Patent ID: 7966806
Filing Date: 2011-06-28
Classification: F02C,F05D

Abstract:
1. A method of assembling a turbofan engine assembly, said method comprising: providing a core gas turbine engine including a high-pressure compressor, a combustor, and a turbine; coupling a counter-rotating booster compressor to the core gas turbine engine, the counter-rotating booster compressor including a first rotor section configured to rotate in a first direction and a second rotor section configured to rotate in an opposite second direction; coupling a fan assembly to the core gas turbine engine; coupling a gearbox to the first rotor section, the second rotor section, and the fan assembly via gears; and coupling a low-pressure turbine to the gearbox such that the first rotor section, the second rotor section, and the fan assembly are driven by the low-pressure turbine via outputs of the gears of the gearbox.