There are two types of hydraulic systems. These are mentioned below
Open-loop or open circuit: When the operating mechanism is idle, there will be fluid flow but no pressure in the open-loop system. In this, the fluid passage from the actuator to the reservoir and then to the pump inlet. It uses a directional control valve. The advantage of using this hydraulic system is it generates less heat compared to a closed-loop hydraulic system.
Closed-loop or closed circuit: In this system, when the pump operates there will be pressure for fluids. Unlike Open-loop, the fluid does not enter into the reservoir. The fluid flow only between the pump and the actuator. This system uses an additional pump called a feed pump or charge pump. The main advantage of using a closed-loop system is a precise response of actuation.
Hydraulic machines are the machine that is used to convert hydraulic energy into mechanical energy and vice versa. This type of machine utilizes hydraulic oil for actuation, power transmission, and wo...