Gas turbine engine assembly and methods of assembling same

Details Gas turbine engine assembly and methods of assembling same Gas turbine engine assembly and methods of assembling same

2005-10-19

2009-02-24

Rodríguez, William H (Department: 3741)

Power plants

Reaction motor

Including counter rotating rotors

C060S226100, C060S039162, C415S009000

Reexamination Certificate

active

07493754

ABSTRACT:
A method for assembling a gas turbine engine including providing a core gas turbine engine at least partially defined by a frame and having a drive shaft rotatable about a longitudinal axis of the core gas turbine engine. A low-pressure turbine is coupled to a core turbine engine. A counter-rotating fan assembly is coupled to the low-pressure turbine. The counter-rotating fan assembly includes a first fan assembly and a second fan assembly. A booster compressor is coupled to the second fan assembly. A gearbox is securely coupled to the frame so that the gearbox is circumferentially positioned about the drive shaft. The first fan assembly is rotatably coupled to an input of the gearbox such that the first fan assembly rotates in a first direction. The second fan assembly is rotatably coupled to an output of the gearbox such that the second fan assembly rotates in a second direction opposite the first direction.

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