Rotor for an axial flow turbomachine
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United States of America Patent
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Jun 11, 2013
Grant Date -
Dec 29, 2011
app pub date -
Aug 8, 2008
filing date -
Aug 10, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A rotor for an axial flow turbomachine is provided. The rotor includes a plurality of rotor discs that are arranged in stacks and clamped together with at least one tie rod. At least one of the rotor discs of the rotor comprises a smaller outer diameter than one of the neighboring rotor discs and that the difference in diameter is compensated by a drum surrounding the rotor disc with the smaller outer diameter as a ring. The drum may be made of a heat resistant material. The rotor discs surrounded by the drum may be made of a less expensive material. Furthermore, the drum may include at least one more blade ring than the rotor discs that are surrounded by the drum.
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