LIGHT WEIGHT SHROUD FIN FOR A ROTOR BLADE

摘要

The present invention refers to a turbine blade (1) comprising a fin (6) for a turbo machine, especially a turbine. The main object of the present invention to provide an improved lighter rotating blade (6) with reduced the overall blade mass, reducing the radial forces of the blades on the rotor, without compromising the strength or lifetime of the turbine blade (1). To realize a sufficiently strong light weight fin and thereby a light weight turbine blade (1), the fin (6) comprises a first sidewall (9) and a second sidewall (10), which are spaced apart, arranged parallel to each other, and which are connected to the shroud (5), and a cutting edge (18), which is connected to the first and second sidewall (9, 10), and is thereby creating a hollow space between the sidewalls (9, 10), the shroud (5), and the cutting edge (18). The cutting edge (18) is further extending radially away from the first and second sidewall (9, 10).