Geared compressor rotor for cold gas applications
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United States of America Patent
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Nov 22, 2016
Grant Date -
Feb 16, 2012
app pub date -
Mar 26, 2010
filing date -
Apr 1, 2009
priority date (Note) -
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Abstract
A geared compressor rotor for cold gas applications is provided. The geared compressor rotor includes a pinion shaft having a gear tooth segment having gear teeth. The rotor further includes at least one impeller wheel having an impeller wheel hub and a sealing segment arranged between the gear tooth segment and the impeller wheel hub that bears a seal. The impeller wheel hub and the sealing segment form a common, continuously coherent region composed of a first material. The toothing segment is formed from a second material. The first material is tougher at subzero temperatures than the second material.
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