Tags: Servo Valve

Hydraulic Servo Valve Port Shape

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Hydraulic Servo Valve Port Shape

Servo valve bodies are machined with three common port shapes as shown in Fig. 11.13. The effect of port shape on flow is shown in Fig. 11.14. A full annulus port gives the highest flow per unit of spool displacement or, correspondingly, per unit of current input to the torque motor. The valve flow characteristics …

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Hydraulic Servo Valve Feedback

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Feedback is an intuitive concept. Each time we reach for an object, we slow our hand as it approaches the object so that it is captured with minimal impact. There is visual feedback that our brain uses to control the arm and ensure that it reaches the target and stops. An equipment operator, for example …

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Servo Valve Electrical Circuit

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Servo Valve Electrical Circuit

Some explanation of the electrical circuit required for a servo valve is presented here to help readers understand how the servo valve in the servo pump operates when it is used in a closed-loop transmission.  The key features of the electrical circuit for a closed-circuit, closed-loop hydrostatic transmission are shown above the dotted line in …

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