TURBOMACHINE BLADE MADE OF COMPOSITE MATERIAL

TURBOMACHINE BLADE MADE OF COMPOSITE MATERIAL

A turbomachine blade 1 made of a fibre-reinforced composite material comprises an aerodynamic portion 2 and a fixing root portion 3, the latter being formed by at least two distinct arms 6 which branch and spread without discontinuity from the aerodynamic portion and which are each formed into a loo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: GERARD LAUZEILLE
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
WEAPONS
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Beschreibung
Zusammenfassung:A turbomachine blade 1 made of a fibre-reinforced composite material comprises an aerodynamic portion 2 and a fixing root portion 3, the latter being formed by at least two distinct arms 6 which branch and spread without discontinuity from the aerodynamic portion and which are each formed into a loop 7 which completely surrounds a separation core 11. A third separation core 11 separates the two loops. An outer shell 12, which may be metallic, surrounds the root portion; the space between root and cover is filled with elastomeric material 13. This construction is intended to increase the resistance to centrifugal stresses of the blade, and enables such blades to be used in large diameter rotors.