Plasma jet ignition plug with cavity in insulator discharge end

Details Plasma jet ignition plug with cavity in insulator discharge end Plasma jet ignition plug with cavity in insulator discharge end

1980-06-12

1983-08-02

Demeo, Palmer C.

Electric lamp and discharge devices

Spark plugs

Ring or disk electrode

313141, 313143, H01T 1320

Patent

active

043968554

ABSTRACT:
A plasma jet ignition plug comprises an electric insulator formed with a discharge cavity and a plurality of electrodes communicating with the discharge cavity to form, within the discharge cavity, a spark gap. The plurality of electrodes include a central electrode connected to a high voltage electric source and a low voltage electric source, and a peripheral electrode which is grounded. The peripheral electrode substantially closes the discharge cavity and is formed with a jet opening. At least that part of at least one of the plurality of electrodes which communicates with the discharge cavity is made of a material selected from a group consisting of ferrite, a nickel alloy containing at least one of silicon, aluminum and magnesium, and electrically conductive ceramic.

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"Materials & Techniques for Electron Tubes", by W. H. Kohl; Chapter 7, Table 7.1, p. 218, Table 7.4, p. 228; 1962.

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