DOC AIRBUS | AMM A320FEXHAUST - GENERAL - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The engine exhaust section directs fan discharge air for either normal or reverse thrust operation.
** ON A/C NOT FOR ALL The engine exhaust section directs fan discharge air for either normal or reverse thrust operation.
Exhaust - General- In forward thrust mode:
The fan air flow and burnt gases are evacuated directly at the back.
Part of the air absorbed by the fan is directly evacuated to the outside ; the remaining part is sent to the engine combustion chamber and burnt gases are ejected through hot exhaust. - In thrust reverser mode:
The thrust reverser system reverses cold fan air by means of pivoting doors, integrated in the short nacelle body, turns the engine airflow forward and provide a braking effect for the aircraft on the ground.
Thrust reverser mode can be operated only on the ground.
2. Description
The exhaust system consists of a core nozzle for hot exhaust and a fan reverser which incorporates the thrust reverser system and fan nozzle for fan air exhaust.
The exhaust system consists of a core nozzle for hot exhaust and a fan reverser which incorporates the thrust reverser system and fan nozzle for fan air exhaust.
A. Hot Exhaust System
(Ref. AMM D/O 78-11-00-00)
The hot exhaust system forms the rear part of the engine.
It consists of a centerbody and a core nozzle.
(Ref. AMM D/O 78-11-00-00)
The hot exhaust system forms the rear part of the engine.
It consists of a centerbody and a core nozzle.
B. Fan Exhaust
(Ref. AMM D/O 78-11-00-00)
The fan thrust reverser assembly forms a part of the nacelle and provides an annulus for exit of the fan flow in forward thrust conditions.
It consists of fixed cowls, with pivoting doors which form :
The fan thrust reverser assembly is hinged to the pylon and clamped to the engine fan frame.
(Ref. AMM D/O 78-11-00-00)
The fan thrust reverser assembly forms a part of the nacelle and provides an annulus for exit of the fan flow in forward thrust conditions.
It consists of fixed cowls, with pivoting doors which form :
- a continuation of the nacelle aerodynamic line
- the outer wall of the exhaust nozzle.
The fan thrust reverser assembly is hinged to the pylon and clamped to the engine fan frame.
C. Thrust Reverser System
(Ref. AMM D/O 78-30-00-00)
The fan thrust reverser assembly uses part of engine exhaust power to provide additional aerodynamic braking during aircraft landing.
The fan thrust reverser assembly is hydraulically actuated by the hydraulic pump mounted on the associated engine.
It is controlled by a lever hinged to the corresponding throttle control lever from the cockpit through two redundant and segregated circuits. The first one is EIU/ECU/HCU, the second one being SEC/static relay/SOV.
(Ref. AMM D/O 78-30-00-00)
The fan thrust reverser assembly uses part of engine exhaust power to provide additional aerodynamic braking during aircraft landing.
The fan thrust reverser assembly is hydraulically actuated by the hydraulic pump mounted on the associated engine.
It is controlled by a lever hinged to the corresponding throttle control lever from the cockpit through two redundant and segregated circuits. The first one is EIU/ECU/HCU, the second one being SEC/static relay/SOV.