Cd ignition system with spark retard in neutral

Details Cd ignition system with spark retard in neutral Cd ignition system with spark retard in neutral

F - Mech Eng,Light,Heat,Weapons

02

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317/5.35

F02P 3/00 (2006.01) F02P 1/08 (2006.01) F02P 5/145 (2006.01) F02P 5/155 (2006.01)

Patent

CA 1262754

ABSTRACT OF THE INVENTION A capacitor discharge ignition circuit adapted for use with an internal combustion engine, the circuit comprising a charge capacitor, a primary ignition coil, an ignition SCR, a first spark retard circuit in series with the charge capacitor, the ignition SCR, and the primary coil and operative for selectively preventing discharge of the capacitor through the primary coil for a first predetermined period of time after the ignition SCR in rendered conductive, thereby providing for automatic spark retard at higher engine rpm, a second spark retard circuit connectable to the first spark retard circuit for further preventing discharge of the capacitor through the primary coil for a second predetermined period of time in addition to the first predetermined period of time after the ignition SCR is rendered conductive, and a switch connecting the second spark retard circuit to the first spark retard circuit when the engine is in neutral.

491003

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