Abb Turbo Systems Ag

Detlef Behrendt

Josef Bättig

Jozef Baets

Michael Jung

Martin Seiler

Marco Di-Pietro

Peter Schellenberg

Klaus Heinrich

Ferdinand Mueller

Marc Andrea Camastral

Markus Städeli

The guide-vane system serves to change the position of the guide vanes of an axial-flow exhaust-gas turbine of a turbocharger. The guide vanes are arranged axially symmetrically to the turbine axis in a flow passage carrying exhaust gas and can be pivoted by a pivoting device in each case about a radially directed axis. A vane shank led radially outward from the flow passage through a casing wall is attached to each of the guide vanes. With its part directed outward, the vane shank is mounted so as to be rotatable about the pivot axis. The pivoting device contains an adjusting ring, arranged outside the flow passage and rotatable about the turbine axis, and also an adjusting lever which transmits a torque from the adjusting ring to the vane shank of each guide vane. The adjusting ring is mounted with its outside on rolling elements which are each designed as one-armed levers and are mounted so as to be pivotable on a component of a casing wall, this component being designed as a supporting ring. This guide-vane system is characterized by high reliability even under heavy operating conditions.

Distributor for an exhaust gas turbine with an axial flow

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Rheinheim, Germany

Detlef Behrendt