The Theoretical and Experimental Studies Comparison of the Pressure Pulsation in the Discharge Chamber of the Gear Pump

The paper presents the mathematical model for the additional dynamic force calculation as a result of actuating fluid pressure pulsation in the discharge chamber of the gear pump taking into account the actuating fluid properties for the objective of the gear pump design elements loaded condition specification. The complex of the NSh-32K gear pump experimental studies was carried out, the empirical data allowed to compare theoretical and experimental studies of the pressure pulsation in the discharge chamber of the gear pump. The theoretical and experimental studies comparison reveals that the difference in the pressure fluctuation amplitude values in the discharge chamber of the NSh-32K gear pump does not exceed 14%. Thus, the consideration of the pressure fluctuation amplitude dynamic component in the discharge chamber of the gear pump allows to specify the design elements loaded condition of the gear pump and its operating resource in general.