Platelike projecting component portion of a gas turbine

Abstract

A platelike projecting component portion (1) of a gas turbine or the like, with a surface (2) upon which hot gas acts and with cooling bores (12) through which a cooling medium is capable of flowing. Effective cooling is achieved in that at least one plenum (10; 30; 50) assigned solely to the component portion (1) is provided, which is arranged so as to be directly adjacent to the surface (2) upon which hot gas acts and through which the cooling medium is capable of flowing convectively, and in that, to form a cooling film, the cooling bores are designed as blow-out orifices (12; 52) which emanate from the plenum (10; 30, 50) and which issue on the surface (2) upon which hot gas acts.

Dependencies are inferred from the claim text.