Zündkerze für Verbrennungsmotor und ihr Herstellunsverfahren

An iridium alloy firing tip (60), fixed to an opposing portion (31) of a center electrode, comprises a stem (61) and a head (62). The firing tip head (62) is integrally formed from one end of the stem. A diameter of the head (62) is larger than that of the stem (61). A distal end of the stem (61) is...

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Bibliographic Details
Main Authors KANAO, KEIJI, TAKAMURA, KOUZOU
Format Patent
LanguageGerman
Published 31.07.2008
Subjects
BASIC ELECTRIC ELEMENTS
CORONA DEVICES
ELECTRICITY
GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
INDUCTANCES
MAGNETS
OVERVOLTAGE ARRESTERS USING SPARK GAPS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
SPARK GAPS
SPARKING PLUGS
TRANSFORMERS
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Summary:An iridium alloy firing tip (60), fixed to an opposing portion (31) of a center electrode, comprises a stem (61) and a head (62). The firing tip head (62) is integrally formed from one end of the stem. A diameter of the head (62) is larger than that of the stem (61). A distal end of the stem (61) is opposed to an opponent electrode. The head (62) is embedded in the opposing portion. The firing tip head (62) is pointed or tapered in a direction opposite to the stem (61) from a maximum diameter portion (63) in such a manner that a cross-sectional area of the head (62) continuously decreases with increasing distance from the maximum diameter portion (63). The maximum diameter portion (63) is positioned deeply inside the opposing portion (41), and a base end of the stem (61) extending from the maximum diameter portion (63) is wrapped or surrounded by the opposing portion (41).
Bibliography:Application Number: DE20016031044T