Single flow turbopump with integrated boosting
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United States of America Patent
Stats
-
Aug 3, 1993
Grant Date -
N/A
app pub date -
Dec 27, 1991
filing date -
Dec 31, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Inside a single casing the turbopump comprises a main shaft driven by a turbine, a secondary shaft coaxial with the main shaft, a low pressure impeller mounted on the secondary shaft to create a medium pressure flow which is brought back to flow parallel to the axis of the turbopump by a baffle and which is deflected through 180.degree. in a return channel so as to come back parallel to the axis of the turbopump towards a high pressure impeller mounted on the main shaft inside the secondary shaft. The entire HP flow formed by the HP impeller is output via the insides of curved hollow blades forming a portion of the LP impeller, this HP centrifugal flow thus establishes a driving torque for the LP impeller.
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