Гідропривод з пружно-гідравлічним дозуванням рідини

Abstract

It is shown the possibility of the hydraulic drive positioning by means of dosing supply of a working fluid. The proposition is based on the elastic deformation of a pipeline and compressibility of the working fluid. It is established that the pressure difference between the pressure line and the drain line can change the mass of liquid in pipe. It is proposed to install additional valve in the pressure and/or drain line which, together with the connecting pipeline and control valve, will form an elastic-hydraulic fluid doser. The results of modeling experiments allow to set values of fluid portions depending on supplying pressure, external load, volume of the connecting line and properties of the working fluid. A simplified hydraulic drive scheme with the elastic-hydraulic fluid doser has been developed.