| 摘要 |
PROBLEM TO BE SOLVED: To provide a revolving shaft for connecting the compressor of a gas turbine and a turbine directly, which solves the problem that a considerable heat drop is exhibited in an axial direction from one end of a turbine side to the other end of a compressor side during a drive after the warming-up of the gas turbine, and under such situation, the clearance between the bearing sleeve of a bearing for supporting the intermediate part of the revolving shaft and the revolving shaft has to be homogenized as much as possible over the full operation range to start from the cold start time of the gas turbine.SOLUTION: A bearing sleeve is supported through a plurality of radial ribs by a cylindrical housing, and an annular space between the two is partitioned by a plurality of radial ribs thereby to form a plurality of air passages. The radial ribs are reduced in thickness from one end of a compressor side to the other end of a turbine side.SELECTED DRAWING: Figure 2 |
