Sealing of variable guide vanes
AssigneeABB Turbo Systems AG
InventorsJoel Schlienger, Adrian Kopp
Life of this patent
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Abstract
The guiding device of a turbine has guide vanes which are rotatably mounted in the turbine housing. A sealing sleeve is arranged between the turbine housing and the guide vane stem. The additional axial compression spring ensures that the sealing sleeve is continuously pressed onto the guide vane mating contour, and that the axial gap and also the leakage flow are prevented as a result.
Claims18
A guiding device, comprising at least one guide vane with a guide vane stem which is rotatably mounted in a housing, and a sealing sleeve being arranged between the housing and the guide vane stem for bridging an axial gap.
A turbomachine with a guiding device, which comprises a guide vane with a guide vane stem which is rotatably mounted in a housing, and a sealing sleeve which is arranged between the housing and the guide vane stem for bridging an axial gap.
An exhaust gas turbocharger with a guiding device, which comprises at least one guide vane with a guide vane stem which is rotatably mounted in a housing, and a sealing sleeve which is arranged between the housing and the guide vane stem for bridging an axial gap.
Dependencies are inferred from the claim text.