Engine igniting coil device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 4, 2000
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 directly attachable to an igniting plug, wherein both primary and secondary coil bobbins have flangeless ends, the secondary coil bobbin has inwardly protruding ribs for coaxially supporting the flangeless end of the primary coil bobbin mounted therein and the secondary coil bobbin also has protrusions formed at its external wall apart from a high-voltage terminal of the secondary coil wound thereon and is coaxially mounted in a coil case by abutting its protrusions on an inner wall thereof, thus eliminating the possibility of damaging the bobbins by a large thermal stress produced in solidified insulating resin in a coil case by a differential thermal shrinkage in an axial direction and preventing a leakage current from a high-voltage side of the secondary coil bobbin to the coil case through a flange-like connection.
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