US 6,981,845 B2
Blade for a turbine comprising a cooling air deflector
Morgan Lionel Balland, Paris (France); and Sylvie Coulon, Bois le Roi (France)
Assigned to Snecma Moteurs, Paris (France)
Appl. No. 10/474,038
PCT Filed Apr. 17, 2002, PCT No. PCT/FR02/01325
§ 371(c)(1), (2), (4) Date Oct. 14, 2003,
PCT Pub. No. WO02/086291, PCT Pub. Date Oct. 31, 2002.
Claims priority of application No. 01 05289 (FR), filed on Apr. 19, 2001.
Prior Publication US 2004/0115054 A1, Jun. 17, 2004
Int. Cl. F01D 5/08 (2006.01)
U.S. Cl. 416—96R 20 Claims
OG exemplary drawing
 
19. A turbine blade, comprising:
a dovetail root configured to fit the blade into a compartment of a turbine disk;
an internal air cooling circuit comprising an air inlet located on a face of the dovetail root facing the compartment; and
means for preventing a formation of a vortex on a cooling air flow flowing from the compartment to the air cooling circuit through the air inlet.