| 摘要 |
PURPOSE:To inhibit noises due to an electromagnetic wave over wide zones, by varying a material of an electrode at the discharge side. CONSTITUTION:High tension generated by the working of an ignition coil is transmitted to a central electrode portion 2a of a rotary electrode 2 mounted to a rotor 1, and transmitted to an electrode 2b at the discharge side of the rotary electrode 2 through a resistor or an inductance element 3. The electrode 2b at the discharge side is provided with a plurality of fixed electrodes mounted through minute gaps, air in the minute gaps are dielectrically broken and distributed to a fixed terminal, and an ignition plug of an internal combustion engine is fed. Aluminum or aluminum alloy is used for the electrode 2b at the discharge side arranging the minute gaps of the rotor electrode 1. |
