Sparking plug

Details Sparking plug Sparking plug

1988-05-16

1990-06-26

O'Shea, Sandra

Electric lamp and discharge devices

Spark plugs

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

H01T 1336

Patent

active

049374842

ABSTRACT:
A coating layer made of a heat-proof insulating material is formed on the surface of a leg, exposed to the interior of the engine, of a ceramic insulator of a sparking plug. The coating is formed of a mixed solution of silicone oil blended with a mixture of parafin and ozokerite. The mixed solution contains 100 weight percent of silicone oil blended with paraffin by at least 5 weight percent and ozokerite by at least 0.2 weight percent.

REFERENCES:
patent: 4427914 (1984-01-01), Mizuno et al.
A Handbook of the Oil and Fats Chemical Products--A. Musuda & Editing Committee, pp. 403, 404 and rear page--Daily Industrial Press--Tokyo--Pub'd Oct. 30, 1963.

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