EXHAUST GAS TURBOCHARGER FOR AN INTERNAL COMBUSTION ENGINE

摘要

The invention relates to an exhaust gas turbocharger for an internal combustion engine (100) having a housing (2A) comprising an exhaust gas guide segment (3), an air guide segment (28), and a bearing segment (29), having a rotor assembly (2B) comprising a turbine wheel (5) having a plurality of blades (10), a compressor wheel (30), and a shaft (31) rotationally fixing the turbine wheel (5) to the compressor wheel (30), wherein the turbine wheel (5) is rotationally supported in the exhaust gas guide segment (3) and the compressor wheel (30) is rotationally supported in the air guide segment (28), and the shaft (31) is rotationally supported in the bearing segment (29), wherein the turbine wheel (5) can be acted on by exhaust gas from the internal combustion engine (100) and the compressor wheel (30) can be driven by means of the shaft (31) from the turbine wheel (5) for taking in and compressing air, and a sleeve-shaped sliding element (14) is positioned in the exhaust gas guide segment (3) for conditioning the exhaust gas acting on the turbine wheel (5). According to the invention, the sleeve-shaped sliding element (14) is designed for at most partially receiving an outer blade contour (12) of the turbine wheel (5). The simple variability in the outer wheel contour - wheel exit area, together with the conventional adjusting devices upstream of the turbine wheel, allows a fully variable turbine. The optimal reaction level can thereby be set for operating points of the turbine at lesser and greater injectivity. The invention is used both in commercial vehicle design and in passenger car design.