Ignition coil
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United States of America Patent
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Nov 7, 2017
Issued Date -
Dec 17, 2015
app pub date -
Jun 15, 2015
filing date -
Jun 16, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An ignition coil for delivering a spark-generating current to a spark plug includes a magnetically-permeable core; a primary winding disposed outward of the core; and a secondary winding radially surrounding the primary winding and inductively coupled to the primary winding, the secondary winding having a low-voltage end and a high-voltage end. The secondary winding includes a secondary winding first section proximal to the low-voltage end and having a first thickness. The secondary winding also includes a secondary winding second section proximal to the high-voltage end and having a second thickness that is less than the first thickness of the secondary winding first section.
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