Ignition system
Abstract
Abstract IS SUFFICIENT TO EXCITE THE ELECTRONIC SWITCH TO CONDUCT THUS DISCHARGING THE CAPACITOR THROUGH THE PRIMARY WINDING OF THE STEP-UP TRANSFORMER. A CAPACITIVE-DISCHARGE MAGNETO IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES IS PROVIDED. THE MAGNETO OUTPUT IS UTILIZED DURING ONE-HALF CYCLE TO CHARGE A CAPACITOR. DURING THE INITIAL STAGES OF THE HALF CYCLE, THE MAGNETO OUTPUT IS DISCHARGED TO GROUND THROUGH CONVENTIONAL POINTS. THE POINTS ARE OPENED AT A PREDETERMINED VOLTAGE LEVEL WHEREUPON DISCHARGE TO GROUND TERMINATES AND THE CAPACITOR IS CHARGED. THE CAPACITOR IS CONNECTED THROUGH THE PRIMARY WINDING OF A STEP-UP TRANSFORMER WHICH IN TURN IS CONNECTED TO A SPARKING DEVICE. A TRIGGER WINDING IS INDUCTIVELY COUPLED TO THE MAGNETO WINDING. THE OUTPUT OF THE TRIGGER WINDING IS CONNECTED TO THE EXCITAION CIRCUIT OF AN ELECTRONIC SWITCH WHICH COMPLETES A CIRCUIT FROM THE CAPACITOR TO GROUND. A VOLTAGE IS INDUCED IN THE TRIGGER WINDING UPON COLLAPSE OF THE FIELD OF THE MAGNETO WINDING. THE MAGNETO WINDING FIELD COLLAPSES WHEN THE CAPACITOR IS CHARGED. THE INDUCED VOLTAGE
Inventors
- 👤 M Mallory
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |