Alstom Technology Limited

Ansaldo Energia IP UK Limited

Ansaldo Energia Switzerland Ag

Philipp Indlekofer

Herbert Brandl

Hans-Peter Bossmann

Igor Tsypkaykin

Igor Tsypkakyin

A rotor blade arrangement (), especially for a gas turbine, which can be fastened on a blade carrier () and includes in each case a blade aerofoil element () and a platform element (), wherein the platform elements () of a blade row form a continuous inner shroud. With such a blade arrangement, a mechanical decoupling, which extends the service life, is achieved by the blade aerofoil element () and the platform element () being formed as separate elements and by being able to be fastened in each case separately on the blade carrier ().

Rotor blade arrangement and gas turbine

A turbine blade is provided and includes a tip end carrying a shroud and at least one fin, which extends radially away from the shroud. The fin includes a first sidewall and a second sidewall, which are spaced apart, arranged parallel to each other, and are connected to the shroud, and a cutting edge, which is connected to the first and second sidewalls. The cutting edge thereby creates a hollow space between the sidewalls, the shroud, and the cutting edge, and further extends radially away from the first and second sidewalls. Also provided is a method of manufacturing the blade by casting the blade as single piece with the hollow fin or by forging the blade; and machining the fin to create the first and second sidewalls and cutting edge thereby opening the hollow space between said sidewalls and the cutting edge.

Light weight shroud fin for a rotor blade

Growing community of inventors

Klettgau-Erzingen, Germany

Philipp Indlekofer