Repair of industrial gas turbine nozzle diaphragm packing
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United States of America Patent
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Feb 28, 2012
Grant Date -
Nov 18, 2010
app pub date -
May 12, 2009
filing date -
May 12, 2009
priority date (Note) -
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Abstract
A technique for refurbishing nozzle diaphragm sections of a gas turbine replaces an eroded section of the nozzle diaphragm with a replacement part designed to engage a slot machined in the nozzle diaphragm. The replacement part is formed of a material with capable of sustained exposure to higher temperature than the original eroded section, and with a similar coefficient of expansion as the material used for manufacture the original nozzle diaphragm. The combination of the nozzle diaphragm and the replacement part conform to the original manufacturer's dimensional specifications for the nozzle diaphragm.
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