Sliding-vane pumps are widely used as sources of the flow in brake power transmission systems. A noticeable tendency in hydrostatic systems is revealed in the form of minimization of the mass, overall dimensions and at
the same time increasing of a power density delivered by pumps. The article presents the preliminary results of the studies related to a pressure pulsation of
the hydraulic system equipped with the sliding-vane pump . During the studies the pressure pulsation in selected places of pressure line were recorded. A series of measurements were performed for
selected settings of the system. The recorded characteristics were analysed in time and frequency domains.
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