Patent ID: 8215909

Claim:
A turbine blade, comprising: a leading edge; a cooling passage extending along a length of the leading edge; and a plurality of ribs arranged one after the other in the cooling passage, wherein two adjacent ribs form a rib-pair, wherein each individual rib of the rib-pair is arranged transversely to each other by a predetermined first angle and, as seen in along an extent of the cooling passage, in an offset manner from each other whereby their respective ends do not touch, wherein the rib-pair is formed as a guiding element for a core flow of a cooling medium flowing in the cooling passage so that the plurality of ribs guide the core flow from a first rib of the rib-pair essentially transversely to a second rib of the rib-pair, and wherein each individual rib extends from a front wall to a rear wall, each wall forming a border of the cooling passage, and wherein the plurality of ribs project into the cooling passage.