Abstract: An exhaust-gas turbocharger (1) with a turbine housing (2) which has a turbine housing inlet (8) and a turbine housing outlet (9), and which has a wastegate duct (10) between the turbine housing inlet (8) and the turbine housing outlet (9), and a shut-off element (13) for opening and closing the wastegate duct (10). The shut-off element (13) comprises a sleeve (14), which is inserted into the turbine housing (2), and a piston (22), which is guided in the sleeve (14) so as to be movable along a longitudinal axis (L). The sleeve (14) has apertures (15, 16) at which the wastegate duct (5) opens out into the interior of the sleeve (14).

Abstract: An exhaust-gas turbocharger (1) with a turbine housing (2) which has a turbine housing inlet (8) and a turbine housing outlet (9) for exhaust gas, and which has a wastegate duct (19) between the turbine housing inlet (8) and the turbine housing outlet (9), and a flap arrangement (10) having a pivotable flap plate for opening and closing the wastegate duct (19), wherein the flap plate is in the form of an elastic spring disk (11).

Abstract: An exhaust-gas turbocharger (1) with a compressor wheel (2); with a turbine wheel (3); and with a shaft (4) on which the compressor wheel (2) and the turbine wheel (3) are arranged in a rotationally secured manner. The turbine wheel (3) has a through-opening (5) in which a first end region (6) of the shaft (4) is arranged, and the turbine wheel (3) is braced between an end-side stop (7) connected to the end region (6) and a compressor wheel-side shaft sleeve (8) fixed on the shaft (4).

Abstract: An exhaust-gas turbocharger (1) having a turbine housing (2), and having an exhaust manifold (3) connected to the turbine housing (2). At least one adapter ring (4, 5) is arranged between the turbine housing (2) and the exhaust manifold (3).

Abstract: An actuating force transmitting device (10) of an exhaust-gas turbocharger (1), having: a regulating rod (12) which can be displaced by an actuator (11); a guide piece (15) arranged on a free end region (14) of the regulating rod (12); and a lever (16) which is fastened to a guide piece pin (19) of the guide piece (15). There is radial play (SR) between a lever bore (50) and the guide piece pin (19) which extends through the lever bore (50), and there is axial play (SA) between the guide piece (15) and the lever (16). A clamping spring (20; 20?; 20?) preloads the lever (16) relative to the guide piece pin (19).

Abstract: An exhaust-gas turbocharger (1) with a turbine housing (2) which has a turbine housing inlet (8) and a turbine housing outlet (9), and which has a wastegate duct (10) between the turbine housing inlet (8) and the turbine housing outlet (9), and a shut-off element (13) for opening and closing the wastegate duct (10). The shut-off element (13) comprises a sleeve (14), which is inserted into the turbine housing (2), and a piston (22), which is guided in the sleeve (14) so as to be movable along a longitudinal axis (L), The sleeve (14) has apertures (15, 16) at which the wastegate duct (5) opens out into the interior of the sleeve (14).

Abstract: An exhaust-gas turbocharger (1) with a turbine housing (2) which has a turbine housing inlet (8) and a turbine housing outlet (9) for exhaust gas, and which has a wastegate duct (19) between the turbine housing inlet (8) and the turbine housing outlet (9), and a flap arrangement (10) having a pivotable flap plate for opening and closing the wastegate duct (19), wherein the flap plate is in the form of an elastic spring disk (11).

Abstract: An exhaust-gas turbocharger (1) with a compressor wheel (2); with a turbine wheel (3); and with a shaft (4) on which the compressor wheel (2) and the turbine wheel (3) are arranged in a rotationally secured manner. The turbine wheel (3) has a through-opening (5) in which a first end region (6) of the shaft (4) is arranged, and the turbine wheel (3) is braced between an end-side stop (7) connected to the end region (6) and a compressor wheel-side shaft sleeve (8) fixed on the shaft (4).

Abstract: An actuating force transmitting device (10) of an exhaust-gas turbocharger (1), having: a regulating rod (12) which can be displaced by an actuator (11); a guide piece (15) arranged on a free end region (14) of the regulating rod (12); and a lever (16) which is fastened to a guide piece pin (19) of the guide piece (15). There is radial play (SR) between a lever bore (50) and the guide piece pin (19) which extends through the lever bore (50), and there is axial play (SA) between the guide piece (15) and the lever (16). A clamping spring (20; 20?; 20?) preloads the lever (16) relative to the guide piece pin (19).

Abstract: An exhaust-gas turbocharger (1) having a turbine housing (2), and having an exhaust manifold (3) connected to the turbine housing (2). At least one adapter ring (4, 5) is arranged between the turbine housing (2) and the exhaust manifold (3).

Abstract: A control box for use, for example, to open and close a bypass valve (18, 19) of a turbocharger, in which the closing movement occurs with higher force than the opening movement, wherein the closing movement occurs in the direction of a spring force and the opening movement in the direction against said spring force. The control box comprises two pressure chambers (4, 6) and both pressure chambers may be set to either atmospheric pressure or negative pressure.

Abstract: A control box for use, for example, to open and close a bypass valve (18, 19) of a turbocharger, in which the closing movement occurs with higher force than the opening movement, wherein the closing movement occurs in the direction of a spring force and the opening movement in the direction against said spring force. The control box comprises two pressure chambers (4, 6) and both pressure chambers may be set to either atmospheric pressure or negative pressure.