Impingment cooling of a part of a turbine blade wall

摘要

The invention relates to an impact flow for wall sections (3) characterized by a plurality of impact openings (2) which are arranged on a plane in a flat or curved support (1). The support is fitted at a distance from the wall section, and the impact surface of the wall section (3) that is to be cooled is configured as a bulged relief. The bulge elements (4) are arranged around the impact surface of the impact beam. Their surface facing the impact beam consists substantially of two blending curves (K1, K2).