Alstom Technology Limited

Ansaldo Energia Switzerland Ag

Joergen Ferber

Alexander Stankowski

Piero-Daniele Grasso

Gordon David Anderson

James Ritchie

Sven Olliges

Sophie Duval

Grasso Piero-Daniele

An abradable coating system (-) for a turbine or a compressor is proposed has at least one layer of woven or non-woven tissue () or foam made of: ceramic, glass, glass-ceramic, ceramic-metal composite and combinations thereof. A free-standing preformed element () has at least one layer of such a woven or non-woven tissue or foam is filled with fillers and/or binder. A method prepares such a system. Finally, a method for the repair of an abradable coating portion of a turbine or the compressor component () includes in a first optional step that the damaged portion is at least partly removed and/or cleaned and/or surface treated, and in a second step at least one free-standing preformed abradable coating element () or a complete abradable coating system is attached to the component (), preferably by using a matrix, wherein for example only a center part () or a fraction of a center part () is replaced.

Abradable coating system

A turbomachine (), in particular a turbine or compressor, includes a rotor () which has at least one moving blade row () with a plurality of moving blades (), and a stator () which has at least one guide vane row () with a plurality of guide vanes (), at least in one of the blade or vane rows () all the blades or vanes () each having a shroud plate (). In order to simplify the maintenance of the turbo-machine (), the shroud plates () are separate components with respect to the respective blade or vane () and are mounted on the respective blade or vane (), shroud plates () adjacent in the circumferential direction () being coupled to one another for the transmission of tensile forces in the circumferential direction ().

Turbomachine

Device for separating dirt and debris in flowing media

Growing community of inventors

Wutoeschingen, Germany

Joergen Ferber