Patent ID: 7008182
Filing Date: 2006-03-07
Classification: F01D,F05D,F16C

Abstract:
1. A turbine casing, comprising a bearing casing for the bearing arrangement of a 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 comprising intermeshing centering means, wherein the centering means comprise grooves and either radially or axially unidirectional centering lugs for engaging in the grooves, and wherein there is a frictional connection between the casing which does not comprise the centering means, that is to say either the gas-inlet casing or the bearing casing, and the centering ring.