JPS57102566A - Ignition unit for internal combustion engine - Google Patents
Ignition unit for internal combustion engineInfo
- 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
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.
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)
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 |
-
1980
- 1980-12-17 JP JP17719480A patent/JPS57102566A/en active Pending
Cited By (2)
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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