Axially balancing a turbine using low temperature exhaust
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United States of America Patent
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Nov 8, 2016
Grant Date -
Jan 23, 2014
app pub date -
Mar 7, 2013
filing date -
Jul 20, 2012
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Abstract
A single-flow turbine using CO2 as a working fluid. The turbine includes a balance piston portion configured to optimize an axial load of a rotor on a bearing with a fluid having a temperature lower than a temperature of the working fluid introduced into the turbine, wherein a flow path in which at least a part of the fluid passing through the balance piston portion is extracted from a middle part of the passing, and in which at least a part of the extracted fluid is urged to flow to a middle part of a passage where the working fluid passes and where rotor blades at a plurality of stages are provided, is formed at the turbine.
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