| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an ignition coil, in which voids are hardly left in an insulating resin material, injected into the gap between a tower housing and a high- voltage terminal. <P>SOLUTION: This ignition coil is provided with a cylindrical coil housing, the cylindrical tower housing 70 being disposed under the coil housing, and the high-voltage terminal 71 having an upper large-diameter section 77 demarcating a small gap 80 with the internal surface of the housing 70 and a lower small-diameter section 78 demarcating a large gap 81 made to communicate with the inside of the coil housing via the small gap 80 with the inner peripheral surface of the housing 70. This coil is also provided with the insulating resin material which is injected into and cured in the coil housing and tower housing 70. At least either one of the tower housing 70 and upper large-diameter section 77 has a void clearing passage 10, which makes voids 9 existing in the insulating resin material injected into the large gap 81 easily escapable into the coil housing. <P>COPYRIGHT: (C)2004,JPO</p> |
