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13问答网 > 影响点火系次级电压的因素有那些

影响点火系次级电压的因素有那些

2025-03-15 16:27:18

推荐回答（1个）

回答1：

电子控制点火系统由点火控制器直接驱动点火线圈进行点火。点火系统的要求：能产生足以击穿火花塞间隙的电压：火花塞电极击穿而产生火花时所需要的电压称为击穿电压。点火系产生的次级电压必须高于击穿电压，才能使火花塞跳火。击穿电压的大小受很多因素影响，其中主要有：1.火花塞电极间隙和形状：火花塞电极的间隙越大，击穿电压就越高；电极的尖端棱角分明，所需的击穿电压低。2.气缸内混合气体的压力和温度：混合气的压力越大，温度越低，击穿电压就越高。3.电极的温度：火花塞电极的温度越高，电极周围的气体密度越小，击穿电压就越低。

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