PRECHAMBER IGNITION PLUG WITH OPTIMIZED CAP, AND INTERNAL COMBUSTION ENGINE

A prechamber spark plug. The spark plug includes a housing, a cap, which defines a prechamber at least partially, and which includes a plurality of through holes that are configured to produce a connection between the prechamber and a combustion chamber of an internal combustion engine; the through...

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Bibliographische Detailangaben
Hauptverfasser: STEIDTEN, Thomas, BLANKMEISTER, Matthias, KASKE, Stephan
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A prechamber spark plug. The spark plug includes a housing, a cap, which defines a prechamber at least partially, and which includes a plurality of through holes that are configured to produce a connection between the prechamber and a combustion chamber of an internal combustion engine; the through holes each having a hole center line; the cap including a recess at a region pointed towards the housing, the recess abutting the housing at a combustion-chamber-side end of the housing; a distance from an exit point of a through hole lying on the hole center line, to a recess, being in a range of 2 mm to 7 mm; and a first angle between a center axis of the prechamber spark plug and the hole center line being in a range of 30° to 70°. An internal combustion engine including such a prechamber spark plug is also described.