SUPERCHARGED INTERNAL COMBUSTION ENGINE WITH MIXED-FLOW TURBINE

摘要

The disclosure relates to a supercharged internal combustion with a mixed flow turbine. In one example, a system comprises a mixed-flow turbine having a turbine shaft coupled to a compressor, a plurality of guide vanes arranged in an inlet of the mixed-flow turbine, a plurality of bevel wheels each coupled to a respective guide vane via a respective guide vane shaft, a pinion wheel with a plurality of teeth to mesh with the plurality of bevel wheels, and a pinion drive coupled to one of the bevel wheels.

主权项

1. A supercharged internal combustion engine, comprising:
an intake system for the supply of charge air; an exhaust-gas discharge system for the discharge of the exhaust gas; and at least one mixed-flow turbine which is arranged in the exhaust-gas discharge system, the mixed-flow turbine comprising:
a turbine housing having an inlet region;at least one impeller arranged in the turbine housing and mounted on a rotatable turbine shaft;an adjustable guide device arranged in the inlet region upstream of the at least one impeller, the adjustable guide device comprising one or more guide vanes, each guide vane arranged on a guide vane-specific shaft;an adjustment device configured to rotate the one or more guide vanes, the adjustment device having a rotatable adjustment ring which is mounted coaxially with respect to the turbine shaft of the mixed-flow turbine, the rotatable adjustment ring having an external toothing; andone or more gearwheels each arranged on a respective guide vane-specific shaft, each gearwheel configured to mesh with the external toothing of the adjustment ring, such that the one or more guide vanes are adjusted by rotation of the adjustment ring.