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US 5,395,213 AGranted
Turbojet engine rotor
AssigneeSociete Nationale d'Etude et de Construction de Motors d'Aviation "S.N.E.C.M.A."
InventorJacques M. P. Stenneler
Life of this patent
Estimating the term…
Abstract
A turbojet engine rotor, wherein the circumference of the disk is occupied y teeth and slots in an alternating form. The teeth have a variable rigidity in the axial direction, which leads to different shapes of their cross-section. The teeth have a twisted outer surface and oblique recesses are provided on the circumference of the rotor for receiving vane roots which alternate with the teeth for separating and retaining the vanes.
Claims1
A turbojet engine rotor, which comprises:
- a disk having a plurality of recesses separated by teeth formed from radially outer widened portions and a neck joining the widened portions to a rim of the disk on which all the teeth are located, and
- a plurality of vanes which have a blade and a root respectively located in the recesses, wherein for each tooth the widened portions are formed by two adjacent portions, each located on one side of the neck, wherein one widened portion is higher and the adjacent widened portion is of less height in a direction along recesses of the rotor, the adjacent portions being of less height towards acute angle ends of the teeth, and wherein the recesses and teeth are oblique and the teeth have a twisted outer face.
Dependencies are inferred from the claim text.