Patent ID: 8668438

Claim:
A turbine assembly comprising: a bladed turbine wheel; and a turbine casing, extending axially of the turbine assembly, radially outwardly surrounding tips of the blades of the turbine wheel, the turbine casing having at least one radially outwardly extending dummy flange off which, in an axial direction, one or more cooling manifolds, wrapping radially outwardly around the turbine casing, are mounted, the turbine casing having two mounting flanges positioned axially on each side surrounding the at least one dummy flange, each of the one or more cooling manifolds being adapted to receive cooling air and to discharge the cooling air radially inwardly towards the at least one dummy flange, for cooling the turbine casing, wherein the one or more cooling manifolds are bolted directly to the at least one dummy flange, the bolting being directly in line with a longitudinal direction of the at least one dummy flange.