VARIABLE DISPLACEMENT FLUID TRANSLATING DEVICE LIKE A PUMP

摘要

An axial piston type fluid energy translating device has fluid passages in the pistons, shoes, swash plate and cam member to conduct fluid from the high pressure port to pockets on the back of the cam member adjacent the cam support. The high pressure fluid in the pockets counter-balances the force applied to the swash plate and cam member by the pistons exposed to high pressure fluid.