This paper deals with the hydraulic model of a high pressure variable displacement vane pump for industrial applications. The simulation is based on a 0D model implemented in the Amesim® environment with customized libraries. The geometry of the pump is described analytically or numerically and different leakage passageways are taken into account. The evaluation of some critical parameters was performed by means of 3D simulations. A finite element analysis allowed determining the deformation of the port plate for correcting the current axial clearances. A CFD analysis was performed for the evaluation of the discharge coefficients in the valves of the displacement control. The model was validated experimentally in terms of steady-state flow-pressure characteristics and of displacement control dynamics.

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