Ceramic insulator for spark plug structure

Details Ceramic insulator for spark plug structure Ceramic insulator for spark plug structure

1989-08-25

1993-04-20

O'Shea, Sandra L.

Electric lamp and discharge devices

Spark plugs

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

313144, H01T 1320, H01T 1338

Patent

active

052045790

ABSTRACT:
A ceramic insulator structure for use in a spark plug is manufactured by mixing granular or powdery particles of AlN, Si3N.sub.4 or Al.sub.2 O.sub.3 with an organic binder and an auxiliary sintering agent, the average spherical diameter of the particles making up the resulting ceramic mixture being in the range 20-100 microns. The ceramic mixture is then pressed in a mold into a desired shape and sintered at a temperature of 1600.degree.-2000.degree. C.

REFERENCES:
patent: 2453048 (1948-11-01), Tognola et al.
patent: 4393324 (1983-07-01), Nishio et al.
patent: 4427915 (1984-01-01), Nishio et al.
patent: 4870319 (1989-09-01), Benedikt et al.
patent: 4949006 (1990-08-01), Oshima et al.

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