Patent ID: 8047802

Claim:
A bladed turbomachine component comprising a leading edge and a blade height extending from a hub to a tip, wherein a course of the leading edge has a sweep angle [°] at the tip and at the hub, wherein an extension of sweep, given as a percent[%] of the blade height, defines a range where the sweep angle departs from 0°, wherein the course of the leading edge is determined by a respective axial coordinate in a direction of a machine axis relative to the blade height in percent and extends from a free side/tip of the turbomachine component, and is defined by a relation: axial ⁢ ⁢ coordinate ⁢ [ % ⁢ ⁢ blade ⁢ ⁢ height ] = 1 5 ⁢ ⁢ extension ⁢ [ % ⁢ ⁢ blade ⁢ ⁢ height ] ⁢ ⁢ tan ⁢ ⁢ sweep tip ( 1 - ⅇ - 5 ⁢ ( 100 ⁢ % - blade ⁢ ⁢ height ⁢ [ % ] ) extention ⁢ [ % ⁢ ⁢ blade ⁢ ⁢ height ] ) whereas the course of the leading edge extending from a hub/firm side of the turbomachine component is defined by a relation: axial ⁢ ⁢ coordinate ⁢ [ % ⁢ ⁢ blade ⁢ ⁢ height ] = 1 5 ⁢ ⁢ extension ⁢ [ % ⁢ ⁢ blade ⁢ ⁢ height ] ⁢ ⁢ tan ⁢ ⁢ sweep hub ( 1 - ⅇ - 5 ⁢ ⁢ blade ⁢ ⁢ height ⁢ [ % ] extention ⁢ [ % ⁢ ⁢ blade ⁢ ⁢ height ] ) .