F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
F02C 7/04 (2006.01) F01D 25/24 (2006.01) F01D 25/30 (2006.01)
Patent
CA 2416150
A diffuser (10) for a gas turbine engine, said diffuser being disposed between a last stage of a turbine and an exhaust casing, and comprising an outer annular wall (16a) and an inner annular wall (16b) together defining an annular passage (18) for fluid that diverges in the flow direction (F) of said fluid, at least one of the annular walls (16a, 16b) including a plurality of orifices (20) leading from said annular passage to at least one collecting box (22) leading to means for exhausting a fraction of said fluid so as to reduce the flow speed of said fluid in said annular passage.
Diffuseur (10) pour moteur à turbine à gaz, le diffuseur étant disposé entre un dernier étage d'une turbine et un carter d'échappement et comprenant une paroi annulaire externe (16a) et une paroi annulaire interne (16b) formant un passage annulaire (18) de fluide divergent dans le sens d'écoulement (F) du fluide, au moins l'une des parois annulaires (16a, 16b) comportant une pluralité d'orifices (20) s'ouvrant dans le passage annulaire et débouchant dans au moins un caisson (22) de collecte vers des moyens d'évacuation d'une partie du fluide de façon à diminuer la vitesse d'écoulement du fluide dans le passage annulaire.
Goudreau Gage Dubuc
Snecma
Snecma Moteurs
LandOfFree
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