Rotor and bearing system for a turbomachine
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United States of America Patent
Stats
-
Sep 26, 2006
Grant Date -
Apr 28, 2005
app pub date -
Jun 4, 2004
filing date -
Oct 28, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A rotor and bearing system for a turbomachine. The turbomachine includes a drive shaft, an impeller positioned on the drive shaft, and a turbine positioned on the drive shaft proximate to the impeller. The bearing system comprises one gas journal bearing supporting the drive shaft between the impeller and the turbine. The area between the impeller and the turbine is an area of increased heat along the drive shaft in comparison to other locations along the drive shaft. The section of the drive shaft positioned between impeller and the turbine is also a section of the drive shaft that experiences increased stressed and load in the turbomachine. The inventive bearing machine system positions only one radial bearing in this area of increased stress and load.
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