DEVICE AND METHOD FOR AXIALLY DISPLACING A TURBINE ROTOR

摘要

The invention concerns a device for axially displacing at least one turbine rotor (13, 15, 17) relative to at least one corresponding turbine stator (12, 14, 16) in a multistage axial turbine (25). The turbine shaft (2) is provided with a split design and has a first axially displaceable shaft half (23), which is connected via a turbine disc (9) to the turbine rotor (13, 15, 17) and via a torque coupling (6) to the second shaft half (22). By axially displacing the turbine rotor relative to the turbine stator and by controlling this axial displacement, the operation of the turbine is held in its possible optimum of efficiency.