Inductive ignition control system
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United States of America Patent
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-
Jan 13, 2009
Grant Date -
Oct 12, 2006
app pub date -
Mar 17, 2006
filing date -
Mar 18, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for producing an ignition spark in an internal combustion engine. The apparatus comprises an inductive ignition device having a primary coil and a secondary coil, flow of current through the primary coil being controlled by an electronic switching element (e.g., a transistor) responsive to a triggering signal. A rotatable body (e.g., the engine flywheel) having detectable features on a periphery thereof is also provided. A sensor device is located adjacent to the rotatable body at a fixed position and is operative to produce an output in response to the detectable features. The apparatus also includes a controller operative to receive an output from the sensor device and responsively produce the triggering signal so as to have a selected dwell time and ignition position.
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