Patent ID: 11879398
Assignee: SAFRAN AIRCRAFT ENGINES
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 12:
13. A shaft for a propulsion system comprising:
a first end, configured to engage an input pinion of a speed reduction mechanism;
a first gusset and a second gusset, the first gusset and the second gusset being symmetrical in revolution about an axis of rotation of the input pinion, the first gusset extending between the first end and the second gusset; and
a frustoconical barrel, a first downstream fillet being immediately adjacent the first gusset and frustoconical barrel and a second upstream fillet being immediately adjacent the second gusset and frustoconical barrel, such that a lowermost inner diameter of the first downstream fillet between the first gusset and the frustoconical barrel is different from a lowermost inner diameter of the second upstream fillet between the second gusset and the frustoconical barrel.