Hydraulic System

A hydraulic drive system is a drive or transmission system that uses pressurized hydraulic fluid to drive hydraulic machinery. The term hydrostatic refers to the transfer of energy from flow and pressure, not from the kinetic energy of the flow.
A hydraulic drive system consists of three parts: The generator (e. G. A hydraulic pump), driven by an electric motor, a combustion engine or a windmill; Valves, filters, piping etc. (to guide and control the system); The motor (e. G. A hydraulic motor or hydraulic cylinder) to drive the machinery.
An open system is one where the hydraulic fluid is returned into a large, unpressurized tank at the end of a cycle through the system. In contrast, a closed system is where the hydraulic fluid stays in one closed pressurized loop without returning to a main tank after each cycle.