ABSTRACT
The delivery of fluid power is based on the movement of pressurized fluid. A clamping cylinder can hold a workpiece by building pressure to a certain level. After the clamp closes, a force is applied, but no work is delivered to the workpiece. Contrast this example with the extension of a cylinder to move a load. When the load is contacted, pressure builds to overcome the static friction and inertia, and the load begins to move. The initiation of movement is the beginning of work delivery.
