Turbomachine flow-straightener blade
AssigneeSociete Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
InventorAlain P. M. Daguet
Life of this patent
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Abstract
The fixed blades of a flow-straightener in a turbomachine each includes a metallic structure having a smooth surface on one side defining one face of the blade and a grid having a plurality of cells on its opposite side which are filled with a composite material such as polyurethane, the filled cellular side of the metallic structure defining an opposite face of the blade.
Claims9
A flow-straightener blade for a turbomachine, comprising a metallic structure having opposite first and second sides, said metallic structure having a smooth surface on said first side defining one face of said blade and said second side forming a cellular network formed of a plurality of adjoining cells which includes a plurality of ribs extending from a tip portion to a root portion of the blade and from leading edge to a trailing edge of said blade, and a composite material which fills said cells, the filled second side of said metallic structure defining the other face of said blade.
A turbomachine flow straightener comprising:
- an inner ring,
- an outer casing, and
- a plurality of fixed blades disposed between said inner ring and said outer casing and distributed evenly therearound, each of said blades comprising a metallic structure having opposite first and second sides, said metallic structure having a smooth surface on said first side defining one face of said blade and said second side forming a cellular network formed of a plurality of cells having a plurality of adjoining ribs extending from a tip portion to a root portion of the blade and from a leading edge to a trailing edge of said blade and a composite material which fills said cells, the filled second side of said metallic structure defining the other face of said blade.
Dependencies are inferred from the claim text.