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近年来,有些作者〔1～5〕对出油阀的卸载带和它的导向部分之间的间隙进行了研究。他们所得的结果是不同的,而且往往又是矛盾的。比如说,根据文献〔1～2〕中的数据可以得出这样的结论,柴油机在额定工况下工作时,出油阀的径向间隙δ对喷油参数影响不大,而在低负荷工况下工作时,则有明显的影响。然而在文献〔4〕的柴油机试验中,则证实了循环供油量略有增加。当间隙由5微米增至60微米时,在额定工况下循环供油量共
In recent years, some authors (1-5) have studied the clearance between the discharge valve of the delivery valve and its guide portion. The results they receive are different and often contradictory. For example, based on the data in [1] and [2], it can be concluded that the radial clearance δ of the delivery valve has little effect on the injection parameters when the diesel engine is operating under rated conditions. However, When working under the circumstances, there is a clear impact. However, in the diesel engine test [4], it was confirmed that the circulating fuel supply increased slightly. When the gap increased from 5 microns to 60 microns, under the conditions of the total circulating fuel supply