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没有供油提前角记号时供油 提前角的调整 在平时的修理中,常遇到有的发 动机在飞轮和前端皮带盘均没有供油 提前角记号的情况。为此,我们采用 了一种比较方便且可靠的方法来确定 供油提前角。具体方法如下: ①分清该机的上止点记号位置是 在飞轮上还是在皮带盘上。②用钢卷 尺量出飞轮或皮带盘的周长。③查实 该机的喷油提前角。设喷油提前角的 角度为b。④计算喷油刻线在飞轮或 皮带盘上相对于上止点位置的弧长。 设该弧长为L,则
No fuel supply advance angle mark when the oil advance angle adjustment In the usual repair, often encountered some of the engine in the flywheel and the front belt pulley no fuel supply advance angle mark situation. To this end, we have adopted a more convenient and reliable method to determine the fuel advance angle. Specific methods are as follows: ① distinguish the machine’s top dead center mark position is on the flywheel or the belt reel. ② measure the circumference of the flywheel or belt reel with a steel tape measure. ③ Verify the aircraft fuel injection advance. Set injection angle angle of b. ④ calculate the fuel injection line in the flywheel or belt relative to the position of the top dead center arc length. Let the arc length be L, then