发明名称 |
Copper-based sintered alloy electrode for use in ignition distributor of internal combustion engine |
摘要 |
An electrode for an ignition distributor of an internal combustion engine is disclosed which is made of a copper-based sintered alloy. The alloy contains a copper matrix, and grains of Al2O3 having an average grain size of 10 to 100 mu m. The Al2O3 grains are dispersed uniformly in the copper matrix at a ratio of from 45 to 60 percent by surface area as measured in an arbitrary cross-section. The electrode of this construction exhibits very low capacitive-discharge current peaks and starting voltages, and hence the generation of radio wave noise can be substantially eliminated.
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申请公布号 |
US5270501(A) |
申请公布日期 |
1993.12.14 |
申请号 |
US19920861442 |
申请日期 |
1992.04.01 |
申请人 |
MITSUBISHI MATERIALS CORPORATION;MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
MURAHASHI, NORIAKI;OHASHI, YUTAKA;KOHNO, TOHRU |
分类号 |
B22F5/00;C22C9/00;C22C32/00;F02P7/02;H01R39/60;(IPC1-7):H01H19/00;H01H1/00 |
主分类号 |
B22F5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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