US 11,781,442 B2
Turbine having an internal secondary space equipped with fins for correcting gyration of an airflow
Julian Nicolas Girardeau, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 17/760,340
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Feb. 15, 2021, PCT No. PCT/FR2021/050263
§ 371(c)(1), (2) Date Aug. 8, 2022,
PCT Pub. No. WO2021/165605, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 2001576 (FR), filed on Feb. 18, 2020.
Prior Publication US 2023/0120507 A1, Apr. 20, 2023
Int. Cl. F01D 11/12 (2006.01); F01D 11/24 (2006.01); F01D 25/12 (2006.01); F01D 11/00 (2006.01)
CPC F01D 11/122 (2013.01) [F01D 11/001 (2013.01); F01D 11/24 (2013.01); F01D 25/12 (2013.01); F05D 2220/30 (2013.01); F05D 2240/55 (2013.01); F05D 2260/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A turbine extending about an axis, comprising a rotor provided with a sealing lip and a stator surrounding the rotor, the rotor being rotatably mounted in the stator, the stator comprising a distributor provided with a platform from which at least one stationary vane extends along a radial direction, the platform carrying a main abradable sealing element cooperating with the lip, the platform radially delimiting a separation between a main space through which a hot air flow passes and a secondary air circulation space which radially extends between the lip and the main space, the rotor comprising an aperture through which air is blown to pass through the secondary space and reach the main space, wherein the distributor comprises a mainly radially extending flange carrying straightening fins which extend into the secondary space to straighten the air flow passing through the secondary space so as to modify its gyration before it is discharged towards the main space.