FR2394686A1 - IC engine capacitive discharge ignition system - uses voltage pulses induced in coil by rotating element to control transistor switch in step=up transformer primary - Google Patents
IC engine capacitive discharge ignition system - uses voltage pulses induced in coil by rotating element to control transistor switch in step=up transformer primaryInfo
- Publication number
- FR2394686A1 FR2394686A1 FR7718746A FR7718746A FR2394686A1 FR 2394686 A1 FR2394686 A1 FR 2394686A1 FR 7718746 A FR7718746 A FR 7718746A FR 7718746 A FR7718746 A FR 7718746A FR 2394686 A1 FR2394686 A1 FR 2394686A1
- Authority
- FR
- France
- Prior art keywords
- voltage pulses
- coil
- rotating element
- capacitive discharge
- ignition system
- 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
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
- F02P3/06—Other installations having capacitive energy storage
- F02P3/08—Layout of circuits
- F02P3/0807—Closing the discharge circuit of the storage capacitor with electronic switching means
- F02P3/0838—Closing the discharge circuit of the storage capacitor with electronic switching means 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 capacitive discharge system for use in an IC engine ignition system stores energy in a capacitor and an inductor simultaneously. The energy is derived from the motor and is used for magnetic type distributors without a circuit breaker. The efficiency of the system is increased and the faulty ignition characteristics of the SCR is improved. The sparks are of increased amplitude even when the battery is low. Voltage pulses are induced in a storage coil via a rotating element. The discharge capacitor, the silicon controlled rectifier and the ignition coil are in the secondary circuit of a step-up transformer. The timing is controlled via a switch in the primary of the transformer. The switch comprises a transistor driven at its base over a diode by the voltage pulses.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7718746A FR2394686A1 (en) | 1977-06-17 | 1977-06-17 | IC engine capacitive discharge ignition system - uses voltage pulses induced in coil by rotating element to control transistor switch in step=up transformer primary |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7718746A FR2394686A1 (en) | 1977-06-17 | 1977-06-17 | IC engine capacitive discharge ignition system - uses voltage pulses induced in coil by rotating element to control transistor switch in step=up transformer primary |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2394686A1 true FR2394686A1 (en) | 1979-01-12 |
FR2394686B1 FR2394686B1 (en) | 1983-12-30 |
Family
ID=9192252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7718746A Granted FR2394686A1 (en) | 1977-06-17 | 1977-06-17 | IC engine capacitive discharge ignition system - uses voltage pulses induced in coil by rotating element to control transistor switch in step=up transformer primary |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2394686A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0319496A1 (en) * | 1987-11-24 | 1989-06-07 | Saab-Scania Aktiebolag | A method for achieving an elevated charge of an ignition capacitor in a capacitive type ignition system |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3342167A (en) * | 1965-07-16 | 1967-09-19 | Gen Motors Corp | Voltage pulse generator controlled solid state ignition system |
US3372681A (en) * | 1965-03-10 | 1968-03-12 | Lucas Industries Ltd | Spark ignition systems |
US3465738A (en) * | 1966-11-04 | 1969-09-09 | Int Standard Electric Corp | Electronic ignition circuit for motor vehicles |
US3504373A (en) * | 1967-05-09 | 1970-03-31 | Bosch Gmbh Robert | Breakerless ignition system with magneto supply and transistor controls |
DE1916091A1 (en) * | 1969-03-27 | 1970-10-01 | Armin Lottermoser | Capacitor ignition system with thyristor control for internal combustion engines |
US3560833A (en) * | 1968-11-30 | 1971-02-02 | Nippon Denso Co | Ignition device with low source voltage compensating circuit |
FR2066000A5 (en) * | 1970-03-13 | 1971-08-06 | Ates Componenti Elettron | |
US3800771A (en) * | 1972-03-10 | 1974-04-02 | R Mackie | Ignition systems |
US3893438A (en) * | 1972-12-22 | 1975-07-08 | Autoelektronik Ag | Capacitor ignition device for internal combustion engines |
-
1977
- 1977-06-17 FR FR7718746A patent/FR2394686A1/en active Granted
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3372681A (en) * | 1965-03-10 | 1968-03-12 | Lucas Industries Ltd | Spark ignition systems |
US3342167A (en) * | 1965-07-16 | 1967-09-19 | Gen Motors Corp | Voltage pulse generator controlled solid state ignition system |
US3465738A (en) * | 1966-11-04 | 1969-09-09 | Int Standard Electric Corp | Electronic ignition circuit for motor vehicles |
US3504373A (en) * | 1967-05-09 | 1970-03-31 | Bosch Gmbh Robert | Breakerless ignition system with magneto supply and transistor controls |
US3560833A (en) * | 1968-11-30 | 1971-02-02 | Nippon Denso Co | Ignition device with low source voltage compensating circuit |
DE1916091A1 (en) * | 1969-03-27 | 1970-10-01 | Armin Lottermoser | Capacitor ignition system with thyristor control for internal combustion engines |
FR2066000A5 (en) * | 1970-03-13 | 1971-08-06 | Ates Componenti Elettron | |
DE2057520A1 (en) * | 1970-03-13 | 1971-09-30 | Ates Componenti Electronici S | Electronic ignition switch for internal combustion engines |
US3800771A (en) * | 1972-03-10 | 1974-04-02 | R Mackie | Ignition systems |
US3893438A (en) * | 1972-12-22 | 1975-07-08 | Autoelektronik Ag | Capacitor ignition device for internal combustion engines |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0319496A1 (en) * | 1987-11-24 | 1989-06-07 | Saab-Scania Aktiebolag | A method for achieving an elevated charge of an ignition capacitor in a capacitive type ignition system |
Also Published As
Publication number | Publication date |
---|---|
FR2394686B1 (en) | 1983-12-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |