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1. (WO2018083403) COOLING DEVICE FOR A TURBINE OF A TURBOMACHINE

Pub. No.:    WO/2018/083403    International Application No.:    PCT/FR2017/052964
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Sat Oct 28 01:59:59 CEST 2017
IPC: F01D 11/24
Applicants: SAFRAN AIRCRAFT ENGINES
Inventors: JOUY, Baptiste, Marie, Aubin, Pierre
CONTINI, Nicolas
DOUBLIER, Arnaud
DUBOIS DOROGI, Vincent
PRESTEL, Sébastien, Jean, Laurent
Title: COOLING DEVICE FOR A TURBINE OF A TURBOMACHINE
Abstract:
The invention relates to a cooling device (11) for a turbine of a turbomachine extending along an axis, comprising at least one radially inner metal sheet (14) and a radially outer metal sheet (15) that are joined to one another and delimit, between them, cooling air circulation channels (17) extending circumferentially from a connection region (16), each channel (17) comprising at least one air inlet and air ejection orifices (19) that are designed to be oriented toward a region that is to be cooled, characterized in that it comprises means for cooling said metal sheets comprising at least one cooling duct (21) intended for the circulation of cooling air, said duct (21) being located radially outside said metal sheets (14, 15) and close to or in contact with said metal sheets so as to cool said metal sheets using the cooling air circulating in the duct (21), the cooling duct (21) extending axially and being arranged opposite circumferential end regions of the channels (17).