Compressor rotor, compressor, and gas turbine
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United States of America Patent
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Jun 2, 2020
Grant Date -
Feb 22, 2018
app pub date -
Apr 18, 2016
filing date -
Apr 27, 2015
priority date (Note) -
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Abstract
A rotor shaft has: an inlet flow passage through which gas inside a gas compression flow passage flows into an outer cavity of a downstream-side cavity group; a radial flow passage that provides communication between the outer cavity and an axial communication cavity of the downstream-side cavity group; an axial flow passage that provides communication between the axial communication cavity of the downstream-side cavity group and the axial communication cavity of an upstream-side cavity group; another radial flow passage that provides communication between the axial communication cavity and the outer cavity of the upstream-side cavity group; and an outlet flow passage through which the gas inside the outer cavity of the upstream-side cavity group flows out into the gas compression flow passage.
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