Internal-combustion engines – Igniters – Sparkers
Patent
1987-01-15
1987-12-15
Ostrager, Allen M.
Internal-combustion engines
Igniters
Sparkers
123198D, 123599, F02P 100, F02B 7700
Patent
active
047125217
ABSTRACT:
A breakerless electronic ignition system including a permanent magnet assembly, a transformer, an electronic ignition circuit and a cut off switch. In one embodiment of the system, a charging coil charges up a capacitor. The capacitor is connected in series with an electronic switching device and a primary coil of the transformer. The transformer primary coil has one end connected to the cut off switch which is normally closed and which is connected to ground. When the cut off switch is in the open position, current is prevented from flowing through the primary coil whereas the electronic switching device continues to be triggered as the engine coasts to a stop. In an inductive embodiment of the system, the primary coil of the transformer is also lifted from ground by the cut off switch to stop further generation of ignition sparks.
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patent: 4531500 (1985-07-01), Burson
Ostrager Allen M.
Tecumseh Products Company
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