Search

FR-3168233-A1 - Optimized fan section of an aeronautical propulsion system

FR3168233A1FR 3168233 A1FR3168233 A1FR 3168233A1FR-3168233-A1

Abstract

Fan section in which: The ratio of the product of the average axial chord of the blade by the axial chord at the blade root to the product of the square of the blade height (47) by the axial chord at the blade tip (21) is less than the difference between the product of the maximum speed by 2.047 x 10⁻³ s/rad and 1.3403 x 10⁻¹, and the stiffness of a lower portion (55) of the blade is greater than the stiffness of an upper portion (57), and/or The ratio of the axial chord at the blade root to the product of the square of the average axial chord by the blade height and the axial chord at the blade tip is less than the difference between the product of the maximum speed by 2.757 x 10⁻¹ s/rad and 67.4, and the stiffness of an upstream portion of the blade is greater than the steepness of the downstream portion. Figure for the abbreviation: Fig. 6

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