Spark plug

The utility model discloses a spark plug, comprising an insulator and a metal shell, wherein the metal shell surrounds the periphery of an insulation layer and protuberances distributed in ring shape are set at the flank of the insulator and a tipping port bending inwards is set on the top end of th...

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Bibliographic Details
Main Author SHEN HELIN
Format Patent
LanguageChinese
English
Published 18.03.2009
Subjects
BASIC ELECTRIC ELEMENTS
CORONA DEVICES
ELECTRICITY
GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
OVERVOLTAGE ARRESTERS USING SPARK GAPS
SPARK GAPS
SPARKING PLUGS
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Summary:The utility model discloses a spark plug, comprising an insulator and a metal shell, wherein the metal shell surrounds the periphery of an insulation layer and protuberances distributed in ring shape are set at the flank of the insulator and a tipping port bending inwards is set on the top end of the metal shell and an elastic piece placing cavity is formed between the protuberance and the tipping port and an elastic supporting piece is set in the elastic piece placing cavity and the tipping port presses the elastic supporting piece. The spark plug has features of simple structure, convenient manufacture and higher intensity of the metal shell and no breakage risk.
Bibliography:Application Number: CN20082120046U