초록 ▼

Described is a turbine blade with a metal blade body and a protective coating constructed of a porous intermetallic felt, and in the blade body of the turbine blade cooling air channels are constructed that end at the intermetallic felt in order to supply it with cooling air. The intermetallic felt

Described is a turbine blade with a metal blade body and a protective coating constructed of a porous intermetallic felt, and in the blade body of the turbine blade cooling air channels are constructed that end at the intermetallic felt in order to supply it with cooling air. The intermetallic felt is based on an iron or nickel aluminide alloy with mixing ratios of Fe:Al or Ni:Al of approximately 50:50, and that the protective coating has cooling channels that are facing the blade body and end in the area of the cooling channels. The design of the turbine blades permits their cooling with a smaller amount of cooling air, and, due to improved aerodynamics and a lower cooling air supply, the degree of effectiveness of the turbine is significantly increased.

대표청구항 ▼

[ What is claimed is:] [1.]1. A turbine blade, comprising:a metal blade body;a protective coating disposed on the blade body of the turbine blade, the protective coating constructed from a porous intermetallic felt;the blade body of the turbine blade including cooling air channels ending at the inte

[ What is claimed is:] [1.]1. A turbine blade, comprising:a metal blade body;a protective coating disposed on the blade body of the turbine blade, the protective coating constructed from a porous intermetallic felt;the blade body of the turbine blade including cooling air channels ending at the intermetallic felt in order to supply the intermetallic felt with cooling air, wherein the intermetallic felt is based on an iron or nickel aluminide alloy with mixing ratios of Fe:Al or Ni:Al of approximately 50:50, and that the protective coating has cooling channels that are facing the blade body.