Turbomachine shaft and journal bearing assembly

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United States of America Patent

PATENT NO 10125818
APP PUB NO 20170370409A1
SERIAL NO

15535401

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A turbomachine comprising a turbomachine shaft for rotation about an axis and for supporting a turbine wheel at one end of the turbomachine shaft; and a bearing housing having a wall defining a bore in which the turbomachine shaft is received with a substantially annular clearance, the turbomachine shaft being supported for rotation in the bore by at least one journal bearing located within the annular clearance. A surface of the turbomachine shaft which radially underlies the or each journal bearing has a surface roughness (Ra) of less than 0.15 microns and the or each journal bearing comprises a bronze alloy incorporating bismuth in an amount of up to around 6 wt %.

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Patent Owner(s)

  • CUMMINS LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burkinshaw, Michael West Yorkshire, GB 1 2
Hall, Jason Maxim North Yorkshire, GB 1 2
Lancaster, Craig Yorkshire, GB 2 2

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