Monthly Archives for July 2019

Hydraulic Radial Piston Pumps

Figure 4-11 illustrates the operation of the radial piston pump. The pump consists of a pintle, which remains stationary and acts as a valve; a cylinder block, which revolves around the pintle and contains the cylinders in which the pistons … Continue reading

24. July 2019 by Jack
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Hydraulic Combination Pumps

Many hydraulic applications are similar to Figure 2.16, where a workpiece is held in place by a hydraulic ram. There are essentially two distinct requirements for this operation. As the cylinder extends or retracts a large volume of fluid is … Continue reading

23. July 2019 by Jack
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Hydraulic Axial Piston Pumps

In axial piston pumps of the in-line type, where the cylinders and the drive shaft are parallel (fig. 4-13), the reciprocating motion is created by a cam plate, also known as a wobble plate, tilting plate, or swash plate. This … Continue reading

20. July 2019 by Jack
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Rack and Pinion Rotary Actuator

referred to as limited rotation cylinders, of the single or multiple, bidirectional piston are used for turning, positioning, steering, opening and closing, swinging, or any other mechanical function involving restricted rotation. Figure 10-10 shows a typical rack-and-pinion double piston actuator. … Continue reading

14. July 2019 by Jack
Categories: Hydraulic Actuators | Tags: , | Leave a comment