Variable turbines - / compressor geometry offers one popular possibility

摘要

The present invention relates to a variable turbines - / compressor geometry offers one popular possibility (5) for a loading device (1), with a vane bearing ring (8) on the guide vanes (6) in each case via an associated vane (7) are arranged so as to rotate. An improved reaction - or hysteresis behavior as well as a reduced wear result if a channel (17) of the inner side (11) at least one of the vane (7) to the exterior surface (9) of the associated guide blade (7) extends.Furthermore, the invention relates to a guide blade (6) with an associated vane (7) as well as a channel (17) which is derived from the inner side (11) to the exterior surface (9) extends.In addition, the invention relates to a charging device (1), in particular an exhaust gas turbocharger of an internal combustion engine, preferably of a motor vehicle, with such a variable turbines - / compressor geometry offers one popular possibility (5) or with such a guide blade (6) and an associated vane (7), the of the inner side (11) to the exterior surface (9) of a channel (17) is penetrated.