Device for varying turbine inlet geometry of charging device, particularly exhaust gas turbocharger for internal combustion engine, particularly of vehicle, has multiple guide blades that are distributed circumferentially

摘要

The device has multiple guide blades (3) that are distributed circumferentially with reference to a rotation axis (4) of a turbine wheel (5). A bearing washer (11) is arranged in two parts in radial direction with respect to rotation axis and has an inner ring (13) and an outer ring (14). The rings have a radially opening axial continuous recess (15) for shaft mount (12), in which a shaft (7) is radially inserted. Independent claims are also included for the following: (1) a paddle wheel bearing for rotatable support of guide blades of a varying turbine inlet or compressor geometry of charging device, particularly exhaust gas turbocharger of a vehicle; and (2) a charging device, particularly exhaust gas turbocharger for an internal combustion engine, particular of a vehicle.