F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 5/14 (2006.01) F01D 5/28 (2006.01)
Patent
CA 2593267
A turbine blade for turbo-engines as well as a method for manufacturing such a turbine blade is disclosed. According to the task set, the turbine blades should be capable of withstanding high thermal stress and able to maintain an adequate mechanical strength even at raised operating temperatures. The turbine blades are so designed that on the surface of a core element a heat- insulating layer of a metallic open-cell foam is integrally connected to said core element by sintering. The outer contour of the turbine blade is formed with at least one shell element. The shell element comprises a nickel-base alloy, which is also integrally connected by sintering to the open-cell foam which forms the heat-insulating layer.
L'invention concerne une aube de turbine pour turbomoteurs et un procédé de fabrication associé. L'invention vise à réaliser une aube de turbine capable de résister à un stress thermique élevé et de conserver une résistance mécanique adéquate, même à températures de fonctionnement accrues. Cette aube de turbine est conçue de telle sorte que sur la surface d'un élément central, une couche d'isolation thermique de mousse métallique à alvéoles ouvertes est solidaire de l'élément central par frittage. Le contour externe de l'aube de turbine est formé d'au moins un élément de recouvrement contenant un alliage à base de nickel, lequel est rendu solidaire par frittage à la mousse à alvéoles ouvertes formant la couche d'isolation thermique.
Boehm Alexander
Buettner Tilo
Naumann Dirk
Schuetze Michael
Walther Gunnar
Cvrd Inco Limited
Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung
Smart & Biggar
Vale International S.a.
LandOfFree
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