MATHEMATICAL MODELING TO OBTAIN THE VOLUMETRIC PERFORMANCE OF A COMPENSATED VANE PUMP FROM THE CHARACTERISTICS PROVIDED BY THE MANUFACTURER
Keywords:
hydraulics, vane pump, volumetric performanceAbstract
About hydraulic pumps, volumetric performance is defined as the relationship between the actual flow rate of liquid to be moved with respect to the theoretical flow rate that should be moved based on the dimensions of the equipment. In the case of rotary vane pumps, this performance is due to the lack of filling of the internal cavities due to factors such as rotational speed, play between the moving parts, inertia and viscosity of the liquid, shape and dimension of the liquid inlet. to the pump cavities. This work provides a methodology to determine the volumetric performance through an equation obtained with the flow data that the manufacturer provides in operating catalogs, the flow versus pressure graphs is linearized, finding a general formula to obtain the volumetric performance of a model. of pump, equation with two variables that are the working pressure and the rotation frequency. The results show that the relative error of the results does not exceed 3%, which makes the procedure usable for any group of data obtained from the information catalogs of vane pump manufacturers.
Keywords: hydraulics, vane pump, volumetric performance.
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