Turbojet with fan connected to a drive shaft supported by a...

F - Mech Eng,Light,Heat,Weapons – 01 – D

Patent

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Details

F01D 25/28 (2006.01) F01D 21/04 (2006.01) F01D 25/16 (2006.01) F02C 7/06 (2006.01)

Patent

CA 2495982

This invention pertains to a turbo-jet engine comprising a fixed structure, a fan rotor (2) integral with a drive shaft (5) supported by a first bearing (6) and a second bearing (7). The invention is characterized in that the turbo-jet engine is provided with a means (28) forming an axial retaining means for the fan rotor 2 and/or forming an emergency bearing, cooperating with means (32, 33) of the fixed structure and mounted integral with the drive shaft (5). In particular, the means (28) forming the axial retaining means for the fan (2) and/or forming the emergency bearing is provided with a retaining disk 28, and the retaining disk (28) is mounted on the drive shaft (5), cooperates with a stop disk (33) of a flange (18) for axially retaining the fan (2) and with a longitudinal sleeve (32) of the flange (18) to form the emergency bearing.

La présente invention porte sur un turboréacteur, comprenant une structure fixe, un rotor de soufflante (2), solidaire d'un arbre d'entraînement (5) supporté par un premier palier (6) et un deuxième palier (7). Il est caractérisé par le fait qu'il comprend des moyens (28) formant retenue axiale du rotor de la soufflante (2) et/ou palier de secours, coopérant avec des moyens (32, 33) de la structure fixe, et montés solidaires de l'arbre d'entraînement (5). En particulier il comprend un flasque structurel (18) sur lequel est fixé le deuxième palier (7), et les moyens formant retenue axiale de la soufflante (2) et/ou palier de secours comportent un disque de retenue (28), monté sur l'arbre d'entraînement (5) et coopérant avec un disque d'arrêt (33) du flasque (18) pour la retenue axiale de la soufflante (2) et un manchon longitudinal (32) du flasque (18) pour former palier de secours.

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