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Device for converting hydraulic energy (Q, p) into mechanical energy (M, n) by creating a certain torque and rotation speed. Neither is dependent on the other: the rotation speed n 2 is only dependent

The efficiency of a valve is determined by the pressure losses and the leakage losses . In most cases, the pressure losses Δp dr, which are comprised of form-related losses (form drag ratio) and throt

Device used to control or the output of the fluid by influencing the start, stop and direction, as well as the pressure and/or flow rate of the pressure fluid acting in the system ( Figure V 3 ). Valv

As a hydraulic accumulator — regardless of the size of the current pressure required = load pressure p L –– is always charged up to the upper operating pressure p 2, during the removal, larger power l

Is undertaken using sensors that determine the acceleration of an element of a machine. This measurement is made using either seismic (inductive) sensors (Figure B 12) or using force sensors based on

Displacement machine in which the geometric displacement per cycle can be changed. For design-based reasons, this is only possible for vane and piston constructions. Variable pumps can be adjusted fro

Control whose program is stored in a program memory. The functional elements necessary to process the program and their connections are regarded as factors that cannot be altered. PLCs may be equipped

Designates the difference between the actual value of a control variable and the actual value of a reference variable. When using a regulator controller with a fixed set point, the control deviation d

Difference between the measured value and a limit value. Each measured value — and therefore each measurement result — is influenced by any imperfections associated with measuring instruments and meas

used to provide additional assistance for the controlled subsystem (e.g. an acceleration control circuit). A minor loop does not have to have a subordinate role.