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对圆锥阀的理论分析,直到现在都是基于层流流动的假设下进行的,以高粘度的液压油作为介质的情况下,这是可以的,而且与实测基本上是一致的。但是随着高水基的液体在液压工业中逐渐得到应用,就要考虑到高水基的特点—粘度低。例如在煤矿工业中广泛采用的水包油乳化液,其中水占有95～97％,乳化油占有3～5％。根据实验测定,运动粘度:23℃
The theoretical analysis of the cone valve was carried out on the assumption that the current is based on the laminar flow, which is possible with high-viscosity hydraulic oil as a medium and is basically in agreement with the actual measurement. However, as high-water-based fluids are gradually applied in the hydraulics industry, the high water-based characteristics - low viscosity are taken into account. For example, oil-in-water emulsions, which are widely used in the coal industry, comprise 95 to 97% water and 3 to 5% emulsified oil. According to the experimental determination, kinematic viscosity: 23 ℃