In this research, the control and containment forces and moments acting on the swash plate of an axial-piston pump are examined. 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 without its control and containment mechanisms, 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. The success of the actual control and containment devices will be measured by how well they exert the proper forces and moments on the swash plate which are presented here.

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