Category Archives for Actuators

Rephasing of Hydraulic Cylinders

When cylinders are connected in series, it is necessary to provide a feature for rephasing these cylinders when they are fully retracted. Otherwise, leakage will cause the downstream cylinder to not fully extend. An example of the need for rephasing … Continue reading

05. May 2010 by JackSparow
Categories: Actuators | Tags: , | 1 comment

Hydraulic Cylinder Cushioning

When cylinders reach the end of their stroke, the pressure rises quickly, creating a shock wave in the hydraulic circuit. Cushioning is done to reduce this stock. The concept, shown in Fig. 7.6, is quite simple. First, we consider the … Continue reading

05. May 2010 by JackSparow
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Basic Concept of Hydraulic Cylinder

Suppose a flow of fluid is delivered to a hydraulic cylinder, causing it to extend. The cylinder has a cross-sectional area A and delivers a force F while moving a distance x (Fig. 1.2). The distance moved is related to … Continue reading

18. December 2009 by JackSparow
Categories: Actuators | Tags: , | Leave a comment

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