Objet de la recherche «*».

Valve that can shut-off the flow in both directions. In fluid technology this valve is implemented in then form of a seated or ball valve. One of the most important sources of contamination in hydraul

Flow through a valve as determined by a given load and a specific signal. With continuously adjustable valves , the load flow is described in terms of the flow rate load function Q L=f(y,pL).

Measures for the automatic adjustment of the controller parameters . The majority of operations that are necessary for the re-optimisation of can be defined in schemas and described by formula-based r

The elements in hydrostatic displacement machines , which bring about the suction and transport process. They include, for example, the teeth in geared machines, the vanes in vane machines or the pist

Sum of all manipulations required to trigger certain functions in the process (in the system) using defined input signals (DIN 19 237). A distinction is made between analogue , digital and binary sign

Adjustments of positive displacement machines.

Design category for seals with a pronounced lip. The main examples are grooved ring seals with one or two lips ( Figure L 23 ), as well as roof-shaped seals and lip seals — although the latter are not

Squarewave AC signal from 70 to 400 Hz with low amplitude that is superimposed on the DC control voltage as "hum". The dither signal is used on continuously adjustable valves and has the task of placi

Valves for the control or feedback control of a flow rate. They are therefore used to control the velocity of cylinders and motors. A differentiation is made between: Throttle valves , which are press

Hydraulic motors which permit at least 1,000 min--1 as the upper rotation speed limit, with the lowest rotation speed determined by the hydraulic-mechanical efficiency factor. In the case of uncontrol