MULTIPHASE SCREW PUMP
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United States of America Patent
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N/A
Issued Date -
Apr 16, 2009
app pub date -
Oct 11, 2007
filing date -
Oct 11, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A twin screw pump includes a pair of rotors disposed inside a casing having an inlet and an outlet. Each rotor includes a set of threads disposed on a portion of an outer surface of a shaft. A first bearing is coupled at a first end of the shaft and a second bearing is coupled at a second end of the shaft. The first and second bearings are not separated by one or more seals. The first and second bearings are configured for being lubricated by the liquid medium of the process fluid when the twin screw pump is in an operational mode.
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