Ignition plug for use in internal combustion engines and an igni

Details Ignition plug for use in internal combustion engines and an igni Ignition plug for use in internal combustion engines and an igni

1989-02-22

1990-02-20

Nelli, Raymond A.

Internal-combustion engines

Igniters

Sparkers

123169E, F02P 100

Patent

active

049016881

ABSTRACT:
An ignition plug of this invention is characterized in that a ground electrode thereof has a recess that faces the side surface of a single center electrode; more particularly, in the case of an L-shaped ground electrode whose free end is opposed to the center electrode with a spark gas in between, the recess is provided to on the free end of the ground electrode so that it can hold plentiful gas mixture to ignite near the spark gap by increasing its capacity with the increase of distance from the side surface of the center electrode; thus, the farther the igntion proceeds into the recess, the more intensively gas mixture is ignited, whereby instantaneous combustion can be caused in the entire space of a combustion chamber.

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