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目前内燃机车上使用的燃油粗、精滤器的过滤精度难以满足使用要求，在柴油机出厂台架试验中，喷油泵卡死和喷油器雾化质量下降情况屡有出现。为了改变这种现状，对燃油粗滤器采用了获中华绿色科技银奖的SXL系列的专利滤芯与原滤芯作对比试验，取得良好效果。
At present, the crude oil used on diesel locomotives is rough, and the filtration precision of the fine filter is difficult to meet the requirements for use. In the test of diesel engine factory bench, the stuck fuel injection pump and the atomization quality of the injector often appear. In order to change the status quo, the SXL series of patent filter with the Silver Award of China Green Technology was compared with the original filter cartridge for the fuel strainer, which achieved good results.