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1.磁电机点火系为何能点燃混合气? 答:磁电机点火系不需要外来电源,它根据电磁感应的原理,利用永磁转子2旋转时铁芯上通过的交变磁通(即方向、大小交替变化的磁场)。在铁芯的初级线圈11内感应出低压交流电。当低压电流达最大值时,断电器8将电路切断,铁芯的次级线圈10内便感应出很强的高压电(15000伏以上),击穿火花塞7的电极间隙,产生火花,则点燃混合气(图1)。
1. Magneto ignition system can ignite the mixture? A: Magneto ignition system does not require external power supply, it is based on the principle of electromagnetic induction, the use of permanent magnet rotor 2 through the core when the alternating magnetic flux (ie, Alternating magnetic field of varying size). A low-voltage alternating current is induced in the primary coil 11 of the iron core. When the low voltage current reaches the maximum value, the breaker 8 cuts off the circuit, a strong high voltage (above 15000V) is induced in the secondary coil 10 of the iron core, the spark gap is generated by the breakdown of the electrode gap of the spark plug 7 Ignite the mixture (Figure 1).