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FR-3168231-A1 - Optimized fan section of an aeronautical propulsion system

FR3168231A1FR 3168231 A1FR3168231 A1FR 3168231A1FR-3168231-A1

Abstract

A blower section comprising: - a casing, - a rotor comprising a blade (14) extending over a blade height (47) from a blade root (37) to a blade tip (21), the blade (14) having: an axial chord at the blade root, an axial chord at the blade tip, and a mean axial chord, an axial chord parameter corresponding to a ratio of the product of the mean axial chord by the axial chord at the blade root to the product of the blade height (47) by the axial chord at the blade tip, and a velocity parameter corresponding to the difference between the product of a peripheral velocity at the blade tip expressed in m/s and the value 3.263 x 10⁻³ s/m and the value 7.741 x 10⁻¹, the blade (14) being configured such that the axial chord parameter is greater than or equal to the velocity parameter. Figure for the summary: Fig. 5

Inventors

  • Didier, René, André ESCURE
  • GUILLAUME, OLIVIER, VARTAN MARTIN
  • Adrien Jean-Louis Tito MILTENBERGER

Assignees

  • SAFRAN AIRCRAFT ENGINES

Dates

Publication Date
20260508
Application Date
20241104