| 摘要 |
An individual ignition type ignition coil device for engine which is directly connected to each spark plug for use, comprises a coil case 6, and a center core 1, a secondary coil 3 wound on a secondary bobbin 2 and a primary coil 5 wound on the primary bobbin 4 each concentrically installed inside the coil case 6 in turn from the inside to the outside. Insulating resin 17, 8 is filled between the interiorly installed structural members. The secondary bobbin is made of material of modified PPO mixed with inorganic matter of 30% or more.
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