Pressure-balanced floating seal housing assembly and method
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United States of America Patent
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Apr 19, 2016
Grant Date -
Jun 2, 2011
app pub date -
Nov 30, 2010
filing date -
Nov 30, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A dynamic sealing mechanism for a machine assembly that includes a seal housing of generally cylindrical form having opposed ends, the seal housing axially positioned between a pressure housing and a retaining member and laterally translatable relative to the pressure housing. The dynamic sealing mechanism includes a shaft located at least partially within the seal housing, the shaft having a sealing surface of generally cylindrical form, relatively movable with respect to the seal housing, and having at least one radial bearing positioned radially by the shaft and locating the radial position of the seal housing. At least three fluid pressure-generated forces act axially on the seal housing to produce a net fluid pressure-generated axial force that is negligible.
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