| 摘要 |
The invention relates to a part (14) of a casing (11), especially a casing (11) of a gas turbine (1), a steam turbine or a compressor, which is of one piece of material. Further it refers to a turbine comprising a part of the above type. In order o enhance efficiency without increasing production costs, the invention proposes that the part (14) comprises a cavity (15), which extends along a circumference of a rotational axis (2) of the gas turbine (1), steam turbine or the compressor, which cavity (15) comprises a radially outer wall (17) and a radially inner wall (18), an inlet opening (19) for supplying a cooling medium (20) into the cavity (15), an outlet opening (21) for discharging the cooling medium (20) from the cavity (15), which radially inner wall (18) is provided with means to support at least vanes (10) or rotor seals (13) facing rotor blades (7) or a carrier for these vanes (10) or seals (13).
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