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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

Arrangement of things side by side whereby both the inputs and outputs for elements are connected to each other. When hydraulic resistances are arranged in a parallel circuit, the flow rate in the ind

Hydraulic motor with constant displacement . Its variable rotation speed is determined solely by the (variable) pump or an upstream flow valve.

Sealing systems in which the two surfaces involved in the sealing process do not touch. Due to the remaining gap, non-contact seals can never seal completely. The most important representatives of non

Multi-circuit pump normally with an inclined axis design, but also a design according to the swash plate principle, in which two drives are included in one housing. In the case of an inclined axis des

In general : Range within which the are spread if the same input signal is repeated ( Figure W 11 ). Measurement technology : Quantitative expression of a random error, which arises if different teste

Pressure required to start or maintain the function of a valve (device). The control pressure can be, but does not necessarily have to be, identical to the pressure in the system. A differentiation is