Engine igniting coil device
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United States of America Patent
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-
Dec 21, 1999
Grant Date -
N/A
app pub date -
Aug 28, 1997
filing date -
Aug 31, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An engine igniting coil device adapted to be mounted in a cylindrical bore of an engine and directly connected with an ignition plug therein has a coil case containing an igniting coil assembly and made of conductive magnetic material which is held at the ground potential level, thus preventing a decrease of output factor of the igniting coil of produced magnetic flux when spreading about and passing through a cylinder head of the engine and eliminating the possibility of leakage discharge from a high-voltage portion of the igniting coil assembly to the coil case and the cylinder head.
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