US 11,725,537 B2
Device for cooling a turbine casing with air jets
Nicolas Contini, Moissy-Cramayel (FR); Laurent Claude Descamps, Moissy-Cramayel (FR); Rémy Miled Michel Haynau, Moissy-Cramayel (FR); Maria Goossens, Moissy-Cramayel (FR); and Benoit Guillaume Silet, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 17/761,337
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Sep. 23, 2020, PCT No. PCT/FR2020/051654
§ 371(c)(1), (2) Date Mar. 17, 2022,
PCT Pub. No. WO2021/058908, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 1910476 (FR), filed on Sep. 23, 2019.
Prior Publication US 2022/0341347 A1, Oct. 27, 2022
Int. Cl. F01D 25/12 (2006.01); F01D 25/24 (2006.01)
CPC F01D 25/12 (2013.01) [F01D 25/24 (2013.01); F05D 2220/30 (2013.01); F05D 2240/14 (2013.01); F05D 2260/201 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An air-jet cooling device for a casing of a turbomachine, the air-jet cooling device comprising:
a cooling air housing having a wall;
a tube having a first end mounted on the wall of the housing so as to put the tube into fluid communication with the housing, a plurality of orifices being formed in a wall of the tube in order to eject the cooling air coming from the housing on the casing,
wherein
the tube comprises a section at the first end with a gradual variation that defines a boss, said boss having a curved surface configured to be immersed in the cooling air so as to avoid a detachment of a boundary layer of the cooling air at an interface between the first end of the tube and the housing.