Tag Archives for Hydraulic

Hydraulic Radial Piston Pump

The principle of operation of the radial piston pump is shown in Fig. 4.16. In this case, the cylinders are positioned radially around the axis of rotation. As the shaft rotates, the connecting rods push the pistons back and forth … Continue reading

26. December 2009 by JackSparow
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Hydraulic Axial Piston Pump

The axial piston pump has a series of cylinders (typically 7 or 9) mounted parallel to the axis of rotation. (The arrangement is similar to shell chambers in a revolver.) Pistons are installed in the cylinders. Each piston has a … Continue reading

26. December 2009 by JackSparow
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Hydraulic Vane Pump

A vane pump (Fig. 4.7) has a series of vanes that slide back and forth in slots. There are springs in these slots that push the vanes out until the tip contacts the cam ring. (Some designs port pressurized fluid … Continue reading

25. December 2009 by JackSparow
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Hydraulic Fixed Displacement Pump Circuits

A simple circuit with fixed displacement pump is shown in Fig. 4.3. Circuits with fixed displacement pumps are called constant-flow circuits. The key concept is stated below. Each revolution of a fixed displacement pump delivers a certain volume of fluid … Continue reading

25. December 2009 by JackSparow
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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 … Continue reading

14. December 2009 by JackSparow
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