Hydraulic
Hydraulic known as fluid power uses several components; first a pump producing fluid flow after rotational force is applied from an engine or electric motor. A conduit system made of pipes, tubes, or hoses. A valve system that directs the fluid flowing into the valves through the conduits and on to any selected function or load and called a selective control valve. The load device known as a motor which rotates or an actuator which has a pull or push ability and commonly referred to as a hydraulic cylinder. After the fluid directed to the load is used the conduit system directs used oil back to the tank where it is filtered, and called a return filter.