Anti-fouling spark plug

Details Anti-fouling spark plug Anti-fouling spark plug

1995-07-14

1997-05-27

O'Shea, Sandra L.

Electric lamp and discharge devices

Spark plugs

Shaped electrode chamber, insulator end, shell skirt, baffle...

313127, 313138, 313141, H01T 1300

Patent

active

056335571

ABSTRACT:
A spark plug for an internal combustion engine which has an electrode centrally mounted within an insulator with this insulator being mounted within an elongated housing. The outer end of the insulator is formed into a core nose with this core nose either being planar or mounded. Located directly adjacent the core nose and spaced slightly therefrom plus being spaced from the electrode is a ground ring. The electrical resistance is selected so that the spark will travel from the center electrode across the core nose and then jump the air gap at approximately the closest spacing distance from the ground ring and the core nose. The ground ring can be ported. The ground ring annular opening into the fire hole of the spark plug may be sawtoothed to form a mass of spark-emanating points.

REFERENCES:
patent: 2028971 (1936-01-01), Falor
patent: 3229032 (1966-01-01), Willis
patent: 3870918 (1975-03-01), Senda et al.
patent: 3958144 (1976-05-01), Franks
patent: 4110667 (1978-08-01), Graf Vom Hagen
patent: 4307316 (1981-12-01), McKechnie
patent: 4730582 (1988-03-01), Lindsay
patent: 5128583 (1992-07-01), Ma

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