Breakerless ignition system with auto- matic spark advance using triggering coil
Abstract
Abstract AN IGNITION SYSTEM FOR USE WITH AN ENGINE HAVING A SPARK GAP IGNITION DEVICE INCLUDES A FIRST TRIGGERING COIL HAVING ITS AXIS ARRANGED GENERALLY TANGENTIALLY TO THE CIRCULAR PATH OF A MAGNET ASSEMBLY FIXED TO ROTOR ROTATED IN SYNCHRONSIM WITH THE OPERATION OF THE ENGINE. A RAMP VOLTAGE IS INDUCED IN THE FIRST COIL AND TRIGGERS AN ASSOCIATED SWITCHING DEVICE TO CAUSE A SPARK WHEN THE INDUCED VOLTAGE REACHES A GIVEN TRIGGERING VOLTAGE, THE STEEPNESS OF THE RAMP BEING DEPENDENT ON THE ROTOR SPEED SO THAT AT DIFFERENT SPEEDS THE TRIGGERING VOLTAGE IS REACHED AT DIFFERENT ROTOR POSITIONS. A SECOND TRIGGERING COIL CONNECTED IN PARALLEL WITH THE FIRST COIL AND HAVING ITS AXIS ARRANGED GENERALLY RADIALLY OF THE CIRCULAR MAGNET PATH PRODUCES A TRIGGERING VOLTAGE FOR CAUSING A SPARK AT A DEFINITE ROTOR POSITION DURING LOW SPEED OPERATION. THE MAGNET ASSEMBLY IS ALSO USED IN CONJUNCTION WITH ANOTHER COIL FORMING PART OF A CONDENSER DISCHARGE SYSTEM FOR GENERATING THE ELECTRICAL POWER USED TO PRODUCE THE SPARK.
Inventors
No inventors recorded.
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |