Spark plug and a method of making the same for an internal combu

Details Spark plug and a method of making the same for an internal combu Spark plug and a method of making the same for an internal combu

1994-07-06

1996-11-12

Yusko, Donald J.

Electric lamp and discharge devices

Spark plugs

Particular electrode structure or spacing

313118, H01T 1332

Patent

active

055743293

ABSTRACT:
A spark plug including a tubular insulator supported within a metallic shell, and a center electrode provided to axially extend within the insulator. An outer electrode is secured to a front end of the metallic shell so as to extend toward an elevational side of the center electrode. A first spark-erosion resistant noble metal tip is secured to an outer surface of the outer electrode, the outer electrode extending across a front open end of the metallic shell so as to form a spark gap between an extended end of the tip and the elevational side of the center electrode.

REFERENCES:
patent: 2003464 (1935-06-01), Rabezzana
patent: 4329174 (1982-05-01), Ito et al.
patent: 4700103 (1987-10-01), Yamaguchi et al.
patent: 4893051 (1990-01-01), Kondo et al.

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