A secondary swash plate angle, also known as a cross angle, has been used in the past to reduce flow ripple with great success. However, for the past two decades, research in this field has been scarce. In this paper, a pressure controlled 9-piston pump is investigated to determine the effects of the cross angle on commutation, acting forces and torques, as well as volumetric flow rate pulsations. A detailed description of the piston kinematics, the simulation model used, and the subsequent simulation results are presented in this contribution.

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