ADJUSTABLE GUIDING APPARATUS FOR A TURBINE, TURBINE FOR A TURBOCHARGER, AND TURBOCHARGER

摘要

The invention relates to an adjustable guiding apparatus for a turbine, comprising a race (2) with a plurality of guide vanes (3), the guide vanes (3) being rotatably mounted on the race (2) by means of guide vane shafts (5), in which an adjusting lever (6) is associated with the guide vane shaft (5) for positioning the guide vane (3), said adjusting lever being designed such that it can engage in a rotatable rotating ring (7) of the adjustable guiding apparatus (1), and the adjustable guiding apparatus (1) comprises a supporting ring (9) for mounting in an exhaust gas guiding section of the turbine, the supporting ring (9) supporting the rotating ring (7). According to the invention, the rotating ring (7) is radially and/or axially guided by means of at least one guiding element (14), the guiding element (14) being received on the supporting ring (9). The invention futher relates to a turbine with an adjustable guiding apparatus and a turbocharger.