Safran Aircraft Engines

Adrien Moussette

Bertrand Guillaume Robin Pellaton

Baptiste Marie Aubin Pierre Jouy

Loic Villard

Loïc Villard

An assembly for a turbine of a turbine engine, including a casing and an annular duct surrounding the casing, which can be connected to a device for supplying cooling air, and having a radially inner annular wall provided with openings arranged opposite the casing in order to cool same by the impact of cooling-air jets. The casing has a plurality of axial grooves including first grooves and second grooves arranged in alternation, and the openings are distributed in a plurality of annular rows in which any pair of consecutive annular rows is such that the openings of one of the annular rows of the pair are centered relative to the first grooves while the openings of the other annular row of the pair are centered relative to the second grooves.

Assembly for turbine

The invention relates to a ventilation device for a turbomachine turbine casing, comprising a plurality of line sets (') configured to spray air over the turbine casing, the line sets being arranged next to one another, each line set comprising a main ring () in which air circulates, the main ring () comprising orifices (&#x2032;) configured to spray a stream of air towards the turbine casing, the line set comprising a shield () configured to isolate the main ring () from a stream of air returning from the turbine casing towards the line sets after having been sprayed towards the turbine casing, the said shield () enveloping the main ring () and having orifices aligned with the orifices of the main ring ().

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Moissy-Cramayel, France

Adrien Moussette