High efficiency, extended life spark plug having shaped firing t

Details High efficiency, extended life spark plug having shaped firing t High efficiency, extended life spark plug having shaped firing t

1995-04-03

1996-06-18

Bradley, P. Austin

Electric lamp or space discharge component or device manufacturi

Process

Spark plug or spark gap making

228160, H01T 2102

Patent

active

055271987

ABSTRACT:
A spark plug is provided which is suitable for use in a spark ignition system for an internal combustion engine. The spark plug is equipped with a specially configured firing tip on each of its electrodes for the purpose of minimizing the demand voltage of the spark plug, as well as extending the life of the spark plug by maximizing the time over which the demand voltage will remain within an acceptable level. For this purpose, the firing tips are configured such that their firing surfaces include at least three edges and three corners which serve as arc initiation sites of a relatively low resistance arc path between the electrodes.

REFERENCES:
patent: 1156799 (1915-10-01), Meaker
patent: 2946912 (1960-07-01), Christenson
patent: 3673452 (1972-06-01), Brennen
patent: 4540910 (1985-10-01), Kondo et al.
patent: 4700103 (1987-10-01), Yamaguchi et al.
patent: 5196760 (1993-03-01), Takamura et al.
patent: 5273474 (1993-12-01), Oshima et al.

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