Assembly method for a gas turbine fan drive gear system

摘要

This invention relates to an oil baffle arrangement for use in an epicyclic gear train (22) employed to drive a turbo fan (18), a gas turbine engine (10) and a method of assembling an epicyclic gear train (22). The epicyclic gear train (22) employs a one-piece carrier (34) in which the spaced side walls (60) are interconnected with circumferentially spaced apart mounts (54) to form a unitary structure. Baffles (68) are secured to the carrier (34) near the mounts (54) and provide lubrication passages that spray oil onto the sun gear (28) and/or intermediate gears (32) arranged between the baffles (68). The baffles (68) can be constructed from a different material than the carrier (34) since the baffles are not structural components in the gear train (32).