Research

Hydraulics

Hydraulics deals with the mechanical properties of liquids. In fluid power, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids. The basic idea behind any hydraulic system is very simple: Force that is applied at one point is transmitted to another point using an incompressible fluid. The fluid is almost always an oil of some sort. The force is almost always multiplied in the process.

High-pressure oil from the pump is shown in light blue, and low-pressure oil returning to the tank is shown in yellow. Click the button to activate the piston!
In the figure above and to the right you can see how the valve can apply both forward and backward pressure to the piston. The valve used here, by the way, is referred to as a "spool valve" because of its resemblance to a spool from a spool of thread.





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