供油提前角是柴油机的一个重要可调的参数,供油提前角也叫喷油泵供油时间,用曲轴转角表示,即喷油泵开始供油时活塞到达上止点前的曲轴转角。在使用中,由于零件磨损,供油提前角会发生变化,从而使柴油机出现下列症状:起动困难,严重者不能起动;机温过高,无负荷、额定转速十分钟,冷却水沸腾,耗水量增加,每小时超过2.5千克,触及机体烫手;工作无力,加负 Fuel supply advance angle is an important adjustable diesel engine parameters, fuel supply advance angle, also known as fuel pump fuel supply time, with the crank angle that the fuel pump to start when the piston reaches the top dead center crank angle. In use, due to wear parts, fuel supply advance angle will change, so that the diesel engine following symptoms: start difficult, serious cases can not start; machine temperature is too high, no load, rated speed ten minutes, cooling water boiling, water consumption Increase more than 2.5 kg per hour, touching the body hot; weak work, plus negative