F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
F02C 7/36 (2006.01) F01D 5/06 (2006.01) F01D 25/16 (2006.01) F02C 7/06 (2006.01)
Patent
CA 2475140
A low-pressure turbine of a turbomachine, the turbomachine comprising a high-pressure turbine (10) disposed upstream from the low-pressure turbine (12), and an exhaust casing (14) disposed downstream from the low-pressure turbine, the low-pressure turbine (12) comprising a rotor (16, 18) secured on a low-pressure trunnion (20), a low-pressure shaft (28), a first rolling bearing (30) disposed on said low-pressure shaft (28) and supporting a high-pressure trunnion (26) having fastened thereon a rotor (22, 24) of the high-pressure turbine (10), a second rolling bearing (32) disposed on said low-pressure trunnion (20) downstream from said first rolling bearing (30) and enabling said low-pressure trunnion (20) to be centered relative to said exhaust casing (14), and a system of fluting (34) for enabling said low-pressure trunnion (28) to drive said low-pressure shaft (20), said system of fluting (34) being disposed between said first (30) and second (32) rolling bearings.
Turbine basse-pression d'une turbomachine, la turbomachine comportant une turbine haute-pression (10) disposée en amont de la turbine basse-pression (12) et un carter d'échappement (14) disposé en aval de la turbine basse-pression, la turbine basse-pression (12) comportant un rotor (16, 18) fixé sur un tourillon basse-pression (20), un arbre basse-pression (28), un premier palier à roulement (30) disposé sur ledit arbre basse-pression (28) et supportant un tourillon haute-pression (26) sur lequel est fixé un rotor (22, 24) de la turbine haute-pression (10), un second palier à roulement (32) disposé sur ledit tourillon basse-pression (20) en aval dudit premier palier à roulement (30) et permettant de centrer ledit tourillon basse-pression (20) par rapport audit carter d'échappement (14), et un système de cannelures (34) pour l'entraînement dudit arbre basse-pression (28) par ledit tourillon basse-pression (20), ledit système de cannelures (34) étant disposé entre lesdits premier (30) et second paliers (32) à roulement.
Bart Jacques
Beutin Bruno
Bouiller Philippe
Robic
Snecma
Snecma Moteurs
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