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Hydraulic Pumps      101



























          FIGURE 4.11  Classifi cations of hydraulic pumps.

               slides on the port plate, which includes two kidney-shaped control
               openings (see Fig. 4.13).
                   The driving shaft rotates around a horizontal axis while the axis of
               rotation of the cylinder block is inclined by an angle, α. The cylinder
               block inclination forces the pistons, which rotate with the cylinder



























                       1. Drive shaft, 2. Disk, attaching pistons, 3. Cylinder block,
                       4. Piston, 5. Port plate

               FIGURE 4.12  Illustration of a bent axis axial piston pump of conical pistons.
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