Selection basis and method on allowable contact stress of rolling ball-socket nozzle were described. Based on empirical formula and test data, several factors affecting allowable stress were analyzed. 叙述了滚动球窝喷管在设计中许用接触应力的选择依据及方法,并根据以往的经验公式及其试验数据对影响许用接触应力的几个因素进行了分析。
The cam designed with this new method, for the same allowable contact stress, is raised in the pump room pressure by about 11%, shortened in the delivery period by above 12% and improved in the performance of the fuel injection system. 所设计凸轮,在相同的许用接触应力情况下,可提高泵腔供油压力11%以上,供油时间缩短12%以上,改善了喷油系统性能。