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Behaviour of a hydraulic motor on transition from standstill to motion. Due to its design and the related friction and leakage losses, during starting a motor outputs a significantly lower useful torq

Distance that is required to form from a turbulent a laminar flow and vice versa. The formation of a laminar flow requires a significantly greater distance.

Minimum torque on the motor shaft of a hydraulic motor on starting from standstill. Above all the friction conditions during starting from rest (stiction) and at low speeds influence this parameter.

Behaviour of a drive (or other) machine from the start of motion to reaching a steady-state motion. It is dependent on the type and principle of operation of the machine as well as the behaviour of it

Sum of all requirements that are placed on a machine (installation) in chronological order and by location. The requirement profile defines the type and magnitude of the load on the devices used in th

Contamination of the hydraulic fluid in a hydraulic system prior to the first flushing. It comprises the contamination that is in the hydraulic fluid itself prior to filling the hydraulic system and t

Pressure difference that occurs on a new, clean filter, if a specific flow rate is passed through it. It is dependent on the layout of the filter element and the filtration grade as well as the viscos

Sealing performance of elastic seals that results from the preload during the installation of the seal. It corresponds to the sealing action of the related seal shape at very low pressure. The initial

When a control system is started, the controlled variable is in principle still outside its control range such that in this range, in some circumstances, it is necessary to check the effect of the lim

On the usage of a flow control valve the actuator will jump slightly on switching on the flow rate before the flow rate set becomes effective. This movement is termed startup discontinuity. It is caus