Spark plug having firing pad
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United States of America Patent
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Jan 5, 2016
Issued Date -
N/A
app pub date -
Apr 28, 2015
filing date -
Jan 31, 2013
priority date (Note) -
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Abstract
A spark plug has a shell, an insulator, a center electrode, a ground electrode, and a firing pad. The firing pad is made of a precious metal material and is attached to the ground electrode. The firing pad has a side surface at a peripheral edge that can be flush or nearly flush with a free end surface of the ground electrode. This construction can help improve ignitability and flame kernel growth of the spark plug during a sparking event, and can provide better thermal management at the attached ground electrode and firing pad.
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