Creeping motion
Control process required in a mobile hydraulic drive system — with a specific (mechanical or electronic) relationship between the accelerator pedal position and the movement velocity — where a particu
Remote control
Control system on which the operating position is separate from the fluid technology systems such that the operating elements need to be operated over a greater distance. Operation can be using both h
Calibrating throttles
Devices with a defined form and dimensions as per DIN 1952 and which are used to measure air flows. They may take the form of an orifice ( a ), nozzle ( b ) or Venturi nozzle ( c ) ( Figure N 5) .
Regenerative circuit
Circuit that routes the outlet flow on the piston rod side on a differential cylinder to the inlet on the piston side to increase the flow velocity ( rapid traverse circuit ) (Figure 22) . As a conseq
Loading models for cylinders
They represent characteristic operating pressure-time curves for cylinders and make it easier to categorise cylinders with widely varying requirement profiles in relation to their load. Five basic loa
Damping of cylinder motion
Reduction of the piston velocity at one or both ends of the stroke to reduce mass forces. If the ends of the stroke are at the end positions of the piston, end position damping is used, which requires
AC solenoid
Solenoid , that works with alternating current (Figure W 3). AC solenoids have a shorter switching time than DC solenoids, greater tensile force and a simpler construction design. The disadvantage is
Correcting speed
Speed, at which the correcting variable is changed (DIN 19 226).
Cleanliness level
Characterises the number of particles present in hydraulic fluid . Purity classes are stated either in filter classes according to NAS 1638 — which specifies the permitted particle numbers in five par