FR2295248A2 - Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed - Google Patents
Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speedInfo
- Publication number
- FR2295248A2 FR2295248A2 FR7433147A FR7433147A FR2295248A2 FR 2295248 A2 FR2295248 A2 FR 2295248A2 FR 7433147 A FR7433147 A FR 7433147A FR 7433147 A FR7433147 A FR 7433147A FR 2295248 A2 FR2295248 A2 FR 2295248A2
- Authority
- FR
- France
- Prior art keywords
- spark
- independently
- internal combustion
- ignition system
- 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
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 system utilises an electronic circuit which can estimate the duration of one cycle of ignitiona nd can also fix the time of ignition with reference to the engine cycle so that the circuit of the ignition coil is opened and closed to provide a constant period of coil energisation at the precise phase of the engine cycle. This is achieved by using a condenser which retains a predetermined level of the charge acquired during the previous cycle and is then allowed to discharge at a constant rate by means of an isolating diode, a storage condenser and a transistor associated with a resistance.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7433147A FR2295248A2 (en) | 1974-09-27 | 1974-09-27 | Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed |
CH682275A CH606791A5 (en) | 1974-05-31 | 1975-05-28 | |
SE7506206A SE7506206L (en) | 1974-05-31 | 1975-05-30 | EXPLOSION ENGINE IGNITION DEVICE |
DE19752524043 DE2524043A1 (en) | 1974-05-31 | 1975-05-30 | Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed |
ES438086A ES438086A1 (en) | 1974-05-31 | 1975-05-30 | Device or ignition system for explosion engines. (Machine-translation by Google Translate, not legally binding) |
IT23871/75A IT1050719B (en) | 1974-05-31 | 1975-05-30 | IGNITION DEVICE FOR COMBUSTION ENGINES USING A LOGIC CONTROL CIRCUIT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7433147A FR2295248A2 (en) | 1974-09-27 | 1974-09-27 | Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2295248A2 true FR2295248A2 (en) | 1976-07-16 |
FR2295248B2 FR2295248B2 (en) | 1978-06-09 |
Family
ID=9143659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7433147A Granted FR2295248A2 (en) | 1974-05-31 | 1974-09-27 | Ignition system for internal combustion engine - maintains constant duration of spark independently of engine speed |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2295248A2 (en) |
-
1974
- 1974-09-27 FR FR7433147A patent/FR2295248A2/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2295248B2 (en) | 1978-06-09 |
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