Spark plug having electrodes shaped to produce a hollow spark co

Details Spark plug having electrodes shaped to produce a hollow spark co Spark plug having electrodes shaped to produce a hollow spark co

1976-01-14

1977-03-29

Grimm, Siegfried H.

Electric lamp and discharge devices

Spark plugs

Ring or disk electrode

313141, 313142, 313143, H01T 1320

Patent

active

040151603

ABSTRACT:
An improved spark plug for use in internal combustion engines includes a center electrode positioned within the spark plug insulator member in a metal shell. The other electrode extends from the metal shell and has one end portion thereof spaced from one end portion of the center electrode. An annular spark discharging surface is formed on one end of the center electrode and an annular spark landing surface is formed on one end of the outer electrode with the discharging and landing surfaces being in opposed or facing relation and cooperating to provide a spark in the form of a hollow column.

REFERENCES:
patent: 1352592 (1920-09-01), Flatau
patent: 1486710 (1924-03-01), Whittier
patent: 2944178 (1960-07-01), Schaub

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