Low noise resistance containing spark plug

Details Low noise resistance containing spark plug Low noise resistance containing spark plug

1977-06-23

1979-03-13

Smith, Alfred E.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Plural circuit elements

315 58, 313131A, H01T 116, H01T 1220

Patent

active

041444744

ABSTRACT:
A spark plug is disclosed which is used for an internal combustion engine such as an automobile. The spark plug has a carbonaceous resistance sandwiched between its spark rod electrode and its terminal rod in the central through hole of an elongated hollow cylindrical ceramic insulator. The spark electrode is made of a heat and spark resisting semiconductive resistance material, is sealed integrally with the carbonaceous resistance in the central through hole of the insulator, and produces a spark discharge between a grounded electrode spaced therefrom by a predetermined gap. The spark plug of the above-mentioned construction enables the intensity of a noise wave produced upon the spark discharge to be suppressed to the lowest possible level.

REFERENCES:
patent: 3037140 (1962-05-01), Schurecht
patent: 3890518 (1975-06-01), Tombs

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