In the technical literature numerous studies are found focused on the mathematical modelling of mechanical aspects of swash plate axial piston pumps. Instead, bent axis pumps are rarely considered despite their widespread use in mobile and fixed applications. This research paper presents the mechanical model of a bent axis pump that simulates the dynamic behaviour of the main measurable quantities (e.g. the shaft torque) and the mutual forces in interacting components. The model is parametric and thus apt in predicting the influence of geometric design variables on pumps mechanical characteristics. A number of simulation analyses grounded on the presented model and on an ADAMS multibody approach are considered and contrasted one another and with experimental torque data for validation purposes.

Keywords:  bent axis pump, modeling, simulation