The control and containment forces on the swash plate of an axial piston pump utilizing a secondary swash-plate angle

In this paper, the control and containment forces acting on the swash plate of an axial-piston pump are examined. The most novel aspect of this research is that it includes the analysis of a secondary swash-plate angle that is occasionally used in aerospace pump applications. From a practical standpoint, swash plate control and containment devices take on many different designs; however, they must all resist the same essential moments and forces that attempt to dislocate the swash plate from its proper position. By considering the basic machine design, this work generally derives the needed forces and moments for insuring proper swash plate motion and thereby gives the designer of these machines a useful tool for designing control and containment devices of any type. In this research, it is shown that the secondary swash-plate angle has a significant impact on the problem of swash-plate control and containment.