High tension cord cover with misfire detecting capacitor for int

Details High tension cord cover with misfire detecting capacitor for int High tension cord cover with misfire detecting capacitor for int

1993-04-29

1994-09-27

Cross, E. Rollins

Internal-combustion engines

Igniters

731173, F02P 1700

Patent

active

053499301

ABSTRACT:
A high tension cord cover disposed at an engine cylinder head for covering a groove in which high tension cords pass through for supplying an ignition voltage current to a spark plug of the engine. The cover is made of an insulation material and having a cord retaining section at the bottom surface facing the groove for retaining the cords in parallel with each other. A plate like conductor is embedded in the cover keeping a predetermined distance therefrom and sandwiching a portion of the insulation cover, whereby a capacitor, which constitutes a capacitive divider in cooperation with a second capacitor for detecting misfire through the ignition voltage, is formed between the conductive cores of the high tension cords and the plate like conductor. The conductor can be electrically shielded. A second member made of an insulation material can be provided in the groove underneath the cover for retaining the cords such that the conductor embedded in the cover is kept the predetermined distance from the cords.

REFERENCES:
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patent: 5179919 (1993-01-01), Foltz, Jr. et al.
patent: 5194813 (1993-03-01), Hannah et al.

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