COOLING TUBE INSERT FOR TURBOMACHINE DISTRIBUTOR Russian patent published in 2023 - IPC F01D9/04 F01D5/18 

FIELD: aircraft.

SUBSTANCE: invention relates to a tubular ventilation sleeve (1) for a turbomachine distributor, in particular to a jet cooling deflector for a turbine nozzle for an aircraft. The sleeve has, in general, an elongated shape along the axis (A-A) and comprises a perforated tubular wall (1a) around the mentioned axis, one of the axial ends of the sleeve is open, and the other is closed by the bottom wall (1b), the sleeve is characterized in that it additionally comprises support beams (7), when the sleeve (1) is created by additive manufacturing, said beams (7) pass inside the sleeve (1) between the tubular wall (1a) and the bottom wall (1b) and have a longitudinal section of a generally triangular shape, the two sides of which are respectively connected to the tubular wall (1a) and to the bottom wall (1b) and the last side of which is free and runs inside the sleeve, perforations (2) in the tubular wall (1a) are provided between the support beams (7).

EFFECT: sleeve can be made by additive manufacturing, which is a fast and economical method.

10 cl, 9 dwg