PRE-CHAMBER SPARK PLUG HAVING IMPROVED HEATING MANAGEMENT
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United States of America
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Issued Date -
Mar 13, 2025
app pub date -
Apr 26, 2022
filing date -
Apr 26, 2022
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Abstract
A pre-chamber spark plug. The pre-chamber spark plug includes a central electrode and at least one ground electrode, a housing, an insulator that electrically insulates the central electrode from the housing, a cap having at least one cap hole, and a pre-chamber having a defined gas volume. The insulator includes a base portion which protrudes into the pre-chamber in the axial direction over a base length and which is in contact with the gas volume, and wherein a ratio of the gas volume to the base length is in a range of: R=40 to 300 mm2.
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