现代柴油机的寿命、耐久性和可靠性在很大程度上取决于滑油、燃油和空气的清洁度。所以,对为此目的而采用的滤器进行改进具有很大的国民经济意义。众所周知,最合理、最经济的滤器是由纤维结合而成的纸质材料及非织物材料所制成的一种表面式滤器,这些材料组成了较大表面的滤帘。对于这种滤器,《辐状星形》滤帘由于其制造工艺简单且便宜,所以在国内外的实践中获得了最普遍的应用。在保证滑油、燃油和空气最大流通能力的条件下,滤器作为一个挂在柴油机外的装置,其外形尺寸和重量应当尽可能小。滤器的流通能力首先受到滤帘流体 The life, durability and reliability of a modern diesel engine depend very much on the cleanliness of the oil, fuel and air. Therefore, it is of great national economic significance to make improvements on the filters used for this purpose. As we all know, the most reasonable and economical filter is a surface filter made of paper and non-woven materials made of fiber, which make up the curtain of larger surface. For this kind of filter, the “radial star” filter curtain has gained the most widespread application in the domestic and foreign markets due to its simple and cheap manufacturing process. Under the condition of ensuring the maximum flow capacity of oil, fuel and air, the filter should be as small as possible in size and weight as a device hanging outside the diesel engine. The flow capacity of the filter is first affected by the filter fluid