US 11,982,198 B2
Annular component for supporting a turbine engine bearing
Albert Josse, Moissy-Cramayel (FR); Lois Pierre Denis Vive, Moissy-Cramayel (FR); Jean-Maurice Casaux-Bic, Moissy-Cramayel (FR); and Yvan Ludovic Lameignere, Moissy-Cramayel (FR)
Assigned to SAFRAN HELICOPTER ENGINES, Bordes (FR)
Appl. No. 17/596,343
Filed by SAFRAN HELICOPTER ENGINES, Bordes (FR)
PCT Filed Jun. 4, 2020, PCT No. PCT/FR2020/050953
§ 371(c)(1), (2) Date Dec. 8, 2021,
PCT Pub. No. WO2020/249887, PCT Pub. Date Dec. 17, 2020.
Claims priority of application No. 1906249 (FR), filed on Jun. 12, 2019.
Prior Publication US 2022/0220865 A1, Jul. 14, 2022
Int. Cl. F01D 25/16 (2006.01); F01D 25/28 (2006.01)
CPC F01D 25/162 (2013.01) [F01D 25/28 (2013.01); F05D 2220/323 (2013.01); F05D 2240/50 (2013.01); F05D 2250/141 (2013.01); F05D 2250/184 (2013.01); F05D 2250/291 (2013.01); F05D 2250/61 (2013.01); F05D 2260/30 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An annular component of supporting at least one bearing, for a turbine engine, comprising:
two coaxial annular walls, internal and external respectively, these walls delimiting between them an annular gas flow vein and being connected together by an annular row of arms;
an external annular shell extending around the external annular wall, the external annular shell comprising an internal peripheral edge connected to the external annular wall and an external peripheral edge connected to an external flange;
an internal annular shell extending inside the internal annular wall, the internal annular shell comprising an external peripheral edge connected to the internal annular wall and an internal peripheral edge comprising an internal flange,
wherein at least one of the internal or external annular shells has its external or internal peripheral edge which is connected, respectively, to the internal or external annular wall around an axis of the annular component, and
wherein a corrugated shape of the external peripheral edge which is connected to the internal annular wall, has an amplitude similar to a total length of arms measured along the axis of the annular component; or a corrugated shape of the internal peripheral edge which is connected to the external annular wall, has an amplitude between 15% and 20% of a total length of arms measured along the axis of the annular component.