Patent ID: 11859534
Assignee: SAFRAN AIRCRAFT ENGINES
Field: Transport (Mechanical engineering)
Classification: CPC F  B  Y | IPC B  F

Claim 2:
3. The profiled air flow structure according to claim 1, further comprising:
a chord in which:
along the upstream leading edge or the downstream trailing edge, the serrated profile line has a distance between two consecutive tooth tips,
along the chord, the serrated profile line has a maximum amplitude, “h”, and
the porous acoustically absorbent region has:
along the upstream leading edge and/or the downstream trailing edge, two limits separated by a distance “a” such that a is equal to one third of said distance between two consecutive tooth tips, to within 30%,
along the chord, two limits separated by a distance “b” such that b=h/3, within 30%.