Back to results
US 4,285,634 AGranted
Composite ceramic gas turbine blade
AssigneeMotoren- und Turbinen-Union Munchen GmbH
InventorsAxel Rossman, Wilhelm Hoffmuller, Wolfgang Kruger
Life of this patent
Estimating the term…
Abstract
A gas turbine blade constituted of a supportive metallic blade core and a thin-walled ceramic blade airfoil, in which the airfoil is supported against a tip plate of the blade core. The blade core consists of rod or wire-shaped pins which have widened bases at their radially inner ends. Through these widened bases, the pins are retained in a metallic adapter slidable into a turbine disc.
Claims8
In a gas turbine blade having a plurality of supporting metallic blade cores extending therethrough;
- a ceramic airfoil enveloping the cores at a spacing therefrom;
- a tip plate formed of ceramic material having a circumference in conformance with the airfoil, said airfoil engaging in a recess in said tip plate, each blade core having a widened head for restraining the tip plate, each core being a wire-shaped blade core including a root at the radially inward end thereof;
- and a generally cylindrical metallic adaptor adapted to be inserted and locked in a turbine disc for commonly supporting the blade by each core root.
Dependencies are inferred from the claim text.