Title: Spark plug
Application Number: 200520054373 Application Date: 2005.02.02
Publication Number: 000000000 Publication Date:
Approval Pub. Date: 2006.05.03 Granted Pub. Date: 2006.05.03
International Classifi-cation: H01T13/20
Applicant(s) Name: Lai Dian Address:
Inventor(s) Name: Lai Dian
Attorney & Agent: huang jingzhi huang shaosong
Abstract:
    The utility model relates to a kind of igniter fitting of the internal combustion engine, concretely is a kind of sparking plug used for the gasoline engine and provided with good ignition characteristic. The mentioned sparking plug includes a collecting electrode (2) located at the bottom of the metal connecting case, a ceramic insulator (3) and an emitting electrode (1) located at the inner body of the ceramic insulation, which is characterized in that: the working surface of the mentioned emission electricity or / and the collecting electrode is the convexity curved surface (11, 21). The mentioned convexity curved surface is made up with a cone 12, a 22 soldering flake processed by the precious metals welded respectively on the emitting electrode 1 and the collecting electrode 2. This utility model is used for the gasoline engine, whose service life is almost the same with the engine block
Time: 22