Servovalve apparatus for use in fluid systems

Details Servovalve apparatus for use in fluid systems Servovalve apparatus for use in fluid systems

1990-01-31

1991-04-09

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

Jet control type

91 3, G05D 1620

Patent

active

050056000

ABSTRACT:
A servovalve apparatus for use in fluid systems which comprises a flexible fluid conduit and a conductive coil which surrounds at least a portion of the conduit adjacent its upstream end. An armature is secured to the flexible conduit so as to be adjacent the conductive coil. Two permanent magnets, preferably formed of a rare earth metal material, are provided adjacent the armature on opposite sides thereof, the magnets being positioned such that one magnet presents a north magnetic pole facing the armature and the other magnet presents a south magnetic pole facing the armature. A receiving plate is provided adjacent the downstream end of the flexible conduit, the receiving plate having one or more channels formed therein for receiving fluid from the conduit. Preferably, the channels in the receiving plate originate within and communicate with a concave socket in the receiving plate which has substantially the same radius of curvature as the path over which the downstream end of the flexible conduit moves during flexure.

REFERENCES:
patent: 2990839 (1961-07-01), Ray
patent: 3011505 (1961-01-01), Reip
patent: 3081787 (1963-03-01), Menlendyk

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