
Inventor
Toni Graeser
Original Assignee
Toni Graeser
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 Toni Graeser filed Critical Toni Graeser
Priority to CH620076A priority Critical patent/CH609426A5/en
Publication of CH609426A5 publication Critical patent/CH609426A5/en

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
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/045—Layout of circuits for control of the dwell or anti dwell time
    • F02P3/0453—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

The control circuit is intended for a coil ignition system in which the primary winding of an ignition coil is connected to a direct current source via a switching transistor and the flow of current across the primary winding is interrupted by the switching transistor which is disabled when the contacts of the contact breaker are opened and high-voltage for an ignition spark is induced in the secondary winding. The control circuit has a control transistor (T2) which is connected to an electric timing circuit (ZK) connected to the movable contact (7) of the contact breaker and is controlled by the electric timing circuit (ZK) to go into the switching state for disabling the switching transistor (T4) when the contacts (7, 8) of the contact breaker open and is controlled so as to go into the switching state to enable the switching transistor (T4) after the switching time of the timing circuit (ZK) has expired. The electric timing circuit (ZK) is excited by the opening of the contacts (7, 8) of the contact breaker and, even at the maximum speed of revolution of the engine, its switching time is shorter than the opening time of the contacts of the contact breaker in order to increase the dwell angle. <IMAGE>
CH620076A 1976-05-18 1976-05-18 Control circuit for increasing the dwell angle of a contact breaker-controlled coil ignition system CH609426A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH620076A CH609426A5 (en) 1976-05-18 1976-05-18 Control circuit for increasing the dwell angle of a contact breaker-controlled coil ignition system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH620076A CH609426A5 (en) 1976-05-18 1976-05-18 Control circuit for increasing the dwell angle of a contact breaker-controlled coil ignition system

Publications (1)

Publication Number Publication Date
CH609426A5 true CH609426A5 (en) 1979-02-28

Family

ID=4305846

Family Applications (1)

Application Number Title Priority Date Filing Date
CH620076A CH609426A5 (en) 1976-05-18 1976-05-18 Control circuit for increasing the dwell angle of a contact breaker-controlled coil ignition system

Country Status (1)

Country Link
CH (1) CH609426A5 (en)

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