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Transfer function of the subsystem with respect to changes to the correcting variable (DIN 19 226).

Design of hydraulic motors with a radial arrangement of pistons . Radial piston motors are predominantly slow speed high torque motors in which several pistons are positioned perpendicular to the driv

Gas pressure that is applied to a fluid vessel with or without separator. On hydraulic accumulators the gas filling pressure corresponds to the precharge pressure. Example: hydropneumatic accumulator

Servo valve

Filter arrangement, within a circuit separated from the main flow, incorporating a separate pump and in most cases a twin filter . This separation from the main circuit makes it possible to be very pr

Flow resistor which takes the form of a cylindrical pipe and whose length is much greater than the diameter d. For Newtonian fluids, the flow rate through these kinds of flow resistors is mainly deter

Hard-wired control on which changes to the program are not intended to be made. These include, e.g. controls on which the program is defined by printed circuit board wiring , solder joints, screw, wra

Directional valve with six ports: In addition to the four ports A, B, P and T, in the centre position, a continuous line is formed for the flow rate to downstream consumers ( parallel connection ( Fig

Dimensions of solid contamination elements or foreign particles in the pressure fluid. These impurities may be caused by various things: debris associated with metallic and non-metallic particles prod

If hydraulic cylinders are operating in a closed circuit position control system , it makes sense to integrate the associated position measuring system within the cylinder, since it often proves very