Embodiments of the present application include a gas turbine system (10). The system (10) may include a rotor wheel (32) and one or more impeller vanes (40) radially disposed on the rotor wheel (32). The system (10) may also include one or more fluid passa...

The device (1) has air conduit tubes (14) for guiding air from an outer annular space radially toward a rotor shaft, and a support ring (12) for arranging the air conduit tubes in a radially closed intermediate space between two adjacent rotor disks. The s...