Spark plug

Details Spark plug Spark plug

1996-12-05

2000-11-14

Patel, Nimeshkumar D.

Electric lamp and discharge devices

Spark plugs

Particular electrode structure or spacing

313142, H01T 1320

Patent

active

06147441&

ABSTRACT:
A spark plug with a plug screw outer diameter D of 10 mm-12 mm, wherein the length A of the discharge gap 6, the width B of the gas volume 7, the protruding length C of the insulator 2 with respect to the fitting piece 1, the diameter F of the center electrode 3, the end diameter G of the noble metal tip 51 and the protruding height H of the noble metal tip 51 with respect to the center electrode 3 are within the following ranges:

REFERENCES:
patent: 3407326 (1968-10-01), Romine
patent: 4893051 (1990-01-01), Kondo
patent: 5101135 (1992-03-01), Oshima
patent: 5124612 (1992-06-01), Takamura et al.
patent: 5159232 (1992-10-01), Sato et al.
patent: 5465022 (1995-11-01), Katoh et al.

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