Patent Number: 7,131,814

Title: Cooling arrangement

Abstract: 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 ).

Inventors: Nagler; Christoph (Zurich, CH), Schwind; Andre (Crottendorf, DE), Walz; Ralf (Heiligenzell, DE)

Assignee: Alstom Technology Ltd.

International Classification: F01D 11/00 (20060101)

Expiration Date: 2019-11-07 0:00:00