Tags: Servo Valve Spool

Jet Pipe Hydraulic Servo Valve Spool

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Jet Pipe Hydraulic Servo Valve Spool

The jet pipe design (Fig. 11.12) is less sensitive to contamination than the flapper nozzle. This design uses fluidics technology. A nozzle, attached to the armature, directs a stream of fluid (pressure Ps) at two receivers. When the nozzle is centered (no current through the armature coils to cause it to turn), the two receivers …

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Double Flapper Nozzle Shifting Servo Valve Spool

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Double Flapper Nozzle Shifting Servo Valve Spool

A diagram of the double flapper nozzle is shown in Fig. 11.10. Supply pressure (the setting of the relief valve or the setting of a pressure compensated pump) is supplied to the points identified with Ps (Fig. 11.10). Fluid flows across the fixed orifices and enters the center manifold. Orifices are formed on each side …

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