Mooring control
this, the displacement is adjusted in line with the pilot pressure , while maintaining a constant torque level, although this may be modified in accordance with the conditions. If the cable is not under
Energy saving in hydraulics
measures (Table E 2) : Design improvements on pumps and valves by the manufacturer, Selection of designs with better efficiency by the user, Reduction of the power losses by means of corresponding dimensioning [...] multiple pumps or variable pumps , Energy-saving circuits ( load sensing, closed circuit , motors with secondary regulation), Measures for energy recovery.
Compressibility
Characteristic whereby every genuine fluid reduces in volume under pressure. The compressibility associated with mineral oil is also dependent on the temperature and the kind of change of state involved (Figure
High pressure filter
pressure line within a circuit. The housing, therefore, must withstand the nominal pressure associated with the system, although this is not the case for the filter element .
Signal processor
Processor with a reduced instruction set, which is specifically designed to rapidly process signals as required for arithmetic tasks. Signal processors are therefore used for rapid solutions of the Fourrier
Creep feed (speed)
Slowly approaching a position. This is used in feed mechanisms with a high rapid traverse speed directly before the position is reached in order to achieve optimal position accuracy ( Figure S 28 ).
Suction pressure control
quantity of a piston compressor (related to the normal state) varies as the suction pressure is changed, with the suction valve raised more or less by a release valve during the compression stroke.
Circuit diagram
chart circuit diagram used as a summary view of the circuit and programmed function of controls and with memory-programmable equipment (DIN 40 719 Part 61).
High torque motors
Term for — mainly slow-speed — hydraulic motors with very high displacement and therefore very high torque. High torque motors are generally designed as multi-stroke hydrostatic motors in terms of the
Large signal range
Operating range of a continuously adjustable valve with high performance, i.e. more than 50 % of I nom, as is necessary for moving to a point or reversing the direction. Opposite: Small signal range