| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve ignitability to an air fuel mixture of a combustion chamber of an engine by increasing discharge positions in an ignition plug for an internal combustion engine.SOLUTION: An ignition plug (3) disposes a first center electrode (6), a second center electrode (7), and a ground electrode (8) in a triangular shape when viewed from an axial direction, and disposes an intermediate electrode (10), having respective apexes (10A to 10C) opposing to the first center electrode (6), the second center electrode (7), and the ground electrode (8), whose cross section is triangular, in a space (9) surrounded by the first center electrode (6), the second center electrode (7), and the ground electrode (8).</p> |
