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Process to control the rotation speed by adjusting the torque with a reversible hydraulic motor in a system with impressed pressure ( constant pressure network ( Figure S 43 ). The rotation speed of t

Temperature at which the mineral oil still just flows under defined test conditions. It is somewhere between 6 and 8°C above the pour point . The pour point cannot be used to assess the characteristic

Basic structure whereby interactions take place within a kind of circle. This is the structure for resulting from the feedback of controlled variables required in this context ( Figure K 38 ).

Devices (e.g. measuring instrument or measuring devices ) on which the error and also the effects in defined test conditions are within defined limits; they can have a class identifier that mostly cor

Valve with two switching positions. In the case of the directional valves these are 2/2, 3/2 and 4/2 directional valves.

Hydraulic accumulators

Review of certain variables in terms of complaints with predetermined values, ranges or switching states. The variables to be monitored can be measured directly or may be the result of an evaluation (

A pressure oscillation , which expands at the speed of sound.

The sound pressure measured is not the same as that received by the human ear. To balance this out, the measured result is subjected to a method known as A-weighting. Here, the signal is amplified dif

Representation of all the possible paths associated with a program execution sequence (DIN 44 300). The program flowchart makes it possible therefore to provide an overview of the control sequence for