Forming the flow processes in the positive-displacement rotary pumps exemplified by the gerotor pump (in Polish) Kształiowanie procesów przepływowych w rotacyjnych pompach wyporowych na przykładzie pompy gerotorowej

A theoretical model of the flow processes observed in the displacement chamber of pump was designed. Then, the model of the gerotor pump was developed by specifying relations established in a general theoretical model. The theoretical model was built and a series of theoretical examinations on the model was carried out. The influence of the selected operational parameters, the physical properties of working fluid, and the geometrical features of the gerotor pump on the pressure characteristics in the displacement chamber was determined. The system of parameters for comparing and evaluating the flow processes in the positive-displacement rotary pumps was developed. The experimental gerotor pump and the test stand were designed and constructed. Based on the verified theoretical and simulation models, the correct values of geometrical parameters (the angular displacement of the plate directional control valve) were specified for the gerotor pump of PGK series.