Tags: Gear Pump

Hydraulic Fixed Displacement Pumps

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Hydraulic Fixed Displacement Pumps

Vane and piston pumps are available as fixed or variable displacement pumps. If the cam ring is fixed in position (vane pump), or the swashplate is fixed in position (piston pump), the displacement is fixed. Gear pumps, however, are available only with a fixed displacement. These pumps are less expensive, so they are widely used. …

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Hydraulic Positive Displacement Pump, Gear Pump

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Hydraulic Positive Displacement Pump, Gear Pump

The simplest and most robust positive displacement pump, having just two moving parts, is the gear pump. Its parts are non-reciprocating, move at constant speed and experience a uniform force. Internal construction, shown in Figure 2.7, consists of just two close meshing gear wheels which rotate as shown. The direction of rotation of the gears …

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