TURBINE BLADE COMPRISING LAYER OF COMPOSITE MATERIAL

Japanese Patent JP2615328

B2

PURPOSE: To provide a lightweight turbine blade having excellent mechanical strength against centrifugal force and impact by covering a central core with a plurality of layers of composite material and arranging a network of trans verse seams passing through at least the layers of composite material.
CONSTITUTION: A turbine blade includes a central core 1, a plurality of layers 3 of woven material attached to the outside of the central core 1, and a sleeve 4 of woven composite material covering all the layers 3. The woven composite material of the layer 3 is made of fibers pre-impregnated with resin. The fibers may be organic fibers, ceramic fibers or metal fibers. The combination between basic structures including the central core 1, layer 3 and sleeve 4 is effected by seams 5. In this way, it is possible to obtain a lightweight blade having excellent mechanical strength even when subject to high temperature.

Joel Michel Daniel Benoit
Bruno Jacques Gierrard Dambrine
Loran Jiyan Pierre David
Patrick Houssier
Daniel Giorgiyu Guillo
Christoph Therael Legi Grobois
Catherine Laurence Francoise Guille

JP32341092A

May 28, 1997

December 02, 1992

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Societe Nacional Deuteyudo e Do Contriyucón Do Motor Davuación, "S.N.U.U.Se.M. Ah."

B29C70/54; B29D99/00; B32B7/08; B64C3/20; D03D25/00; F01D5/28; F01D9/02; (IPC1-7): F01D5/28; B32B7/08; D03D25/00; F01D9/02

JP635101A
JP4308251A
JP475329B1
JP125699B2

Yoshio Kawaguchi (2 outside)

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