柴油滤芯在柴油系统中，用于滤除工作介质中的，固体颗粒及胶状物质。以及滤除各种油系统中从外部混入或系统运转中内部产生的固体杂质，它可以有效的控制工作介质的污染度，保护机械设备的正常工作。
柴油滤芯主要安装在柴油系统中的：吸油路上、压力油路上、回油管路上、旁路上，单独的过滤系统上。

In the diesel system, the diesel filter element is used to filter out solid particles and colloidal substances in working media. And filter out the solid impurities generated from external mixing or internal operation of various oil systems, which can effectively cool the pollution of working media and protect the normal operation of machinery and equipment.

The diesel filter element iainly installed in the diesel system: on the suction road, on the pressure oil road, on the return pipeline, on the bypass road, and on the separate filter system.