Yuken Radial Piston Pumps
These pumps have pistons installed in a pattern radial to the pump rotating shaft. The pumps are more suitable for high pressure operation than the axial type.
Figure 2.7 shows the structure of a typical radial piston pump. Piston stroke is achieved with an eccentricity of the piston-sliding ring to the pump rotating shaft. These pumps switch suction and discharge per piston stroke in the ring. With a mechanism for ring eccentricity change added, the pumps allow their displacement to be adjusted.
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