Lead-lag damper
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United States of America Patent
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Jul 19, 2022
Grant Date -
Feb 10, 2022
app pub date -
Jan 29, 2020
filing date -
Jan 29, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
Technologies are generally described for lead-lag dampers. An example lead-lag may include a single- or two-stage floating annular ring, elastomer bearings, a tension stop, a compression stop, and a plunger/spring volume compensator. The floating annular ring(s) form orifice(s) in conjunction with the remaining damper components may provide stable performance by tracking with any center shaft misalignment during operation. The lead-lag damper may also include a secondary spring system allowing or disallowing fluid flow between chambers based on slow or sudden movement of the shaft.
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