Electric lamp and discharge devices – Spark plugs – Ring or disk electrode
Patent
1993-11-09
1995-07-04
Yusko, Donald J.
Electric lamp and discharge devices
Spark plugs
Ring or disk electrode
313141, H01T 122
Patent
active
054303460
ABSTRACT:
A spark plug for an internal combustion engine wherein a ring shaped ground electrode has a uniform annular hole with an internal diameter about 0.80 to 1.25 times the outer diameter of the center electrode. The ground electrode is vertically spaced below the center electrode and is concentric therewith. The ground electrode is connected to one or more mounting posts attached to a spark plug metal housing. Firing surfaces of the ground and center electrode have platinum alloy inserts laser welded in place. The spark from the center electrode to the ground electrode has multiple paths and results in a spark plug which improves fuel combustion, increases gasoline mileage and engine horsepower and torque and significantly reduces the smolder time or ignition delay time and consequently reduces environmental pollutants of nitrogen oxide, carbon monoxide and other hydrocarbons.
REFERENCES:
patent: 2487535 (1949-11-01), Fernandez
patent: 2894162 (1959-07-01), Ignatjev
patent: 4268774 (1981-05-01), Forkum
patent: 4465952 (1984-08-01), Sato et al.
patent: 4670684 (1987-06-01), Kagawa et al.
patent: 5280214 (1994-01-01), Johnson
Day Michael
Larson Herbert W.
Ultra Performance International, Inc.
Yusko Donald J.
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