Internal-combustion engines – High tension ignition system – Using capacitive storage and discharge for spark energy
Reexamination Certificate
2005-08-23
2005-08-23
Mohanty, Bibhu (Department: 3747)
Internal-combustion engines
High tension ignition system
Using capacitive storage and discharge for spark energy
C123S618000, C123S594000
Reexamination Certificate
active
06932064
ABSTRACT:
A capacitor discharge ignition (CDI) system includes a trigger circuit that generates a trigger signal in synchronism with operation of an engine for discharging an ignition capacitor. A timing circuit is connected to the trigger circuit for controlling the timing of the trigger signal and includes a timing coil for generating a timing signal in synchronism with operation of the engine. The timing circuit further includes a switch that has primary electrodes connected to the trigger circuit and a control electrode coupled to the timing coil for shorting the trigger circuit as a function of engine speed. The CDI system is thus capable of advancing engine timing to enable low-speed startup. The timing circuit is further adaptable to provide skip-spark speed-governing, timing retard speed-governing, and anti-reverse rotation of the engine.
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Kolak Lewis M.
LaMarr, Jr. Gerald J.
Mohanty Bibhu
Reising Ethington Barnes Kisselle P.C.
Walbro Engine Management , L.L.C.
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