Standby pressure
Pressure that is preselected in the case of p/Q regulated hydraulic pumps as the pressure in the zero stroke phase on the proportional valve to minimise the power losses in dry runs. It is generally b
Control concept in fluid technology
Controls can be designed in very different ways and with highly different controller structures to achieve a certain pilot control behaviour . It then becomes a case of control concepts. The control c
Measuring instruments
Devices — located along the signal flow — which make up a measuring device and whose measuring characteristics (errors, chain of influences) are specific to the measuring device in question ( Figure M
Hydraulic power pack
A hydraulic power pack is a stand-alone assembly consisting of a drive motor, hydraulic pump and hydraulic fluid tank. The drive motor is connected to the hydraulic pump via a shaft and drives this. T
Return line
Line to feed the hydraulic fluid back to the container after the energy has been transferred. As with the Return line filter it must be designed according to the largest flow rate and not according to
Mooring control
Specific adjustment of a hydraulic motor in order to drive mooring winches, the idea being to generate constant tensile force when winding and unwinding the cable. In order to achieve this, the displa
Pipe capacity
Hydraulic capacity is a measure of the volume accommodated based on the pressure increase required. It is a function of the compressibility of the fluid. The compressibility of the oil in a pipe is in
Internal feedback control
that within a device or a closed system contain, e.g. a continuously adjustable valve or a linear amplifier , mostly a closed circuit position control system that improves the accuracy and reproducibi