Electronic Control of Hydraulics for Earthmoving Equipment 840787

The use of electronic controls in mobile hydraulics has been increasing in the past few years. The introduction and acceptance of the proportional directional control valve has been the most important advancement in this technology. The proportional valve is used to control the propel pumps and motors alone with hydraulic load sensing to assure that forces and speeds are always available in the correct ratios.
Examples of proportional control and load sensing arc described for several applications in mobile earthmoving equipment. Advantages of remote proportional control are demonstrated with ease of operation, flexibility, operator safety and energy conservation foremost in interest.


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