Alstom Technology Limited

Iouri Strelkov

Alexander Anatolievich Khanin

Remigi Tschuor

Sergey Vorontsov

Heinz Neuhoff

A vane arrangement () of a turbo machine (), in particular of a gas turbine, includes at least one vane carrier () attached to a housing () of a turbo machine (), and several vanes () attached to the vane carrier () and circumferentially arranged side by side, wherein the attachment between the vane carrier () and respective vane () is adapted for being axially pluggable. In order to simplify dismounting of a single vane () at least one of the vanes () is provided with an extraction device () having at least one axially extending extraction through-hole (). The respective extraction through hole () is provided with an inner thread (), and the vane carrier () is provided with an abutment zone () axially opposing the extraction through hole (). The extraction device () is adapted for inducing axially oriented extraction forces into the respective vane () by an extraction tool, which is provided with an outer thread and which is in order to extract the respective vane () from the vane carrier () inserted into the extraction through-hole () and axially pressing against the abutment zone ().

Vane arrangement of a turbo machine

An arrangement is disclosed for the admission of cooling air to the internal walls of a component rotating about a rotation axis, such as a moving blade in a rotary machine. A component root can be fastened to a rotor unit in a rotationally fixed manner and adjoining in a radially extending manner is a one piece component airfoil in which at least one radially extending cooling passage region (K) is provided which, in the region of the component root, opens out via an opening into a cooling-air supply passage passing at least partly through the component root longitudinally relative to the rotation axis. A distribution plate forms a fluid-tight connection with an opening margin, surrounding the opening of the cooling passage region (K), at least during the rotation of the component about the rotation axis. The distribution plate provides at least one through-opening in the region of the opening of the at least one cooling passage region (K), through which through-opening cooling air passes from the axial cooling-air supply passage into the radial cooling passage region (K).

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Moscow, Russia

Iouri Strelkov