随着微处理机的广泛应用,对于开关型阀的需求将日益增加。电液词服阀作为开关阀使用的主要缺点是:成本高、对污染敏感、惯性大、磨损大、结构疲劳等。很明显,要满足快速开关下的开关阀的要求,滑阀结构是不理想的。因此,学者Pos t.k.H 对各种小型的随意浮动球装置进行了研究。靠电磁场直接驱动球阀的缺点是它产生的吸力小,难以克服液动力。 With the widespread use of microprocessors, the demand for on-off valves will continue to increase. Electro-hydraulic valve word service valve as the main drawbacks of using the valve is: high cost, sensitive to pollution, inertia, wear and tear, fatigue and other structures. Obviously, to meet the requirements of the on-off valve under the quick switch, the slide valve structure is not ideal. Therefore, the scholar Pos t.k.H studied a variety of small free-floating ball devices. The disadvantage of directly driving the ball valve by the electromagnetic field is that it produces little suction and it is difficult to overcome the hydrodynamic force.