Turbocharger, has guide vanes pivotable around axis for providing variable turbine geometries, and carrier ring with circular flange for radially overlapping front side of turbine wheel for forming gap

摘要

The turbocharger has a turbine housing (4) with a radial gap (6) having a turbine wheel (3), and guide vanes (12) provided within the radial gap for supplying exhaust gas and fuel gas to the wheel. The guide vanes are arranged at a carrier ring (8) that forms a radial wall of the radial gap, where the guide vanes are pivotable around an axis (13) for providing variable turbine geometries. The axis runs parallel to a turbine wheel axis, and the carrier ring has a circular flange (17) radially overlapping a front side of the turbine wheel for forming a gap.