Pitot pump with fluid lubricated bearings
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United States of America Patent
Stats
-
Jul 21, 1981
Grant Date -
N/A
app pub date -
Oct 1, 1979
filing date -
Oct 1, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hollow casing defining a fluid chamber is rotated relative to a stationary pitot tube mounted within the casing. The pitot tube is supported by a stationary hollow discharge tube whose bore defines the fluid outlet passage for the pump. An annular fluid inlet passage is provided surrounding one end of the discharge tube. Cylindrical portions on the discharge tube provide hardened bearing surfaces for cooperation with hardened sleeve bearings carried by the axially opposed end walls of the rotating casing. Radial flanges on such hardened bearing members provide thrust bearing capability if required. The bearings are exposed to the fluid being pumped and lubricated by such fluid.
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