CFMI PROPRIETARY INFORMATION
The CFM56-5B is a modular concept design engine. It has 17 different modules that are enclosed within three major modules and an accessory drive module.
The 4 modules are :
- The Fan Major Module
- The Core Engine Major Module
- The Low Pressure Turbine Major Module
- The Accessory Drive Module
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BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
CFM56-5B包H TRAINING MANUAL
FAN MAJOR MODULE
MODULAR DESIGN
CTC-063-008-01
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BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
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EFFECTIVITY
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BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
包 CFM56-5B TRAINING MANUAL
H
FAN SECTION
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BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
The fan section is at the front of the engine and, downstream from the air inlet cowl, the section includes the fan and booster module and fan frame module.
The purposes of the fan and booster are :
- to accelerate air overboard to generate thrust.
- to increase the pressure of the air directed to the
High Pressure Compressor (HPC).
After entering the air inlet cowl, the total engine airflow passes through the fan rotor, which increases the air’s kinetic energy.
Most of the airflow is ducted overboard producing approximately 80 % of the total thrust. The remainder is directed through the booster, where it is pressurized before entering the HPC.
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EFFECTIVITY
72-20-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
包 CFM56-5B TRAINING MANUAL
H
FAN SECTION
CTC-063-038-00
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BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
The Fan and Booster module consists of :
- a spinner front cone
- a spinner rear cone
- a single stage fan rotor
- a four stage axial booster
The spinner front cone is designed to minimize ice build-up and is attached to the spinner rear cone.
The spinner rear cone holds the blades axially in position of the fan disk.
The fan disk supports the mid-span shrouded fan blades and a booster spool.
The booster spool accommodates booster blade stages, numbers 2 thru 5.
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