Objet de la recherche «*».

The expression is used for hydraulic components where the electronic control is integrated within the housing for the device. It mainly applies to proportional valves and servo valves (Figure I 15) .

The statement of a nominal size for valves is essentially only a reference value, which - contrary to the previously used "nominal width (NW)" - does not provide any indication of the cross-sections a

Measures used to prevent sound from being passed on from the (active) sounds generators (in hydraulic systems : pump, motor, valves ) to downstream components that are capable of oscillating (passive

General : Flow rate under nominal operating conditions. These are the conditions for which a device has been designed based on its application and when not subjected to a load (CETOP RP 100). For cont

Refers to the compliance of system elements ( compressibility of the oil, elasticity of the pipe, spring effect of a hydraulic accumulator ): The hydraulic capacity should be kept as low as possible i

Covers measures for the detection of faults (monitoring the occurrence of a fault), fault localisation (finding the cause of the fault) and fault indication (i.e. providing information on the cause of

If an elastic material (elastomer or specific thermoplastics) is excessively deformed under pressure, lasting deformation may be caused such that after the end of the pressure action only part of the

Difference between the setpoint and actual value of the control variable . It is positive if the actual value is smaller than the desired value. A differentiation is made between: a residual control e

In a predetermined valve this is a factor of the size of the flow: the smaller it is, the greater the deviation from the desired value. ( Figure T 6 ). Flow dividers based on displacement units (e.g.

Feedback control system for adapting the programmed machining process on machine tools with the objective of safeguarding and optimising the process. It is characteristic that fluctuations in process