Spark plug for an internal combustion engine
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United States of America Patent
Stats
-
Mar 11, 1997
Issued Date -
N/A
app pub date -
Dec 27, 1994
filing date -
Jul 12, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spark plug has a base with a bottom end portion adapted to be received and retained by a cylinder head of an internal combustion engine. An insulator retains a central electrode within the base with a combustion chamber end of the electrode extending into a combustion chamber of the engine when the plug is installed in the cylinder head. The central electrode combustion chamber end includes a combustion chamber end face with a hole having the physical characteristics of an acoustically tuned pipe with an open and a closed end formed in its surface. A ground electrode is attached to the base and defines a spark gap between its inner surface and the central electrode face. The ground electrode has a hole passing through it which has the physical characteristics of an acoustically tuned pipe with two open ends.
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