Force as pressure function is defined:
Hydraulic cylinders are used to move or hold working elements e.g. Industrial device.
Cylinder uses thrust of the working fluid on specific pressure that is recived from energy source and directed by the valve device.
It can be distinguished between single- and double-acting cylinders.
In single-acting cylinder piston move is result of the effect of pressure differential caused by direction of the working fluid on specific pressure.
Retraction of the piston is due to external pressure caused by e.g. appropriately tense spring (with possibility of outflow of provided fluid).
In double-acting cylinder moves of the piston in two oposite directions are forced due to right pressure differential which means it depences on appropriate inflow of the working fluid on the specific pressure to the cylinder only. It has to be noted that free outflow from the oposite side of the cylinder is possible at the same time.
FORCE EXERTED BY THE CYLINDER
The working fluid creates specific axial thrust on cylinder's piston rod. It depences on piston and piston pod gemetrical dimensions and fluid pressure.