What do we mean by hydraulics?

Hydraulic systems are used in modern production plants and manufacturing installations.

By hydraulics, we mean the generation of forces and motion using hydraulic fluids. The hydraulic fluids represent the medium for power transmission. The object of this book is to teach you more about hydraulics and its areas of application. We will begin with the latter by listing the main areas for the application of hydraulics.

The place held by hydraulics in (modern) automation technology illustrates the wide range of applications for which it can be used. A basic distinction is made between:
• stationary hydraulics
• and mobile hydraulics

Mobile hydraulic systems move on wheels or tracks, for example, unlike stationary hydraulic systems which remain firmly fixed in one position. A characteristic feature of mobile hydraulics is that the valves are frequently manually operated. In the case of stationary hydraulics, however, mainly solenoid valves are used.

Other areas include marine, mining and aircraft hydraulics. Aircraft hydraulics assumes a special position because safety measures are of such critical importance here. In the next few pages, some typical examples of applications are given to clarify the tasks which can be carried out using hydraulic systems.

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