DOC AIRBUS | AMM A320FFAN SECTION - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The engine fan is a large diameter, high bypass ratio, 4-stage, (1 for Fan, 3 for booster), axial flow, front mounted fan driven by the low pressure turbine. Main components of the fan section are the frame, the stator and the rotor.
The engine fan is a large diameter, high bypass ratio, 4-stage, (1 for Fan, 3 for booster), axial flow, front mounted fan driven by the low pressure turbine. Main components of the fan section are the frame, the stator and the rotor.
Fan and Booster Module SectionA. Fan Frame
The fan frame is the major support structure. It supports the front of the compressor, the fan rotor, fan stator, inlet gearbox and the forward engine mount. It also provides a variable valve system that consists of 12 variable bleed valves, located between the struts.
The fan frame is the major support structure. It supports the front of the compressor, the fan rotor, fan stator, inlet gearbox and the forward engine mount. It also provides a variable valve system that consists of 12 variable bleed valves, located between the struts.
B. Fan Rotor
The fan rotor has a large diameter - 71.50 in (1816 mm) - first stage, and 3 reduced diameter second, third and fourth stages which supercharge the inner portion of the fan flow including all of the air entering the compressor.
The fan rotor has a large diameter - 71.50 in (1816 mm) - first stage, and 3 reduced diameter second, third and fourth stages which supercharge the inner portion of the fan flow including all of the air entering the compressor.
C. Fan Shaft
The fan shaft connects the fan rotor to the low pressure turbine rotor.
The shaft transmits torque from the turbine rotor to the fan rotor.
The fan shaft connects the fan rotor to the low pressure turbine rotor.
The shaft transmits torque from the turbine rotor to the fan rotor.
D. Fan Stator
The fan stator contains fixed stator vanes mounted behind all stages of the rotor. Acoustic panels line the fan casing to further reduce sound levels.
The fan stator contains fixed stator vanes mounted behind all stages of the rotor. Acoustic panels line the fan casing to further reduce sound levels.