ratio of diameters
square of ratio of diameters
inverse ratio of diameters
square of inverse ratio of diameters
two cylinders, two rams and a storage device
a cylinder and a ram
two co-axial rams and two cylinders
a cylinder, a piston, storage tank and control valve
accumulating oil
supplying large quantities of oil for very short duration
generally high pressures to operate hydraulic machines
supplying energy when main supply fails
waste valve closes suddenly
supply pipe is long
supply pipe is short
ram chamber is large