Importance

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Abstract

A turbomachine has a shaft extending along and rotatable about an axis and having an outer surface, a first impeller wheel permanently mounted on the shaft and having a respective back face, a second impeller wheel detachably mounted on the shaft axially offset from the first impeller wheel and having a respective back faces axially confront the back face of the first impeller wheel, and respective first and second axial bearings each having a respective rotor bearing half fixed to the respective impeller wheel and a respective nonrotatable stator bearing half axially juxtaposed with the respective rotor bearing half. The rotor shaft is of increasingly smaller cross-sectional size from the first wheel to the second wheel.

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First Claim