SELF-CENTERING SERVO PISTON
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United States of America Patent
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Issued Date -
Jan 21, 2016
app pub date -
Jul 17, 2014
filing date -
Jul 17, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A servo piston having an elongated member with a first end and a second end. The second end has a servo piston head disposed within a servo piston bore. The servo piston head has at least two grooves disposed about an outer edge of the servo piston head. At last one sealing ring is received within each groove. The use of rings in at least two grooves reduces side/transversal vibration and the servo bore load. At the same time, the space between the two grooves creates a pressurized oil squeeze film between the servo piston head and servo piston bore, sealed by the rings, which provides both a sealing and damping function at the same time.
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