Variable turbine geometry for use with turbine wheel of charging device i.e. exhaust gas turbocharger, of internal combustion engine, has guide vanes attached to periphery of turbine wheel, where guide vanes are designed as bend guide vanes

摘要

The geometry (34) has guide vanes attached to a periphery (16) of a turbine wheel (10), where the guide vanes are held at an axis of rotation (30) and are adjustable by a common actuator. The guide vanes are designed as bend guide vanes, where the bend guide vanes comprise a low pressure area at its inner side and an upper pressure area at its outer side. The bend guide vanes are fastened in the area of its vane ends at the axis of rotation in a torque proof manner. The bend guide vanes are designed in an eccentricity related to a symmetrical axis of the rotation axis.