Cast gas turbine blade through which coolant flows, together with appliance and method for manufacturing a distribution space of the gas turbine blade

摘要

A cast gas turbine blade through which coolant flows, includes a blade root inserted into a disk of the gas turbine; a plurality of supply ducts; and a distribution space. Coolant is fed to the supply ducts through. a feed duct of the disk, the feed duct communicating with the supply duct via the distribution space. Flow and manufacture are optimized by a cast distribution space being present which has rounded or beveled inlet openings for the supply ducts and which is manufactured by means of a one-piece casting core.