Turbojet having two counterrotating fans integral with a counterrotating low pressure compressor
DRIVE
September 14, 2005
The turbofan has front and rear counter-rotating fans (3, 5), at the front of an intermediate case (2), integrated to a counter-rotating low pressure compressor (7). Blades (14) of the fan (5) extend across a secondary flow (F2) channel (13), from a wheel (15). The distance between blades (10) of the fan (3) and the blades (14) is equal to twice the length of the axial projection of cord of head of the blades (10). The wheel (15) is integrated to an outer rotor (20) of the counter-rotating low pressure compressor.
Discussion in the ATmosphere