以增加的泵单元的排出压力的进料泵高泵在所述柱塞（1）和气缸套（2）是在所述密封垫圈的两侧（8）的薄间隔盘的分组（6）被布置，之间的密封位置输出一这在非密封的正常位置 活塞（1）可轴向移动。 在这种情况下，推荐的是该间隔包（6）之间的活塞的自由端（1B）（1）的朝向和（9），其连接该组垫圈之间的压力密封环安排（8），压力分布衬套 （6）和面向压力分配套管（9）前侧的密封环（8）迅速补偿。

To increase the delivery pressure of pump units of feed pumps high pump capacities on both sides of a sealing position between the plunger (1) and the cylinder liner (2) sealing gasket (8) packets of thin shims (6) arranged, which in the non-dense to normal position are on the piston (1) axially movable. It is recommended that, between that distance discs have a package (6) corresponding to the free end (1B) of the piston (1) facing, and the sealing ring (8) to arrange a pressure distribution bush (9), which the pressure between that package of sealing washers (6) and of the sealing ring (8) facing the end face of the pressure distribution bush (9) quickly equalizes.