Apparatus and method for changing the dynamic response of an electromagnetically operated actuator
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United States of America Patent
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Aug 17, 2004
Grant Date -
N/A
app pub date -
Oct 1, 1999
filing date -
Oct 1, 1999
priority date (Note) -
Expired
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Abstract
An apparatus for use in components such as servo-valves, regulators and injectors for stabilizing system oscillations. The apparatus includes an armature having at least one groove formed on an exterior surface thereof; a sleeve, the armature being movably disposed in the sleeve; and a spring member disposed in the at least one groove in the armature and in sliding contact with the sleeve wherein the spring member exerts a radially outwardly directed spring force against the sleeve. A method of stabilizing an electromagnetically operated actuator comprises providing an armature having at least one groove formed on an exterior surface thereof; providing a sleeve wherein the armature is movably disposed in the sleeve; and disposing a spring member in the at least one groove in the armature and in sliding contact with the sleeve whereby the spring member exerts a radially outwardly directed spring force against the sleeve.
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