Hydraulic system in modern industrial construction is not uncommon, it has the advantage of minimal friction than chain, gear and other conduction mode, but why hydraulic system will produce greater energy.
Industrial hydraulic system
First of all we can look at the principle of the hydraulic system, the principle of the hydraulic system is actually the use of fluid mechanics PASCAL's principle, the pressure in the liquid, so that small pressure control large pressure, a bit like the lever principle. The compressibility of a liquid is generally so small that it is considered incompressible in hydrostatics. In an incompressible stationary liquid, the effect of an external energy at any point is transmitted instantaneously to all points of the fluid. This is PASCAL's law.
A lot of mechanical equipment USES hydraulic system to drive executive, the excavator that sees in life, bulldozer, crane, even car brake system also USES hydraulic system to drive. In fact, the basic principle of the hydraulic system is simple, through the incompressibility of some kind of oil as a medium, the action of a energy to transfer to another point, in the process of transmission and the energy is usually increased. Since the liquid medium used is incompressible, almost all energy are transferred to another point.
And if you use the lever principle in the hydraulic system, and you use the energy times the distance that you're moving as a way of increasing the energy, you can get the hydraulic system to lift the transmitted energy, and that's why the hydraulic system has a larger energy.