JPS5564155A - Excessively-early ignition preventing mechanism of no-contact ignition device for internal combustion engine - Google Patents

Excessively-early ignition preventing mechanism of no-contact ignition device for internal combustion engine

Info

Publication number
JPS5564155A
JPS5564155A JP1699079A JP1699079A JPS5564155A JP S5564155 A JPS5564155 A JP S5564155A JP 1699079 A JP1699079 A JP 1699079A JP 1699079 A JP1699079 A JP 1699079A JP S5564155 A JPS5564155 A JP S5564155A
Authority
JP
Japan
Prior art keywords
ignition
primary coil
current
excessively
combustion engine
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.)
Granted
Application number
JP1699079A
Other languages
Japanese (ja)
Other versions
JPS578311B2 (en
Inventor
Seiji Horiuchi
Takeshi Kato
Yoshinori Oki
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.)
Mitsubishi Heavy Industries Ltd
Iida Denki Kogyo KK
Original Assignee
Mitsubishi Heavy Industries Ltd
Iida Denki Kogyo KK
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 Mitsubishi Heavy Industries Ltd, Iida Denki Kogyo KK filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP1699079A priority Critical patent/JPS5564155A/en
Publication of JPS5564155A publication Critical patent/JPS5564155A/en
Publication of JPS578311B2 publication Critical patent/JPS578311B2/ja
Granted 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
    • F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
    • F02P1/08—Layout of circuits
    • F02P1/083—Layout of circuits for generating sparks by opening or closing a coil circuit

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

PURPOSE:To insert the parallel circuit of a diode and a current control resistor between the emitter of a power transistor and a primary coil for preventing the excessively-early ignition due to the backward induction voltage generated in the primary coil. CONSTITUTION:When a fly-wheel 1 starts, the variation of magnetic flux occurs to a primary coil 3, and currents I2 and I1 flow in the order of mention. When a thyristor 11 has made continuity at a proper time (ignition time) while current I1 is flowing, power transistors Tr9a and 9b turn off to cut off current I1. Then, high voltage is induced in a secondary coil 4, and spark is generated on an ignition plug 7. If backward voltage is induced in the primary coil 3 at this time, a limited amount of the current I2 by a resistor provided in the parallel circuit of a diode 10 and a current control resistor 20 flows to the primary coil 3 from the base of the transistor Tr9b through a corrector so that the ignition generation of the ignition plug 7 can be prevented.
JP1699079A 1979-02-16 1979-02-16 Excessively-early ignition preventing mechanism of no-contact ignition device for internal combustion engine Granted JPS5564155A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1699079A JPS5564155A (en) 1979-02-16 1979-02-16 Excessively-early ignition preventing mechanism of no-contact ignition device for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1699079A JPS5564155A (en) 1979-02-16 1979-02-16 Excessively-early ignition preventing mechanism of no-contact ignition device for internal combustion engine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP10342373A Division JPS5053742A (en) 1973-09-13 1973-09-13

Publications (2)

Publication Number Publication Date
JPS5564155A true JPS5564155A (en) 1980-05-14
JPS578311B2 JPS578311B2 (en) 1982-02-16

Family

ID=11931459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1699079A Granted JPS5564155A (en) 1979-02-16 1979-02-16 Excessively-early ignition preventing mechanism of no-contact ignition device for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5564155A (en)

Also Published As

Publication number Publication date
JPS578311B2 (en) 1982-02-16

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