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    • 26. 发明授权
    • Wide-gap ignition distributor
    • 宽缝点火分配器
    • US4475491A
    • 1984-10-09
    • US407314
    • 1982-08-12
    • Werner GrunwaldJurgen Schmatz
    • Werner GrunwaldJurgen Schmatz
    • F02P7/02H01R39/60H01T7/00F02P1/00
    • F02P7/022H01R39/60H01T7/00
    • In order to make possible the lower level of electrostatic disturbance that accompanies the use of a wider than usual gap in an ignition distributor without undesirable increase of the ignition pulse voltage, the distributor electrode and/or the fixed ignition circuit electrodes of the distributor are made at least in part of a material that requires less energy for pulling out an electron and has a higher secondary electron emission capability than the usual brass plate used for the contact plate at the axis of revolution of the distributor rotor, to which a carbon brush is usually provided for making contact. Alloy additions of calcium oxide or barium oxide or silicon to brass have a suitable effect and an alloy containing silicon and preferably also aluminum and calcium is preferred. The gap width is between 3 and 5 mm, preferably about 4 mm for normal motor vehicle engine application.
    • 为了使在点火分配器中使用比通常的间隙更宽的较低水平的静电干扰,而不会不期望地增加点火脉冲电压,分配器的分配器电极和/或固定点火电路电极被制成 至少部分是与分配器转子的转轴处的接触板所使用的通常的黄铜板相比,需要更少的能量来拉出电子并且具有较高的二次电子发射能力,碳刷是 通常提供接触。 将氧化钙或氧化钡或硅合金添加到黄铜中具有合适的效果,并且优选含有硅的合金,优选还包括铝和钙。 对于正常的机动车辆发动机应用,间隙宽度在3和5mm之间,优选地大约为4mm。