JPS57102566A - Ignition unit for internal combustion engine - Google Patents

Ignition unit for internal combustion engine

Info

Publication number
JPS57102566A
JPS57102566A JP17719480A JP17719480A JPS57102566A JP S57102566 A JPS57102566 A JP S57102566A JP 17719480 A JP17719480 A JP 17719480A JP 17719480 A JP17719480 A JP 17719480A JP S57102566 A JPS57102566 A JP S57102566A
Authority
JP
Japan
Prior art keywords
discharge
thyristors
ignition
plasma
mismatching
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.)
Pending
Application number
JP17719480A
Other languages
Japanese (ja)
Inventor
Yasutake Ishikawa
Hiroshi Endo
Iwao Imai
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP17719480A priority Critical patent/JPS57102566A/en
Publication of JPS57102566A publication Critical patent/JPS57102566A/en
Pending 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
    • F02P9/007—Control of spark intensity, intensifying, lengthening, suppression by supplementary electrical discharge in the pre-ionised electrode interspace of the sparking plug, e.g. plasma jet ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

PURPOSE:To prevent the generation of mismatching discharge, even when a discharge starting voltage is lowered, by providing a closed loop which is formed for a large capacity of capacitor and its charging and discharging per air cylinder in a plasma ignition unit. CONSTITUTION:From a plasma ignition power source circuit 7, a charging current flows into and charges large capacity of capacitors 8a-8d through diodes 12a-12d and 14a-14d. A spark ignition circuit allows ignition plugs 6a-6d to discharge sparks in serial order. When an ignition timing control circuit 15 supplies a trigger pulse to thyristors 13a-13d respectively, the thyristors 13a-13d are turned on consecutively. A closed loop produced by the turned on thyristors allows the electric current to flow, thereby discahrging plasma. The thyristors 13a-13d are synchronized with only plugs which discharge sparks at a high pressure pulse Vig durig discharging and are triggered, thereby producing a conductivity condition. Therefore, mismatching discharge can be prevented.
JP17719480A 1980-12-17 1980-12-17 Ignition unit for internal combustion engine Pending JPS57102566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17719480A JPS57102566A (en) 1980-12-17 1980-12-17 Ignition unit for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17719480A JPS57102566A (en) 1980-12-17 1980-12-17 Ignition unit for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS57102566A true JPS57102566A (en) 1982-06-25

Family

ID=16026816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17719480A Pending JPS57102566A (en) 1980-12-17 1980-12-17 Ignition unit for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57102566A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63289261A (en) * 1987-05-20 1988-11-25 Hanshin Electric Co Ltd Ignitor for internal combustion engine
JP2012067707A (en) * 2010-09-27 2012-04-05 Daihatsu Motor Co Ltd Spark ignition method of internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63289261A (en) * 1987-05-20 1988-11-25 Hanshin Electric Co Ltd Ignitor for internal combustion engine
JP2012067707A (en) * 2010-09-27 2012-04-05 Daihatsu Motor Co Ltd Spark ignition method of internal combustion engine

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