Patent ID: 8439646

Claim:
A blade for a fluid flow machine, comprising: the blade being arranged in a main flow path of the fluid flow machine, a hub and a casing of the fluid flow machine forming a main flow path confinement confining the main flow path, the blade having a free end such that a gap is formed between the free end of the blade and the main flow path confinement, the blade having a skeleton line camber distribution having an excessive value of a relative skeleton line camber of α*≧0.35 for a related running length of s*=0.1 in at least one blade profile flow line section in an area between the gap and a blade section at a distance of 30 percent of the main flow path width W from the gap, where s* is a local running length relative to a total running length of the profile skeleton line and α* is an angular change of the skeleton line relative to the total camber of the skeleton line achieved from the leading edge to a related running length s*, with the skeleton line camber distribution commencing at a leading edge point V (s*=0, α*=0) and terminating at a trailing edge point H (s*=1, α*=1).