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Control system on which the setpoint remains unchanged over an extended period apart from occasional adjustments (according to DIN 19 226). The primary task of such a feedback control is to regulate o

On continuously adjustable directional valves : The flow depends on the magnitude of the pressure drop assumed at the control edges as well as the magnitude of the opening cross-section and with it th

For the electric actuation of hydraulic devices on valves solenoids are used primarily in various versions as DC, AC or also as proportional solenoids . Electric stepper motors or DC control motors ar

This covers in terms of hydraulics the range from around 60 to 250 bar.

Transmission parameter. The range of the torque multiplication is given by the ratio of the maximum to the minimum torque of a hydraulic motor or hydrostatic transmission : The magnitude of the multip

Control of the flow rate of a hydraulic system by flow resistances in general with the objective of controlling the velocity of a cylinder or motor. For this purpose flow valves , manually controlled

with auxiliary energy, which amplifies the power. Example: Pneumatic pressure amplifier, electrical amplifier, for example with a signal voltage at the input and a signal current at the output with a

Entirety of all deviations on the actual surface from the geometrically ideal surface. On viewing the surface, a differentiation is made between coarser and finer deviations. For exact differentiation

Arrangement of the Return line filter "in the secondary flow", i.e. the filter is placed parallel to a throttle so that only one part of the returning oil flow is filtered ( Figure T 7 ). This arrange

Displacement machine, in which two or three screw spindles engage one another such that the edges seal against one another and against the housing. In displacement areas between the housing and the sp