Invention Grant
US08021120B2 Turbine blade with a cover plate and a protective layer applied to the cover plate 有权
具有盖板和保护层的涡轮叶片施加到盖板上

Turbine blade with a cover plate and a protective layer applied to the cover plate
Abstract:
The invention relates to a turbine blade with a cover plate shaped onto the pan of the blade. The aim of the invention is to provide a turbine blade of this type that, while having a high level of efficiency, is designed for a particularly reliable and safe operation in a turbine, particularly of a steam turbine. To this end, the invention provides that a protective layer made on an alternative material is applied to the surface of the cover plate facing away from the pan of the blade. The friction behavior with regard to a turbine component, particularly a sealing strip, which is opposite the protective layer, can be specifically influenced whereby enabling favorable emergency running properties to be provided in the event of rubbing.
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