Jet nozzle spark plug

Details Jet nozzle spark plug Jet nozzle spark plug

2005-04-19

2005-04-19

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

Spark plugs

Particular electrode structure or spacing

C313S125000, C313S143000, C313S144000

Reexamination Certificate

active

06882092

ABSTRACT:
A spark plug having a ground electrode in the shape of a horn nozzle defined by an enlarged mouth and a reduced throat joined together, a conical inner wall tapered from the mouth to the throat. An ignitor electrode terminates at its distal end in a spherical tip disposed in the throat in spaced-apart relationship with respect to the tapered inner wall. An insulative body supports the ignitor electrode with a conductive body supporting the ground electrode. The horn nozzle is joined with the conductive body by a pair of posts so as to define a pair of slots for venting exhaust gasses from the ignition site.

REFERENCES:
patent: 5051651 (1991-09-01), Kashiwara et al.
patent: 5103136 (1992-04-01), Suzuki et al.
patent: 6670740 (2003-12-01), Landon, Jr.

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