Abstract: A turbocharger, has a turbine for expanding a first medium and a compressor for compressing a second medium. The turbine includes a turbine housing and a turbine rotor. The compressor includes a compressor housing and a compressor rotor coupled to the turbine rotor via a shaft. A bearing housing is arranged between the compressor and turbine housings in which the shaft is mounted. The turbine and bearing housings are connected via a fastening device mounted on a flange of the turbine housing with a first section and a second section that covers a flange of the bearing housing at least in sections. The fastening device is contoured curved on a surface of the second section facing the flange of the bearing housing.

Abstract: A turbocharger turbine rotor includes a rotor basic body, and moving blades configured without an outer shroud. The moving blades, forming a defined curvature region, merge into the rotor basic body with a defined, constant or variable curvature radius rf. On a first group of first moving blades, the following relationship applies to the curvature radius of the curvature region of the first moving blades: 2.5%?rf1*100/l?10%, wherein rf1 is the constant or variable curvature radius of the curvature region of the first moving blades and l the length of the first moving blades on a flow trailing edge. On a second group of second moving blades, the curvature radius rf2 of the curvature region of the second moving blades deviates from the curvature radius rf1 of the curvature region of the first moving blades on the damping side in a defined manner.

Abstract: A turbocharger includes a turbine and a compressor, each of which includes a rotor and a stator. At least one of the respective rotors and/or stators includes at least one interior flow passage at least partly or completely surrounded by a wall that provides cooling. The respective rotor and/or stator having the at least one flow passage is at least partly produced by additive manufacturing.

Abstract: A turbocharger having a housing and a stator. The housing and/or the stator has an inner and an outer housing component. An inner section of the housing component lies directly against and covers a lateral section of the housing component. The lateral section and the inner section are formed such that they form a positive-locking connection, which fixes the inner housing component and the outer housing component against positional change along a longitudinal axis of the turbocharger and/or against a rotation about this longitudinal axis. The inner housing component and/or the outer housing component is at least partly produced by additive manufacturing.

Abstract: A turbocharger, includes a turbine for expanding a first medium, the turbine has a turbine housing and a turbine rotor, a compressor for compressing a second medium, having a compressor housing and a compressor rotor that is coupled to the turbine rotor via a shaft. The turbine housing and the compressor housing are each connected to a bearing housing arranged between them, in which the shaft is mounted. In a connecting region between an inflow housing of the turbine housing and the bearing housing a sealing cover is arranged. On a radially inner section of the sealing cover a projection extending in the axial direction is formed, which engages into a groove introduced into the bearing housing forming a radially inner fit and a radially outer fit.

Abstract: A turbocharger with a turbine for expanding a first medium and a compressor for compressing a second medium utilizing energy extracted in the turbine during the expansion of the first medium. The turbine comprises a turbine housing and a turbine rotor. The turbine housing is connected to a bearing housing. An inflow housing of the turbine housing is formed in a double-walled manner, namely of an inner flow-conducting core and an outer force-conducting shell.

Abstract: A turbocharger, includes a turbine for expanding a first medium, a compressor for compressing a second medium utilising energy extracted in the turbine during the expansion of the first medium. The turbine housing and a compressor housing are each connected to a bearing housing arranged between the same. The turbine housing, and/or the compressor housing and/or the bearing housing form/s a stator-side assembly and/or receive/s a stator-side assembly, which serves for the lubrication, and/or heat conduction, and/or sealing. The respective stator-side assembly which serves for the lubrication, and/or heat conduction, and/or sealing, is produced by a generative manufacturing method.

Abstract: A turbocharger has a turbine for expanding a first medium and a compressor for compressing a second medium utilizing energy extracted in the turbine. The turbine includes a housing with a turbine inflow housing and a turbine rotor. The compressor has a compressor housing and a compressor rotor coupled to the turbine rotor via a shaft. The turbine inflow housing is constructed in a spiral-like, one-piece and double-walled manner such that between an outer wall of the turbine inflow housing and an inner wall of the turbine inflow housing a water duct for conducting cooling water is formed. The inner wall delimiting the water duct on a side of the inner wall facing away from the water duct is directly followed by a guide duct of the first medium to be expanded.

Abstract: A turbocharger, includes a turbine for expanding a first medium, the turbine has a turbine housing and a turbine rotor, a compressor for compressing a second medium, having a compressor housing and a compressor rotor that is coupled to the turbine rotor via a shaft. The turbine housing and the compressor housing are each connected to a bearing housing arranged between them, in which the shaft is mounted. In a connecting region between an inflow housing of the turbine housing and the bearing housing a sealing cover is arranged. On a radially inner section of the sealing cover a projection extending in the axial direction is formed, which engages into a groove introduced into the bearing housing forming a radially inner fit and a radially outer fit.

Abstract: A turbocharger has a turbine for expanding a first medium and a compressor for compressing a second medium utilizing energy extracted in the turbine. The turbine includes a housing with a turbine inflow housing and a turbine rotor. The compressor has a compressor housing and a compressor rotor coupled to the turbine rotor via a shaft. The turbine inflow housing is constructed in a spiral-like, one-piece and double-walled manner such that between an outer wall of the turbine inflow housing and an inner wall of the turbine inflow housing a water duct for conducting cooling water is formed. The inner wall delimiting the water duct on a side of the inner wall facing away from the water duct is directly followed by a guide duct of the first medium to be expanded.

Abstract: A turbocharger with a turbine for expanding a first medium and a compressor for compressing a second medium utilising energy extracted in the turbine during the expansion of the first medium. The turbine comprises a turbine housing and a turbine rotor. The the turbine housing is connected to a bearing housing. An inflow housing of the turbine housing is formed in a double-walled manner, namely of an inner flow-conducting core and an outer force-conducting shell.

Abstract: A turbocharger, has a turbine for expanding a first medium and a compressor for compressing a second medium. The turbine includes a turbine housing and a turbine rotor. The compressor includes a compressor housing and a compressor rotor coupled to the turbine rotor via a shaft. A bearing housing is arranged between the compressor and turbine housings in which the shaft is mounted. The turbine and bearing housings are connected via a fastening device mounted on a flange of the turbine housing with a first section and a second section that covers a flange of the bearing housing at least in sections. The fastening device is contoured curved on a surface of the second section facing the flange of the bearing housing.