Abb Turbo Systems Ag

Adrian Kopp

Josef Bättig

Joel Schlienger

Tobias Gwehenberger

Marcel Meier

Marco Gartmann

In a turbocharger (), comprising a turbine () and a compressor () connected to the turbine (), the turbine () contains a turbine wheel () and the compressor () contains a compressor wheel () which are connected to one another by means of a shaft () and are arranged in a housing (). During operation, if the compressor wheel () separates from the shaft (), an axial force acts on the turbine wheel () and the shaft () connected thereto. A means () for axially locking the shaft and the turbine wheel connected thereto in the housing () is arranged on the shaft () connected to the turbine wheel ().

Turbocharger

The use of spring clamping clips between two adjacent guide vane shafts leads to a defined force on the bearing points of the guide vane in the guide bush. The seating force, resulting from the clamping force and the flow-related lift/drift forces, of the guide vane in the guide bush is therefore always positive and the guide vane rests constantly in the guide bush.

Spring clamping clip

The exhaust-gas turbine comprises a turbine wheel arranged on a shaft, a bearing casing for the bearing arrangement of the rotatable shaft, a gas-inlet casing supported on the bearing casing and concentrically surrounding the bearing casing in the supporting region, and a centering ring for centering the gas-inlet casing relative to the shaft mounted in the bearing casing. The centering ring and either the bearing casing or the gas-inlet casing comprise grooves and either radially or axially unidirectional centering lugs for engaging in the grooves. Due to the radially or axially unidirectional centering lugs with corresponding grooves, at least one of the connections between the bearing casing and the centering ring and the centering ring and the gas-inlet casing is not positive-locking, as a result of which any desired positioning of the gas-inlet casing relative to the bearing casing is made possible.

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Kirchdorf, Switzerland

Adrian Kopp