Ansaldo Energia Switzerland Ag

Ansaldo Energia IP UK Limited

Oliver Joseph Taheny

Carlos Simon-Delgado

Thomas Zierer

Giovanni Cataldi

Sven Olmes

Armin Busekros

Christophe Simonet

Luca Alberti

Robert Przybyl

Meisam Sistaninia

Eugenio Rossi

Daniel Jemora

Isaac Gomez- Lor- Lopez

Uwe Wolfgang Ruedel

Phillipe Lott

Hyazinth Immanuel Hennel

A method is disclosed for cooling a gas turbine having a turbine, wherein a rotor, which rotates about a machine axis, carries a plurality of rotating blades, which are mounted by blade roots and extend with their airfoils into a hot gas path of the gas turbine. The rotor is concentrically surrounded by a turbine vane carrier carrying a plurality of stationary vanes, whereby the rotating blades and the stationary vanes are arranged in alternating rows in axial direction. An extended lifetime with external cooling is achieved by providing first and second cooling systems for the turbine.

Method for cooling a gas turbine and gas turbine for conducting said method

A vane carrier is provided for a compressor or a turbine section of an axial turbo machine, especially one of a gas turbine, steam turbine, compressor, expander, comprises least a first and second functional means. The first functional means is a cylinder made of a material with a coefficient of thermal expansion (CTE) below 1.3&#xd7;10[1/K]. The cylinder is provided for carrying a plurality of vanes on its inner side. The second functional means is a support structure made of a material different to and less expensive than the material of said first functional means. The support structure is provided for defining an axial and lateral position of the first functional means within an outer casing of the axial turbo machine.

Vane carrier for a compressor or a turbine section of an axial turbo machine

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Zurich, Switzerland

Oliver Joseph Taheny