DOC AIRBUS | AMM A320FACCESSORY DRIVE SECTION - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
Power for both engine and aircraft accessories is extracted thru a system of gearboxes and shafts. The inlet gearbox, which is located in the fan frame hub, takes power from the HP compressor front shaft and transmits this power to the transfer gearbox, installed under the fan frame through the radial drive shaft. A horizontal drive shaft then transmits the power to accessory gearbox. The accessory gearbox drives the following equipment :
Power for both engine and aircraft accessories is extracted thru a system of gearboxes and shafts. The inlet gearbox, which is located in the fan frame hub, takes power from the HP compressor front shaft and transmits this power to the transfer gearbox, installed under the fan frame through the radial drive shaft. A horizontal drive shaft then transmits the power to accessory gearbox. The accessory gearbox drives the following equipment :
Accessory Drive System- The Integrated Drive Generator (IDG) (electrical power generation) at 0.5947 N2.
- Hydraulic pump (hydraulic power generation) at 0.256 N2.
- The Hydromechanical Unit (HMU) and the fuel pump at 0.423 N2.
- The lubrication unit at 0.423 N2.
- The ECU control alternator