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Hydraulic accumulator that uses a gas as the medium for applying a load to the hydraulic fluid (air for accumulators for water hydraulics , nitrogen for oil accumulators). As a consequence of the gas

After the acceleration and rapid phase of the cylinder the feed motion is introduced, in which a clearly defined velocity is to be observed. The force required here is determined by the working resist

Maximum permissible distance between oil level and intake port on the pump. If it is exceeded, the pump will not be completely filled, i.e. air bubble cavitation will occur. The intake height is depen

The change in pressure in a hydraulic system without throttling or storage corresponds to the related change in load pressure (taking into account the pressure losses ). On accumulator supplies , howe

Number of samples taken per unit time. The parameter is stated in Hz.

Ratio of the amplitude at the output of a transfer element to the amplitude of the input signal , e.g. in a servo valve the ratio between the spool position and the electrical control signal.

Systems are divided according to the order (priority) of the linear differential equations that they represent in systems of the 1st, 2nd, ... nth order. In doing so, the coefficients of higher-order

Computer which controls the workflow of a machine or device. Its main task is: Controlling NC machines and accompanying hand-held devices, Monitoring safety measures, Supervising the production proces

The density of a fluid changes with temperature and pressure. It reduces with temperature and increases with pressure (Figure D 12) . The density-pressure function is determined by, among other things

Preliminary note : The traditional language of hydraulic engineers takes particularly little notice of the difference between control and . Therefore, adjustment processes frequently involve talk of "