Abstract: The invention relates to a bearing unit for a turbocharger rotor. The bearing unit comprises a bearing housing and a bearing bush which is arranged in a central bore for radially mounting a turbocharger rotor in the bearing housing. In the region of a first axial end, the bearing bush has a radially outwardly extending projection. The projection is designed to interact with the bearing housing as an anti-rotation safeguard for the bearing bush.

Abstract: An exhaust-gas turbocharger (1) with a bearing housing (2), a shaft (5) mounted in the bearing housing (2), a turbine wheel (6) which is arranged on the shaft (5), a compressor wheel (7) which is arranged on the shaft (5), and a wheel side space (10) between a rear wall (8) of the turbine wheel (6) or compressor wheel (7) and an outer surface (11), which faces toward the rear wall (8) of the bearing housing (2). In the outer surface (11) of the bearing housing (5), there is formed at least one groove (13, 18) for disrupting the flow generated by the rotating rear wall (8).

Abstract: The invention relates to a bearing unit for a turbocharger rotor. The bearing unit comprises a bearing housing and a bearing bush which is arranged in a central bore for radially mounting a turbocharger rotor in the bearing housing. In the region of a first axial end, the bearing bush has a radially outwardly extending projection. The projection is designed to interact with the bearing housing as an anti-rotation safeguard for the bearing bush.

Abstract: An exhaust-gas turbocharger (1) having a compressor housing (2) in which a compressor wheel (2?) is arranged; a bearing housing (3); and a turbine housing (4) in which a turbine wheel (4?) is arranged. The axial abutment surfaces (5, 6) are provided between the bearing housing (3) and the turbine housing (4). The axial abutment surfaces (5, 6) have at least one notch (9).

Abstract: An overrun air recirculation valve 1 of an exhaust-gas turbocharger compressor 2, having a valve housing 3 which has an interior 4, having a diaphragm 5 which is guided in the interior 4 and which has an edge-side sealing means 6; and having a connecting means 7 provided on the valve housing 3, wherein the sealing means 6 is in the form of a sealing means which acts in the radial direction R of the diaphragm 5.

Abstract: An exhaust-gas turbocharger (1) having a turbine housing (2), having a compressor housing (3), having a bearing housing (4), which has a bearing housing axis (L), and having a connecting device (5), for connecting the bearing housing (4) to the compressor housing (3) and/or the turbine housing (2). The connecting device has a plurality of connecting elements (6) which each have a connecting element end face (7). The number of bores (8) in the compressor housing (3) corresponds to the number of connecting elements (6). The bores (8) and the connecting elements (6) inserted into the bores (8) are arranged at an acute angle (?) with respect to the bearing housing axis (L), and the connecting element end faces (7) rest on an associated bearing surface (9) of the bearing housing (4) and/or turbine housing (2).

Abstract: An exhaust-gas turbocharger (1) having a turbine (2); a compressor (3); and a bearing housing (4) which is arranged between the turbine (2) and the compressor (3) and a compressor-side flange (5) of which adjoins the compressor (3). A heat throttle (6, 6?) is arranged in the compressor-side flange (5) of the bearing housing (4).

Abstract: The invention relates to a bearing housing body assembly (1) of an exhaust-gas turbocharger, having a housing (2) for a bearing arrangement (8, 9) of a rotor shaft (3); having a turbine wheel (4) on one end (5) of the rotor shaft (3); and having a compressor wheel (6) on the opposite end (7) of the rotor shaft (3), wherein an oil reservoir (10, 11) is formed in the housing (2) adjacent to the bearing arrangement (8, 9).

Abstract: An exhaust-gas turbocharger (1) having a compressor (2) which has a compressor wheel (3) in a compressor housing (4); a turbine (5) which has a turbine wheel (6) in a turbine housing (7); and a bearing housing (8) which holds a stationary bearing bush (9) for a rotor shaft (10) and which has, at the compressor side, a bearing housing cover (11). The bearing bush (9) is provided with axial bearing surfaces (12, 13) and is fixed in the bearing housing (8) in a non-positively locking fashion.

Abstract: An exhaust-gas turbocharger (1) having a compressor housing (2) in which a compressor wheel (2?) is arranged; a bearing housing (3); and a turbine housing (4) in which a turbine wheel (4?) is arranged. The axial abutment surfaces (5, 6) are provided between the bearing housing (3) and the turbine housing (4). The axial abutment surfaces (5, 6) have at least one notch (9).

Abstract: An exhaust-gas turbocharger (1) with a bearing housing (2), a shaft (5) mounted in the bearing housing (2), a turbine wheel (6) which is arranged on the shaft (5), a compressor wheel (7) which is arranged on the shaft (5), and a wheel side space (10) between a rear wall (8) of the turbine wheel (6) or compressor wheel (7) and an outer surface (11), which faces toward the rear wall (8) of the bearing housing (2). In the outer surface (11) of the bearing housing (5), there is formed at least one groove (13, 18) for disrupting the flow generated by the rotating rear wall (8).

Abstract: An overrun air recirculation valve 1 of an exhaust-gas turbocharger compressor 2, having a valve housing 3 which has an interior 4, having a diaphragm 5 which is guided in the interior 4 and which has an edge-side sealing means 6; and having a connecting means 7 provided on the valve housing 3, wherein the sealing means 6 is in the form of a sealing means which acts in the radial direction R of the diaphragm 5.

Abstract: The invention relates to an exhaust manifold (18) of an interna! combustion engine (20), with a number of exhaust pipe bends (1) corresponding to the number of cylinders of the internal combustion engine (20), said exhaust pipe bends being brought together at one end into an input flange (2 ) which can be fastened to the internal combustion engine (20), and being brought together at the other end; with a supply gas duct (21) which is connected at one end to a collector component (4) and at the other end to a rotor space (15) of a turbine housing (17) of a turbine of an exhaust-gas turbocharger; and with at least one compensator (19?) for compensating for thermal stresses in at least one exhaust pipe bend (1) and the supply gas duct (21), wherein the at least one compensator (19?) is designed as a component which is integrated in at least one exhaust pipe component (1).

Abstract: The invention relates to an exhaust-gas turbocharger (1) having a compressor housing (3), having a bearing housing (28) which can be connected at one end to the compressor housing (3) by means of a first fastening device (19), and having a turbine housing (2) which can be connected to the bearing housing (28) at the other end of the latter by means of a second fastening device (20), with the compressor housing (3), the bearing housing (28) and the turbine housing (2) extending along an exhaust-gas turbocharger longitudinal axis (R), wherein the second fastening device (20) is designed as a plug-and-twist connecting device, and a seal (25) is provided between the turbine housing (2) and the bearing housing (28).

Abstract: An exhaust gas turbocharger (1) having a turbine housing (2), having a compressor housing (3), having a bearing housing (4), has a bearing housing axis (L), and having a connecting device (5), for connecting the bearing housing (4) to the compressor housing (3) and/or the turbine housing (2). The connecting device has a plurality connecting elements (6) each have a connecting element end face (7). The number of bores (8) in the compressor housing (3) corresponds to the number of connecting elements (6). The bores and the connecting elements (6) inserted into the bores (8) are arranged at an acute angle (?) with respect to the bearing housing axis (L), and the connecting element end faces (7) rest on an associated bearing surface (9) of the bearing housing (4) and/or turbine housing (2).

Abstract: A bearing housing (1) of an exhaust-gas turbocharger, having a compressor-side housing flange (2), a central housing section (3) which is integrally connected to the housing flange (2) and in which is arranged a first partial section (4) of an oil chamber (5) which has an oil inlet (20) and an oil outlet (21), and a turbine-side housing section (6) which has a turbine-side housing flange (7) and in which is arranged a second partial section (8) of the oil chamber (5). The central and turbine-side housing sections (3, 6) are provided with an oil cooling duct (13; 13?).

Abstract: An exhaust-gas turbocharger (1) having a turbine (2); having a compressor (3); and a bearing housing (4) which is arranged between the turbine (2) and the compressor (3) and a compressor-side flange (5) of which adjoins the compressor (3). A heat throttle (6, 6?) is arranged in the compressor-side flange (5) of the bearing housing (4).

Abstract: An exhaust-gas turbocharger (1) having a compressor (2) which has a compressor wheel (3) in a compressor housing (4); a turbine (5) which has a turbine wheel (6) in a turbine housing (7); and a bearing housing (8) which holds a stationary bearing bush (9) for a rotor shaft (10) and which has, at the compressor side, a bearing housing cover (11). The bearing bush (9) is provided with axial bearing surfaces (12, 13) and is fixed in the bearing housing (8) in a non-positively locking fashion.

Abstract: A bearing housing (1) of an exhaust-gas turbocharger, having a compressor-side housing flange (2), a central housing section (3) which is integrally connected to the housing flange (2) and in which is arranged a first partial section (4) of an oil chamber (5) which has an oil inlet (20) and an oil outlet (21), and a turbine-side housing section (6) which has a turbine-side housing flange (7) and in which is arranged a second partial section (8) of the oil chamber (5). The central and turbine-side housing sections (3, 6) are provided with an oil cooling duct (13; 13?).

Abstract: The invention relates to a turbocharger (1) having a turbine (2); and having a compressor (3) connected to the turbine (2) by means of a bearing housing (4), the compressor comprising a compressor housing (5), which has a reference surface (BF) perpendicular to a turbocharger axis (AL), and a valve flange (6) equipped with a valve seat (11) for a wastegate valve and a connecting channel (9) to a compressor inlet (7), wherein the valve flange (6) has a flange surface (8) that is disposed at a calculable angle (?) to the reference surface (BF) in a tilted manner, and wherein the connecting channel (9) has a channel axis (AK), which is disposed at a calculable angle (?) in a tilted manner.