Spark plug and electrode arrangement therefor

Details Spark plug and electrode arrangement therefor Spark plug and electrode arrangement therefor

1992-06-12

1994-12-13

Yusko, Donald J.

Electric lamp and discharge devices

Spark plugs

Particular electrode structure or spacing

313141, 313139, 123169EL, H01T 1320

Patent

active

053732146

ABSTRACT:
The present invention provides an improved spark plug and electrode arrangement therefor. A central electrode has a sparking end adjacently positioned to and mated with a spark-receiving end of an outer electrode. At least one of the electrode ends has a protrusion extending towards the other electrode, and the other electrode has a geometrically mated indentation. A relatively uniform spark gap having increased surface area is provided therebetween. Hemispherical or rounded and conical protrusions and mated indentations are preferred embodiments of the present invention. The present spark plug electrode arrangement provides increased area sparks, regulates sparks under varied conditions and decreases incidence of carbon build up.

REFERENCES:
patent: 2031293 (1936-02-01), Wamelink
patent: 2371162 (1945-03-01), Field
patent: 3597648 (1971-08-01), Shibagaki
patent: 3940649 (1976-02-01), Berstler
patent: 4015160 (1977-03-01), Lara et al.
patent: 4023058 (1977-05-01), Lara et al.
patent: 4983877 (1991-01-01), Kashiwara et al.
patent: 5007389 (1991-04-01), Kashiwara et al.

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