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公开(公告)号：US4652705A
公开(公告)日：1987-03-24
申请号：US767361
申请日：1985-08-20
申请人： Naotaka Nakamura , Yoshimi Miyamoto , Motokazu Momiyama , Toshiji Tsubai, deceased , Tatsuo Teratani , Nobuyuki Ishihara
发明人： Naotaka Nakamura , Yoshimi Miyamoto , Motokazu Momiyama , Toshiji Tsubai, deceased , Tatsuo Teratani , Nobuyuki Ishihara
CPC分类号： F02P7/025
摘要： An ignition distributor having a radio wave noise suppressing function has a rotor electrode and counter electrodes. At least the cathodic one of the rotor electrode and the counter electrodes is provided at its end with a coating layer of a material which is a mixture of a metal oxide having a high electric resistance and a metal oxide which constitutes a dielectric body stable in a high-temperature atmosphere. The metal oxide having high electric resistance consists essentially of 10 to 50 wt % of Cu.sub.2 O and 90 to 50 wt % of CuO, while the metal oxide constituting the dielectric body essentially consists of 70 to 90 wt % of alumina with respect to the weight of the metal oxide having high electric resistance.
摘要翻译： 具有无线电波噪声抑制功能的点火分配器具有转子电极和对电极。 至少在转子电极和对电极的阴极上设置有具有高电阻的金属氧化物和金属氧化物的混合物的涂层的涂层，该金属氧化物构成在 高温大气。 具有高电阻的金属氧化物基本上由Cu2O的10至50重量％和CuO的90至50重量％组成，而构成电介质体的金属氧化物相对于氧化铝的重量主要由70至90重量％的氧化铝 金属氧化物具有高电阻。
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公开(公告)号：US5058560A
公开(公告)日：1991-10-22
申请号：US583699
申请日：1990-09-17
申请人： Hideo Asakura , Motokazu Momiyama
发明人： Hideo Asakura , Motokazu Momiyama
CPC分类号： F02P3/0435 , F02P2017/003
摘要： A contactless ignition apparatus for an internal combustion engine comprises a resin-molded closed magnetic circuit type ignition coil including an iron core constituting a closed magnetic circuit, a primary winding and a secondary winding wound around the iron core, respectively, and mold resin for insulating the primary and secondary winding, a semiconductor switching circuit for interrupting a current flowing to the primary winding, and an ignition plug to which a high voltage generated in the secondary winding upon interruption of the primary current flow to the primary winding by the semiconductor switch circuit. The falling rate dI/dt of the primary current upon interruption thereof by the semiconductor switching circuit is set at a value in a range of 0.2 to 0.4 A/.mu.s. Noise radiation from the ignition coil can be reduced significantly.
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