Spark plug with a ground electrode concentrically disposed to a central electrode
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United States of America Patent
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Jan 18, 1994
Issued Date -
N/A
app pub date -
Feb 19, 1993
filing date -
Oct 13, 1989
priority date (Note) -
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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 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. 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 significantly reduces the smolder or ignition delay time and environmental pollutants such as oxides of nitrogen, carbon monoxide and hydrocarbons.
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