Abstract: An exhaust-gas turbocharger (1) with a housing (2), a shaft (3) mounted in the housing (2), a compressor wheel (5) arranged on the shaft (3) and a turbine wheel (4) arranged on the shaft (3), a control element (7), an actuator (8), and a regulating rod (9) which connects the actuator (8) to the control element (7), including an electromagnetic damping arrangement (10) having a magnetic-field-generating element (14), and a first coil (15) with a closed electrical circuit (17), with either the magnetic-field-generating element (14) or the first coil (15) being fastened on the regulating rod (9).

Abstract: A method for balancing an exhaust-gas turbocharger rotor (14), comprising the steps of arranging a shoulder (12; 16; 20) rotationally conjointly on a shaft (10) of the rotor (14) and of removing at least a part of the material of the shoulder (12; 16; 20) in order to reduce the imbalance, and an exhaust-gas turbocharger rotor (14) having a shaft (10) on which a bearing arrangement (13) can be mounted, having a turbine wheel (6) on a first end (10a) of the shaft (10), and having a compressor wheel (2) on a second end (10b) of the shaft (10). A shoulder (12; 16; 20) is arranged on the shaft (10) between the compressor wheel (2) and the turbine wheel (6), which shoulder is connected rotationally conjointly to the shaft (10).

Abstract: A method for connecting a compressor wheel (2) to a shaft (3) of a supercharging device (1), having the following method steps: providing a compressor wheel (2), having a shaft-receiving recess (5) which has an inner diameter (DI); providing a (3), having a compressor-side shaft end (6) with an outer diameter (DA) which is at least equal to and preferably greater than the inner diameter (DI) of the shaft-receiving recess (5); and connecting the compressor wheel (2) to the compressor-side shaft end (6) by means of a cold-welding process (15) at the contact surfaces (8, 9) thereof.

Abstract: An exhaust-gas turbocharger (1) with a housing (2), a shaft (3) mounted in the housing (2), a compressor wheel (5) arranged on the shaft (3) and a turbine wheel (4) arranged on the shaft (3), a control element (7), an actuator (8), and a regulating rod (9) which connects the actuator (8) to the control element (7), including an electromagnetic damping arrangement (10) having a magnetic-field-generating element (14), and a first coil (15) with a closed electrical circuit (17), with either the magnetic-field-generating element (14) or the first coil (15) being fastened on the regulating rod (9).

Abstract: The present invention refers to a turbocharger-catalytic converter assembly comprising a turbine casing of the turbocharger which includes a turbine casing flange; a catalyst flange as part of the catalytic converter; and a connecting means which fixes the turbine casing flange and the catalyst flange to each other with interposition of a seal, wherein an insulation layer of a thermally resistant elastic material is arranged between the connecting means and the turbine casing flange and the catalyst flange.