Patent ID: 9488051
Filing Date: 2016-11-08
CPC Classification: F01D,F02C,F05D

Claim Text:
1. A single-flow turbine using CO 2 as a working fluid, comprising: a balance piston portion configured to control an axial load of a rotor on a bearing with a cooling fluid having a temperature lower than a temperature of the working fluid introduced into the turbine, the cooling fluid being generated by passing a fluid through a heat exchanger and a cooler, wherein a flow path in which at least a part of the cooling fluid passing through the balance piston portion is extracted from a middle part of the balance piston portion, and in which at least a part of the extracted cooling 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.