Damper disposition mounted between rotor vanes
AssigneeSociete Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
InventorJean Marc Surdi
Life of this patent
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Abstract
Damper disposition (8) mounted between two neighboring vanes (5) and which ncludes free inners (22) in housings (21) delimited by a radially external wall (16) slanted outwardly in the direction of the respective vane (5). The centrifugal forces produced by rotation of the disk of the rotor (4) move the inners (22) outside the housings (21) and forcibly apply them to the vanes (5) so as to dampen the vibrations, especially when considerable friction is produced against the outer wall (16). Application for turbo-engines and especially for the large vanes of input blowers.
Claims3
Damper disposition mounted between two neighbouring vanes attached to a rotor disk and including a receptacle integral with the disk and fitted with housings opening towards the lateral faces of the vanes, and inners disposed in the housings, wherein the housings are delimited radially outwardly by portions of the receptacle on which the inners slide under the effect of centrifugal forces and which are slanted radially outwardly in the direction of the vanes where the housings open.
Dependencies are inferred from the claim text.