Jam-Tolerant Rotary Control Motor for Hydraulic Actuator Valve
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Sep 25, 2017
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Mar 14, 2013
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Abstract
According to one embodiment, a linear control motor includes a first permanent magnet, a coil, a shaft, a first non-magnetic material, and a joint coupled between the shaft and a spool operable to convert rotations of the shaft into axial movements of the spool. The first non-magnetic material is disposed between at least one of the movable components and at least one of the static components and operable to prevent physical contact between at least one of the movable components and at least one of the static components.
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