Objet de la recherche «fluides».

Resistance, which a fluid subject to friction must overcome when flowing through and valves . It is noticeable in the form of a pressure drop ( pressure loss ). The flow resistance comprises frictional

Volume counter (not a flow rate counter !) based on two oval rotors with special teeth which cause the fluid flow to rotate ( Figure O 12 ). The flow sensor with oval rotor assembly operates with great precision

seal of a double acting hydraulic cylinder, in the case of a poorly designed piston seal, pressure fluid can flow from one side of the piston to another in a short time, normally if very rapid pressure changes

will occur. The intake height is dependent on the type of pump and the viscosity of the hydraulic fluid.

rolled (piston) pumps, opens due to the vacuum cased by the reverse pistons and allows hydraulic fluid to flow through afterwards. In the lower reversal point of the piston, the suction valve is once again

End of a flow path in a device to which pipes for the transport of the hydraulic fluid to or from the device can be connected. As the type of port has a major effect on how the installation is assembled

Periodic pressure surge in a hydraulic fluid that is caused by the constant changing of the individual displacement units in a hydraulic pump from the suction phase to the pressure phase and vice-versa

Tabular summary of the dirt particles in a hydraulic fluid according to their particle size. The profile of contamination is increasingly being demanded of filter manufacturers by users as a purity requirement

In a closed hydrostatic system (closed box without moving in the fluid) pressure p is constant at each point. The pressure F is calculated as the force F per unit area A and the number of cylinders ic

Quantity of contamination in the hydraulic fluid after filtering . This is currently mainly measured and counted using automatic counting devices. The result is a profile of contamination in accordance