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Parameter for the power losses occurring in hydraulic systems, which can be noticed in the form of and leakage losses . There are also mechanical losses as a result of friction (Figure H 20) . A disti

Resistance which a fluid flowing inside pipes or similar bodies must overcome. It is higher for laminar flow than for turbulent flow: where A S = flow cross section.

Pressure surge

Collective term for hydraulic cylinders and hydraulic motors . Given the low losses associated with the drive, both have very low levels of damping (D H = 0.05 to 0.2).

A device used for velocity regulation and connected to a pneumatic cylinder or motor (hydropneumatic cylinder drive) (CETOP RP 100).

The terms covers not only the hydrostatic drive associated with a load, but also more generally the chain of effects involving hydraulic pump control hydraulic motor ( cylinder ), including the associ

Refers to the power produced by a flow rate Q at a pressure difference Δp: The theoretical hydrostatic power at the output side ignores any volumetric losses and hydromechanical losses. The effective

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

Describes the pressure difference required for a change in flow rate (acceleration) and based on the mass inertia: where l = length and A = cross section of the column of oil

Since actual fluids are compressible, they behave like a spring when pressure is applied to them: the higher the pressure, the more they are compressed and the smaller their volume becomes. The spring