Spark plug

Details Spark plug Spark plug

H - Electricity

01

T

H01T 13/20 (2006.01) H01T 13/32 (2006.01)

Patent

CA 2088032

ABSTRACT A spark plug for an internal combustion engine is disclosed including an annular end portion with a central electrode having an end within the annular end portion. A ground electrode extends from the annular end portion and has a portion extending over and spaced a predetermined distance above the end of the central electrode. The improvement comprises the end of the central electrode having cross-grooves therein defining four end faces and the ground electrode having diverging prongs at its end over the central electrode, a portion of each prong being over two adjacent end faces of the central electrode. Improved ignition is provided without critical manufacturing problems of prior art spark plugs.

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