Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the engineering uses of fluid properties. In fluid power, hydraulics are used for the generation, control, and transmission of power by the use of pressurized liquids.
A hydraulic drive system is a drive or transmission system that uses pressurized hydraulic fluid to power 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); and the actuator (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. See open and closed systems.
- Pressure control valves (PC Valves)
- Flow control valves (FC Valves)
- Direction control valves (DC Valves)
- Directly operated valve
- Pilot operated valve
- Manually operated valve
- Electrically actuated valve
- Open control valve
- Servo controlled valves
- Being modular
- Using different kinds of cylinders, valves, etc.
- Using PLC to learn programming
- Using an industrial electromotor
- Using one way flow controller
- Using pressure gauge to observe & control the pressure
- Using a strong metal structure