| 摘要 |
A cooling arrangement ( 17 ) for supplying a first cavity ( 9 ) with a cooling gas, in particular in a gas turbine of a power plant, includes a cooling-gas passage ( 19 ) which is formed in a first component ( 6 ) and connects the first cavity ( 9 ) to a second cavity ( 10 ). A second component ( 16 ) bears against a bearing side ( 15 ) remote from the second cavity ( 10 ) and separates the first cavity ( 9 ) from a third cavity ( 12 ). The second component ( 16 ) is displaceable within a range of displacement. To improve the cooling effect, an orifice region ( 20 ) of the cooling-gas passage ( 19 ) is dimensioned and/or positioned in such a way that its orifice cross section ( 21 ) projects from the range of displacement to such an extent that it is open at least with a predetermined minimum cross section in any position of the second component ( 16 ).
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