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The volume V0 of a hydraulic medium is reduced by the volume VD when the pressure Δp is increased. The factor is the reciprocal of the Kompressionsmodul K. The value of K can be assumed to be 1400 MPa

The volume V0 of a hydraulic medium increases (Vd) proportionally to the temperature difference with the expansion coefficient βT. For hydraulic oil, the expansion coefficient can be assumed to be 0.7

The flow rate Q of a hydraulic motor s calculated from the volume per revolution Vg, the rotary speed of the motor n and the volumetric efficiency factor ηv of the motor. Calculate the pump-flow of a

The moving time tc is calculated from the cylinder volume V (piston or annulus side) and the number of cylinders ic divided by the volume flow Q. Calculate the moving time directly and easily in our h

The speed of hydraulic cylinders is calculated from the flow rate Q, the effective area of the cylinder A (extend speed - piston area , retract speed - annulus area ) and the number of cylinders ic. C

The accumulator precharge pressure (p0-> p0h) changes with the ratio of the increased or decreased temperature T0h to the original temperature T0. Calculate the accumulator pressure on temperature cha

The oil volume Va of the annulus side of hydraulic cylinders is calculated from the diameter of the piston dp, the diameter of the rod dr the stroke length s and the number of cylinders ic. Calculate

The heating ΔT of an oil volume V (without heat dissipation) is calculated from the supplied power PH, the period Δt of power supply, the specific heat capacity of the medium c (~1.88 kJ/(kg*K) for Oi

The differential volume Vd between the piston side and the annulus side of hydraulic cylinders is calculated from the diameter of the rod dr, the stroke length s and the number of cylinders ic. Calcul

Non-contact seal from the group of labyrinth gap seals on which fluid flowing outward is pumped back by a counter-rotating thread on the shaft. Here a pointed, triangular thread has proven effective (